NW 47TH AVENUE PROJECT DEVELOPMENT & ENVIRONMENTAL

Transcription

1 VALUE ENGINEERING STUDY OF NW 47TH AVENUE PROJECT DEVELOPMENT & ENVIRONMENTAL FM Number: STUDY NUMBER: MIAMI, FLORIDA October 21-25, 2013 FINAL REPORT In Association With: THE FLORIDA DEPARTMENT OF TRANSPORTATION DISTRICT 6 VE GROUP, L.L.C. 15 West King Street Quincy, Florida Post Office Box 179 Quincy, Florida (850) Fax (850) ~ delores@vegroupllc.com

2 VALUE ENGINEERING STUDY OF NW 47TH AVENUE PROJECT DEVELOPMENT&ENVIRONMENTAL FM Number: STUDY NUMBER: MIAMI, FLORIDA October 21-25, 2013 FINAL REPORT In Association With: FLORIDA DEPARTMENT OF TRANSPORTATION DISTRICT 6 This report includes a summary of data collection, alternative analysis, and Value Engineering recommendations. I acknowledge that the procedure and reference used to develop the results contained in the report are standard to the Professional Practice of Value Engineering, as applied through Professional Judgment and Experiences. I hereby certify that I am a Registered Professional Engineer in the State of Florida and that this study has been performed in the accordance with current applicable FDOT Value Engineering Procedures. VALUE ENGINEERING STUDY TEAM LEADER DATE:

3 TABLE OF CONTENTS ITEM NO. DESCRIPTION PAGE NO. I. EXECUTIVE SUMMARY 1-23 RECOMMENDATIONS/RESOLUTION 3 II. LOCATION OF PROJECT 24 III. TEAM MEMBERS AND PROJECT DESCRIPTION IV. INVESTIGATION PHASE V. FUNCTIONAL ANALYSIS PHASE VI. SPECULATION PHASE VII. EVALUATION PHASE ALTERNATIVES 35 ADVANTAGES AND DISADVANTAGES 37 MID POINT VE ALTERNATIVE MEETING 48 VIII. DEVELOPMENT PHASE A. DRAINAGE AS PROPOSED 50 VALUE ENGINEERING ALTERNATIVE NO. 1A 51 VALUE ENGINEERING ALTERNATIVE NO. 1B 53 B. SNAKE CREEK CANAL BRIDGE AS PROPOSED 59 VALUE ENGINEERING ALTERNATIVE NO VALUE ENGINEERING ALTERNATIVE NO. 3A 69 VALUE ENGINEERING ALTERNATIVE NO. 3B 72

4 TABLE OF CONTENTS ITEM NO. DESCRIPTION PAGE NO. VIII. DEVELOPMENT PHASE (continued) C. 183RD STREET INTERSECTION AS PROPOSED 75 VALUE ENGINEERING ALTERNATIVE NO VALUE ENGINEERING ALTERNATIVE NO. 5 (DROPPED DURING EVALUATION PHASE) VALUE ENGINEERING ALTERNATIVE NO. 6 (DROPPED DURING EVALUATION PHASE) VALUE ENGINEERING ALTERNATIVE NO. 7 (DROPPED DURING EVALUATION PHASE) D. SIDEWALKS AS PROPOSED 85 VALUE ENGINEERING ALTERNATIVE NO E. INTERSECTIONS AS PROPOSED 89 VALUE ENGINEERING ALTERNATIVE NO. 9A,B,C,D 95 F. LANDSCAPING AS PROPOSED 114 VALUE ENGINEERING ALTERNATIVE NO G. CAROL CITY CANAL BRIDGE AS PROPOSED 118 VALUE ENGINEERING ALTERNATIVE NO IX. FINAL PRESENTATION ATTENDEE SHEET 124

5 I. EXECUTIVE SUMMARY INTRODUCTION This Value Engineering report summarizes the results of the Value Engineering Study performed by VE Group, L.L.C., for the Florida Department of Transportation District 6. The study was performed during the week of October 21-25, The subject of the study was NW 47 th AVENUE PROJECT DEVELOPMENT & ENVIRONMENTAL (PD&E). PROJECT DESCRIPTION The PD&E Study included the No Build Alternative which is a no action alternative as a baseline comparison with the build alternatives. Several build alternatives were evaluated that meet the purpose and need and they are generally described by the following project description. This roadway capacity improvement will add one lane in each direction to the two-lane undivided section of SR 847 from NW 183 Street in Miami-Dade County to Premier Parkway in Broward County, providing a continuous four-lane north-south facility which is consistent with the existing four-lane sections to the south and north of the project segment. Classified by the Florida Department of Transportation (FDOT) as an Urban Minor Arterial, SR 847 runs parallel to SR 817/ NW 27 th Avenue and SR 823/NW 57 th Avenue, which all connect Miami-Dade County with Broward County. The length of the project is approximately miles. The improvements typically occur within the existing rightof-way (ROW) width, which is approximately 100 ft, with additional right of way required at locations where left and right turn lanes are required. Additional intersection improvements, such as new signalization, left turn lanes, right turn lanes and pedestrian crossing features are also considered in the build alternatives. Roadside improvements include sidewalks, bus stops and bus shelters, landscape and street lighting. A new stormwater drainage system is required to accommodate the additional impervious area and meet stormwater permit requirements. The Carol City Canal (A-2) bridge is a single two-lane bridge that is located near the intersection of SR 847 and NW 195 th Terrace. This bridge once crossed the Carol City Canal, however the canal was backfilled to the right of way line and now the canal flow is through a culvert under the existing bridge. The Carol City Canal bridge structure may be removed since it no longer crosses the canal. Bridge No , where SR 847 crosses over the C-9/Snake Creek Canal (MP 1.708) will be widened, retrofitted or replaced to maintain consistency with the new roadway lane width and configuration. SR 847 passes under the Florida Turnpike bridge near Premier Parkway. Estimated Construction Cost: $20,500,000 Estimated Right of Way Cost: $16,000,000 1

6 I. EXECUTIVE SUMMARY METHODOLOGY The Value Engineering Team followed the basic Value Engineering procedure for conducting this type of analysis. This process included the following phases: 1. Information/Investigation 2. Functional Analysis 3. Speculation 4. Evaluation 5. Development 6. Presentation 7. Report Preparation 2

7 I. EXECUTIVE SUMMARY RESULTS RECOMMENDATIONS - RESOLUTION The following Value Engineering Alternatives were developed and are recommended for Implementation: VALUE ENGINEERING RECOMMENDATIONS 1. DRAINAGE Value Engineering Alternative No. 1A: Reduce the french drain with a swale at the landfill. (See pg. 34 for details) Possible savings of $322, DRAINAGE Value Engineering Alternative No. 1B: Use the area where R/W relocation will occur for swale and reduce french drain. (See pg. 36 for details) Possible savings of $89, SNAKE CREEK CANAL BRIDGE Value Engineering Alternative No. 2: Eliminate the southbound turn lane at 207th Street Intersection and widen the existing bridge to four lanes only. (See pg. 43 for details) Possible savings of $646, Life Cycle Cost savings of $490, RECOM- MEND ACCEPT RECOM- MEND REJECT STUDY FURTHER/ COMMENTS FHWA CATEGORIES SAFETY: Recommendations that mitigate or reduce hazards on the facility. ENVIRONMENT: Recommendations that successfully avoid or mitigate impacts to natural and/or cultural resources. OPERATION: Recommendations that improve real-time service and/or local corridor or regional levels of service. CONSTRUCTION: Recommendations that improve work zone conditions, or expedite the project delivery. OTHER: Recommendations not readily categorized by above performance indicators. SAFETY: Recommendations that mitigate or reduce hazards on the facility. ENVIRONMENT: Recommendations that successfully avoid or mitigate impacts to natural and/or cultural resources. OPERATION: Recommendations that improve real-time service and/or local corridor or regional levels of service. CONSTRUCTION: Recommendations that improve work zone conditions, or expedite the project delivery. OTHER: Recommendations not readily categorized by above performance indicators. SAFETY: Recommendations that mitigate or reduce hazards on the facility. ENVIRONMENT: Recommendations that successfully avoid or mitigate impacts to natural and/or cultural resources. OPERATION: Recommendations that improve real-time service and/or local corridor or regional levels of service. CONSTRUCTION: Recommendations that improve work zone conditions, or expedite the project delivery. OTHER: Recommendations not readily categorized by above performance indicators. X X X 4. SNAKE CREEK CANAL BRIDGE Value Engineering Alternative No. 3A: Widen the existing bridge for a 14 ft. flush median only. (See pg. 52 for details) Possible savings of $519, Life Cycle Cost savings of $393, SAFETY: Recommendations that mitigate or reduce hazards on the facility. ENVIRONMENT: Recommendations that successfully avoid or mitigate impacts to natural and/or cultural resources. OPERATION: Recommendations that improve real-time service and/or local corridor or regional levels of service. CONSTRUCTION: Recommendations that improve work zone conditions, or expedite the project delivery. OTHER: Recommendations not readily categorized by above performance indicators. X (Continued) 3

