Current Damage Assessment and Bridge Replacement

Transcription

1 Current Damage Assessment and Bridge Replacement Bella Vista Property Owner s Association Bella Vista Flood Study Project No Revision B 2/26/2018

2 Current Damage Assessment and Bridge Replacement prepared for Bella Vista Property Owner s Association Bella Vista Flood Study Bella Vista, Arkansas Project No Revision B 2/26/2018 prepared by Burns & McDonnell Engineering Company, Inc. Springdale, Arkansas COPYRIGHT 2018 BURNS & McDONNELL ENGINEERING COMPANY, INC.

3 Current Damage Assessment and Bridge Replacement Streambank Damage Assessment INDEX AND CERTIFICATION Bella Vista Property Owner s Association Current Damage Assessment and Bridge Replacement Project No Chapter Number Chapter Title Report Index Number of Pages 1.0 Streambank Damage Assessment Bridge Replacement 3 Appendix A Streambank Repair Cost 8 Appendix B Bridge Repair Cost 6 Appendix C Bridge Site Pictures 5 Attachment 1 Big R 1 Attachment 2 Contech 3 Attachment 3 Kingswood 18 Construction Cost 1 Bella Vista Property Owner s Association 1 Burns & McDonnell

4 Current Damage Assessment and Bridge Replacement Streambank Damage Assessment TABLE OF CONTENTS EXECUTIVE SUMMARY Page No. 1.0 STREAMBANK DAMAGE ASSESSMENT Task Description Cost Estimates Summary of Streambank Repair Cost Estimate BRIDGE REPLACEMENT Task Description Cost Estimates Summary of Bridge Replacement Costs...7 APPENDIX A STREAMBANK REPAIR COST APPENDIX B BRIDGE REPAIR COST APPENDIX C BRIDGE SITE PICTURES ATTACHMENT 1 BIG R ATTACHMENT 2 CONTECH ATTACHMENT 3 KINGSWOOD 18 CONSTRUCTION COSTS. Bella Vista Property Owner s Association 2 Burns & McDonnell

5 Current Damage Assessment and Bridge Replacement Streambank Damage Assessment 1.0 STREAMBANK DAMAGE ASSESSMENT 1.1 Task Description The Bella Vista Property Owners Association (POA) hired Burns & McDonnell to prepare a report with cost estimates to repair damage caused to the three golf courses by the recent flood events. The seven sites that were investigated and considered for repair are: 1. Site 1: Berksdale, East of Hwy. 71 Bridge 2. Site 2: Berksdale, Under Hwy. 71 Bridge 3. Site 3: Berksdale, West of Hwy. 71 Bridge 4. Site 4: Berksdale, East of the 18th Green 5. Site 5: Kingswood, Between the back tee of #18 and bridge from #17 green to the forward tee at #18 6. Site 6: Kingswood, West of the 4th Green 7. Site 7: Kingswood, Confluence with Lake Ann Tributary These seven sites are shown on the maps to the right. 1.2 Cost Estimates Burns and McDonnell performed a site visit at each location on October 9, During this visit, Burns & McDonnell staff met with a client representative. The client representative indicated that their preferred method of streambank protection is riprap due to its affordability and ease of construction Therefore, the estimates reflect riprap as the preferred alternative. An additional alternative is also included for the use of gabion baskets in locations where aesthetics is a concern. The cost estimates provided herein are based on previous streambank stabilization project information provided for use by the POA, Streambank and Shoreline Protection Manual, the Arkansas Department of Transportation (ArDOT) bid tabulations, and general knowledge and experience. The development of the cost estimates assumes that one site will be repaired at a time. Cost savings may be achieved if sites are repaired in groups. Additionally, the estimates do not include permitting costs for the Federal Emergency Management Agency (FEMA). FEMA approvals may not be necessary depending on the final approach taken to re-establish a stable streambank. The following page provides summary costs for the stabilization of each site. The detailed cost breakdown for each site is included in Appendix A. Bella Vista Property Owner s Association 3 Burns & McDonnell

