23A - AMEND CONTRACT FOR PARK LOT IMPROVEMENTS

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REQUEST FOR COUNCIL ACTION CITY COUNCIL MEETING DATE: MARCH 17, 2020 TITLE: AMEND THE CONSTRUCTION CONTRACT WITH HARDY & HARPER, INC. BY $62,499, FOR A NEW CONTRACT TOTAL AMOUNT OF $295,099, TO CONSTRUCT THE THORNTON PARK PARKING LOT IMPROVEMENTS WITH NO CHANGE TO THE ESTIMATED TOTAL PROJECT COST OF $320,000 (PROJECT NO. 18-7530) CLERK OF COUNCIL USE ONLY: APPROVED ❑ As Recommended ❑ As Amended ❑ Ordinance on 1" Reading ❑ Ordinance on 2i1 Reading ❑ Implementing Resolution ❑ Set Public Hearing For_ CONTINUED TO /s/Kristine Ridge FILE NUMBER CITY MANAGER RECOMMENDED ACTION 1. Authorize the City Manager to amend the construction contract with Hardy & Harper, Inc. via change order, by an increase of $62,499, resulting in a revised construction contract total of $295,099. 2. Approve a revised Project Cost Analysis authorizing the reclassification of the approved project contingency of $23,260 and reducing project administration, testing, and inspection costs in the amount of $39,239 for a net zero change in the original approved Community Development Block Grant (CDBG) project funding of $320,000. DISCUSSION The existing Thornton Park parking lot (Exhibit 1), servicing the park and sports fields, is in need of renovation and has been identified as a high priority facility in need of rehabilitation. The scope of work includes removing and replacing failed asphalt pavement, damaged concrete curb and gutter, concrete curb ramps, and painting stripes and markings. The project was included in the City Council -approved Capital Improvement Program for Fiscal Year 2017-18. On June 18, 2019, the City Manager authorized a construction contract with Hardy & Harper, Inc. in the amount of $232,600 for construction of the Thornton Park Parking Lot Improvements Project (Exhibit 2). During removal of the pavement, moisture intrusion into the subsoil was discovered, which has caused the subsoil to become unstable. After considering several options to address the moisture intrusion, the least costly option that would yield permanent, long-term benefits was to over -excavate, remove undesirable subgrade, and perform cement subsoil treatment. This unforeseen work is not a part of the original construction contract. Therefore, staff recommends reclassification of the contract funds through approval of a contract change order to accommodate the extra costs related to mitigating the effects of the moisture intrusion in the subsoil. The table 23A-1