8 VALUE ENGINEERING RECOMMENDATIONS 5. SNAKE CREEK CANAL BRIDGE Value Engineering Alternative No. 3B: Widen the existing bridge and replace the deck. (See pg. 55for details) Possible savings of $180, Life Cycle Cost savings of $136, RECOM- MEND ACCEPT RECOM- MEND REJECT STUDY FURTHER/ COMMENTS FHWA CATEGORIES SAFETY: Recommendations that mitigate or reduce hazards on the facility. ENVIRONMENT: Recommendations that successfully avoid or mitigate impacts to natural and/or cultural resources. OPERATION: Recommendations that improve real-time service and/or local corridor or regional levels of service. CONSTRUCTION: Recommendations that improve work zone conditions, or expedite the project delivery. OTHER: Recommendations not readily categorized by above performance indicators. X SAFETY: Recommendations that mitigate or reduce hazards on the facility RD STREET INTERSECTION Value Engineering Alternative No. 4: ENVIRONMENT: Recommendations that successfully avoid or mitigate impacts to natural and/or cultural resources. Remove double left turn lanes on Miami Gardens Drive and relocate turns to 47 th Avenue. (See pg. 60 for details) Possible savings of $14,557, OPERATION: Recommendations that improve real-time service and/or local corridor or regional levels of service. CONSTRUCTION: Recommendations that improve work zone conditions, or expedite the project delivery. OTHER: Recommendations not readily categorized by above performance indicators. X 6A. If VE Alternative No. 4 is implemented, then VE Alternative No. 9A should be implemented: Use roundabout intersections. (See pg. 80 for details) Possible additional cost of $76, SIDEWALKS Value Engineering Alternative No. 8: Move sidewalks to right of way line and reduce to 5 ft. width. (See pg. 69 for details) Possible savings of $108, SAFETY: Recommendations that mitigate or reduce hazards on the facility. ENVIRONMENT: Recommendations that successfully avoid or mitigate impacts to natural and/or cultural resources. OPERATION: Recommendations that improve real-time service and/or local corridor or regional levels of service. CONSTRUCTION: Recommendations that improve work zone conditions, or expedite the project delivery. OTHER: Recommendations not readily categorized by above performance indicators. SAFETY: Recommendations that mitigate or reduce hazards on the facility. ENVIRONMENT: Recommendations that successfully avoid or mitigate impacts to natural and/or cultural resources. OPERATION: Recommendations that improve real-time service and/or local corridor or regional levels of service. CONSTRUCTION: Recommendations that improve work zone conditions, or expedite the project delivery. OTHER: Recommendations not readily categorized by above performance indicators. X X (Continued) 4

9 VALUE ENGINEERING RECOMMENDATIONS RECOM- MEND ACCEPT RECOM- MEND REJECT STUDY FURTHER/ COMMENTS FHWA CATEGORIES 8. INTERSECTIONS SEE RECOMMENDATION 6A (VE Alternative 9A is recommended as part of recommendation 6.) 9. INTERSECTIONS Value Engineering Alternative No. 9B: Use roundabout intersections. (See pg. 85 for details) Possible added cost of $162, INTERSECTIONS Value Engineering Alternative No. 9C: Use roundabout intersections. (See pg. 89 for details) Possible added cost of $162, INTERSECTIONS Value Engineering Alternative No. 9D: Use roundabout intersections. (See pg. 93 for details) Possible savings f $136, SAFETY: Recommendations that mitigate or reduce hazards on the facility. ENVIRONMENT: Recommendations that successfully avoid or mitigate impacts to natural and/or cultural resources. OPERATION: Recommendations that improve real-time service and/or local corridor or regional levels of service. CONSTRUCTION: Recommendations that improve work zone conditions, or expedite the project delivery. OTHER: Recommendations not readily categorized by above performance indicators. SAFETY: Recommendations that mitigate or reduce hazards on the facility. ENVIRONMENT: Recommendations that successfully avoid or mitigate impacts to natural and/or cultural resources. OPERATION: Recommendations that improve real-time service and/or local corridor or regional levels of service. CONSTRUCTION: Recommendations that improve work zone conditions, or expedite the project delivery. OTHER: Recommendations not readily categorized by above performance indicators. SAFETY: Recommendations that mitigate or reduce hazards on the facility. ENVIRONMENT: Recommendations that successfully avoid or mitigate impacts to natural and/or cultural resources. OPERATION: Recommendations that improve real-time service and/or local corridor or regional levels of service. CONSTRUCTION: Recommendations that improve work zone conditions, or expedite the project delivery. OTHER: Recommendations not readily categorized by above performance indicators. SAFETY: Recommendations that mitigate or reduce hazards on the facility. ENVIRONMENT: Recommendations that successfully avoid or mitigate impacts to natural and/or cultural resources. OPERATION: Recommendations that improve real-time service and/or local corridor or regional levels of service. CONSTRUCTION: Recommendations that improve work zone conditions, or expedite the project delivery. OTHER: Recommendations not readily categorized by above performance indicators. X X X 5

10 VALUE ENGINEERING RECOMMENDATIONS RECOM- MEND ACCEPT RECOM- MEND REJECT STUDY FURTHER/ COMMENTS FHWA CATEGORIES 12. LANDSCAPING Value Engineering Alternative No. 10: Use FDOT standard for landscaping. (See pg. 98 for details) Possible savings f $631, CAROL CITY CANAL BRIDGE Value Engineering Alternative No. 11: Construct new 36 in. pipe to junction with existing NW 195th Terrace pipe, do not remove existing bridge or the 36 in. pipe under the bridge and remove the existing 36 in. pipe where new roadway will be constructed. (See pg. 103 for details) Possible savings f $259, SAFETY: Recommendations that mitigate or reduce hazards on the facility. ENVIRONMENT: Recommendations that successfully avoid or mitigate impacts to natural and/or cultural resources. OPERATION: Recommendations that improve real-time service and/or local corridor or regional levels of service. CONSTRUCTION: Recommendations that improve work zone conditions, or expedite the project delivery. OTHER: Recommendations not readily categorized by above performance indicators. SAFETY: Recommendations that mitigate or reduce hazards on the facility. ENVIRONMENT: Recommendations that successfully avoid or mitigate impacts to natural and/or cultural resources. OPERATION: Recommendations that improve real-time service and/or local corridor or regional levels of service. CONSTRUCTION: Recommendations that improve work zone conditions, or expedite the project delivery. OTHER: Recommendations not readily categorized by above performance indicators. Safety 1 X X X Environment 1 TOTAL Operation 4 Construction 3 Other 4 6

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28 II. LOCATION OF PROJECT 24

29 III. TEAM MEMBERS AND PROJECT DESCRIPTION VALUE ENGINEERING TEAM MEMBERS NW 47TH AVENUE PD&E October 21-25, 2013 NAME AFFILIATION EXPERTISE PHONE William F. Ventry, P.E., C.V.S.(Life) VE Group, L.L.C. Team Leader 850/ Tom Hartley, P.E., C.V.S. (Life) Ronald Wishon Jerry Potter, P.E. Gordon Burleson, P.E. VE Group, L.L.C. VE Group, L.L.C. VE Group, L.L.C. VE Group, L.L.C. Traffic/Interchange Design Team Member 850/ Estimates/Roadway Team Member 850/ Structures Design Team Member 850/ Construction Team Member 850/ Frank Ventry, A. V. S. VE Group, L.L.C. CADD/Assistant Team Leader Lola Benitez FDOT Roadway Team Member 850/ /

30 III. TEAM MEMBERS AND PROJECT DESCRIPTION PROJECT DESCRIPTION The PD&E Study included the No Build Alternative which is a no action alternative as a baseline comparison with the build alternatives. Several build alternatives were evaluated that meet the purpose and need and they are generally described by the following project description. This roadway capacity improvement will add one lane in each direction to the two-lane undivided section of SR 847 from NW 183 Street in Miami-Dade County to Premier Parkway in Broward County, providing a continuous four-lane north-south facility which is consistent with the existing four-lane sections to the south and north of the project segment. Classified by the Florida Department of Transportation (FDOT) as an Urban Minor Arterial, SR 847 runs parallel to SR 817/NW 27 th Avenue and SR 823/NW 57 th Avenue, which all connect Miami-Dade County with Broward County. The length of the project is approximately miles. The improvements typically occur within the existing right-of-way (ROW) width, which is approximately 100 ft., with additional right of way required at locations where left and right turn lanes are required. Additional intersection improvements, such as new signalization, left turn lanes, right turn lanes and pedestrian crossing features are also considered in the build alternatives. Roadside improvements include sidewalks, bus stops and bus shelters, landscape and street lighting. A new stormwater drainage system is required to accommodate the additional impervious area and meet stormwater permit requirements. The Carol City Canal (A-2) bridge is a single two-lane bridge that is located near the intersection of SR 847 and NW 195 th Terrace. This bridge once crossed the Carol City Canal, however the canal was backfilled to the right of way line and now the canal flow is through a culvert under the existing bridge. The Carol City Canal bridge structure may be removed since it no longer crosses the canal. Bridge No , where SR 847 crosses over the C-9/Snake Creek Canal (MP 1.708) will be widened, retrofitted or replaced to maintain consistency with the new roadway lane width and configuration. SR 847 passes under the Florida Turnpike bridge near Premier Parkway. 26

31 IV. INVESTIGATION PHASE VALUE ENGINEERING STUDY BRIEFING NW 47TH AVENUE PD&E October 21, 2013 NAME AFFILIATION PHONE William F. Ventry VE Group, L.L.C. 850/ Tom Hartley VE Group, L.L.C. 850/ Ronald Wishon VE Group, L.L.C. 850/ Jerry Potter VE Group, L.L.C. 850/ Gordon Burleson VE Group, L.L.C. 850/ Frank Ventry VE Group, L.L.C. 850/ Lexi Johnsen Stanley Consultants 561/ Fang Mei FDOT 305/ Stephanie Crawford Stantec 305/ Joy Castro FDOT 305/ Luis Silva ADA Engineering 305/ Richard Glass Glass Land Acquisition 305/ Ben Boss Stanley Consultants 561/ Dan Hill Stanley Consultants 561/ Bao-Ying Wang FDOT 305/ Andres Diaz FDOT 786/ Lola Benitez FDOT 305/ Nick Danu FDOT (305)

32 IV. INVESTIGATION PHASE VALUE ENGINEERING STUDY RESOURCES NW 47TH AVENUE PD&E October 21-25, 2013 NAME AFFILIATION PHONE Bao-Ying Wang FDOT 305/ Lexi Johnsen Stanley Consultants 561/ Luis Silva ADA Engineering 305/ Dan Hill Stanley Consultants 561/ Richard Glass Glass Land Acquisition 305/ Joy Castroo FDOT 305/ Blanca Gardia Glass Land Acquisition 305/

33 V. FUNCTIONAL ANALYSIS PHASE PARETO CHART COST X $1,000,000 $20 $18 $16 $14 $12 $10 $8 $6 $4 $2 $0 LIGHTING SIGNALS CURB & SNAKE DRAINAGE MAINLINE NW 183RD FRONTAGE WORK ITEMS PARETO CHART NW 191 ST NW 195TH NW 199TH SIDEWALK NW 199TH REGULAR TEMP SIGNING & CONCRETE EMBANKMENT REMOVE OLD RETAINING CAROL CITY NW 215TH LANDSCAPING 29

