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Home My WebLink About17- Change Order 2 - Knife River Belgrade - North Wallace Avenue Reconstruction Project Change Order No. 2 Date of Issuance: November 20, 2017 Effective Date: November 20, 2017 Project: North Wallace Avenue Owner: City of Bozeman Owner's Contract No.: N/A Reconstruction Contract: North Wallace Avenue Reconstruction Date of Contract: May 13, 2016 Contractor: Knife River-Belgrade Engineer's Project No.: 11415008.5 The Contract Documents are modified as follows upon execution of this Change Order: Description: Added 33 Calendar Days to the Contract Time;Applied All Additional Days to the Time for Substantial Completion(Including Additional Days Granted with Change Oder#1);Final Adjustment of Contract Price Attachments(list documents supporting change): Cover Letter supporting Contractor requested days Final Pay Request showing final quantities and percentage of Bid Quantity. CHANGE IN CONTRACT PRICE: CHANGE IN CONTRACT TIMES: Original Contract Price: Original Contract Times: ❑Working days ® Calendar days Substantial completion(days): 130 $ 2,278,915.75 Ready for final payment(days): [Increase] [Decrease] from previously approved Increase from previously approved Change Orders Change Orders No. to No. No. 1 to No. 1: Substantial completion(days): 13 $ N/A Ready for final payment(days): Contract Price prior to this Change Order: Contract Times prior to this Change Order: Substantial completion(days): 143 $_ 2,278,915.75 Ready for final payment(days): Increase of this Change Order: Increase of this Change Order: Substantial completion(days): 33 $ 206,064.94 Ready for final payment(days): Contract Price incorporating this Change Order: Contract Times with all approved Change Orders: Substantial completion(date):November 23,2016 $ 2,484,980.69 Ready for final payment(date): RECO ACCEPT D: ACCEPTED:/� ��.6d By: By: By: IYLW Engineer(A thou d Signature) Owner(Authorized Signature) Contractor(Authorized Signature) Date: 1117,9 4,11 7 Date: Lha AA!Lt Date: //-,% 7'A,017 Approved by Funding Agency(if applicable): Date: EJCDC C-941 Change Order Prepared by the Engineers Joint Contract Documents Committee and endorsed by the Construction Specifications Institute. Page 1 of 2 Date of Issuance: November 20, 2017 Effective Date: November 20, 2017 Project: North Wallace Avenue Owner: City of Bozeman Owner's Contract No.: N/A Reconstruction Contract: North Wallace Avenue Reconstruction Date of Contract: May 13, 2016 Contractor: Knife River- Belgrade Engineer's Project No.: 11415008.5 You are hereby requested to comply with the following changes from the contract plans and specifications: Bid Item Description of Changes DECREASE INCREASE No. in Contract Price in Contract Price 107 Deduct 16 LF—6"Sch. 80 PVC Conduit $304.00 108 Deduct 29 HRS—Exploratory Excavation-Large Crew $13,050.00 109 Deduct 22 HRS—Exploratory Excavation-Small Crew $5,500.00 201 Deduct 41.60%-Miscellaneous Work $14,559.62 202 Deduct 1,187 SF—Concrete Removal-Flat Work $1,899.20 203 Add 247 LF—Concrete Removal-Curb&Gutter $617.50 204 Deduct 1—Remove Existing