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Home My WebLink About11- Change Order 3 with Duneman for College & Huffine PathwayPROJECT TITLE: College & Huffine Shared-Use Pathway — Bozeman (a CTEP proiect)__- RPA PROJECT NO.: 08506,000 CTEP PROJECT NO.: STPE 1299(22) CHANGE ORDER NUMBER: DATE {JF CHANGE ORDER, CONTRACT DATE: September 3, 201 (Notice to Proceed: October 4, 201 Project underwent a Winter Shutdown. As of July 10, 201 the Contractor has been charged with 59 days 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 ba accompanied byan itemized cost breakdown, i.u: unit prices, negotiated lump sum prices, negotiated cost plus basis. Note all cost plus pricing to be supported by documentation which supports the cost of that Item Description Quantity Units Unit Price Amount Basis of Unit Price Number 1 Muck Excavation of rotting 60 CY $4.50 +$27000 Negotiated unit price under stumps, muck and deleterious Change Order No, I for material, Sta. 27+00 to Muck Excavation 27+90, Alignment "C" 2 Import/place pitrun cobble 60 CY $18,00 +$1,080.00 Negotiated unit price under backfill for Item 1 Change Order No. 1 for replacement material Muck Excavation re lacement 3 Geotextile separation 240 SY $5,00 +$1,200.00 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 +$12,400.00 Negotiated excluding road approaches and Item No. 1 JUSTIFICATION OF CHANGE ORDER: Items 1.2 and 8: |n preparing the path foundation along Alignment ^C"from8bsUum27+O0tn27+9O.rot n8tneeobumpa and organic material were encountered requiring muck excavation to build a suitable path base. Genteuti|eGnn|onfabric was used to wrap the rock and gravel backfill to provide a firm foundation. |hynnu 4 and 5� The claymmbgrade material encountered is very susceptible to moisture; when wet making the material unworkable tn obtain foundation preparation and compaction. Wet, lasting spring weather compounded the issue of working the nubgnado. In order to limit subexcavation of the material and backfill replacement (limit project oosUandto expedite the process of working with soft, yielding subgrade, the Geolon Geotextile fabric was installed, Thegenboxtila was deemed the appropriate solution as the Owner, Engineer and Contractor are all concerned about project de|ivery (contract time), The installation allowed the work to proceed on the foundation material that would have required Change Order Page 1 aubuxcavationand replacement oeUheo|harnaUYn,aLooububsntial|engthieromoumtofinstoU1inaandcos if this Item was not used, SUMMARY OF COST AND TIME: COST BREAKDOWN: TIME BREAKDOWN: ORIGINAL CONTRACT PRICE: $439,719.15 START C)FCONSTRUCTION: October 4, 2101 PREVIOUS CHANGE ORDER AMOUNT: - CALENDAR DAYS BYCONTRACT: CURRENT CONTRACT PRICE: $441,025,65 CONTRACT COMPLETION DATE: As of JuIV 10, 201 the Contractor is 9 days over the 50 day.,contract time, Substantial Completion is estimated at July 11 201 1 AMOUNT OF THIS CHANGE ORDER: — 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 ea set forth in the contract documents shall be(unchanged by !calendar days. The date for completion of all work will be , on expected Substantial Completion of Tuly 15, 201 With the additional contract days aranted herein (to 55 calendar days total), the Contractor is still subiect to liauidated damaaes as substantial nompletionis oroiected tobeetG4 calendar days.mQdaysbevodconhacthme.Asmmmamofthm5 additional contract days to be granted herein follows 5 days hosmbexoavote backfill and install ggotexUVe as described herohn. 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 ' ' a[andNhe surety further agree that on or after execution of this consent, the penalty of the applicable performance bonds or bonds is hereby increased 0OY6uf the change order amount) and the penalty mf the applicable labor and material bond or bonds ia hereby increased by (18O96of the change order amount). COUNTERSIGNED BY MONTANA RESIDENT AGENT SURETY Seal (Engineer) Reoommen (Contractor) Accepted (Owner) Approved by: a Date � / Date Change Order Page 2 I F111PLAW I ROBERT PECCIA & ASSOCIATES REGARDING Change Order No. 3 TO: FIRM/AGEN'CY- 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 [ •♦ , Box 5653 I Change Order NO,3 825 CusIter Avenue :�7� 65 Eoss 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 $18.00/CY. A lesser quality geotextile to line the excavation is $1.25/SY. For the 1 square yard of area in a subexcavation process, the total estimated cost is approximately $17.00/SY for all materials (subexcavation, replacement and geotextile). By comparison, with this change order, the use of the more robust Geolon Geotextile, at $5,00/SY eliminated the subexcavation 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: tom @—rpa-hJn. om, Regards- Tom C. c: file F:\highways\ HELENA - CORPORATE OFFICF KALISPELL BUTTE •♦ , Box 5653 Ro Box 5100 Thomton Building 825 CusIter Avenue 102 ♦Cooperdlive Way, Suite 300 65 Eoss Broadway Helena, MT 59604 Kalispell, MT 599o3 Butte, MT 59701 (406) 44T5000 (406) 752-5025 (406) 533-6770 FAX (406) 447-5036 1/m/M. Off 11""' FAX (406) 752 5024 Wi 111 111 1 fi:i! II I FAX (406) 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 Cite 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 #3 in the about of +$22,495.00, for the College /Huffine 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 #3. 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 43 Commission Resolution 4330 Report compiled on. 7/19/2011 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 1 6th day o August 2010, authorize award of the bid for the construction of the College /Huffine 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, Duneman Construction, Belgrade, Montana, as contained in Change OrderNo. 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 I st day of August 201 0 ATT Stacy I city "0 -x l'Gl r