2006 PRELIMINARY ENGINEERING STUDY

Transcription

1 2006 PRELIMINARY ENGINEERING STUDY KENNETH ROAD FROM 145TH STREET TO 151ST STREET PREPARED FOR: JULY 2011 PREPARED BY: 2400 PERSHING ROAD, SUITE 400 KANSAS CITY, MISSOURI TRANSYSTEMS PROJECT NO. P

2 Contents CONTENTS... I EXECUTIVE SUMMARY... 2 INTRODUCTION... 3 BASIC INFORMATION AND PROCEDURES... 3 EXISTING CONDITIONS... 4 Roadways... 4 Rights-of-Way... 4 Traffic Volumes... 4 Land Uses... 4 Vertical Profile... 4 Drainage... 4 Utilities... 5 Johnson County Wastewater... 5 Water District No. 1 of Johnson County... 5 Kansas City Power & Light... 5 Kansas Gas Service... 5 Time Warner Cable... 5 Magellan Pipeline Company... 5 Panhandle Eastern Pipeline Company... 5 MEDIAN BREAKS AND TURN LANE STORAGE REQUIREMENTS... 6 PRELIMINARY DESIGN... 6 Design Criteria - Roadway... 6 Design Criteria Drainage... 7 Typical Sections... 7 Right-of-way... 7 Proposed Horizontal Alignment... 7 Proposed Vertical Alignments... 7 Historical Considerations... 8 Threatened and Endangered Species... 8 Drainage... 8 Culverts... 8 Bridges... 9 Permitting... 9 Construction... 9 ESTIMATE OF COSTS APPENDIX A SUPPORTING DOCUMENTS APPENDIX C PRELIMINARY PLANS... SEPARATE VOLUME i

3 Executive Summary TranSystems Corporation completed this preliminary engineering study to establish a reasonable horizontal and vertical layout for Kenneth Road from near 145th Street to just south of 151st Street. The objective of this study was to complete a preliminary design that eliminated the at-grade crossing with the railroad, minimized impacts to existing development, to serve as a planning tool to guide future development, and to establish a right of way corridor to be preserved as development occurs over time. The findings of this study were determined in coordination with the City of Overland Park, Kansas. The major objectives of this study were as follows: Establish Design Criteria Establish design guidelines, typical roadway sections and right-of-way widths for Kenneth Road. Develop Preliminary Horizontal/Vertical Alignment Develop preliminary horizontal and vertical alignments for Kenneth Road. Determine Major Drainage Improvements Size facilities for major drainage crossings (bridges and culverts). Determine Total Project Cost Provide opinion of probable total project cost including construction, utility relocation, right-of-way, administration, legal and engineering costs based upon 2010 construction costs. The comprehensive solution to meet the objective identified is summarized in the subsequent sections of this report. Kenneth Road Overland Park s standard divided thoroughfare street section, centered on the section line, is used. 2

4 Introduction TranSystems entered into an agreement with the City of Overland Park, Kansas on December 4, Part of this agreement was to perform a Preliminary Engineering Study for Kenneth Road from approximately ¼ mile north of 151st Street to a point on 151st Street approximately ¼ mile west of Kenneth Road. The goal of the agreement was to establish a recommended horizontal and vertical layout for the free flow of Kenneth Road with 151st Street to the west. However, due to the recent annexation by the City of Overland Park, the project objective was altered to provide for a continuous north-south route on Kenneth Road separated from the existing railroad facilities. Additionally, rights-of-way will be established for preservation as development occurs along this corridor. The study also documents the following: Documentation of Existing Conditions Median Break Summary Preliminary Design Estimate of Construction Costs Each of these topics will be discussed in greater detail within this report. The Preliminary Plans are also included in Appendix C to graphically depict the proposed improvements. Basic Information and Procedures Topographic information was obtained from AIMS mapping, provided by the City of Overland Park. Property Ownerships were provided by the City of Overland Park. Utility companies were contacted via U.S. mail. Cross county gas line companies were contacted by . Development plans and existing platts along the corridor were provided by the City of Overland Park and the City of Leawood and included the following: Leabrooke, Third Plat Street Plan & Profile Mission Heights The Reserve at Ironhorse Blue River Main Wastewater Treatment Plant Copies of each are included in Appendix A Roadway plans prepared in 2005 by Phelps Engineering, Inc. for Kenneth Road from just north of the railroad to 144th Street were provided by the City of Leawood. Traffic volumes and median break information, including turn bay lengths were provided by the City of Overland Park. The Design Criteria was developed in accordance with the current City ordinance. Additionally, the criterion complies with the standards and practices of the Kansas Department of Transportation (KDOT) and the American Association of State Highway and Transportation Officials (AASHTO) publication entitled, A Policy on Geometric Design of Highways and Streets, dated The Blue Valley Watershed Study dated 2001, prepared by Camp, Dresser & McKee, Inc., including Addendum No. 1 from 2005, was provided by the City of Overland Park. Field Surveys were performed by TranSystems Corporation to verify type and size of culverts, and to ascertain stream flow line conditions upstream and downstream of the road crossing. Construction cost estimates were prepared in 2010 dollars. 3

