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Home My WebLink About2016-07-06 PACKET 07.H. Cottage J Grove ��er� Pride and Qro�P�rity Me�t Clt�/ COUI'1CII CONSENTAGENDA Acfion Request Form �'H' Meeting Date 7/6/2016 Department Community Development Title of Request CP Rail Water Main Improvements - Change Order No. 1 Staff Recommendation Approve Change Order No. 1 for the CP Rail Water Main Improvements. ATTACH MENTS: Description Type Upload Date CC Memo Cover Memo 7/1/2016 Change Order No. 1 Exhibit 7/1/2016 Cottage J Grove �here Pride anaP�osperity Meet TO: Honorable Mayor and City Council Charlene Stevens, City Administrator FROM: Jennifer Levitt, PE, Community Development Director/City Engineer Ryan Burfeind, PE, Project Engineer DATE: June 29, 2016 RE: Change Order No. 1 — CP Rail Water Main Improvements Background The CP Rail Water Main Improvements project involved the lowering of approximately 960 feet of water main adjacent to the CP Rail corridor near the Metro Transit Park & Ride along West Point Douglas Road. The project also included the installation of an additional connection to the water main near the future water tower site. This would allow for the potential connection of a 16-inch water main to the Hadley Avenue/80th Street area after a future water tower is built. Finally, the project included the addition of a water main service into the Southeast Industrial Park site, which would allow for looping of the onsite water system for improved water quality. All costs associated to this project and change order are funded through the Water Area Fund. Discussion While completing the CP Rail Water Main Improvements project, the contractor encountered two differing conditions which resulted in additional costs to complete the work. The additional costs are detailed below. • Part 1 — Rock excavation: This provides compensation to the contractor for the rock encoun- tered during the water main installation. • Part 2 — Connection at RCP casing: Due to the elevation difference between the planned elevation of the water main and the actual elevation encountered in the field, additional time was needed to make the connection to the water main. The original plan showed an at-grade connection and the contractor had to use water main fittings to make the connection. • Part 3 — Additional over depth: The water main was installed to match the grades from CP Rail. This resulted in additional depth compared to the grades shown on the plan. Due to the on-site conditions (steep slopes, tight conditions) the contractor had to use a two-backhoe operation to move the material. • Part 4 — Insulation: Insulation at the water main bends was installed in areas of reduced cover. Honorable Mayor, City Council, and Charlene Stevens Change Order No. 1 —CP Rail Water Main Improvements Project June 29, 2016 Page 2 of 2 The first differing condition was related to Part 1 , due to bedrock that was encountered during the water main lowering process. Based on previous information when the water main was initially installed, bedrock was not anticipate to be encountered. During the lowering process, a short section of bedrock was found, which required additional time and materials for the contractor to remove. The additional cost related to Part 1 is $9,913.00. The second differing condition was related to the elevation of the water main in relation to CP Rail's proposed finished grades. This resulted in Parts 2 to 4 listed above. There were two loca- tions where the water main was located inside concrete casing pipe as it goes underneath the railroad tracks. These two casing pipes were located at a higher elevation than originally antici- pated based on the as-built information the City had. As a result, the contractor had to spend additional time making the connection from the water main that was lowered to the water main in the concrete casing pipe. The contractor also installed insulation over the water main in the casing pipe areas to mitigate potential frost issues with the reduced cover over the pipe. Finally, the pipe needed to be placed at a lower depth than anticipated in certain areas based on final grade information received from CP Rail. The total cost related to Parts 2 to 4 is $3,734.13. One other item of note is the water main in the concrete casing pipe remained in place, rather than removed and re-installed with new fittings, which resulted in an approximately $5,790 reduction in project costs. This water main was able to remain in place due to the fact the pipe and fittings were in good condition. Taking into account the additional fittings required raise the pipe elevation in the area of the