6 Current Damage Assessment and Bridge Replacement Streambank Damage Assessment Summary of Streambank Repair Cost Estimate STREAMBANK REPAIR COST ESTIMATE LOCATION Site 1 Site 2 Site 3 Site 4 Site 5 Site 6 Site 7 ENGINEERING CONSTRUCTION TOTAL SITE COST $43,200 $43,200 $43,200 $52,000 $57,000 $43,200 $43,200 $33,540 $52,279 $139,274 $216,522 $267,786 $63,836 $64,560 $76,740 $95,479 $182,474 $268,522 $324,786 $107,036 $107,760 TOTAL STREAMBANK REPAIR COST $1,162,798 Bella Vista Property Owner s Association 4 Burns & McDonnell

7 Current Damage Assessment and Bridge Replacement Bridge Replacement 2.1 Task Description 2.0 BRIDGE REPLACEMENT Burns and McDonnell was also tasked with preparing cost estimates to replace five precast concrete beam bridges with steel arch truss bridges similar to the structure installed near Kingswood Hole #18. The five structures included in this analysis are listed and shown below. The approximate locations are shown in the figures below. 1. Berksdale Golf Course, Bridge Site 1 2. Berksdale Golf Course, Bridge Site 2 3. Berksdale Golf Course, Bridge Site 3 4. Berksdale Golf Course, Bridge Site 4 5. Kingswood Golf Course, Bridge Site Cost Estimates Burns and McDonnell performed a site visit at each location on October 9, At that time, bridges at Site 1 and Site 2 were both closed. Each of the five structures were multiple spans comprised of precast concrete beams supported on steel H-pile intermediate bents. Replacement structures are recommended to be single span weathering steel prefabricated arch truss bridges with concrete decks supported on steel H- pile concrete abutments with straight turnback wings. Each bridge should be designed to carry emergency vehicles and have a 12-foot minimum roadway width. The replacement structures should be designed to minimize maintenance requirements. Single span bridges will eliminate the build-up of drift debris against the bridge piers and weathering steel will avoid the need for regular painting. Using abutments with turnback wings will provide a high degree of bridge end protection during flood events. Bella Vista Property Owner s Association 5 Burns & McDonnell

8 Current Damage Assessment and Bridge Replacement Bridge Replacement Cost estimates to remove and replace the above listed bridge structures are provided herein. These estimates are based on costs associated with previous bridge replacements by the POA, prefabricated truss manufactures cost estimate to fabricate and deliver the new truss, ArDOT bid tabs and general knowledge and experience. Similar to the stream bank stabilization estimates, these cost estimates assume that one bridge will be replaced at a time. Cost savings may be achieved if bridges are replaced in groups. Additionally, the estimates do not include permitting costs with state or federal agencies such as the U.S. Army Corps of Engineers or Federal Emergency Management Agency (FEMA). Kingswood 18 Constructed in 2010 for a cost of $206,000. The Site 5 estimate is the only location that includes costs for a CLOMR/LOMR approval from FEMA. This is because a new alignment is likely, and that process would be required for the work to be done. The new alignment will eliminate the sharp curve in the trail on the west end to allow the passage of emergency vehicles. The CLOMR/LOMR permitting process can increase costs of up to $35,000 to remap the floodplain. Options for avoiding the need for a CLOMR/LOMR can be explored for the other locations during the design and planning for construction. These options could include showing a norise during the floodplain modeling or closing the existing bridge and placing the new bridge in the same location as the existing. Specific to Site 2, the team was asked to consider the removal and abandonment of this bridge. This cost is estimated to be roughly $45,000. A summary of the bridge replacement costs is provided on the following page, and the detailed cost breakdown can be found in Appendix B. Bella Vista Property Owner s Association 6 Burns & McDonnell