5 Existing Conditions Roadways Kenneth Road is a north/south thoroughfare serving Overland Park and Leawood residents. It is a two-lane paved roadway with small graded shoulders and open ditches. Throughout the project area, Kenneth Road is located either fully in Overland Park, (primarily south of the UPRR) or jointly in Overland Park and Leawood (primarily north of the UPRR). Just north of 144th Street Kenneth Road is fully in Leawood. 151st Street is the only intersecting thoroughfare along Kenneth Road. However there are also tee-intersections on the west side of Kenneth at 144th, 145th and 148th Streets. Additionally, there are 3 driveways to houses on the west side of Kenneth, 4 field entrances (3 on the west and 1 on the east) and a driveway to the private softball fields located east of Kenneth just south of the railroad tracks. Rights-of-Way The existing right-of-way is generally 20 feet either side of the section line. North of 145th Street the right of way continues as 20 feet wide on the east side of the section line, but widens to 50 feet on the west side of the section line. The existing right-of-way is shown on the plan drawings in the Appendix. Traffic Volumes Traffic volumes were provided by the City of Overland Park and are Average Daily Traffic (ADT) for the year The following summarizes the traffic volumes: Kenneth Road 15,000 ADT Land Uses There are wide ranging land uses along the project corridor. The properties within Overland Park adjacent to Kenneth Road include primarily large tracts of land. The current zoning of the study corridor north of 151st Street is shown as IP-1 J, indicating Planned Light Industrial. The tracts adjacent to Kenneth Road and immediately south of 151st Street are zoned CP-3J, or Planned Commercial. However, the future land use maps published by the City of Overland Park indicate all of the land adjacent to the corridor is designated for Park use. Within the City of Leawood, lot sizes are significantly smaller and the land use becomes decidedly more suburban. This area includes AG, Agricultural zoning near the southern part of the city; SD-CR, Planned General Retail south of 148th Street; RP-3, Planned Cluster Attached (6,000 s.f. per dwelling) from 148th Street to 145th Street; and RP-4, Planned Apartment (4,000 s.f. per dwelling) north of 145th Street. Vertical Profile Nearly all of Kenneth Road achieves the 50 mph design speed when compared to AASHTO design criteria. The lone exception is near the north end of the project at 144th Street. In the AIMS mapping, there is a crest vertical curve at this location that does not meet AASHTO criteria. However, in 2004 the City of Leawood had plans developed that addressed this vertical curve. With those improvements the existing corridor fully meets the 50 mph design speed for vertical design. Drainage 151st and Kenneth is located very near the Blue River and is significantly impacted by the Blue River floodplain. Surface drainage is accomplished primarily via open ditches adjacent to Kenneth Road and 151st Street. Newer subdivisions north of the UPRR have enclosed storm sewer systems. However, these simply drain into the open ditch sections along Kenneth. There are four culvert crossings of Kenneth Road and 151st Street. Between 145th and 148th Streets, there is an existing 6 x 4 ft. Reinforced Concrete Box (RCB); just south of the UPRR there is a 25-ft single span bridge over Negro Creek; approximately 800 ft south, there is a six-feet wide concrete structure with no bottom spanning a tributary to Negro Creek. On 151st Street there is a triple 48-inch Corrugated Metal Pipe (CMP) structure along this same tributary to Negro Creek. Only one structure is usable for this project, and that is the existing bridge on Negro Creek. This could be utilized to provide access to the 4