34 V. FUNCTIONAL ANALYSIS PHASE VALUE ENGINEERING FUNCTIONAL ANALYSIS WORKSHEET NW 47TH AVENUE PD&E October 21-25, 2013 ITEM FUNCT. VERB FUNCT. NOUN *TYPE COST WORTH VALUE INDEX Mainline Pavement Support Vehicles B $3,900,000 $3,000, Drainage Convey Water B $3,900,000 $3,400, Snake Creek Canal Bridge Span Creek B $2,600,000 $2,400, Curb and Gutter Convey Water B $1,000,000 $1,000, NW 183rd Street Intersection Control Access B $19,000,000 $1,000, Lighting Illuminate Area B $700,000 $700, Frontage Roads Provide Access B $700,000 $700, Sidewalks Pedestrian Access B $ 00,000 $500, Clearing and Grubbing 199th Street Intersection 191st Street Intersection Clear Area B $600,000 $600, Control Access B $700,000 $700, Control Access B $500,000 $350, Landscaping Provide Aesthetics B $400,000 $120,

35 V. FUNCTIONAL ANALYSIS PHASE VALUE ENGINEERING FUNCTIONAL ANALYSIS WORKSHEET (Continued) NW 47TH AVENUE PD&E October 21-25, 2013 ITEM 195th Street Intersection 215th Street Intersection FUNCT. VERB FUNCT. NOUN *TYPE COST WORTH VALUE INDEX Control Access B $ 500,000 $350, Control Access B $ 400,000 $250, Retaining Walls Retain Material B $ 200,000 $200, Carol City Canal Bridge Span Area S $ 300,000 $150, Embankment Provide Profile B $ 170,000 $170, Signing and Pavement Marking Direct Drivers B $ 80,000 $80, Erosion Control Control Erosion B $ 80,000 $80, *B Basic S Secondary ** Note: This worksheet is a tool of the Value Engineering process and is only used for determining the areas that the Value Engineering Team should focus on for possible alternatives. The column for COST indicates the approximate amount of the cost as shown in the cost estimate. The column for WORTH is an estimated cost for the lowest possible alternative that would provide the FUNCTION shown. Many times the lowest cost alternatives are not considered implementable but are used only to establish a worth for a function. A value index greater than 1.00 indicates the Value Engineering Team intends to focus on this area of the project. 31

36 V. FUNCTIONAL ANALYSIS PHASE The following Areas have a value index greater than 1.00 on the proceeding Functional Analysis Worksheet and therefore have been identified by the Value Engineering Team as Areas of Focus and investigation for the Value Engineering process: A. DRAINAGE B. SNAKE CREEK CANAL BRIDGE C. 183RD STREET INTERSECTION D. SIDEWALKS E. INTERSECTIONS F. LANDSCAPING G. CAROL CITY CANAL BRIDGE 32

37 VI. SPECULATION PHASE Ideas generated, utilizing the brainstorming method, for performing the functions of previously identified Areas of Focus. A. DRAINAGE Reduce the french drain with a swale at the landfill Use a different treatment than french drain Use retention ponds Use the area where R/W relocation will occur for swale and reduce french drain Use injection wells B. SNAKE CREEK CANAL BRIDGE Eliminate the southbound turn lane at 207th Street Intersection and widen the existing bridge to four lanes only Widen the existing bridge for a 14 ft. flush median only Build a new bridge on the south side of the existing bridge Build two separate new bridges Build a single new bridge Fill canal and use box culvert Fill canal and use multiple pipes Widen the existing bridge and replace the deck C. 183 RD STREET INTERSECTION Remove double left turn lanes on Miami Gardens Drive and relocate turns to 47th Avenue Use a double crossover intersection Use a continuous flow intersection Purchase new right of way and move existing transmission line Reduce lanes widths on Miami Gardens Drive enough to avoid transmission line No Build on 183rd Street portion of intersection Use roundabout intersection 33

38 VI. SPECULATION PHASE D. SIDEWALKS Reduce sidewalk width to 5 ft. Eliminate sidewalk on one side Eliminate sidewalks on both sides Move sidewalks to right of way line and reduce to 5 ft. width E. INTERSECTIONS Use a double crossover intersection Use a continuous flow intersection Use roundabout intersection F. LANDSCAPING Reuse the existing plants, if possible Use the FDOT standard for landscaping Eliminate the landscaping Require landscaping to be provided by the county G. CAROL CITY CANAL BRIDGE Do nothing, leave pipe and bridge as is Keep existing pipe, clean out and use a pipe liner Construct new 48 in. pipe on diagonal Construct new 36 in. pipe to junction with existing NW 195th Terrace pipe, do not remove existing bridge or the 36 in. pipe under the bridge and remove the existing 36 in. pipe where new roadway will be constructed 34

39 VII. EVALUATION PHASE ALTERNATIVES The following Alternatives were formulated during the "eliminate and combine" portion of the Evaluation Phase. A. DRAINAGE Value Engineering Alternative No. 1A: Value Engineering Alternative No. 1B: Reduce the french drain with a swale at the landfill. Use the area where right of way relocation will occur for swale and reduce french drain. B. SNAKE CREEK CANAL BRIDGE Value Engineering Alternative No. 2: Value Engineering Alternative No. 3A: Value Engineering Alternative No. 3B: Eliminate the southbound turn lane at 207th Street Intersection and widen the existing bridge to four lanes only. Widen the existing bridge for a 14 ft. flush median only. Widen the existing bridge and replace the deck. C. 183 rd STREET INTERSECTION Value Engineering Alternative No. 4: Value Engineering Alternative No.5: Value Engineering Alternative No.6: Value Engineering Alternative No.7: Remove double left turn lanes on Miami Gardens Drive and relocate turns to 47 th Avenue. Use a double crossover intersection. Use a continuous flow intersection. Reduce widths on Miami Gardens Drive enough to avoid transmission line. D. SIDEWALKS Value Engineering Alternative No.8: Move sidewalks to right of way line and reduce to 5 ft. width. 35

40 VII. EVALUATION PHASE ALTERNATIVES E. INTERSECTIONS Value Engineering Alternative No. 9A,B,C&D: Use roundabout intersections. F. LANDSCAPING Value Engineering Alternative No. 10: Use the FDOT standard for landscaping. G. CAROL CITY CANAL BRIDGE Value Engineering Alternative No. 11: Construct new 36 in. pipe to junction with existing NW 195th Terrace pipe, do not remove existing bridge or the 36 in. pipe under the bridge and remove the existing 36 in. pipe where new roadway will be constructed. 36

41 VII. EVALUATION PHASE ADVANTAGES AND DISADVANTAGES The following Advantages and Disadvantages were developed for the Value Engineering Alternatives previously generated during the speculation phase. It also includes the Advantages and Disadvantages for the As Proposed. A. DRAINAGE "As Proposed": French drain for the entire project. Advantages Can meet stormwater requirements May be easy to permit Disadvantages High construction cost Longer construction time May not work near contaminated Surfside Dump Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT Value Engineering Alternative No. 1A: Reduce the french drain with a swale at the landfill. Advantages Lower construction cost Less construction time Can meet stormwater requirements Disadvantages May be more difficult to permit Contaminated soil Surfside Dump Requires a right of way acquisition Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT 37

42 VII. EVALUATION PHASE ADVANTAGES AND DISADVANTAGES A. DRAINAGE Value Engineering Alternative No. 1B: Use the area where right-of-way relocation will occur for swale and reduce french drain. Advantages Lower construction cost Less construction time Can meet stormwater requirements Disadvantages May not be viable if right of way relocations do not occur Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT 38

43 VI. EVALUATION PHASE B. SNAKE CREEK CANAL BRIDGE ADVANTAGES AND DISADVANTAGES "As Proposed": New bridge. Advantages All new bridge Longer service life Disadvantages Higher construction cost Longer construction time More MOT Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT Value Engineering Alternative No. 2: Eliminate the southbound turn lane at 207th Street Intersection and widen the existing bridge to four lanes only. Advantages Lower construction cost Less construction time Utilizes the remaining life of the existing bridge Disadvantages No left turn lane into SB 207th street Less service life Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT 39

44 VII. EVALUATION PHASE ADVANTAGES AND DISADVANTAGES B. SNAKE CREEK CANAL BRIDGE Value Engineering Alternative No. 3A: Widen the existing bridge for a 14 ft. flush median only. Advantages Medium construction cost Allows for left turn lane at 207th street Utilizes the remaining life of the existing bridge Disadvantages Less service life Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT Value Engineering Alternative No. 3B: Widen the existing bridge and replace the deck. Advantages Medium service life Eliminate the asphalt overlay Disadvantages High construction cost Longer construction time Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT 40

45 VI. EVALUATION PHASE ADVANTAGES AND DISADVANTAGES C. 183rd STREET INTERSECTION "As Proposed": Miami Gardens Drive on the existing centerline (R/W Alt. 3) Advantages Adds additional turn lanes Disadvantages High right of way impact to FPL transmission line Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT Value Engineering Alternative No. 4: Remove double left turn lanes on Miami Gardens Drive and relocate turns to 47th Avenue. Advantages Avoids the impact to the FPL transmission line Low right of way cost Lower construction cost Disadvantages Somewhat circuitous travel May be some traffic impact on Miami Gardens Drive Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT 41

46 VII. EVALUATION PHASE ADVANTAGES AND DISADVANTAGES C. 183rd STREET INTERSECTION Value Engineering Alternative No.5: Use a double crossover intersection. Advantages Better traffic operations May avoid FPL transmission line Disadvantages More business impacts More business relocations May be higher construction cost Conclusion DROP FROM FURTHER DEVELOPMENT Value Engineering Alternative No.6: Use a continuous flow intersection. Advantages Better traffic operations May avoid FPL transmission line Disadvantages More business impacts More business relocations May be higher construction cost Conclusion DROP FROM FURTHER DEVELOPMENT 42

