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Home My WebLink AboutResolution 4330 Change Order 3 with Duneman for College Huffine Pathwayca COMMISSION RESOLUTION NO. 4330 A RESOLUTION OF THE CITY COMMISSION OF THE CITY OF BOZEMAN, MONTANA, APPROVING ALTERATION/MODIFICATION OF CONTRACT WITH DUNEMAN CONSTRUCTION, OF BELGRADE, MONTANA. WHEREAS, the City Commission did, on the 16th day of August 2010, authorize award of tbebid for the construction of the College /Huff ne Pathway to Duneman Construction, Belgrade, Montana; and WHEREAS, Section 7-5-4308, Montana Code Annotated, provides that any such alterations or modifications of the specifications and/or plans of the contract be made by resolution; and WHEREAS, it has become necessary in the prosecution of the work to make alterations or modifications to the specifications and/or plans of the contract. NOW, THEREFORE, BE IT RESOLVED by the City Commission of the City of Bozeman, Montana, that the proposed modifications and/or alterations to the contract between the City of Bozeman, a municipal corporation, and, Dunernan Construction, Belgrade, Montana, as contained in Change Order No. 3 attached hereto, are hereby approved; and the City Manager is hereby authorized and directed to execute the contract change order for and on behalf of the City; and the City Clerk is authorized and directed to attest such signature. PASSED AND APPROVED by the City Commission of the City of Bozeman, Montana, at a regular session thereof held on the 1st day of August 2011. 130 AT Sta6y City CI c 0 Je r'. a s PVIa, r r CHANGE ORDER PROJECT TITLE: RPA PROJECT NO.: 08506-000 CHANGE ORDER NUMBER: 03 CTEP PROJECT N{l: DATE 0FCHANGE ORDER: July 12,2011 CONTRACT DATE: September 3, 2010 (Notice to Proceed: October 4, 20 Proiect underwent a Winter Shutdown. As of July 10, 2011, the Contractor has been charged with 59 daVs in the current 50 day contract. This Change Order will provide additional working days as further described for the changing work. OWNER: City of Bozeman CONTRACTOR: Duneman Construction, Inc. Change orders must heaccompanied by an itemized cost breakdowm, i.e.: unit prices, negotiated lump sum prices, negotiated cost plus basis, Note all cost plus pricing tobe supported Uv documentation vvhichoupportaUhn000tofthot Item Description Quantity Units Unit Price Amount Basis of Unit Price Number I Muck Excavation of rotting 60 CY $4.50 +$270.00 Negotiated unit price under stumps, muck and deleterious Change Order No. I for material, Sta. 27+00 to Muck Excavation 27+90, Ali2nment "C" 2 Import/place pitrun cobble 60 CY $18.00 +$1 Negotiated unit price under backfill for Item 1 Change Order No. 1 for replacement material Muck Excavation 3 Geotextile separation 240 SY $5.00 +$1,20000 Negotiated fabric/Geolon High Strength 4 Subgrade separation 1,509 SY $5.00 +$7,545,00 Negotiated geotextile to eliminate additional subexcavation, Alignment "B", Sta. 31+87 to 5 Same as Item 4, Alignment 2,480 SY $5.00 +$1,2,400.00 Negotiated excluding road approaches and Item No. 1 JUSTIFICATION {JFCHANGE ORDER: Items 1,2 and 8: In preparing the path foundation along Alignment "C" from Station 27+00 to 27+90, rotting tree stumps and organic material were encountered requiring muck excavation to build a suitable path base, GeutexU|eGeo|onfabric was used to wrap the rock and grave[ backfill to provide a firm foundation. items 4 and 5: The clay subgrade material encountered is very susceptible to moisture; when wet making the material unworkable to obtain foundation preparation and compaction. Wet, lasting spring weather compounded the issue of working the subgrmdo. |n order b3 limit Sobgwcavation of the material and baokMU replacement (limit project omodondho expedite the process of working with soft, yielding subgrade, the Geolon Geotextile fabric was installed. The geotexti[e was deemed the appropriate solution as the Owner, Engineer and Contractor are all concerned about project delivery (contract time). The installation allowed the work to proceed on the foundation material that would have required Change Order Page I subexcavation and replacement as the alternative, at a substantial lengthier amount of install time and cost if this Item was not used. SUMMARY OF COST AND TIME: COST BREAKDOWN: TIME BREAKDOWN: ORIGINAL CONTRACT PRICE: $439,719.15_ START OF CONSTRUCTION: October 4, 2010 PREVIOUS CHANGE ORDER AMOUNT. +$1,306.50 - CALENDAR DAYS BY CONTRACT: 50 (C.O. No. 1) CURRENT CONTRACT PRICE: $441,025.65 CONTRACT COMPLETION DATE: As of July 10, 2011, the Contractor is 9 days over the 50 day contract time. Substantial Completion is estimated at July 15, 2011. AMOUNT OF THIS CHANGE ORDER: +22,495.00 NUMBER OF DAYS GRANTED THIS CHANGE ORDER: 5 NEW CONTRACT PRICE: $463,520,65, NEW CONTRACT COMPLETION DATE: At 55 Calendar Days The completion date as set forth in the contract documents shall be (unchanged, increased, decreased) by 5 calendar days. The date for completion of all work will be on expected Substantial Completion of ,July 15, 2011. With the additional contract days aranted herein (to 55 calendar days total), the Contractor is still sublect to liquidated damages as substantial completion is oroiected to be at 64 calendar days, or 9 days beyond contract time. A summary of the 5 additional contract days to be granted herein follows. 