6 Effertz ball fields on the east side of Kenneth. The remaining structures are not long enough to accommodate the proposed typical section with adequate clear zone. Utilities The major utilities in the study area are telephone, water, power, gas, sanitary sewers and fiber optic, along with natural gas transmission pipelines. These utility lines are shown on the plan drawings in the Appendix and are described as follows: Johnson County Wastewater Johnson County Wastewater has several facilities in the area. Along the west side of Kenneth just south of 145th Street there is approximately 240 ft. of 8-inch PVC sanitary sewer and approximately 140 ft. of 10- inch PVC sanitary sewer. These lines are parallel to Kenneth and just outside the right-of-way in the subdivision s utility easement. In addition, there is a 36-inch RCP trunk line on the north side of, and parallel to, the railroad tracks. This feeds to the Blue River Main Sewer District No. 1 treatment plant, and is located within its own easement, except where it crosses the existing right-of-way for Kenneth Road. Water District No. 1 of Johnson County WaterOne has several facilities in the project area. Along the west side of Kenneth Road, there is an 8-inch water main. This follows the roadway to the north side of the railroad tracks, where it veers southwesterly from the roadway, parallel to the tracks. After following the tracks for several hundred feet, the line makes a perpendicular crossing of the railroad and returns to the west side of Kenneth Road. This main goes throughout the project limits. An 8-inch main also branches off to the west at 148th Terrace to serve the local subdivision. On 151st Street there is an 8-inch main on the south side, west of Kenneth, and a 12-inch main on the south side east of Kenneth. All of these mains are outside the public right-of-way in their own easements. Kansas City Power & Light KCP&L has both overhead and underground facilities along throughout the corridor. Along the east side of Kenneth Road and the south side of 151st Street, KCP&L has a 3-phase, overhead, primary conductor. From this facility several local service lines feed residences, and subdivisions. These feed points are underground at 148th Terrace and 145th Street. The 3-phase, underground primary conductor, runs from the east side of Kenneth Road, into the developments on the west side, and continues generally parallel to the above noted streets. It appears that all of these facilities lie outside existing rights-of-way. Kansas Gas Service Kansas Gas Service has local service lines along 148th Terrace, and a 12-inch transmission line crossing 151st Street near the creek. However, neither of these facilities should be adversely impacted by the project. Time Warner Cable Time Warner Cable has various facilities within the project limits. These are primarily found on the KCP&L power poles that appear to be located outside existing public rights-of-way. Magellan Pipeline Company Magellan Pipeline Company confirmed that they have no facilities within this project area. Panhandle Eastern Pipeline Company Panhandle Eastern Pipeline Company has a 10-inch natural gas transmission line along the east side of Kenneth Road throughout the project limits. This pipeline is in its own easement and is approximately 80- years old. Should the gas line need to be relocated, work times would be limited to late spring or summer 5

7 when demand is low. Lead time is important as well. Panhandle Eastern indicated they would need about 1-year to plan for any relocation. In addition to these utilities, we contacted Conoco Phillips Pipeline, Enbridge Pipelines, AT&T and ATMOS Energy. Although multiple efforts were made, these entities did not respond. Median Breaks and Turn Lane Storage Requirements The City provided the following recommendations for proposed median break locations and full-width turn lane storage requirements (excluding tapers) on Kenneth Road: Location Northbound Southbound Eastbound Westbound 145th Street 150 N/A N/A N/A 148th Terrace N/A N/A 151st Street Preliminary Design The following design criteria, based on chapter of the Overland Park Municipal Code and on A Policy on the Geometric Deign of Highways and Streets, 2004 version, were used to develop the preliminary design. Design Criteria - Roadway Kenneth Road 151st Street Functional classification Thoroughfare Thoroughfare Design speed 50 mph 50 mph Posted speed 45mph 45mph Proposed right-of-way 80 Undivided/120 Divided 80 Undivided/120 Divided Proposed typical roadway section 12-2 Inside/13-0 Outside 12-2 Inside/13-0 Outside Proposed Median Width N/A Undivided/ 24-0 Divided N/A Undivided/ 24-0 Divided Proposed curb type Type D Inside/Type B Outside Type D Inside/Type B Outside Proposed sidewalk width 5 Both sides 5 both sides Proposed Normal Crown 2.08% (1/4 per Foot) 2.08% (1/4 per Foot) Minimum Radii 1200 Divided/600 Undivided* 1200 Divided/600 Undivided* Maximum grade 6% 6% Minimum grade 1% 1% Minimum stopping sight distance 400 ft 400ft Sag vertical curve (min. K) Crest vertical curve (min. K) Maximum Superelevation 4% 4% Superelevation Runoff 1:200 1:200 Side Slopes 4:1 4:1 6