9 Current Damage Assessment and Bridge Replacement Bridge Replacement Summary of Bridge Replacement Costs BRIDGE REPLACEMENT ESTIMATE BRIDGE Bridge Site 1 Bridge Site 2 Bridge Site 3 Bridge Site 4 Bridge Site 5 ENGINEERING CONSTRUCTION TOTAL BRIDGE COST $140,640 $140,640 $140,640 $140,640 $182,640 $265,536 $265,536 $236,376 $285,024 $242,472 $406,176 $406,176 $377,016 $425,664 $425,112 TOTAL BRIDGE REPLACMENT COST $2,040,144 Bella Vista Property Owner s Association 7 Burns & McDonnell

10 APPENDIX A STREAMBANK REPAIR COST

11 Client: Bella Vista POA Project: Streambank Repair Cost Estimate Made By: RWC Date: Checked By: Date: SITE 1: BERKSDALE, EAST OF HWY. 71 BRIDGE Average Height = 8 Ft. Length = 135 Ft. Side Slope = 2:1 ENGINEERING ITEM COST Survey $ 4,200 Environmental Permitting $ 7,000 Roadway Design $ 20,000 Bidding Phase Services $ 2,000 Construction Administration $ 10,000 SUBTOTAL $ 43,200 CONTINGENCY 0% 0 TOTAL ENGINEERING $ 43,200 CONSTRUCTION UNIT ITEM QUANTITY UNIT PRICE COST Compacted Embankment 160 Cu. Yd. $13 $ 2,080 Unclassified Excavation 160 Cu. Yd. $11 $ 1,760 Mobilization 1 LS $4000 $ 4,000 Erosion Control 1 LS $1160 $ 1,160 Filter Blanket 336 Sq. Yd. $5 $ 1,680 Riprap - Majority greater than 90 lbs 157 Cu. Yd. $110 $ 17,270 SUBTOTAL $ 27,950 CONTINGENCY 20% 5,590 TOTAL CONSTRUCTION $ 33,540 TOTAL STREAMBANK REPAIR SITE COST $ 76,740 Gabions - Cost Increase if Used 120 Cu. Yd. $325 $ 20,050 Estimated protection cost does not include hydraulic permitting if a CLOMR/LOMR process is required. If the local floodplain administrator requires a submittal it would increase cost up to $35,000. Page 1 of 8

12 Client: Bella Vista POA Project: Streambank Repair Cost Estimate Made By: RWC Date: Checked By: Date: SITE 2: BERKSDALE, UNDER HWY. 71 BRIDGE Average Height = 10 Ft. Length = 175 Ft. Side Slope = 2:1 ENGINEERING ITEM COST Survey $ 4,200 Environmental Permitting $ 7,000 Roadway Design $ 20,000 Bidding Phase Services $ 2,000 Construction Administration $ 10,000 SUBTOTAL $ 43,200 CONTINGENCY 0% 0 TOTAL ENGINEERING $ 43,200 CONSTRUCTION UNIT ITEM QUANTITY UNIT PRICE COST Compacted Embankment 324 Cu. Yd. $13 $ 4,212 Unclassified Excavation 324 Cu. Yd. $11 $ 3,564 Mobilization 1 LS $4000 $ 4,000 Erosion Control 1 LS $2010 $ 2,010 Filter Blanket 522 Sq. Yd. $5 $ 2,610 Riprap - Majority greater than 90 lbs 247 Cu. Yd. $110 $ 27,170 SUBTOTAL $ 43,566 CONTINGENCY 20% 8,713 TOTAL CONSTRUCTION $ 52,279 TOTAL STREAMBANK REPAIR SITE COST $ 95,479 Gabions - Cost Increase if Used 195 Cu. Yd. $325 $ 33,595 Estimated protection cost does not include hydraulic permitting if a CLOMR/LOMR process is required. If the local floodplain administrator requires a submittal it would increase cost up to $35,000. Page 2 of 8