47 VII. EVALUATION PHASE ADVANTAGES AND DISADVANTAGES C. 183rd STREET INTERSECTION Value Engineering Alternative No.7: Reduce widths on Miami Gardens Drive enough to avoid transmission line. Advantages Avoids impact to the FPL transmission line May be lower construction cost Disadvantages Eliminates right turn lanes Poor traffic operations Conclusion DROP FROM FURTHER DEVELOPMENT 43

48 VII. EVALUATION PHASE ADVANTAGES AND DISADVANTAGES D. SIDEWALKS "As Proposed": Six foot sidewalks behind the curb. Advantages Provides pedestrian access Wider sidewalk Disadvantages Sidewalk close to driving lanes Higher construction cost Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT Value Engineering Alternative No.8: Move sidewalks to right of way line and reduce to 5 ft. width. Advantages Sidewalks further away from driving lanes Lower construction cost Provides pedestrian access Disadvantages None apparent Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT 44

49 VII. EVALUATION PHASE ADVANTAGES AND DISADVANTAGES E. INTERSECTIONS "As Proposed": Signalized and unsignalized intersections. Advantages May be less right of way Disadvantages More delay at intersections Higher construction cost Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT Value Engineering Alternative No. 9A,B,C,&D: Use roundabout intersections. Advantages Eliminates traffic signals Lower construction cost Traffic calming Better access management Reduced delay at intersections Disadvantages May increase right of way cost Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT 45

50 VI. EVALUATION PHASE ADVANTAGES AND DISADVANTAGES F. LANDSCAPING "As Proposed": According to LRE, 5% of construction cost. Advantages Provide aesthetics Disadvantages More than required by FDOT Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT Value Engineering Alternative No. 10: Use the FDOT standard for landscaping (1.5%). Advantages Meets FDOT standards Less construction cost Disadvantages None apparent Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT 46

51 VI. EVALUATION PHASE G. CAROL CITY CANAL BRIDGE ADVANTAGES AND DISADVANTAGES "As Proposed": Remove existing bridge, remove existing 36 in. pipe and replace with a 48 in. pipe, and fill 50 ft. into the canal. Advantages Removes the existing bridge Replaces existing pipe with larger pipe Disadvantages Higher construction cost Larger pipe may not be required Requires filling a portion of the canal Longer construction time Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT Value Engineering Alternative No. 11: Construct new 36 in. pipe to junction with existing NW 195th Terrace pipe, do not remove existing bridge or the 36 in. pipe under the bridge and remove the existing 36 in. pipe where new roadway will be constructed. Advantages Lower construction cost Less construction time Minimal impacts to canal Disadvantages Existing bridge remains in place Conclusion CARRY FORWARD FOR FURTHER DEVELOPMENT 47

52 VII. EVALUATION PHASE MID POINT VALUE ENGINEERING ALTERNATIVE MEETING NW 47TH AVENUE PD&E October 23, 2013 NAME AFFILIATION PHONE William F. Ventry VE Group, L.L.C. 850/ Tom Hartley VE Group, L.L.C. 850/ Ronald Wishon VE Group, L.L.C. 850/ Jerry Potter VE Group, L.L.C. 850/ Gordon Burleson VE Group, L.L.C. 850/ Frank Ventry VE Group, L.L.C. 850/ Bao-Ying Wang FDOT 305/ Joy Carlo FDOT 305/ Fang Mei FDOT 305/ Stephanie Crawford Stantec 305/

53 VIII. DEVELOPMENT PHASE A. DRAINAGE AS PROPOSED VALUE ENGINEERING ALTERNATIVE NO. 1A VALUE ENGINEERING ALTERNATIVE NO. 1B B. SNAKE CREEK CANAL BRIDGE AS PROPOSED C. 183RD STREET BRIDGE VALUE ENGINEERING ALTERNATIVE NO. 2 D. SIDEWALKS E. INTERSECTIONS VALUE ENGINEERING ALTERNATIVE NO. 3A VALUE ENGINEERING ALTERNATIVE NO. 3B AS PROPOSED VALUE ENGINEERING ALTERNATIVE NO. 4 VALUE ENGINEERING ALTERNATIVE NO. 5 (DROPPED DURING THE EVALUATION PHASE) VALUE ENGINEERING ALTERNATIVE NO. 6 (DROPPED DURING THE EVALUATION PHASE) VALUE ENGINEERING ALTERNATIVE NO. 7 (DROPPED DURING THE EVALUATION PHASE) AS PROPOSED VALUE ENGINEERING ALTERNATIVE NO. 8 AS PROPOSED VALUE ENGINEERING ALTERNATIVE NO. 9A,B,C&D F. LANDSCAPING AS PROPOSED VALUE ENGINEERING ALTERNATIVE NO. 10 G. CAROL CITY CANAL BRIDGE AS PROPOSED VALUE ENGINEERING ALTERNATIVE NO

54 VIII. DEVELOPMENT PHASE A. DRAINAGE As Proposed It is proposed to use French Drains, Concrete Curb and Gutter and Concrete Sidewalk for the entire length of project. 50

55 VIII. DEVELOPMENT PHASE A. DRAINAGE Value Engineering Alternative No. 1A: Reduce the french drain with a swale at the Landfill. Value Engineering Alternative No. 1A proposes the elimination of Concrete Curb and Gutter, Concrete Sidewalk, French Drains and Curb Inlets from Station to Station on the east side of the project and construction of a 70 ft. x 1,600 ft. swale at the old landfill ( Surfside Dump ). This property is owned by Florida Auto Action of Orlando, Inc. There is a potential for contaminated soil in this area and a determination would need to be made on mitigation costs, etc. prior to implementation. 51

56 DRAINAGE VALUE ENGINEERING ALTERNATIVE NO. 1A COST COMPARISON SHEET DESCRIPTION UNITS UNIT COST PROP'D QTY. PROP'D COST V.E. QTY. V.E. COST Concrete Sidewalk SY $ , $591,360 14,696 $514, Concrete Curb and Gutter LF $ , $506,880 22,044 $440, Seeding Mulch SY $ $0.00 1,833 $1, " Reinforced Concrete Pipe LF $ $ $29, Mitered End Sections EA $ $ $6, French Drains - 24"/36" LF $ , $3,138,000 17,620 $2,643, Excavation CY $ $ ,100 $80, Clearing and Grubbing Acre $20, $581, $641, " RCP LF $ ,672 $75,240 1,772 $79, Curb Inlets EA $3, $399, $378, SUBTOTAL $5,292,280 $4,816,057 MOBILIZATION (THIS IS SUB+CONTIN. X % =) 10% $529,228 $481,606 MAINTENANCE OF TRAFFIC 10% $529,228 $481,606 ENGINEERING & CONTINGENCIES 0.0% $0 $0 Right of Way Acre $82, $0 3 $248,524 GRAND TOTAL $6,350,736 $6,027,792 POSSIBLE SAVINGS $322,944 NOTE: The cost comparison sheet does not include contamination remediation or permitting for either the As Proposed Alternative or the Value Engineering Alternative. 52

57 VIII. DEVELOPMENT PHASE A. DRAINAGE Value Engineering Alternative No. 1B: Use the area where right-of-way relocation will occur for swale and reduce french drain. Value Engineering Alternative No. 1B proposes the elimination of French Drains from Station to Station on the east side of the project and the construction of a 500 ft. x 70 ft. swale in this area. This is based on there being total acquisition of the seven properties shown in this area below. 53

58 DRAINAGE VALUE ENGINEERING ALTERNATIVE NO. 1B COST COMPARISON SHEET DESCRIPTION UNITS UNIT COST PROP'D QTY. PROP'D COST V.E. QTY. V.E. COST 18 " Reinforced Concrete Pipe LF $ $1, Curb Inlets EA $3, $399, $392, Mitered End Sections EA $ $ Excavation CY $ , $15, Clearing and Grubbing Acre $20, $581, $601,800 French Drains - 24"/36" LF $ $3,138,000 20, $3,033,000 SUBTOTAL $4,118,800 $4,044,265 MOBILIZATION (THIS IS SUB+CONTIN. X % =) 10.0% $411,880 $404,426 MAINTENANCE OF TRAFFIC 10.00% $411,880 $404,426 ENGINEERING & CONTINGENCIES 0.0% $0 $0 GRAND TOTAL $4,942,560 $4,853,118 POSSIBLE SAVINGS $89,442 54

59 VIII. DEVELOPMENT PHASE A. COST COMPARISON SHEET BACK UP CALCULATIONS As Proposed SIDEWALK 16,896 SY (from LRE) x $35/SY = $591,360 Curb and Gutter 25,344 LF (from LRE) x $20/LF = $506,880 French Drains 20,920 LF (from cost estimate from A.D.A. Engineering, Inc.) 20,920 LF x $150/LF (from A.D.A Engineering, Inc.) = $3,138,000 $150/LF was used (Note: drainage component has not been fully developed on this project) Clearing and Grubbing Acres (from LRE) x $20,000/Acre = $581, in. RCP 1672 LF (from LRE) x $45/LF = $75,240 Curb Inlets 114 EA (from LRE) x $3500/EA = $399,000 55

60 VIII. DEVELOPMENT PHASE A. COST COMPARISON SHEET BACK UP CALCULATIONS V. E. NO. 1A Use swale at old Surfside Dump Landfill SIDEWALK 3,300 ft x 6 ft / 9 = 2200 SY (less SY) 16, = 14,696 SY x $35/SY = $514,360 Curb and Gutter 3,300 LF less in swale on the east side of the road at the Surfside Dump property 25,344 LF 3300 LF = 22,044 LF x $35/SY = $440,880 Seeding Mulch 3,300 ft. x 5 ft. / 9 = 1833 SY 1,833 SY x $0.63/SY (from FDOT Annual Statewide Average = $1, in. Reinforced Concrete Pipe 640 LF (scaled from Google Earth drawing to bring water from west side to east side ---8 estimated) x $46.61/LF (from FDOT Annual Statewide Average) = $29, French Drains 3,300 LF less in Surfside Dump property 20,920 LF 3300 LF = 17,620 LF 17,620 LF x $150/LF (from A.D.A Engineering, Inc.) = $2,643,000 56