8 Design Criteria Drainage The City of Overland Park Municipal has adopted APWA Section 5600, with amendments. The following design criteria is a summary of the applicable standards.. Method of estimating runoff Rational (less than 200 Acres) Computer modeling over 200 acres Storm sewer system design storm 10 year Cross-road culvert design storm 50 year Cross-road culvert design storm (low point) 100 year Ditches 25 year Allowable Spread 10.5 (6 intersections and crosswalks) Minimum pipe size 15 Type of pipe RCP Minimum pipe velocity 3 ft./sec. Maximum pipe velocity 20 ft./sec. Typical Sections The typical sections for the proposed roadways are shown in the Appendix. All thoroughfare sections have 12 thick asphaltic concrete pavement over a 6 aggregate base course. Page 2 of the plans in the Appendix shows the standard four-lane divided thoroughfare section recommended for Kenneth Road and 151st Street. The roadway width consists of a 13 outside lane and 12-2 inside lane. Five-foot sidewalks are located 1-foot inside the proposed right-of-way line on both sides of the street. Right-of-way Right-of-way requirements are indicated on the plan drawings in the Appendix and on the typical section on page 2 of the plans in the Appendix. All thoroughfare sections will include a 120 right-of-way corridor, lying 60 on either side of centerline. Permanent drainage easements will be necessary at the ends of the crossroad drainage structures. Temporary construction easements will be necessary along most properties adjacent to construction. Additional permanent utility easements will be necessary to accommodate utility relocations, particularly for the Panhandle Eastern Pipeline facility and the Johnson County Water District No. 1 facilities near the railroad tracks on Kenneth. The final locations of the proposed utility easements should be determined during the project design phase when more accurate utility information is available. Proposed Horizontal Alignment The roadway is proposed to be a standard thoroughfare centered on the existing section line from 145th Street to 151st Street. Proposed Vertical Alignments The minimum design criteria for thoroughfare type roadways is established in the City of Overland Park Municipal Code and the 2004 edition of A Policy on Geometric Design of Highways and Streets published by the American Association of State Highway and Transportation Officials. The two main design issues when developing the vertical alignments for these roadways are Stopping Sight Distance (S.S.D.) of a crest vertical curve and the K value of a sag vertical curve. The requirements for this project are shown in the Design Criteria section of this report. An exception to the Design Criteria has been incorporated for the bridges over the Union Pacific Railroad tracks. To achieve the desired 50 mph design speed, and limit the profile to 6% maximum grade, the project would have required substantial reconstruction of 148th Street and the planned commercial 7