13 Client: Bella Vista POA Project: Streambank Repair Cost Estimate Made By: RWC Date: Checked By: Date: SITE 3: BERKSDALE, WEST OF HWY. 71 BRIDGE Site is split into two sections by an existing riprap section of streambank. East: Average Height = 15 Ft. West: Average Height = 8 Ft. Length = 195 Ft. Length = 205 Ft. Side Slope = 2:1 Side Slope = 2:1 ENGINEERING ITEM COST Survey $ 4,200 Environmental Permitting $ 7,000 Roadway Design $ 20,000 Bidding Phase Services $ 2,000 Construction Administration $ 10,000 SUBTOTAL $ 43,200 CONTINGENCY 0% 0 TOTAL ENGINEERING $ 43,200 CONSTRUCTION UNIT ITEM QUANTITY UNIT PRICE COST Compacted Embankment Cu. Yd. $13 $ 14,112 Unclassified Excavation Cu. Yd. $11 $ 11,941 Mobilization 1 LS $4000 $ 4,000 Erosion Control 1 LS $5970 $ 5,970 Filter Blanket 1334 Sq. Yd. $5 $ 6,670 Riprap - Majority greater than 90 lbs 667 Cu. Yd. $110 $ 73,370 SUBTOTAL $ 116,062 CONTINGENCY 20% 23,212 TOTAL CONSTRUCTION $ 139,274 TOTAL STREAMBANK REPAIR SITE COST $ 182,474 Gabions - Cost Increase if Used 325 Cu. Yd. $325 $ 25,585 Estimated protection cost does not include hydraulic permitting if a CLOMR/LOMR process is required. If the local floodplain administrator requires a submittal it would increase cost up to $35,000. Page 3 of 8

14 Client: Bella Vista POA Project: Streambank Repair Cost Estimate Made By: RWC Date: Checked By: Date: SITE 4: BERKSDALE, EAST OF THE 18 th GREEN Average Height = 14 Ft. Length = 500 Ft. Side Slope = 2:1 ENGINEERING ITEM COST Survey $ 6,000 Environmental Permitting $ 7,000 Roadway Design $ 27,000 Bidding Phase Services $ 2,000 Construction Administration $ 10,000 SUBTOTAL $ 52,000 CONTINGENCY 0% 0 TOTAL ENGINEERING $ 52,000 CONSTRUCTION UNIT ITEM QUANTITY UNIT PRICE COST Compacted Embankment 1815 Cu. Yd. $13 $ 23,595 Unclassified Excavation 1815 Cu. Yd. $11 $ 19,965 Mobilization 1 LS $12500 $ 12,500 Erosion Control 1 LS $9600 $ 9,600 Filter Blanket 1989 Sq. Yd. $5 $ 9,945 Riprap - Majority greater than 90 lbs 953 Cu. Yd. $110 $ 104,830 SUBTOTAL $ 180,435 CONTINGENCY 20% 36,087 TOTAL CONSTRUCTION $ 216,522 TOTAL STREAMBANK REPAIR SITE COST $ 268,522 Gabions - Cost Increase if Used 778 Cu. Yd. $325 $ 138,075 Estimated protection cost does not include hydraulic permitting if a CLOMR/LOMR process is required. If the local floodplain administrator requires a submittal it would increase cost up to $35,000. Page 4 of 8