Street Sign&Post $60.00 205 Add 122 CY—Excavation Above Subgrade $3,050.00 206 Add 10,335 SY—Subgrade Stabilization $155,025.00 207 Add 82 CY— 1 '/2 Crushed Base Course $2,296.00 209 Add 283.18 Ton—Asphalt Concrete Surface Course Grade $15,291.72 Type B 210 Add 1 —Asphalt Cement Binder(PG 58-28) $1.00 211 Add 152 LF—Combined Curb and Gutter $1,748.00 212 Add 156 SF—4-Inch Sidewalk $1,092.00 213 Add 1900 SF—6-Inch Sidewalk $15,200.00 214 Add 4 SF—Detectable Warning Panels $120.00 215 Deduct 131 SF—Concrete Driveway(6-Inch) $1,048.00 216 Add 8—Street Sign&Post $2,400.00 217 Add 5—Reset Existing Street Sign&Post $1,000.00 220 Deduct 14.2 LF—Preformed Inlaid Plastic Pavement $142.00 Marking—White(8-inch) 221 Add 13.5 LF-Preformed Inlaid Plastic Pavement Marking $371.25 —White(24-inch) 222 Add.10 LF-Preformed Inlaid Plastic Pavement Marking $2.45 —White Message 223 Add 14.4 Gal—Epoxy Paint—Curb Top&Face $6,480.00 224 Add 68 SY—Hydraulic Seeding $91.80 304 Deduct 59 LF—Remove Existing Storm Drain Pipe $300.90 305 Deduct 16 CY—Fill&Abandon Strom Drain Pipe $1,840.00 309 Add 5 LF—12"SDR 35 PVC Storm Drain Pie $127.50 321 Deduct 4.5 VF—Additional 48"Storm Drain Manhole $1,350.00 Depth 322 Deduct 1 VF-Additional 60"Storm Drain Manhole Depth $300.00 323 Deduct.9 VF-Additional 72"Storm Drain Manhole $270.00 Depth(Non-SID Costs) 324 Deduct 1.6 VF-Additional 72"Storm Drain Manhole $480.00 Depth 329 Add 25—Underground Utility Crossings $19,375.00 330 Deduct 2—Underground Utility Crossings(Non-SID $1,500.00 Costs) 331 Deduct 100 CY—Imported Backfill $2,600.00 332 Deduct 50 CY—Type 2 Pipe Bedding $1,300.00 333 Deduct 8 HR—Exploratory Excavation—Large Crew $3,600.00 334 Deduct 8 HR-Exploratory Excavation—Small Crew $2,000.00 335 Deduct 26 LF—4"SDR 35 PVC Storm Drain Pie $546.00 336 Deduct 23 LF-6"SDR 35 PVC Storm Drain Pipe $529.00 401 Add 37 LF—Remove Existing Water Main $244.40 402 Add 1—Curb Stop&Box $670.00 403 Deduct 152 LF—Water Service Line Replacement $3,496.00 404 Deduct 6—Reconnect Meter(including expansion tank& $6,450.00 backflow reventer) 405 Add 19—Water Service Reconnection at Main(including $15,200.00 new saddle&corporation) 406 Add 30—Underground Utility Crossing $23,250.00 409 Add 31 LF—10"CL 51 Ductile Iron Pipe $2,077.00 410 Add 218 LF-8"CL 51 Ductile Iron Pipe $14 606.00 411 Deduct 50 CY—Type 2 Pipe Bedding $1,300.00 412 Deduct 100 CY—Imported Backfill $2,600.00 414 Deduct 1 —10"Gate Valve&Box $2,075.00 415 Add 2—8"Gate Valve&Box $3,300.00 417 Add 1—10"X 8"Tee $570.00 420 Deduct 2— 10"-45'Bend $1,140.00 421 Deduct 1 -8"-45'Bend $465.00 422 Add 2-8"—22.5°Bend $930.00 424 Deduct 3— 10"-8"Reducer $1,395.00 426 Add 1—8"-6"Reducer $360.00 427 Add 2— 10"Cross $1,140.00 428 Deduct 1—Fire Hydrant Assembly $4,600.00 432 Deduct 1—Connect to Existing 6"Water Main $1,250.00 433 Add 2-Connect to Existing 4"Water Main $2,500.00 434 Add 832 SF—Insulation Board $5,824.00 435 Deduct 3.75 HR—Exploratory Excavation—Large Crew $1,687.50 436 Deduct 8 HR-Exploratory Excavation—Small Crew $2,000.00 506 Deduct 50 CY—Type 2 Pipe Bedding $1,300.00 507 Deduct 100 CY—Imported Backfill $2,600.00 509 Add 