9 development area. This would also have shifted the high point further to the south, and elevated the intersection with 151st Street significantly. Therefore, the design speed was reduced to 40 mph, which allows the clearance to be achieved over the railroad tracks, without significantly impacting 148th Street or 151st Street. Additionally, two profiles were established on 151st Street west of Kenneth. The primary profile shown on the plans would tie into the railroad tracks west of Kenneth with an at-grade crossing. The second profile, shown as a dashed line and labeled as Future Profile, would enable a grade-separated crossing of the railroad tracks. As shown on Kenneth Road, the crown of the roadway must be rotated to a two-percent reverse crown to help achieve the grade-separated crossing. This is accommodated with profiles on 151st Street. Historical Considerations The Kansas State Historical Society (KSHS) will have to be contacted to determine if there are known archaeological sites or historic structures within the project area and what impact, if any, the improvements would have on any properties listed on the National Register of Historic Places. Due to the close proximity of the project to several waterways, the likelihood of significant historic or cultural sites tends to be greater. Therefore, this should be explored further in the early stages of the design process. Threatened and Endangered Species The United States Department of the Interior, Fish and Wildlife Service should be contacted as well to ascertain the presence of any threatened or endangered species in or near the project area. Since the project is bridging a flood plain area, the likelihood of threatened or endangered species increases. This contact should be initiated early in the design process. Drainage New drainage structures beneath Kenneth Road and 151st Street will be reinforced concrete boxes. The major culvert crossings were sized for a 100-year storm. The analysis was performed using Bentley Pondpack (Version 10.1) incorporating the Soil Conservation Service (SCS) TR-55 methodology. A one foot freeboard elevation was utilized in the culvert design. Locations of structures are shown on the plan and profile sheets in the Appendix. The Blue River Watershed is immediately downstream of the culverts. However, the sizing of the culverts was done assuming low water conditions on the Blue River and a localized 100-year storm. Since the a large portion of the area is inundated in the 100-year Blue River event, the culverts would be serving as equalizers within the flood plain during that event, rather than conveying runoff through the project. During final design it may be necessary to design a storm system that utilizes area inlets to collect the water at the toes of slope where positive drainage cannot be achieved. Temporary interceptor ditches should be utilized in order to keep large areas of off-site drainage from entering the roadway. The temporary interceptor ditches will only be used where development has not yet occurred. Culverts There is one culvert crossing on 151st Street west of Kenneth Road, and two crossings on Kenneth Road. The data used in analyzing the storm drainage flowing from the adjacent drainage areas is shown in the table below: Structure Location Size Area (acres) CN Value Time of Conc. (min) i 100 (in/hr) Q 100 (cfs) Plugged WSE st Sta x 6 RCB Kenneth - Sta x 6 RCB Kenneth - Sta x 5 RCB It should be noted that the discharge reported through the culvert at Kenneth Road station (404 cfs) is less than the discharge through the upstream culvert at 151st Street station (431 cfs) due to attenuation 8

10 of the hydrograph. This is caused by the proposed roadway culverts operating similar to detention pond outlets. The plugged water surface elevations were determined by assuming each individual proposed culvert is completely blocked (one at a time) so the structure has no hydraulic capacity. Water storage areas and volumes were estimated from AIMS mapping data and project surveys. The proposed roadway profiles were used to simulate weir flow in the plugged culvert analysis. Pondpack output for each scenario is available in the appendix of this report. Bridges Two bridges are required on Kenneth Road to cross over the Union Pacific Railroad and Negro Creek. The bridge length was set based on spanning the Blue River floodway, but also placed the bridge piers in an arrangement that spans the railroad right-of-way. This allows the project to proceed with minimal impact to the railroad operation or the future expansion of their facilities. To achieve these objectives, the bridge needs to be 1,225-ft in length, with spans of The preliminary design was based on a parabolic haunch welded plate girder with the end of haunch set at the 30% point of the spans. The maximum web depth used was 120-inches (84-inches min.) and the maximum flange thickness was 3-inches based. These parameters were based on a conversation with a local steel fabricator. A deeper web could be used, but that would eliminate several fabricators from being able to supply materials for the project. During final design, consideration should also be given to the length of structural element that could be handled in the fabricator s shop which is generally around 150-ft. Because of this restriction, as well as the ability to transport long loads to the site, field splices will likely be required in higher stress zones than would normally be desirable. Additionally, the 400-ft span is near the maximum limit for deflection requirements, and is near the maximum web depth and flange plate thickness available from most fabricators. Another span arrangement of was evaluated and such an arrangement would give a more reasonable bridge design but would encroach into the Union Pacific Railroad right-of-way. This arrangement would still allow the piers to be located beyond the 25-ft clear zone required by the railroad. Locations of bridge structures are shown on the plan and profile sheets in the Appendix. Permitting Permits will be required before beginning construction activities on this project. Due to the continually changing nature of permitting requirements, it is recommended the engineer review permitting requirements during the project s preliminary design phase. The following permits may be required and should be investigated: 404 Permit DWR Permit National Pollution Discharge Elimination System (NPDES) Permit City Land Disturbance Permit City Flood Plain Permit FEMA Other Construction Construction phasing and maintenance of traffic during construction are not specifically addressed in this study. However, these items must be considered during the preliminary and final design. Construction of two separate bridges on Kenneth may allow for one bridge to be constructed while traffic is maintained on the existing roadway. However, temporary shoring needed for construction the approach embankment, may prove to be cost prohibitive. It will be vital to plan for constructability early in the design process. Estimated project costs are included in the following section. 9