61 VIII. DEVELOPMENT PHASE A. COST COMPARISON SHEET BACK UP CALCULATIONS SIDEWALK V. E. NO. 1A Use swale at old Surfside Dump Landfill Mitered End Sections 8 EA (on 8 lines of 18 in. pipe to carry water from the west side to the east side of the road) 8 EA x $ (from FDOT Annual Statewide Average) = $ Excavation 2.5 acres (for swale area from A.D.A. Engineering, Inc.) 2.5 AC x 43,560SF/AC x 2.5 FT (deep) / 27 = 10, Use 10,100 CY 10,100 CY x $8/CY = $80,800 Right of Way (from R/W Summary Report from Miami-Dade County) Market Value of Surfside Dump property is $6,619,854 or $82,841.37/Acre Approximately 3 acres for swale = $248, Clearing and Grubbing 3 AC (additional Clearing and Grubbing = x $20,000/AC = $641, in. RCP 100 ft. additional length under County Line Road = 1772 LF x $45/LF (from LRE) = $79,740 Curb Inlets 114 EA 6 EA (deleting because of swale) = 108 EA 108 EA x $3500/EA = $378,000 57

62 VIII. DEVELOPMENT PHASE A. COST COMPARISON SHEET BACK UP CALCULATIONS SIDEWALK V. E. NO. 1B Use swale from Sta to Sta on the Right Side Curb Inlets 114 EA 2 EA (deleting because of swale) = 112 EA 112 EA x $3500/EA = $392,000 Mitered End Sections 1 EA (on 1 line of 18 in. pipe to carry water to the swale) 1 EA x $ (from FDOT Annual Statewide Average) = $ Excavation 0.8 acres (for swale area from A.D.A. Engineering, Inc.) 0.8 AC x 43,560SF/AC x 1.5 FT (deep) / 27 = 1936 CY 1,936 CY x $8/CY = $15,488 Clearing and Grubbing 1 AC (additional Clearing and Grubbing) = x $20,000/AC = $601,800 French Drains 700 LF less in swale from Sta to Sta on the right side 20,920 LF 700 LF = 20,220 LF 20,220 LF x $150/LF (from A.D.A Engineering, Inc.) = $3,033, in. Reinforced Concrete Pipe 25 LF (scaled from VE Typical Section) x $46.61/LF (from FDOT Annual Statewide Average) =$1,

63 VIII. DEVELOPMENT PHASE B. SNAKE CREEK CANAL BRIDGE As Proposed The as proposed is based on total replacement of the existing bridge at Snake Creek Canal with a new bridge. The new structure is proposed as three 43 ft.-6 in. spans with a total length of feet and a width out to out of 96 ft.-2 in.. It provides for two 6 ft.-8 in. sidewalks, two 5 ft.-4 in. shoulders, four 11 ft. lanes and a 26 ft. median. The bridge substructure consists of pile supported bents. The superstructure consists of a concrete deck supported by prestressed concrete beams, Florida FIB 36. The structure includes 20 feet approach slabs at each end. A median left turn lane and a right turn lane are included in the as proposed concept at the south end of the bridge. Plan View 59

64 VIII. DEVELOPMENT PHASE B. SNAKE CREEK CANAL BRIDGE Value Engineering Alternative No. 2: Eliminate the southbound turn lane at 207th Street Intersection and widen the existing bridge to four lanes only. The VE alternative is based on using the existing bridge and adding new structure to the east to achieve the width necessary to carry two 6 ft.-8 in. shoulders, two 5 ft.-4 in. shoulders and four 11 ft. traffic lanes with no median. The bridge width will be 70 ft.-2 in. out to out. The existing bridge is in good condition with a sufficiency rating of The existing bridge railings will be removed and reconstructed with railings that meet current criteria. The existing bridge cross slope is below current criteria and will be corrected by using a concrete buildup with the new deck widening. The widening will use prestressed concrete beams, Florida FIB 36 supported on pile bents. Eliminating the raised median and placing adjacent opposing lanes without separation is based on traffic evaluations that reflect that the SB left turn DHV traffic volumes to 207th Dr. do not justify a separate turn lane. Traffic information is provided in tables below: AM QUAD 2 RT THRU LT OUT QUAD OUT N RT 63 5 LT THRU THRU W 2040 E LT RT OUT QUAD 3 S QUAD OUT LT THRU RT PM QUAD 2 RT THRU LT OUT QUAD OUT N RT LT THRU THRU W 2040 E LT RT OUT QUAD 3 S QUAD OUT LT THRU RT

65 VIII. DEVELOPMENT PHASE B. SNAKE CREEK CANAL BRIDGE Value Engineering Alternative No. 2: Eliminate the southbound turn lane at 207th Street Intersection and widen the existing bridge to four lanes only. TRAFFIC ANALYSIS AM QUAD 2 RT THRU LT OUT QUAD OUT N RT 38 3 LT THRU THRU W 2012 E LT RT OUT QUAD 3 S QUAD OUT LT THRU RT PM QUAD 2 RT THRU LT OUT QUAD OUT N RT 8 6 LT THRU THRU W 2012 E LT RT OUT QUAD 3 S QUAD OUT LT THRU RT

66 VIII. DEVELOPMENT PHASE B. SNAKE CREEK CANAL BRIDGE Value Engineering Alternative No. 2: Eliminate the southbound turn lane at 207th Street Intersection and widen the existing bridge to four lanes only. 62

67 63

68 64

69 65

70 VII. DEVELOPMENT PHASE B. SNAKE CREEK CANAL BRIDGE Value Engineering Alternative No. 2: Eliminate the southbound turn lane at 207th Street Intersection and widen the existing bridge to four lanes only. Plan View Cross Section 66

71 Snake Creek Canal Bridge VALUE ENGINEERING ALTERNATIVE NO. 2 COST COMPARISON SHEET DESCRIPTION UNITS UNIT COST PROP'D QTY. PROP'D COST V.E. QTY. V.E. COST REMOVAL OF EXISTING STRUCTURE CONC CLASS II, SUPERSTRUCTURE C0NC CLASS II, APPROACH SLAB CONC CLASS 1V, SUBSTRUCTURE BRIDGE DECK GROOVING & PLANING REINF STEEL- SUPERSTRUCTURE REINF STEEL- SUBSTRUCTURE REINF STEEL- APPROACH SLAB PRESTRESSED BEAMS, FLORIDA I BEAMS, FIB CONCRETE TRAFFIC RAILING- BRIDGE, 32" VERTICAL FACE SF $ ,630 $343,350 4,637 $208,665 CY $ $238, $159,958 CY $ $71, $38,650 CY $1, $216, $138,615 SY $ ,301 $14,493 1,036 $11,538 LB $ ,338 $69,987 46,436 $39,471 LB $ ,215 $21,067 15,486 $13,473 LB $ ,240 $29,240 14,687 $14,687 LF $ ,305 $228, $68,513 LF $ $34, $34,441 SUBTOTAL $1,266,905 $728,010 MOBILIZATION (THIS IS SUB+CONTIN. X % =) MAINTENANCE OF TRAFFIC 10% $126,691 $72,801 10% $126,691 $72,801 CONTINGENCIES 0.0% $0 $0 GRAND TOTAL $1,520,286 $873,612 POSSIBLE SAVINGS: $646,674 67

72 SNAKE CREEK CANAL BRIDGE COMPARISON 75 Year Life Cycle Cost Comparison Enter the Interest Rate = 5% AS PROPOSED VE ALTERNATIVE 2 Year Present Total Worth Total Worth 0 INITIAL COST $1,520,286 -$1,520,286 $873,612 -$873, BRIDGE CONSTRUCTION $0 $646,674 -$149, SALVAGE $0 $0 $258,670 -$6,661 -$1,520,286 -$1,029,899 LCC SAVINGS $490,387 68

73 VIII. DEVELOPMENT PHASE B. SNAKE CREEK CANAL BRIDGE Value Engineering Alternative No. 3A: Widen the existing bridge for a 14 ft. flush median only. The VE alternative is based on using the existing bridge and adding new structure to the east to achieve the width necessary to carry two 6 ft.-8 in. shoulders, two 5 ft.- 4 in. shoulders and four11 ft. traffic lanes with a 14 ft. flush median. The bridge width will be 84 ft.-2 in. out to out. The existing bridge is in good condition with a sufficiency rating of The existing bridge railings will be removed and reconstructed with railings that meet current criteria. The existing bridge cross slope is below current criteria and will be corrected by using a concrete buildup with the new deck widening. The widening will use prestressed concrete beams, Florida FIB 36 supported on pile bents. Plan View Cross Section 69

74 Snake Creek Canal Bridge VALUE ENGINEERING ALTERNATIVE NO. 3A COST COMPARISON SHEET DESCRIPTION REMOVAL OF EXISTING STRUCTURE CONC CLASS II, SUPERSTRUCTURE C0NC CLASS II, APPROACHSLAB CONC CLASS 1V, SUBSTRUCTURE BRIDGE DECK GROOVING & PLANING REINF STEEL- SUPERSTRUCTURE REINF STEEL- SUBSTRUCTURE REINF STEEL- APPROACH SLAB PRESTRESSED BEAMS, FLORIDA I BEAMS, FIB CONCRETE TRAFFIC RAILING-BRIDGE, 32 " VERTICAL FACE UNITS UNIT COST PROP'D QTY. PROP'D COST V.E. QTY. V.E. COST SF $ ,630 $343,350 3,069 $138,105 CY $ $238, $188,076 CY $ $71, $42,340 CY $1, $216, $221,550 SY $ ,301 $14,493 1,301 $14,493 LB $ ,338 $69,987 50,880 $43,248 LB $ ,215 $21,067 24,751 $21,533 LB $ ,240 $29,240 16,089 $16,089 LF $ ,305 $228, $114,188 LF $ $34, $34,441 SUBTOTAL $1,266,905 $834,062 MOBILIZATION (THIS IS SUB+CONTIN. X % =) MAINTENANCE OF TRAFFIC 10% $126,691 $83, % $126,691 $83,406 CONTINGENCIES 0.0% $0 $0 GRAND TOTAL $1,520,286 $1,000,875 POSSIBLE SAVINGS: $519,411 70