2 VF—Additional Manhole Depth $800.00 510 Add 2—Sanitary Sewer Service Reconnect $1,650.00 511 Add 54 LF—Sanitary Sewer Service Replacement $3,888.00 512 Deduct 8—Underground Utility Crossings $6,200.00 513 Add 3.75 HR-Exploratory Excavation—Large Crew $1,687.50 514 Deduct 6 HR-Exploratory Excavation—Small Crew $1,500.00 N/A City of Bozeman Time and Materials Cost for repair of broken sanitary sewer main at N.Wallace and E. Cottonwood intersection. Cost includes replacement of $3,683.96 City's broken flushing hose. See attached Work Order from City of Bozeman TOTALSI $96,921.18 $302,986.12 NET CHANGE IN CONTRACT PRICE $206,064.94 Cost Justification: Final adjustments of bid quantities installed;Majority of added cost associated with Subgrade Stabilization due to poor bearing soils as well as number of Underground Utility Crossings. ENGINEER'S OPINION OF PROBABLE CONSTRUCTION COST North Wallace Avenue Reconstruction Project City of Bozeman,MT 1��K March 9,2016 Description Totals Base Bid Schedule I--General Conditions $418,700 Base Bid Schedule II--Street Improvements $1,122,500 Base Bid Schedule III--Storm Drain Improvements $579,300 Base Bid Schedule IV--Water Main Improvements $760,900 Base Bid Schedule V--Sanitary Sewer Improvements $187,400 Construction Total $3,068,800 ENGINEER'S OPINION OF PROBABLE CONSTRUCTION COST North Wallace Avenue Reconstruction Project --KLJ Street Improvements Only City of Bozeman,MT March 9,2016 Base Bid Schedule I--General Conditions Item# Description Quantity Unit Unit Price TOTAL COST 101 Mobilization 1 LS $ 217,000.00 $217,000 102 Taxes,Bond,&Insurance 1 LS $ 80,000.00 $80,000 103 Stormwater Management&Temporary Erosion Control 1 LS $ 27,000.00 $27,000 104 Construction Traffic Control 1 LS $ 57,400.00 $57,400 105 Concrete Median 1 LS $ 4,150.00 $4,150 106 Traffic Circle 1 LS $ 4,120.00 $4,120 107 6"Schedule 80 PVC Conduit 802 LF $ 10.00 $8,020 108 Exploritory Excavation-Large Crew 30 HR $ 500.00 $15,000 109 Exploritory Excavation-Small Crew 30 1 HR $ 200.00 $6,000 Subtotal $418,700 ENGINEER'S OPINION OF PROBABLE CONSTRUCTION COST North Wallace Avenue Reconstruction Project <<,KLI Street Improvements Only City of Bozeman,MT March 9,2016 Base Bid Schedule II--Street Improvements Item# Description Quantity Unit Unit Price TOTAL COST 201 Miscellaneous Work 1 LS $ 35,000.00 $35,000 202 Concrete Removal-Flatwork 11,343 SF $ 3.00 $34,029 203 Concrete Removal-Curb&Gutter 3,691 LF $ 8.00 $29,528 204 Remove Existing Street Sign&Post 34 EA $ 100.00 $3,400 205 Unclassified Excavation 7,856 CY $ 16.00 $125,696 206 Subgrade Stabilization 603 SY $ 50.00 $30,150 207 1-1/2"Crushed Base Course 4,652 CY $ 35.00 $162,820 208 SS-1 or CSS-1 Emulsified Asphalt 1,207 GAL $ 3.50 $4,225 209 Asphalt Concrete Surface Course Grade Type B 3,388 TON $ 65.00 $220,220 210 Asphalt Cement Binder(PG 58-28) 203 TON $ 550.00 $111,650 211 Combined Curb&Gutter 6,716 LF $ 16.00 $107,456 212 4-Inch Sidewalk 5,141 SF $ 7.50 $38,558 213 6-Inch Sidewalk 1,900 SF $ 8.00 $15,200 214 Detectable Warning Panels 480 SF $ 40.00 $19,200 215 Concrete Driveway(6-inch) 5,755 SF $ 10.00 $57,550 216 