15 Client: Bella Vista POA Project: Streambank Repair Cost Estimate Made By: RWC Date: Checked By: Date: SITE 5: KINGSWOOD, KINGSWOOD, BETWEEN THE BACK TEE OF #18 AND BRIDGE FROM #17 GREEN TO THE FORWARD TEE AT #18 Average Height = 18 Ft. Length = 450 Ft. Side Slope = 2:1 ENGINEERING ITEM COST Survey $ 6,000 Environmental Permitting and ArDOT Permitting $ 9,000 Roadway Design $ 30,000 Bidding Phase Services $ 2,000 Construction Administration $ 10,000 SUBTOTAL $ 57,000 CONTINGENCY 0% 0 TOTAL ENGINEERING $ 57,000 CONSTRUCTION UNIT ITEM QUANTITY UNIT PRICE COST Compacted Embankment 2700 Cu. Yd. $13 $ 35,100 Unclassified Excavation 2700 Cu. Yd. $11 $ 29,700 Mobilization 1 LS $15000 $ 15,000 Erosion Control 1 LS $13260 $ 13,260 Filter Blanket 2237 Sq. Yd. $5 $ 11,185 Riprap - Majority greater than 90 lbs 1081 Cu. Yd. $110 $ 118,910 SUBTOTAL $ 223,155 CONTINGENCY 20% 44,631 TOTAL CONSTRUCTION $ 267,786 TOTAL STREAMBANK REPAIR SITE COST $ 324,786 Gabions - Cost Increase if Used 900 Cu. Yd. $325 $ 162,405 Estimated protection cost does not include hydraulic permitting if a CLOMR/LOMR process is required. If the local floodplain administrator requires a submittal it would increase cost up to $35,000. This site is located along ArDOT's right of way. If the streambank continues to erode it would be a hazard for motorists on Highway 71 prompting a response/repair from ArDOT. Page 5 of 8

16 Client: Bella Vista POA Project: Streambank Repair Cost Estimate Made By: RWC Date: Checked By: Date: SITE 6: KINGSWOOD, WEST OF THE 4 th GREEN Average Height = 10 Ft. Length = 200 Ft. Side Slope = 2:1 ENGINEERING ITEM COST Survey $ 4,200 Environmental Permitting $ 7,000 Roadway Design $ 20,000 Bidding Phase Services $ 2,000 Construction Administration $ 10,000 SUBTOTAL $ 43,200 CONTINGENCY 0% 0 TOTAL ENGINEERING $ 43,200 CONSTRUCTION UNIT ITEM QUANTITY UNIT PRICE COST Compacted Embankment Cu. Yd. $13 $ 4,817 Unclassified Excavation Cu. Yd. $11 $ 4,076 Mobilization 1 LS $8000 $ 8,000 Erosion Control 1 LS $2300 $ 2,300 Filter Blanket 597 Sq. Yd. $5 $ 2,985 Riprap - Majority greater than 90 lbs 282 Cu. Yd. $110 $ 31,020 SUBTOTAL $ 53,197 CONTINGENCY 20% 10,639 TOTAL CONSTRUCTION $ 63,836 TOTAL STREAMBANK REPAIR SITE COST $ 107,036 Gabions - Cost Increase if Used 223 Cu. Yd. $325 $ 38,470 Estimated protection cost does not include hydraulic permitting if a CLOMR/LOMR process is required. If the local floodplain administrator requires a submittal it would increase cost up to $35,000. Page 6 of 8

17 Client: Bella Vista POA Project: Streambank Repair Cost Estimate Made By: RWC Date: Checked By: Date: SITE 7: KINGSWOOD, CONFLUENCE WITH LAKE ANN TRIBUTARY Average Height = 8 Ft. Length = 270 Ft. Side Slope = 2:1 ENGINEERING ITEM COST Survey $ 4,200 Environmental Permitting $ 7,000 Roadway Design $ 20,000 Bidding Phase Services $ 2,000 Construction Administration $ 10,000 SUBTOTAL $ 43,200 CONTINGENCY 0% 0 TOTAL ENGINEERING $ 43,200 CONSTRUCTION UNIT ITEM QUANTITY UNIT PRICE COST Compacted Embankment 320 Cu. Yd. $13 $ 4,160 Unclassified Excavation 320 Cu. Yd. $11 $ 3,520 Mobilization 1 LS $6000 $ 6,000 Erosion Control 1 LS $2330 $ 2,330 Filter Blanket 672 Sq. Yd. $5 $ 3,360 Riprap - Majority greater than 90 lbs 313 Cu. Yd. $110 $ 34,430 SUBTOTAL $ 53,800 CONTINGENCY 20% 10,760 TOTAL CONSTRUCTION $ 64,560 TOTAL STREAMBANK REPAIR SITE COST $ 107,760 Gabions - Cost Increase if Used 240 Cu. Yd. $325 $ 40,210 Estimated protection cost does not include hydraulic permitting if a CLOMR/LOMR process is required. If the local floodplain administrator requires a submittal it would increase cost up to $35,000. Page 7 of 8