75 SNAKE CREEK CANAL BRIDGE COMPARISON 75 Year Life Cycle Cost Comparison Enter the Interest Rate = 5% AS PROPOSED VE ALTERNATIVE 3A Year Present Total Worth Total Worth 0 INITIAL COST $1,520,286 -$1,520,286 $1,000,875 -$1,000, BRIDGE CONSTRUCTION $0 $519,411 -$120, SALVAGE $0 $0 $207,764 -$5,350 -$1,520,286 -$1,126,405 LCC SAVINGS $393,881 71

76 VIII. DEVELOPMENT PHASE B. SNAKE CREEK CANAL BRIDGE Value Engineering Alternative No. 3B: Widen the existing bridge and replace the deck. The VE alternative is based on using the existing bridge and adding new structure to the east to achieve the width necessary to carry two 1 ft.-1 in. vertical traffic railings, two 6 ft.-8 in. shoulders, two 5 ft.- 4 in. shoulders and four 11feet traffic lanes with a 14 ft. median. The bridge width will be 84 ft.-2 in. out to out. The existing bridge is in good condition with a sufficiency rating of The existing bridge cross slope is below current criteria. The existing bridge deck and railings will be removed and reconstructed with railings that meet current criteria. A new deck will be added to the existing bridge with a cross slope that meets current criteria. The revised cross slope can be achieved with a variable haunch over each beam. The widening will use prestressed concrete beams, Florida FIB 36 supported on pile bents. Plan View Cross Section 72

77 Snake Creek Canal Bridge VALUE ENGINEERING ALTERNATIVE NO. 3B COST COMPARISON SHEET DESCRIPTION UNITS UNIT COST PROP'D QTY. PROP'D COST V.E. QTY. V.E. COST REMOVAL OF EXISTING STRUCTURE CONC CLASS II, SUPERSTRUCTURE C0NC CLASS II, APPROACHSLAB CONC CLASS 1V, SUBSTRUCTURE BRIDGE DECK GROOVING & PLANING REINF STEEL- SUPERSTRUCTURE REINF STEEL- SUBSTRUCTURE REINF STEEL- APPROACH SLAB PRESTRESSED BEAMS, FLORIDA I BEAMS, FIB CONCRETE TRAFFIC RAILING- BRIDGE, 32 " VERTICAL FACE SF $ ,630 $343,350 7,630 $343,350 CY $ $238, $217,097 CY $ $71, $62,350 CY $1, $216, $221,550 SY $ ,301 $14,493 1,301 $14,493 LB $ ,338 $69,987 74,958 $63,714 LB $ ,215 $21,067 24,751 $21,533 LB $ ,240 $29,240 23,693 $23,693 LF $ ,305 $228, $114,188 LF $ $34, $34,441 SUBTOTAL $1,266,905 $1,116,409 MOBILIZATION (THIS IS SUB+CONTIN. X % =) MAINTENANCE OF TRAFFIC 10.0% $126,691 $111, % $126,691 $111,641 CONTINGENCIES 0.0% $0 $0 GRAND TOTAL $1,520,286 $1,339,691 POSSIBLE SAVINGS: $180,595 73

78 SNAKE CREEK CANAL BRIDGE COMPARISON 75 Year Life Cycle Cost Comparison Enter the Interest Rate = 5% Year AS PROPOSED Present VE ALTERNATIVE 3B Total Worth Total Worth 0 INITIAL COST $1,520,286 -$1,520,286 $1,339,691 -$1,339, BRIDGE CONSTRUCTION $0 $180,595 -$41, SALVAGE $0 $0 $72,238 -$1,860 -$1,520,286 -$1,383,337 LCC SAVINGS $136,949 74

79 VIII. DEVELOPMENT PHASE C. 183rd STREET INTERSECTION As Proposed SR-860/NW 183rd/Miami Gardens Drive and SR-847/NW 47th Ave intersection "As Proposed" improvements include: 1. dual left turn lanes in each direction (adds a left turn in each direction) 2. adding a right turn lane in each direction 3. adding travel lanes and bike lanes to NW 47th Ave north of the intersection AS PROPOSED ALTERNATIVE #3 NW MIAMI GARDENS DRIVE/NW 47TH AVE 75

80 VIII. DEVELOPMENT PHASE C. 183rd STREET INTERSECTION As Proposed These improvements will require additional Right of Way within a highly commercialized area. Another constraint within the intersection is the presence of Florida Power & Light (FPL) concrete Transition Line poles. Four Alternatives were developed by the consultant: 1. Shift Miami Gardens Drive to the north to avoid Right of Way Acquisition on the south and avoiding the FPL Transmission Lines. 2. Shift Miami Gardens Drive to the south to avoid whole takes and relocation of businesses. 3. Keep Miami Gardens Drive improvements centered on the existing alignment and impacting Right of Way on both sides of the roadway. 4. Keep Miami Gardens Drive improvements centered on the existing alignment on the west approach and offsetting the east approach slightly with a 2 deflection through the intersection. This will reduce slightly the impacts to Right of Way in the southeast quadrant. Analysis of the Long Range Estimates and the preliminary Right of Way Cost Estimates for each of the alternatives indicated Alternative #3 to be the lowest cost and the Preferred Alternative. Alternative #3 had the lowest construction cost estimate, but a slightly higher Right of Way Cost Estimate than Alternative #4, its closest competitor. It appears there will be relocation of the FPL Transmission Lines with all the alternatives. A basic traffic analysis with Highway Capacity Software indicated the traffic volumes and traffic capacity (V/C) ratios for the AM Peak and PM Peak are 1.15 and 1.35 respectively. 76

81 VIII. DEVELOPMENT PHASE C. 183rd STREET INTERSECTION Value Engineering Alternative No. 4: Remove double left turn lanes on Miami Gardens Drive and relocate turns to 47th Avenue. This Value Engineering Alternative will remove the left turn lanes from Miami Gardens Drive. Miami Gardens Drive approaches will consist of two through-lanes and two right-turn lanes. The left turn movements will be accommodated by dual right turns and roundabouts on NW 47 th Avenue north (at 185 th Terrace Street) and south (at NW 18tst Street) of the intersection as shown below. 77

82 VIII. DEVELOPMENT PHASE C. 183rd STREET INTERSECTION Value Engineering Alternative No. 4: Remove double left turn lanes on Miami Gardens Drive and relocate turns to 47th Avenue. VALUE ENGINEERING ALTERNATIVE MIAMI GARDENS DRIVE INTERSECTION ROUNDABOUT AT SW 181ST STREET VALUE ENGINEERING ALTERNATIVE ROUNDABOUT AT NW 185TH TERRACE/STREET 78

83 VIII. DEVELOPMENT PHASE C. 183rd STREET INTERSECTION Value Engineering Alternative No. 4: Remove double left turn lanes on Miami Gardens Drive and relocate turns to 47th Avenue. This intersection configuration will eliminate the left turn signal phase for Miami Gardens Drive. The time for that phase will be distributed to the other phases increasing their green time. A basic traffic analysis was completed and it appears the NW Miami Gardens Drive/NW 47th Ave intersection will operate slightly above capacity in the AM Peak period and at capacity in the PM Peak period. The table below compares the As Proposed Alternative and the Value Engineering Alternative traffic volumes and traffic capacity (V/C) ratios. Basic traffic analysis for the flanking roundabouts indicate they will also operate below capacity in the design year. If the Department pursues this VE Alternative additional modeling/analysis should be completed by the Department. ANALYSIS AM PEAK V/C PM PEAK V/C AS PROPOSED VALUE ENGINEERING ALTERNATIVE The median on Miami Gardens Drive will be reduced to approximately 9 ft. and there will be a slight jog in the through traffic alignment in order to keep the right turn lanes approaching NW 47th Ave. The Miami Gardens Drive typical will be: 7 ft. border width - curb & gutter and sidewalk Four 11 ft.- through lanes Two 11 ft. - right turn lane 9 ft. raised median All of this will be contained within the existing 100 ft. right of way and should have no impact on the FPL Transmission lines. 79

84 NW 47TH AVE/MIAMI GARDENS DRIVE INTERSECTION VALUE ENGINEERING ALTERNATIVE #4 COST COMPARISON SHEET DESCRIPTION UNITS UNIT COST PROP'D QTY. PROP'D COST V.E. QTY. V.E. COST OBG 9 SY $ $47, $27,471 WIDEN PAVEMENT SY $ $474, $479,640 RESURFACE PAVEMENT SY $ $189, $189,399 CURB & GUTTER LF $ $129, $129,634 SIDEWALK SY $ $75, $83,182 PERFORMANCE TURF SY $ $5, $7,731 DRAINAGE LS $74, $74, $74,879 SUBTOTAL $996,282 $991,937 MOBILIZATION (THIS IS SUB+CONTIN. X % =) MAINTENANCE OF TRAFFIC 10.0% $99,628 $99, % $99,628 $99,194 CONTINGENCIES 0.0% $0 $0 RIGHT OF WAY LS $15,019,500 - $467,157 GRAND TOTAL $16,215,038 $1,657,482 POSSIBLE SAVINGS: $14,557,557 80

85 VIII. DEVELOPMENT PHASE C. 183rd STREET INTERSECTION Value Engineering Alternative No. 4: Remove double left turn lanes on Miami Gardens Drive and relocate turns to 47th Avenue. TRAFFIC ANALYSIS: 81

86 VIII. DEVELOPMENT PHASE C. 183rd STREET INTERSECTION Value Engineering Alternative No. 4: Remove double left turn lanes on Miami Gardens Drive and relocate turns to 47th Avenue. TRAFFIC ANALYSIS: 82

87 VIII. DEVELOPMENT PHASE C. 183rd STREET INTERSECTION Value Engineering Alternative No. 4: Remove double left turn lanes on Miami Gardens Drive and relocate turns to 47th Avenue. TRAFFIC ANALYSIS: 83

88 VIII. DEVELOPMENT PHASE C. 183rd STREET INTERSECTION Value Engineering Alternative No. 4: Remove double left turn lanes on Miami Gardens Drive and relocate turns to 47th Avenue. TRAFFIC ANALYSIS: 84

89 VIII. DEVELOPMENT PHASE D. SIDEWALKS As Proposed It is proposed to use a 6 ft. Concrete Sidewalk adjacent to the Type F Curb and Gutter on each side of S.R. 847/NW 47 th Avenue for the entire length of the project. 85