Street Sign&Post 90 EA $ 500.00 $45,000 217 Reset Existing Street Sign&Post 1 EA $ 250.00 $250 218 Flexible Delineator 40 EA $ 75.00 $3,000 219 Speed Feedback Sign 1 EA $ 6,000.00 $6,000 220 Preformed Inlaid Plastic Pavement Marking-White(8-inch) 834 LF $ 8.00 $6,672 221 Preformed Inlaid Plastic Pavement Marking White(24-inch) 886 LF $ 24.00 $21,264 222 Preformed Inlaid Plastic Pavement Marking=White Message 322 SF $ 23.50 $7,567 223 Epoxy Paint-Curb Top&Face 18.6 GAL $ 258.00 $4,799 224 Hydraulic Seeding 4,157 SY $ 8.00 $33,256 Subtotal $1,122,500 ENGINEER'S OPINION OF PROBABLE CONSTRUCTION COST KLI North Wallace Avenue Reconstruction Project Storm Drain Improvements Only City of Bozeman,MT March 9,2016 Base Bid Schedule III--Storm Drain Improvements Item# Description Quantity Unit Unit Price TOTAL COST 301 Storm Water Retention Pond and Trail Relocation 1 LS $ 20,000.00 $20,000 302 Remove Existing Storm Drain Inlet 40 EA $ 500.00 $20,000 303 Remove Existing Storm Drain Manhole 10 EA $ 1,200.00 $12,000 304 Remove Existing Storm Drain Pipe 1,085 LF $ 9.00 $9,765 305 Fill and Abandon Storm Drain Pipe 87 CY $ 415.00 $36,105 306 Remove Timber Wingwall(Non-SID Costs) 1 LS $ 500.00 $500 307 Storm Water Treatment and Diversion Structure(Non-SID Costs) 1 EA $ 60,000.00 $60,000 308 Storm Water Outfall Structure(Non-SID Costs) 1 EA $ 10,500.00 $10,500 309 12"SDR 35 PVC Storm Drain Pipe 530 LF $ 50.00 $26,500 310 12"SDR 35 PVC Storm Drain Pipe(Non-SID Costs) 26 LF $ 50.00 $1,300 311 15"SDR 35 PVC Storm Drain Pipe 58 LF $ 55.00 $3,190 312 18"ASTM F949 PVC Storm Drain Pipe 1,559 LF $ 60.00 $93,540 313 24"ASTM F949 PVC Storm Drain Pipe 1,094 LF $ 70.00 $76,580 314 30"ASTM F949 PVC Storm Drain Pipe(Non-SID Costs) 317 LF $ 90.00 $28,530 315 15"Class 4 RCP Storm Drain Pipe 43 LF $ 60.00 $2,580 316 30"Class 2 RCP Storm Drain Pipe(Non-SID Costs) 69 LF $ 105.00 $7,245 317 48"Storm Drain Manhole 9 EA $ 3,200.00 $28,800 318 60"Storm Drain Manhole 1 EA $ 5,800.00 $5,800 319 72"Storm Drain Manhole(Non-SID Costs) 1 EA $ 7,800.00 $7,800 320 72"Storm Drain Manhole 2 EA $ 7,800.00 $15,600 321 Additional 48"Storm Drain Manhole Depth 10 VF $ 180.00 $1,800 322 Additional 60"Storm Drain Manhole Depth 1 VF $ 300.00 $300 323 Additional 72"Storm Drain Manhole Depth(Non-SID Costs) 4 VF $ 350.00 $1,400 324 Additional 72"Storm Drain Manhole Depth 4 VF $ 350.00 $1,400 325 Storm Drain Inlet-36" 16 EA $ 3,000.00 $48,000 326 Storm Drain Inlet-36"(Non-SID Costs) 1 EA $ 3,000.00 $3,000 327 Combination 48"Manhole and Curb Inlet 6 EA $ 3,500.00 $21,000 328 Connect Existing Storm Sewer Pipe to New Manhole 3 EA $ 1,500.00 $4,500 329 Underground Utility Crossings 25 EA $ 400.00 $10,000 330 Underground Utility Crossings(Non-SID Costs) 7 EA $ 400.00 $2,800 331 Imported Backfill 100 CY $ 60.00 $6,000 332 Type 2 Pipe Bedding 50 CY $ 72.00 $3,600 333 Exploritory Excavation-Large Crew 8 HR $ 500.00 $4,000 334 Exploritory Excavation-Small Crew 8 HR $ 200.00 $1,600 335 4"SDR 35 PVC Storm Drain Pipe 46 LF $ 50.00 $2,300 336 6"SDR 35 PVC Storm Drain Pipe 23 LF $ 55.00 $1,265 Subtotal $579,300 ENGINEER'S OPINION OF PROBABLE CONSTRUCTION