18 Client: Bella Vista POA Project: Streambank Repair Cost Estimate Made By: RWC Date: Checked By: Date: STREAMBANK REPAIR COST ESTIMATE LOCATION Site 1: Berksdale, East of Hwy. 71 Bridge Site 2: Berksdale, Under Hwy. 71 Bridge Site 3: Berksdale, West of Hwy. 71 Bridge Site 4: Berksdale, East of the 18 th Green Site 5: Kingswood, Kingswood, Between the back tee of #18 and bridge from #17 green to the forward tee at #18 Site 6: Kingswood, West of the 4 th Green Site 7: Kingswood, Confluence with Lake Ann Tributary ENGINEERING CONSTRUCTION TOTAL SITE COST $43,200 $33,540 $76,740 $43,200 $52,279 $95,479 $43,200 $139,274 $182,474 $52,000 $216,522 $268,522 $57,000 $267,786 $324,786 $43,200 $43,200 $64,560 $107,760 TOTAL STREAMBANK REPAIR COST $63,836 $107,036 $1,162,798 Page 8 of 8

19 APPENDIX B BRIDGE REPAIR COST

20 Client: Bella Vista POA Project: Bridge Replacement Cost Estimate Made By: TMR Date: Checked By: Date: BRIDGE SITE 1 ENGINEERING ITEM COST Survey $ 4,200 Environmental Permitting $ 7,000 Geotechnical Investigations $ 5,000 Bridge Design $ 35,000 Roadway Design $ 35,000 Bidding Phase Services $ 6,000 Construction Administration $ 25,000 SUBTOTAL $ 117,200 CONTINGENCY 20% 23,440 TOTAL ENGINEERING $ 140,640 CONSTRUCTION UNIT ITEM QUANTITY UNIT PRICE COST Removal of Existing Bridge 1269 sq. ft. $20 $ 25,380 Prefabricated Steel Truss (120' x 12.5') $ 100,900 Construction $ 95,000 SUBTOTAL $ 221,280 CONTINGENCY 20% 44,256 TOTAL CONSTRUCTION $ 265,536 TOTAL BRIDGE REPLACEMENT COST $ 406,176 Estimated replacements costs do not include hydraulic permitting if a CLOMR/LOMR process is required. A CLOMR/LOMR can increase costs of up to $35,000. Page 1 of 6

21 Client: Bella Vista POA Project: Bridge Replacement Cost Estimate Made By: TMR Date: Checked By: Date: BRIDGE SITE 2 ENGINEERING ITEM COST Survey $ 4,200 Environmental Permitting $ 7,000 Geotechnical Investigations $ 5,000 Bridge Design $ 35,000 Roadway Design $ 35,000 Bidding Phase Services $ 6,000 Construction Administration $ 25,000 SUBTOTAL $ 117,200 CONTINGENCY 20% 23,440 TOTAL ENGINEERING $ 140,640 CONSTRUCTION UNIT ITEM QUANTITY UNIT PRICE COST Removal of Existing Bridge 1269 sq. ft. $20 $ 25,380 Prefabricated Steel Truss (120' x 12.5') $ 100,900 Construction $ 95,000 SUBTOTAL $ 221,280 CONTINGENCY 20% 44,256 TOTAL CONSTRUCTION $ 265,536 TOTAL BRIDGE REPLACEMENT COST $ 406,176 Estimated replacements costs do not include hydraulic permitting if a CLOMR/LOMR process is required. A CLOMR/LOMR can increase costs of up to $35,000. Page 2 of 6