90 VII. DEVELOPMENT PHASE D. SIDEWALKS Value Engineering Alternative No.8: Move sidewalks to right of way line and reduce to 5 ft. width. Value Engineering Alternative No. 8 utilizes a 5 ft. Concrete Sidewalk adjacent to the right of way line on each side of S.R. 847/NW 47 th Avenue for the entire length of the project. 86

91 SIDEWALKS VALUE ENGINEERING ALTERNATIVE NO. 8 COST COMPARISON SHEET DESCRIPTION UNITS UNIT COST PROP'D QTY. PROP'D COST V.E. QTY. V.E. COST Concrete Sidewalk SY $ , , , , Performance Turf SY $ , , , , SUBTOTAL $656,832 $566,720 MOBILIZATION (THIS IS SUB+CONTIN. X % =) 10% $65,683 $56,672 MAINTENANCE OF TRAFFIC 10% $65,683 $56,672 ENGINEERING & CONTINGENCIES 0.0% $0 $0 GRAND TOTAL $788,198 $680,064 POSSIBLE SAVINGS $108,134 87

92 VIII. DEVELOPMENT PHASE D. COST COMPARISON SHEET BACK UP CALCULATIONS Net Length = 2.4 miles = 12,672 ft. As Proposed 6 ft. Concrete Sidewalk 12,672 ft x 6 ft /9 = 8,448 SY per side x 2 = 16,896 SY (agrees with LRE for Alternative No. 2) 16,896 SY x $35/SY = $591,396 Performance Turf = 21,824 SY from LRE for Alternative No. 2 21,824 SY x $3/SY = $65,472 V. E. NO. 8 Shift to Right of Way Line and use 5 ft Sidewalks 12,672 ft x 5 ft/9 = 7040 SY per side x 2 = 14,080 SY 14,080 x $35/SY = $492,000 Performance Turf --- adding 1 ft to each side of the roadway 12,672 ft x 1 ft /9 = 1408 SY per side = x 2 = 2816 SY 21,824 SY SY = 24,640 SY 24,640 SY x $3/SY = $73,920 88

93 VII. DEVELOPMENT PHASE E. INTERSECTIONS As Proposed NW 47 th Ave within the project limits is a minor arterial and will be up graded to a 4-lane divided typical section with a 40 MPH Design Speed. The plans and cost estimates identify 5 intersection that will be signalized: 1. NW 183 rd Street/Miami Gardens Drive 2. NW 191 st Street 3. NW 195 th Street 4. NW 199 th Street 5. NW 215 th Street Each of these intersections will include left turn lanes and in some cases right turn lanes that may require acquisition of Right of Way. Additional work will be require along the cross streets to provide for horizontal and vertical adjustments to tie into the improvements on NW 47 th Ave. AS PROPOSED INTERSECTION IMPROVEMENTS AT NW 183 RD STREET Improvements to this intersection include adding additional left turn lanes and right turn lanes in each direction. 89

94 VIII. DEVELOPMENT PHASE E. INTERSECTIONS As Proposed AS PROPOSED INTERSECTION IMPROVEMENTS AT NW 185 TH STREET 90

95 VIII. DEVELOPMENT PHASE E. INTERSECTIONS As Proposed AS PROPOSED INTERSECTION IMPROVEMENTS AT NW 191 ST STREET Improvements to this intersection includes adding right and left turn lanes in each direction. 91

96 VIII. DEVELOPMENT PHASE E. INTERSECTIONS As Proposed AS PROPOSED INTERSECTION IMPROVEMENTS AT NW 195 TH STREET Improvements to this intersection includes left turn lanes in each direction and a right turn lane on north bound NW 47th Ave. 92

97 VIII. DEVELOPMENT PHASE E. INTERSECTIONS As Proposed AS PROPOSED INTERSECTION IMPROVEMENTS AT NW 199 TH STREET Improvements to this intersection include adding additional left turn lanes and right turn lanes in each direction. 93

98 VIII. DEVELOPMENT PHASE E. INTERSECTIONS As Proposed AS PROPOSED INTERSECTION IMPROVEMENTS AT NW 215 TH STREET Improvements to this un-signalized intersection includes signalization, north & south bound left turn lanes and north & west bound right turn lanes. 94

99 VIII. DEVELOPMENT PHASE E. INTERSECTIONS Value Engineering Alternative No. 9A, B, C& D: Use roundabout intersections. Most of the NW 47th Ave corridor is residential development. The existing speed limit is 40 MPH on the two lane/two way roadway through this corridor. The proposed speed limit will be 40 MPH for the proposed 4-lane divided roadway. The improvements to this corridor may encourage drivers to exceed the posted speed limit. Traffic calming measures through this residential area may be desired to reduce the risk of a pedestrian/bicyclist and a vehicle crash. In addition to the traffic calming characteristics, the roundabouts will also enhance access management by allowing the elimination of directional median crossovers and their associated conflicts. Traffic desiring to access property on the left side of the roadway will be able to drive to the next roundabout, take the fourth exit (u-turn) and make a right turn into their destination. Modern day roundabouts eliminate/postpone the need for a traffic signals, enhance traffic calming and reduce vehicle delay. Preliminary traffic analysis indicate that NW 183 rd Street/Miami Gardens Drive and NW 199 th Street intersection traffic exceeds the capacity of a two lane roundabout. NW 191 st Street, NW 195 th Street and NW 215 th Street traffic can be accommodated easily with a two-lane roundabout. If the Department is interested in this alternative, further traffic modeling should be completed. NW 185th Terrace/Street was added to provide traffic calming between the major intersections at Miami Gardens Drive and NW 199th Street. These roundabouts are developed individually: NW 185th Terrace/Street - Value Engineering Alternative #9A NW 191st Street - Value Engineering Alternative #9B NW 195th Street - Value Engineering Alternative #9C NW 215th Street - Value Engineering Alternative #9D Each of these roundabouts are designed with a 45 ft. inside radius and an outside radius of 75 ft. providing two 15 ft.-lanes of travel through the roundabout. This radius along with the 30 ft. + of pavement will accommodate the turning radius of most single unit and semi-trailer trucks. Additionally there is a bike lane at the outside radius adding another 5 ft. to the outside radius and along with the 12 ft. border width; the right of way to accommodate the roundabouts will be a 184 ft. diameter circle. 95

100 VIII. DEVELOPMENT PHASE E. INTERSECTIONS Value Engineering Alternative No. 9A, B, C& D: Use roundabout intersections. VALUE ENGINEERING ALTERNATIVE -- ROUNDABOUT INTERSECTIONS 96

101 VIII. DEVELOPMENT PHASE E. INTERSECTIONS Value Engineering Alternative No. 9A, B, C& D: Use roundabout intersections. VALUE ENGINEERING ALTERNATIVE #9A: VALUE ENGINEERING ALTERNATIVE -- ROUNDABOUT AT NW 185TH TERRACE & STREET 97

102 VIII. DEVELOPMENT PHASE E. INTERSECTIONS Value Engineering Alternative No. 9A, B, C& D: Use roundabout intersections. VALUE ENGINEERING ALTERNATIVE #9A: ROUNDABOUT AT NW 185TH TERRACE & STREET The offset un-signalized intersections at NW 185th Terrace and NW 185th Street are also converted to a roundabout with NW 47th Ave. This extends the traffic calming through the residential development between Miami Gardens Drive and NW 199th Street. It appears the additional Right of Way Acquisition will take the house in the northwest quadrant along with corner clips in the southeast and northeast quadrants. 98

103 NW 185TH TERRACE/STREET ROUNDABOUT VALUE ENGINEERING ALTERNATIVE 9A COST COMPARISON SHEET DESCRIPTION UNITS UNIT COST PROP'D QTY. PROP'D COST V.E. QTY. V.E. COST CLEARING & GRUBBING AC $20, $47, $51,896 REGULAR EXCAVATION CY $8.00 1, $12,363 1, $13,600 TYPE B STABILIZATION SY $ , $88,482 4, $79,824 OBG 9 SY $ , $88,482 4, $79,824 SUPERPAVE TN $ $72, $68,261 FC TN $ $44, $40,245 CURB & GUTTER TYPE E LF $ $2, $2,700 CURB & GUTTER TYPE F LF $ $18, $18,920 TRAF SEP CONC - TYPE LF $ , $32,670 - $0 SIDEWALK 4" SY $ $18, $22,074 SIDEWALK 6" SY $ $6, $6,608 PERFORMANCE TURF SY $ $1, $1,892 SUBTOTAL $434,333 $385,842 MOBILIZATION (THIS IS SUB+CONTIN. X % =) MAINTENANCE OF TRAFFIC 10% $43,433 $38,584 10% $43,433 $38,584 CONTINGENCIES 0.0% $0 $0 ADDITIONAL RIGHT OF WAY LF $134, $0 1.0 $134,347 GRAND TOTAL $521,199 $597,358 POSSIBLE ADDED COST: $76,159 99

104 VIII. DEVELOPMENT PHASE E. INTERSECTIONS Value Engineering Alternative No. 9A, B, C& D: Use roundabout intersections. VALUE ENGINEERING ALTERNATIVE #9A: TRAFFIC ANALYSIS: 100

105 VIII. DEVELOPMENT PHASE E. INTERSECTIONS Value Engineering Alternative No. 9A, B, C& D: Use roundabout intersections. VALUE ENGINEERING ALTERNATIVE #9A: TRAFFIC ANALYSIS 101

106 VIII. DEVELOPMENT PHASE E. INTERSECTIONS Value Engineering Alternative No. 9A, B, C& D: Use roundabout intersections. VALUE ENGINEERING ALTERNATIVE #9B: VALUE ENGINEERING ALTERNATIVE ROUNDABOUT AT NW 191ST STREET It appears the additional right of way acquisition will take the houses in the southeast and northeast quadrants along with a corner clips in the southwest and northwest quadrant. 102