COST North Wallace Avenue Reconstruction Project KLI Water Main Improvements Only City of Bozeman,MT March 9,2016 Base Bid Schedule IV--Water Main Improvements Item# Description Quantity Unit Unit Price TOTAL COST 401 Remove Existing Water Main 3,570 LF $ 12.00 $42,840 402 Curb Stop&Box 23 EA $ 300.00 $6,900 403 Water Service Line Replacement 1,424 LF $ 50.00 $71,200 404 Reconnect Meter(including expansion tank&backflow preventer) 9 EA $ 500.00 $4,500 405 Water Service Reconnection at Main(including new saddle&corporation) 43 EA $ 450.00 $19,350 406 Underground Utility Crossings 53 EA $ 400.00 $21,200 407 Temporary Water System 1 LS $ 70,000.00 $70,000 408 12"CL 51 Ductile Iron Pipe 46 LF $ 100.00 $4,600 409 10"CL 51 Ductile Iron Pipe 3,200 LF $ 90.00 $288,000 410 8"CL 51 Ductile Iron Pipe 327 LF $ 75.00 $24,525 411 Type 2 Pipe Bedding 50 CY $ 72.00 $3,600 412 Imported Backfill 100 CY $ 60.00 $6,000 413 12"Gate Valve&Box 1 EA $ 5,000.00 $5,000 414 10"Gate Valve&Box 18 EA $ 2,500.00 $45,000 415 8"Gate Valve&Box 7 EA $ 1,900.00 $13,300 416 12"X 6"Tee 1 EA $ 800.00 $800 417 10"X 8"Tee 2 EA $ 1,200.00 $2,400 418 10"X 6"Tee 8 EA $ 1,050.00 $8,400 419 8"X6"Tee 4 EA $ 750.00 $3,000 420 10"-45'Bend 20 EA $ 700.00 $14,000 421 8"-45'Bend 10 EA $ 600.00 $6,000 422 8"-22.5°Bend 1 EA $ 550.00 $550 423 12"-10"Reducer 1 EA $ 800.00 $800 424 10"-8"Reducer 7 EA $ 625.00 $4,375 425 10"-4"Reducer 1 EA $ 550.00 $550 426 8"-6"Reducer 6 EA $ 450.00 $2,700 427 10"Cross 2 EA $ 1,650.00 $3,300 428 Fire Hydrant Assembly 13 EA $ 5,500.00 $71,500 429 Connect to Existing 12"Water Main 1 EA $ 1,700.00 $1,700 430 Connect to Existing 10"Water Main 3 EA $ 850.00 $2,550 431 Connect to Existing 8"Water Main 1 EA $ 800.00 $800 432 Connect to Existing 6"Water Main 6 EA $ 800.00 $4,800 433 Connect to Existing 4"Water Main 1 EA $ 750.00 $750 434 Insulation 64 SF $ 5.00 $320 435 Exploritory Excavation-Large Crew 8 HR $ 500.00 $4,000 436 Exploritory Excavation-Small Crew 8 HR $ 200.00 $1,600 Subtotal $760,900 ENGINEER'S OPINION OF PROBABLE CONSTRUCTION COST North Wallace Avenue Reconstruction Project Sanitary Sewer Improvements Only City of Bozeman,MT March 9,2017 Base Bid Schedule V--Sanitary Sewer Improvements Item# Description Quantity Unit Unit Price TOTAL COST 501 By-Pass Pumping 1 LS $ 15,000.00 $15,000 502 Connect to Existing 6"Sanitary Sewer 3 EA $ 500.00 $1,500 503 Connect to Existing 8"Sanitary Sewer 2 EA $ 550.00 $1,100 504 6"-SDR 35 Sanitary Sewer Main 15 LF $ 50.00 $750 505 8"-SDR 35 Sanitary Sewer Main 1,542 LF $ 55.00 $84,810 506 Type 2 Pipe Bedding 50 CY $ 72.00 $3,600 507 Imported Backfill 100 CY $ 60.00 $6,000 508 48"Sanitary Sewer Manhole 5 EA $ 3,200.00 $16,000 509 Additional Manhole Depth 8 VF $ 250.00 $2,000 510 Sanitary Sewer Service Reconnect 46 EA $ 800.00 $36,800 511 Sanitary Sewer Service Replacement 100 LF $ 50.00 $5,000 512 Underground Utility Crossings 23 EA $ 400.00 $9,200 513 Exploritory Excavation-Large Crew 8 HR $ 500.00 $4,000 514 Exploritory Excavation-Small Crew 8 HR $ 200.00 $1,600 Subtotal $187,400 Stadium Drive Suite 3 Bozeman, K L� Bozeman,MT59715-0697 406 404 1849 �r Idieng.com