22 Client: Bella Vista POA Project: Bridge Replacement Cost Estimate Made By: TMR Date: Checked By: Date: BRIDGE SITE 3 ENGINEERING ITEM COST Survey $ 4,200 Environmental Permitting $ 7,000 Geotechnical Investigations $ 5,000 Bridge Design $ 35,000 Roadway Design $ 35,000 Bidding Phase Services $ 6,000 Construction Administration $ 25,000 SUBTOTAL $ 117,200 CONTINGENCY 20% 23,440 TOTAL ENGINEERING $ 140,640 CONSTRUCTION UNIT ITEM QUANTITY UNIT PRICE COST Removal of Existing Bridge 1054 sq. ft. $20 $ 21,080 Prefabricated Steel Truss (100' x 12.5') $ 80,900 Construction $ 95,000 SUBTOTAL $ 196,980 CONTINGENCY 20% 39,396 TOTAL CONSTRUCTION $ 236,376 TOTAL BRIDGE REPLACEMENT COST $ 377,016 Estimated replacements costs do not include hydraulic permitting if a CLOMR/LOMR process is required. A CLOMR/LOMR can increase costs of up to $35,000. Page 3 of 6

23 Client: Bella Vista POA Project: Bridge Replacement Cost Estimate Made By: TMR Date: Checked By: Date: BRIDGE SITE 4 ENGINEERING ITEM COST Survey $ 4,200 Environmental Permitting $ 7,000 Geotechnical Investigations $ 5,000 Bridge Design $ 35,000 Roadway Design $ 35,000 Bidding Phase Services $ 6,000 Construction Administration $ 25,000 SUBTOTAL $ 117,200 CONTINGENCY 20% 23,440 TOTAL ENGINEERING $ 140,640 CONSTRUCTION UNIT ITEM QUANTITY UNIT PRICE COST Removal of Existing Bridge 2081 sq. ft. $20 $ 41,620 Prefabricated Steel Truss (120' x 12.5') $ 100,900 Construction $ 95,000 SUBTOTAL $ 237,520 CONTINGENCY 20% 47,504 TOTAL CONSTRUCTION $ 285,024 TOTAL BRIDGE REPLACEMENT COST $ 425,664 Estimated replacements costs do not include hydraulic permitting if a CLOMR/LOMR process is required. A CLOMR/LOMR can increase costs of up to $35,000. Page 4 of 6

24 Client: Bella Vista POA Project: Bridge Replacement Cost Estimate Made By: TMR Date: Checked By: Date: BRIDGE SITE 5 ENGINEERING ITEM COST Survey $ 4,200 Environmental Permitting $ 7,000 CLOMR/LOMR $ 35,000 Geotechnical Investigations $ 5,000 Bridge Design $ 35,000 Roadway Design $ 35,000 Bidding Phase Services $ 6,000 Construction Administration $ 25,000 SUBTOTAL $ 152,200 CONTINGENCY 20% 30,440 TOTAL ENGINEERING $ 182,640 CONSTRUCTION UNIT ITEM QUANTITY UNIT PRICE COST Removal of Existing Bridge 1708 sq. ft. $20 $ 34,160 Prefabricated Steel Truss (120' x 12.5') $ 100,900 Construction $ 67,000 SUBTOTAL $ 202,060 CONTINGENCY 20% 40,412 TOTAL CONSTRUCTION $ 242,472 TOTAL BRIDGE REPLACEMENT COST $ 425,112 Page 5 of 6