11 Estimate of Costs Approximate quantities have been calculated to determine the approximate project construction cost, including potential utility relocations. The total project cost also includes anticipated costs for design engineering, City administration costs, right-of-way costs, and costs for construction phase services. SUMMARY OF PRELIMINARY COSTS 151ST STREET & KENNETH ROAD INTERSECTION City of Overland Park, Kansas G:\KC06\0429\CostEstimate\151st Street \[151st Street & Kenneth Road Cost Estimate.xls]RW 6/22/2011 Item Totals 1. Construction Costs $ 17,227, Engineering/Survey $ 861, % of Construction 3. Inspection $ 1,808, % of Construction 4. Material Testing $ 258, % of Construction 5. Project Administration $ 344, % of Construction 6. Legal Publications, Printing, Misc. $ 86, % of Construction 7. Ownership Certificates/ Title Report $ 8, R/W Acquisition $ 2,146, Utility Relocations $ 1,462, TOTAL PROJECT COST $ 24,204,

12 PRELIMINARY R/W ACQUISITION COSTS 151ST STREET & KENNETH ROAD INTERSECTION City of Overland Park, Kansas G:\KC06\0429\CostEstimate\151st Street \[151st Street & Kenneth Road Cost Estimate.xls]RW 6/22/2011 Tract Easement type Approx (S.F.) Approx. Cost Right of Way $ 101, Temporary Construction 7601 $ 7, Drainage $ - Right of Way $ 118, Temporary Construction $ 20, Drainage 2500 $ 2, Right of Way 331 $ 1, Temporary Construction $ - Drainage $ - Right of Way 3577 $ 14, Temporary Construction $ - Drainage $ - Right of Way $ 83, Temporary Construction 8953 $ 8, Drainage $ - Right of Way $ 117, Temporary Construction $ 13, Drainage $ - Right of Way 5911 $ 23, Temporary Construction 1082 $ 1, Drainage $ - Right of Way 3321 $ 13, Temporary Construction $ - Drainage $ - Right of Way 2071 $ 8, Temporary Construction 1329 $ 1, Drainage 1031 $ 1, Right of Way 1351 $ 5, Temporary Construction 1605 $ 1, Drainage 1243 $ 1, Right of Way 2118 $ 8, Temporary Construction 4337 $ 4, Drainage $ - Right of Way 2085 $ 8, Temporary Construction 4044 $ 4, Drainage $ - Right of Way 1949 $ 7, Temporary Construction 3800 $ 3, Drainage $ - 11

13 PRELIMINARY R/W ACQUISITION COSTS 151ST STREET & KENNETH ROAD INTERSECTION City of Overland Park, Kansas G:\KC06\0429\CostEstimate\151st Street \[151st Street & Kenneth Road Cost Estimate.xls]RW 6/22/2011 Tract Easement type Approx (S.F.) Approx. Cost Right of Way $ 52, Temporary Construction 8599 $ 8, Drainage $ - Right of Way $ 349, Temporary Construction $ 163, Drainage 7357 $ 7, Right of Way $ 40, Temporary Construction 8249 $ 8, Drainage 1188 $ 1, Right of Way $ 119, Temporary Construction $ 27, Drainage 2175 $ 2, Right of Way $ 42, Temporary Construction 3467 $ 3, Drainage $ - Right of Way $ 107, Temporary Construction $ 41, Drainage $ - Right of Way $ 328, Temporary Construction $ 66, Drainage 1384 $ 1, Right of Way 2017 $ 8, Temporary Construction $ - Drainage $ - Right of Way 9178 $ 36, Temporary Construction 2927 $ 2, Drainage $ - Right of Way $ 95, Temporary Construction $ 38, Drainage 956 $ Right of Way 1299 $ 5, Temporary Construction 3652 $ 3, Drainage $ - Right of Way 294 $ 1, Temporary Construction $ - Drainage $ - R/W Total $ 2,146,