5 days to subexcavate, backfill and install geotextile as described herein. In addition, the Contractor installed numerous irrigation sleeves along MSU frontage and at Technology Boulevard at the request of those owners for future irrigation runs under the path. The Contractor provided labor for install which removed some labor forces from project work. APPROVALS: Surety consent is required if the net increase of this change order and all previous change orders exceeds 20% of the original contract amount. Note: The following Surety Consent is NA as the sum of Change Orders 1, 2 and 3 does not exceed 20% of the original contract amount. SURETY CONSENT The surety hereby consents to the aforementioned contract change order and agrees that its bond or bonds shall apply and they extend to the contract as thereby modified or amended per this change order. The principal and the surety further agree that on or after execution of this consent, the penalty of the applicable performance bonds or bonds is hereby increased by $ (100% of the change order amount) and the penalty of the applicable labor and material bond or bonds is hereby increased by $ (100% of the change order amount). COUNTERSIGNED BY MONTANA RESIDENT AGENT SURETY (Engineer) Recommen (Contractor) Accepted (Owner) Approved by: By: 10 Date 13 / Date I / ( /aOff Date Change Order Page 2 ROBERT PECCIA & ASSOCIATES TO: FIRMIAGENCY: ADDRESS: CITY/STATE/ZIP-. TELEPHONE. Mr. Ron Dingman Director of Parks and Recreation City of Bozeman PO Box 1230 Bozeman, MT 59771 (406) 582 - 3222 Transmitted are the following items: Item Number Copies D scription R0. Box 5663 1 Change Order No.3 82 5 Custer Avenue 102 Cooperative Way, Suite 300 65 East Broadway Ron- Enclosed is Change Order No. 3. If you concur, please have authorized (signed) and dated by the City where noted on the last page. In summary, the installation of geotextile separation fabric has allowed the project delivery to be expedited in comparison to if the subgrade material were removed (subexcavated) and replaced with gravel. The use of geotextile not only increased the labor output that the Contractor could achieve, in comparison to a subexcavation process, but is a less costly process, As an example, a square yard (SY) of subexcavation, at 2 feet deep, amounts to approximately 0.7 cubic yards (CY) of subexcavation. Subexcavation costs $4,50/CY and the replacement gravel for this process is $1 8.00/CY. A lesser quality geotextile to line the excavation is $1 .25/SY. For the 1 square yard of area in a sublexcavation process, the total estimated cost is approximately $17.00/SY for all materials (subexcavation, replacement and geotel By comparison, with this change order, the use of the more robust Geolon Geotextile, at $5.00/SY eliminated the sublexcavation process, and had an install cost of $5.00/SY, or approximately 1/3 of the subexcavation alternative cost, If you have any further questions on this in addition to our previous coordination, please feel free to contact me at (406) 447-5000 or email: Regards- Tom C. c: file F: \highways\08506 ozerrian Col legeHuffinekCONSTRUCTION I NkCha ngei_0rders\STPE1 299 o3 rism ittal, doe HIELENA - CORPORAIE OFFICE KALISPELL BUTTE R0. Box 5663 P.0, Box 6100 Thornion Building 82 5 Custer Avenue 102 Cooperative Way, Suite 300 65 East Broadway Helena, MT 59604 Kalispell, MT 59903 Bulte, MIT 59701 (406) 447�5000 (406) 752-5025 (406) 533�6770 �AX (406) 44 7.5036 I l 1 �lii VIN . .... . .. ..... FAX (406) 752-5024 iii, iiiiiiiiiiiii iiiiiiiiiiiiii 0:00, 1 FAX (4 06) 533- 6830 Commission Memorandum REPORT TO: Honorable Mayor and City Commission FROM: Dustin Johnson, Project Engineer Ron Dingman, Parks and Recreation Director SUBJECT: Approve Resolution 4330 authorizing the City Manager to sign Change Order ##3 for the use of geotextile separation fabric due to unfavorable soil conditions for the College /Huffne Community Transportation Enhancement Program (CTEP) Pathway project. MEETING DATE: August 1, 2011 AGENDA ITEM TYPE: Consent Agenda RECOMMENDATION: Approve Resolution 4330 authorizing the City Manager to sign Change Order 43 in the about of +$22,495.00, for the College/Huffne Pathway CTEP Pathway project. BACKGROUND: The College /Huffine Pathway originally started construction in the fall of 2011. When the weather became too prohibitive to work last winter, there was a winter shut down that temporarily halted the work for the season. When construction started back up this spring there were areas where the pathway was to be constructed that had unsuitable soils for paving the pathway and could not meet specifications. In one area rotting tree stumps were discovered and needed to be excavated and clean pit run had to be imported in their place. Due to the wet weather of the construction season this spring the contractor and engineer decided to use geotextile fabric instead of waiting for the material to adequately dry for construction. Since this project is funded through CTEP and is on a very tight schedule, it was deemed appropriate to take these measures to assure the project was completed on schedule. A total of 60 cubic yards of material needed to be removed and replaced, and 4,229 square yards of geotextile fabric was used. A complete break- down of quantities and unit prices has been provided by the engineer and the contractor in the attached Change Order 93. UNRESOLVED ISSUES: None at this time. ALTERNATIVES: As suggested by the City Commission. FISCAL EFFECTS: This project is funded through the CTEP program. If this project does not finish on schedule the City and the contractor potentially face reduced funding from CTEP due to the reporting requirements and the commitments outlined in the original contract. The use of geotextile fabric, for the wetter portions of the pathway, have allowed faster construction, since the contractor does not have to wait for the material to dry out. This change order increases the contract price by $22,495.00. The new total contract price is $463,520.65. Attachments: Change Order #3 Commission Resolution 4330 Report compiled on: 7/19/2011