25 Client: Bella Vista POA Project: Bridge Replacement Cost Estimate Made By: TMR Date: Checked By: Date: BRIDGE REPLACEMENT ESTIMATE BRIDGE Bridge Site 1 Bridge Site 2 Bridge Site 3 Bridge Site 4 Bridge Site 5 ENGINEERING CONSTRUCTION TOTAL BRIDGE COST $140,640 $265,536 $406,176 $140,640 $265,536 $406,176 $140,640 $236,376 $377,016 $140,640 $182,640 $285,024 $242,472 TOTAL BRIDGE REPLACEMENT COST $425,664 $425,112 $2,040,144 Page 6 of 6

26 APPENDIX C BRIDGE SITE PICTURES

27 Bridge: Bridge Site 1 Site Visit Date: 10/9/2017 Elevation Looking North Path Looking West Elevation Looking North Typical Superstructure

28 Bridge: Bridge Site 2 Site Visit Date: 10/9/2017 Path Looking North Erosion Damage at North Span Elevation Looking West

29 Bridge: Bridge Site 3 Site Visit Date: 10/9/2017 Path Looking West Elevation Looking North Typical Superstructure

30 Bridge: Bridge Site 4 Site Visit Date: 10/9/2017 Path Looking North Elevation Looking East Damaged Pier Due to Flooding Typical Superstructure

31 Bridge: Bridge Site 5 Site Visit Date: 10/9/2017 Path Looking East Elevation Looking South Typical Superstructure

32 ATTACHMENT 1 BIG R

33 650 JUSTICE LANCE MANSFIELD, TEXAS Phone Toll Free BUDGET ESTIMATE Budget Date: 9/18/2017 Bid Date: Expiration Date: 1/15/2018 Opportunity No.: PROJECT: Bella Vista Golf Course # Item Description Quantity Unit Price Total Price 1 Prefabricated steel truss pedestrian bridge superstructure with features as described below: Bridge Model: Ped Truss Parallel Chord H Section FB Length: AS NOTED Width: 12ft Design Code: AASHTO Design Vehicle: HS20 44 Live Load: 95 psf Number of Pieces: 2 / bridge (field bolting by others) Finish: Weathering SP7 Clean Bridge Decking: Concrete (shop installed deck forms) Railing Type: Horizontal Rails 4" Max Opening Railing Height: 54 INCHES Bearings: Bearing assemblies included. Berksdale 4: 120 span $117,900 Berksdale 11: 100 span $94,900 Berksdale 12: 120 span $117,900 Berksdale 18: 120 span $117,900 Kingswood 8: 120 span $117,900 Deck forms are shop installed ready to receive a field poured reinforced concrete deck by others. Estimated Design fee for foundations $7,500 per Span. 1 ea. Lump Sum Includes Freight $566, To ensure quality standards are followed, Big R Bridge holds the following certifications: In the United States we are certified under the AISC Quality Certification Program for Simple and Major Steel Bridges with Fracture Critical and Sophisticated Paint endorsements. In Canada we are certified under the Canadian Welding Bureau (CWB) as being qualified under CSA Standard W47.1, Division 2. The following items are not included with this proposal: third party inspection of bridge during fabrication, design, excavation and construction of bridge abutments, anchor bolt design, supply and installation, unloading and assembly of bridge at the project site, supply and placement of reinforced concrete deck (if applicable), site surveys, permitting or geotechnical evaluations, any federal, state, county or local sales tax. Lead times for drawing submittals and final product delivery to be mutually agreed based on Customer requirements and Big R Bridge production capabilities at the time of order. Prices are FOB: Big R Greeley, CO with freight allowed to Bella Vista, AR. Delivery will be to a common stockpile accessible by standard highway tractor trailer, buyer to unload and assemble. Aaron Clauson Sr. Business Development Manager: Phone (817) , aclauson@bigrbridge.com Page 1 of 1

34 ATTACHMENT 2 CONTECH

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38 ATTACHMENT 3 KINGSWOOD 18 CONSTRUCTION COSTS

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40 Burns & McDonnell 6815 Isaac s Orchard Road, Suite B3 Springdale, AR O F