higher concrete casing pipes, the base project costs are estimated at $160,641.50 compared to the original $150,737.50 project amount. The original scope of the project included the use of these fittings; the additional costs seen here are a result of the increased quantity. Change Order #1 would bring the project total to $174,288.63. It is important to note that the City received very competitive bids for this project, and even with the change order, the project is well under the engineer's estimate of $200,000. This project has been completed and no additional costs are anticipated. Recommendation It is recommended to approve Change Order No. 1 in the value of a $13,647.13 addition to the CP Rail Water Main Improvements Project. Owner:Ciry of Cottage Grove, 12800 Ravine Pkwy.S., Cottage Grove, MN 55016 Date May 24, 2016 �Stantec Contractor:Minger Construction Co., Inc.,620 Corporate Dr.,Jordan, MN 55352 Bond Co:Great American Ins.Co.,301 E.Fourth St.,Cincinnati,OH 45202 Bond No: 4584815 CHANGE ORDER NO. 1 CP RAIL WATERMAIN IMPROVEMENTS �;`-� � ' '� �� STANTEC PROJECT NO. 193803373 �� ,;.�; r Description of Work This Change Order provides for additional work on this project including: Part 1 of this Change Order provides for rock excavation on from station 2+00 to 3+00. Parf 2 of this Ghange Order provides for additional time taken to make the watermain connection at the casing, Part 3 of this Change Order provides for additional overdepth for 350 feet of watermain on this project, Part 4 of this Change Order provides for the installation of insulation on this project. This Change Order provides for all material and labor to complete this work and no additional compensation will be made to the Contractor for this work. Contract Unit Total No. Item Unit Quantify Price Amount CHANGE ORDER NO. 1 - PART 1 - ROCK EXCAVATION 1 LP,BOR INCLUDING MARK UP LS 1 $4,985.25 $4,985.25 2 FOREMAN PICKUP W/TOOLS HR 10 $10,00 $100.00 3 CAT 349 HR 10 S 150.00 $1,500.00 4 VOLV0120 HR 10 $75.00 $750.OD 5 CAT Db HR 10 $60.00 $600.00 6 349 RIPPER WEEKLY 1 $635.00 $635.00 7 MOBILIZATION LS 1 $500.00 $500.00 8 RIPPER TOOTH EA 1 $230,00 $230.00 9 E9UIPMENT 15%MARK UP LS 1 $612.7b $612.75 TOTAL CHANGE ORDER NO. 1 -PART 1 - ROCK EXCAVATION $9,913.00 CHANGE ORDER NO. 1 - PART 2-CONNECTION AT RCP CASING 10 LABOR INCLUDING MARK UP LS 1 $991.30 $991.30 11 FOREMAN PICKUP W/TOOLS HR 2 $10.00 $20,00 12 CAT 349 HR 2 $150.00 $300,00 13 VOLV0120 HR 2 $75.00 $150,00 14 EQUIPMENT 15%MARK UP LS 1 $70.50 570.50 TOTAL CHANGE ORDER NO. 1 - PART 2-CONNECTION AT RCP CASING $1,531.80 CHANGE ORDER NO. 1 - PART 3-ADDITIONAL OVERDEPTH 15 LABOR INCLUDWG MARK UP LS 1 $495.65 5495.65 16 FOREMAN PICKUP W/TOOLS HR 1 510.00 $10,00 17 CAT 349 HR 1 $150.00 S150.00 18 VOLV0120 HR 1 $75.00 $75,00 19 CAT D6 HR 1 $60.00 ' $60.00 20 EQUIPMENT 15%MARK UP LS 1 $44.25 $44.25 TOTAL CHANGE ORDER NO. 1 - PART 3-ADDITIaNAL OVERDEPTH $834.90 CHANGE ORDER NO. 1 - PART 4- INSULATION 21 LABOR INCLUDING MARK UP LS 1 5571.55 S571.55 22 FOREMAN PICKUP W/TOOLS HR 1 $10.00 $10.00 23 CAT 349 HR 2 $150.00 $300.00 193803373CHOI.xlsm Contract Unit Total No. Item Unit 9uantity Price Amount 24 SHEEPSFOOT HR 2 $35.00 570.00 25 EQUIPMENT 15%MARK UP LS 1 $57.00 S57.00 26 2"X 4'X 8'INSULATION EA 11 $28.37 5312.07 27 MATERIAL 15%MARK UP LS 1 $46.81 $46.81 TOTAL CHANGE ORDER NO. 1 - PART 4- INSULATION $1,367.43 TOTAL CHANGE ORDER NO. 1 -PART 1 -ROCK EXCAVATION $9,913.00 TOTAL CHANGE ORDER NO. 1 -PART 2-CONNECTION AT RCP CASING $1,531.80 TOTAL CHANGE ORDER NO. 1 -PART 3-ADDITIONAL OVERDEPTH $834,90 TOTAL CHANGE ORDER NO. 1 -PART 4-INSULATION 51,367.43 TOTAL CHANGE ORDER NO. 1 $13,647.13 . } I . - .- . . ' .. - � -T '- - T . ' ' - . _ � . . . � . - � � . . 1 � � . . J . _ I ` . , . I . . . . f U I I - , , � L, • 1 I _ ' I � ' - -t I.I I�. . . I ' . , J -I ' _. • ! -- I. - ._ ti . — — .� .� . � . ' , 193R033TCHOLxIsm Original Contract Amount $150,737,50 Previous Change Orders $0,00 This Change Order $13,647.13 Revised Contract Amount (including this change order) $164,384.63 CHANGE IN CONTRACT TIMES Original Contract Times; Substantial Completion (days or date): Ready for final Payment (days or date); Increase of this Change Order: Substantial Completion (days or date); Ready for final Payment(days or date): Contract Time with all approved Change Orders; Substantial Completion (days or date); Ready for final Payment (days or date): Recommended for Approval by: STANTEC Date: � � � �t /� �� - Appr ed by Contractor; Approved by Owner: MINGER CONSTRUCTION CO. CITY OF COTfAGE GROVE �'/�/�6 Date Date cc: Owner Contractor Bonding Company Stantec f- 4 . 7 ' � � � . ' �. � • � . 193803373CH01.xlsm