On April 9, 2019, the City Council awarded a contract to Onyx Paving Company, Inc. (Onyx) in the amount of $1,853,000 for the FY 2018-19 Street Improvements Project. The Council also provided authorization for the City Manager to approve change orders up to a cumulative amount of $92,650, or 5% of the contract amount. Construction began on May 6, 2019, and was substantially complete on August 13, 2019.
Prior to the start of construction, staff discovered a damaged section and eroded slurry seal layer on the westbound lane of Grand Avenue west of the Grand Avenue Park. Staff contacted Onyx to request a cost estimate for the needed slurry repair for inclusion to the annual slurry project. On May 21, 2019, the City Manager approved Change Order No. 1 in the total amount of $5,625 to repair approximately 22,500 square feet of the damaged slurry area on Grand Avenue.
During the final assessment of the pavement conditions within the project area, staff deployed value engineering judgment and modified the treatment application and refined the construction plans to reduce overall project costs. This resulted in the grinding and overlaying of the completed width of the street, instead of repairing the prior-selected deteriorated areas. The full-width asphalt grind and overlay treatment improved the structural section of the pavement, the aesthetics of the street surface, and furthermore reduced the overall cost of the project.
At the completion of the work, quantities estimated in the bid documents had to be adjusted to reflect the actual field measurements. Change Order No. 2 includes a complete list of all quantity adjustments, as well as additional items, all of which result in the final contract amount as follows:
|Change Order No. 1
|Change Order No. 2