November 28, 2017 Bob Murray DEL i Project Engineer City of Bozeman 20 East Olive Bozeman, MT 59715 Re: 11415008.5 - North Wallace Avenue Reconstruction Mr. Murray: Please find enclosed four (4) original signed forms of Contract Change Order No. 2 for the referenced project. In total, Knife River has requested 55 additional contract days on the overall project; however, we recommend providing 33 additional contract days as described below for extra work and lost production. Please review and sign and date each original form. Once executed, please provide one (1) copy back to KLJ, and please provide one (1) copy to Knife River - Belgrade. • (23) Days - Subgrade Stabilization work throughout project area which included over excavation, geogrid and additional 7" thick layer of compacted base material. Knife River had 33 scheduled for excavation and base work. This 23 days equates to 70% of the time scheduled for associated work in the Bid. (4) Days - Lost time waiting on decision on how/where to extend water main along Davis St. Sime work was on critical path, and lost time affected remaining water work and sanitary sewer work. • (2) Days - Lost production time waiting on decision for conflict resolution on MH ST-7 and field modifications to manhole. Existing sanitary sewer was encountered deeper than plan, requiring new storm main to be lowered. New invert out was lowered to avoid sanitary sewer main, creating conflict with water main. Storm and water main crossing were excavated to provide flow fill encasement. • (4) Days - Lost production affecting critical path work due to NWE and Century Link utility and pole relocations at intersections. • (1) Day - Temporary opening of Tamarack and Wallace intersection to accommodate COP closures to L Street for sewer crossing work, which affected Phase 2 critical path Wallace schedule. In addition to the adjustment of Contract Days, this Change Order No. 2 also provides the final adjustment of bid item quantities completed. Included with the Change Order form is an itemization summary of all quantities deducted and added. The most significant single quantity overrun was due to the amount of subgrade stabilization needed because of poor underlying soils encountered throughout the project at the street subgrade. Also, there were relatively significant overruns in the quantities of asphalt placed, underground utility <<KLI crossings completed, water service reconnections as well as the added length of water main extended along Davis Street. Though the final Contract Price has been adjusted up to $2,484,980.69, this cost is still below the final construction estimate dated March 9, 2016. I've also enclosed a copy of this construction estimate for reference. If you should have any questions or concerns, please feel free to contact me at any time. Sincerely, KLJ Shane Strong, PE Project Manager Enclosure(s): Contract Change Order No. 2 (4-Originals); Engineer's Opinion of Probable Construction Cost (1-Copy) Project #: 11415008.5 cc: Mr. Rick Hixson, City Engineer (via email) Mr. Brit Fontenot, Director of Economic Development (via email) Page 2 of 2