14 PRELIMINARY UTILITY RELOCATION COSTS 151ST STREET & KENNETH ROAD INTERSECTION City of Overland Park, Kansas G:\KC06\0429\CostEstimate\151st Street\[151st Street & Kenneth Road Cost Estimate.xls]RW 6/22/2011 Item Quantity Units Unit Price Price 1. 8" Water Line Relocation 4550 L.F. $ $ 304, " Water Line Relocation 550 L.F. $ $ 55, " PVC Sanitary Sewer 450 L.F. $ $ 29, " RCP Sanitary Sewer 500 L.F. $ $ 112, " Gas Line (Panhandle Enastern) 4,100 L.S. $ $ 717, Subtotal $ 1,219, % Contingency $ 243, TOTAL $ 1,462,

15 PRELIMINARY CONSTRUCTION COSTS 151ST STREET & KENNETH ROAD INTERSECTION City of Overland Park, Kansas G:\KC06\0429\CostEstimate\151st Street\[151st Street & Kenneth Road Cost Estimate.xls]RW 6/22/2011 Item Quantity Units Unit Price Price 1. Mobilization 1 L.S. $ 782, $ 782, Clearing & Grubbing 1 L.S. $ 49, $ 49, Removal of Improvements 1 L.S. $ 61, $ 61, Contractor Construction Staking 1 L.S. $ 97, $ 97, Unclassified Excavation 11,367 C.Y. $ 5.00 $ 56, Compaction of Earthwork 169,894 C.Y. $ 2.00 $ 339, Erosion Control 1 L.S. $ 54, $ 54, Temporary Seeding 6.4 Acre $ 1, $ 6, " Fly Ash Treated Subgrade 43,215 S.Y. $ 5.00 $ 216, " Aggregate Base Course (OP Special) 43,215 S.Y. $ 7.00 $ 302, " Asphaltic Concrete Intermediate Course 18,082 Ton $ $ 1,446, " Asphaltic Concrete Surface Course 4,306 Ton $ $ 344, Concrete Approach Pavement 457 S.Y. $ $ 22, Curb and Gutter (Type B) 7,347 L.F. $ $ 146, Curb (Type D) 6,454 L.F. $ $ 116, Concrete Median Nose 10 Each $ 2, $ 20, Concrete Entrance Pavement 0 S.Y. $ $ " Concrete Sidewalk 3,781 S.Y. $ $ 151, Sidewalk Ramp 10 Each $ 1, $ 10, Underdrain 7,777 L.F. $ $ 139, Curb Inlet 36 Each $ 4, $ 162, Junction Box 2 Each $ 4, $ 9, Storm Sewer RCP 5,980 L.F. $ $ 418, RCP End Section 4 Each $ $ 2, RCB 6'x6' 200 L.F. $ $ 60, RCB 2-6'x6' 615 L.F. $ $ 319, Bridge 96,006 S.F. $ $ 10,560, Fence 5,107 L.F. $ 8.00 $ 40, Traffic Signal 1 Each $ 150, $ 150, Pavement Marking 1 L.S. $ 41, $ 41, Signing 1 L.S. $ 17, $ 17, Traffic Control 1 L.S. $ 61, $ 61, Street Lighting 1 L.S. $ 91, $ 91, Sodding 16,962 S.Y. $ 6.00 $ 101, Seeding 9.4 Acre $ 1, $ 9, Subtotal $ 16,407, % Contingency $ 820, TOTAL $ 17,227,

16 Appendix A Supporting Documents Leabrooke, Third Plat Mission Heights The Reserve at Ironhorse Blue River Main Wastewater Treatment Plant 15

17

18

19

20

21 Appendix B Hydrologic and Hydraulic Computations The analysis was performed using Bentley Pondpack (Version 10.1) 151 st Street and Kenneth Road Proposed Kenneth Road (Station 41+65) Proposed 151 st Street 100% Plugged Kenneth Road (Station 16+79) 100% Plugged Kenneth Road (Station 41+65) 100% Plugged 20

22 21

23 22

24 23

25 24

26 25

27 151 st and Kenneth Rd 151 st Plugged 26

28 27

29 28

30 29

31 30

32 31

33 32

34 33

35 Appendix C Preliminary Plans Preliminary plans are provided as a separately bound set of 11 x 17 plans. 34