107 NW 191ST STREET ROUNDABOUT VALUE ENGINEERING ALTERNATIVE 9B COST COMPARISON SHEET DESCRIPTION UNITS UNIT COST PROP'D QTY. PROP'D COST V.E. QTY. V.E. COST CLEARING & GRUBBING AC $20, $47, $50,434 REGULAR EXCAVATION CY $ $12, $13,600 TYPE B STABILIZATION SY $ $25, $22,383 OBG 9 SY $ $88, $77,330 SUPERPAVE TN $ $72, $53,164 FC TN $ $44, $64,979 CURB & GUTTER TYPE E LF $ $2, $2,700 CURB & GUTTER TYPE F LF $ $18, $18,920 TRAF SEP CONC - TYPE LF $ $32, $0 SIDEWALK 4" SY $ $18, $22,074 SIDEWALK 6" SY $ $6, $6,608 PERFORMANCE TURF SY $ $1, $1,892 SIGNAL SYSTEM LS $160, $160,000 - $0 SUBTOTAL $531,461 $334,083 MOBILIZATION (THIS IS SUB+CONTIN. X % =) MAINTENANCE OF TRAFFIC 10.0% $53,146 $33, % $53,146 $33,408 CONTINGENCIES 0.0% $0 $0 ADDITIONAL RIGHT OF WAY LS $399, $0 1.0 $399,800 GRAND TOTAL $637,753 $800,700 POSSIBLE ADDED COST: $162,

108 VIII. DEVELOPMENT PHASE E. INTERSECTIONS Value Engineering Alternative No. 9A, B, C& D: Use roundabout intersections. VALUE ENGINEERING ALTERNATIVE #9B: TRAFFIC ANALYSIS 104

109 VIII. DEVELOPMENT PHASE E. INTERSECTIONS Value Engineering Alternative No. 9A, B, C& D: Use roundabout intersections. VALUE ENGINEERING ALTERNATIVE #9B: TRAFFIC ANALYSIS 105

110 VIII. DEVELOPMENT PHASE E. INTERSECTIONS Value Engineering Alternative No. 9A, B, C& D: Use roundabout intersections. VALUE ENGINEERING ALTERNATIVE 9C: VALUE ENGINEERING ALTERNATIVE -- ROUNDABOUT AT NW 195TH STREET It appears the additional right of way acquisition will take the houses in the southwest, northwest and northeast quadrants along with a corner clip in the southeast quadrant. 106

111 NW 195TH STREET ROUNDABOUT VALUE ENGINEERING ALTERNATIVE 9C COST COMPARISON SHEET DESCRIPTION UNITS UNIT COST PROP'D QTY. PROP'D COST V.E. QTY. V.E. COST CLEARING & GRUBBING AC $20, $47, $49,799 REGULAR EXCAVATION CY $ $10,053 1,382.2 $11,058 TYPE B STABILIZATION SY $ $21,978 4,071.4 $21,212 OBG 9 SY $ $75,930 4,071.4 $73,286 SUPERPAVE TN $ $62, $50,384 FC TN $ $38, $36,948 CURB & GUTTER TYPE E LF $ $2, $2,700 CURB & GUTTER TYPE F LF $ $18, $18,920 TRAF SEP CONC - TYPE LF $ $32, $0 SIDEWALK 4" SY $ $18, $22,074 SIDEWALK 6" SY $ $6, $6,608 PERFORMANCE TURF SY $ $1, $1,892 SIGNAL SYSTEM LS $160, $160, $0 SUBTOTAL $496,282 $294,881 MOBILIZATION (THIS IS SUB+CONTIN. X % =) MAINTENANCE OF TRAFFIC 10% $49,628 $29,488 10% $49,628 $29,488 CONTINGENCIES 0.0% $0 $0 ADDITIONAL RIGHT OF WAY LS $404,259 - $0 1.0 $404,259 GRAND TOTAL $595,538 $758,116 POSSIBLE ADDED COST: $162,

112 VIII. DEVELOPMENT PHASE E. INTERSECTIONS Value Engineering Alternative No. 9A, B, C& D: Use roundabout intersections. VALUE ENGINEERING ALTERNATIVE #9C: 108

113 VIII. DEVELOPMENT PHASE E. INTERSECTIONS Value Engineering Alternative No. 9A, B, C& D: Use roundabout intersections. VALUE ENGINEERING ALTERNATIVE #9C: TRAFFIC ANALYSIS 109

114 VIII. DEVELOPMENT PHASE E. INTERSECTIONS Value Engineering Alternative No. 9A, B, C& D: Use roundabout intersections. VALUE ENGINEERING ALTERNATIVE 9D: VALUE ENGINEERING ALTERNATIVE -- ROUNDABOUT AT NW 215TH STREET This roundabout will postpone the need for a traffic signal. To avoid the canal to the west, this roundabout was offset to the east of the NW 47th Avenue alignment. Right of way acquisition will include property from the closed landfill in the southeast quadrant and the Florida Turnpike on the northeast quadrant. 110

115 NW 215TH STREET ROUNDABOUT VALUE ENGINEERING ALTERNATIVE 9D COST COMPARISON SHEET DESCRIPTION UNITS UNIT COST PROP'D QTY. PROP'D COST V.E. QTY. V.E. COST CLEARING & GRUBBING AC $20, $29, $35,760 REGULAR EXCAVATION CY $ $7,004 1,094.5 $8,756 TYPE B STABILIZATION SY $ $18,661 4,434.7 $23,105 OBG 9 SY $ $64,470 4,434.7 $79,824 SUPERPAVE TN $90.00 $ $53, $68,261 FC TN $ $ $32, $50,058 CURB & GUTTER TYPE E LF $ $2, $2,700 CURB & GUTTER TYPE F LF $ $11, $11,720 TRAF SEP CONC - TYPE LF $ $19, $0 SIDEWALK 4" SY $ $11, $13,674 SIDEWALK 6" SY $ $6, $6,608 PERFORMANCE TURF SY $ $ $1,172 SIGNAL SYSTEM LS $160, $160, $0 SUBTOTAL $418,282 $301,636 MOBILIZATION (THIS IS SUB+CONTIN. X % =) MAINTENANCE OF TRAFFIC 10% $41,828 $30,164 10% $41,828 $30,164 CONTINGENCIES 0.0% $0 $0 ADDITIONAL RIGHT OF WAY SF $2.00 1,700 $3,400 GRAND TOTAL $501,939 $365,363 POSSIBLE SAVINGS: $136,

116 VIII. DEVELOPMENT PHASE E. INTERSECTIONS Value Engineering Alternative No. 9A, B, C& D: Use roundabout intersections. VALUE ENGINEERING ALTERNATIVE #9D: TRAFFIC ANALYSIS 112

117 VIII. DEVELOPMENT PHASE E. INTERSECTIONS Value Engineering Alternative No. 9A, B, C& D: Use roundabout intersections. VALUE ENGINEERING ALTERNATIVE #9D: TRAFFIC ANALYSIS 113

118 VII. DEVELOPMENT PHASE F. LANDSCAPING As Proposed It is proposed to use Landscaping items at a rate of 5% of the total Construction Costs. Low maintenance landscaping items will be used. 114

119 VIII. DEVELOPMENT PHASE F. LANDSCAPING Value Engineering Alternative No. 10: Use the FDOT standard for landscaping. Value Engineering Alternative No. 10 utilizes Landscaping items in accordance with FDOT Engineering and Operations Memorandum 13-1 which is at a rate of 1.5% of the total construction costs. 115

120 LANDSCAPING VALUE ENGINEERING ALTERNATIVE NO. 10 COST COMPARISON SHEET DESCRIPTION UNITS UNIT COST PROP'D QTY. PROP'D COST V.E. QTY. V.E. COST LANDSCAPING LS 5% 15,046, , $0.00 LANDSCAPING (VE) LS 1.5% ,046, $225, SUBTOTAL $752,344 $225, MOBILIZATION (THIS IS SUB+CONTIN. X % =) 10% $75,234 $22, MAINTENANCE OF TRAFFIC 10.0% $75,234 $22, ENGINEERING & CONTINGENCIES 0.0% $0 $0.00 GRAND TOTAL $902,813 $270, POSSIBLE SAVINGS $631,

121 VIII. DEVELOPMENT PHASE F. COST COMPARISON SHEET BACK UP CALCULATIONS LANDSCAPING: As Proposed Total Construction Costs before contingencies = $15,046, $15,046, x 5% = $752, V. E. NO. 10 Use Landscaping items in accordance with Memo 13-1 $15,046, x 1.5% = $225,

122 VIII. DEVELOPMENT PHASE G. CAROL CITY CANAL BRIDGE As Proposed As shown below, the existing 36 in. pipe extends from the existing headwall in the canal, across NW 47th Avenue to a manhole in a private residential yard, then turns 90 degrees to NW 195th Terrace, then extends along NW 195th Terrace to an existing lake. Plan View Cross Section of Existing Canal 118

123 VIII. DEVELOPMENT PHASE G. CAROL CITY CANAL BRIDGE As Proposed It is proposed to remove the existing Carol City Canal Bridge and remove the existing 36 in. corrugated metal pipe and replace with a 48 in. pipe. In addition, it is proposed to fill in the Carol City Canal 50 ft. and extend the 48 in. pipe into the Canal. 119

124 VIII. DEVELOPMENT PHASE G. CAROL CITY CANAL BRIDGE Value Engineering Alternative No. 11: Construct new 36 in. pipe to junction with existing NW 195th Terrace pipe, do not remove existing bridge or the 36 in. pipe under the bridge and remove the existing 36 in. pipe where new roadway will be constructed. Value Engineering Alternative No. 11 does not remove the existing bridge. This alternative would remove the railings on each side of the bridge. A curb to match the roadway median would be constructed adjacent to the proposed new northbound lanes. On the outside, a sidewalk would be constructed, then fill with sod would be placed over to right of way line. The existing 36 in. CMP would be removed where the new northbound lanes will be constructed. The existing 36 in. pipe would not be removed under the bridge but would be plugged at the edge of the existing bridge and at the manhole in the private residence. A new 36 in. Pipe would be constructed from the existing headwall at the Carol City Canal to a manhole, then diagonally to another manhole, then across S.R. 847/NW 47 th Avenue and tie to the existing system along NW 195 th Terrace. The Carol City Canal would not be filled in 50 ft. with this VE Alternative. YELLOW --- As proposed GREEN --- VE Alternative No