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CHANGE ORDER NO. THREE TO CONTRACT K-1516-122 BY AND BETWEEN THE NORMAN UTILITIES AUTHORITY AND URBAN CONTRACTORS, L.L.C., DECREASING THE CONTRACT AMOUNT BY $56,989 FOR A REVISED CONTRACT PRICE OF $2,124,371 FOR THE FYE 2014 SEWER MAINTENANCE PROJECT, PHASE 1 AND FINAL ACCEPTANCE OF THE PROJECT.
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BACKGROUND: In 2001, the citizens of Norman approved a five dollar per month Sewer Maintenance Rate to provide for the systematic rehabilitation or replacement of aged and deteriorated neighborhood sewer lines throughout our wastewater collection system. On April 12, 2016, the Norman Utilities Authority (NUA) approved Contract K-1516-122 with Urban Contractors, LLC (Urban) in the amount of $1,784,680 to replace sewer lines and manholes for the Sewer Maintenance Project FYE 2014, Phase 1 (WW0202). The Notice to Proceed was issued April 15, 2016, and construction began April 25, 2016.
On July 12, 2016, the NUA approved Change Order No. 1 (CO1) increasing the contract amount by $128,190 to $1,912,870. CO1 provided for supplementary pipe-bursting along Boyd Street.
On May 23, 2017, the NUA approved Change Order No. 2 (CO2) increasing the contract amount by $268,490 to $2,181,360. CO2 provided for supplementary pipe-bursting along Oklahoma Avenue and in the Colonial Estates Neighborhood.
DISCUSSION: All work was complete June 16, 2017, and the contract is now satisfied. Proposed Final Change Order Number 3 (CO3) is the reconciliation of bid quantities to final quantities per Attachment No. 1 to proposed CO3. The net change is a decrease of $56,989 from $2,181,360 to $2,124,371. Based on actual conditions encountered in the field, the work performed and the final quantities were adjusted. The major cost differences include:
• Open Trench Pipe Replacement: Bid Item 5 for the original and change order work resulted in a net decrease of 216 feet of open trench pipe replacement with a cost decrease of $39,900;
• Pipe Bursting Quantities: Bid Item 6 resulted in a decrease of 1,810 feet of 18” pipe-bursting with a cost decrease of $157,470 while Bid Items 7 through 10 resulted in a cumulative increase of 2,809 feet of 8” to 12” pipe-bursting with a cost increase of $136,695 for a net decrease of $20,775.
• Service Line Reconnections: Bid Items 16 and 17 resulted in an increase of 50 service reconnections for a cost increase of $12,140.
RECOMMENDATION: Staff recommends the NUA approve Change Order No. 3 with Urban Contractors, L.L.C., decreasing the contract amount by $56,989 to $2,124,371; accept Sewer Maintenance Project FYE 2014, Phase 1, and authorize final payment in the amount of $10,621.86.