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i • • CITY COUNCIL MEETING DATE: JUNE 3, 2013 TITLE: CONTRACT INCREASE TO ADD STREETLIGHTS TO FIRST STREET BRIDGE REPLACEMENT OVER THE SANTA ANA RIVER (PROJECT NO. 061723) , „/ °) *Ii] IT, Iin14n�7��7s�i��[�7�1 CLERK OF COUNCIL USE ONLY: APPROVED 3i 02013 �✓j As Recommended ❑ As Amended ❑ Ordinance on 1s' Reading ❑ Ordinance on 2nd Reading ❑ Implementing Resolution ❑ Set Public Hearing For CONTINUED TO FILE NUMBER Increase the contract with Powell Constructors, Inc., for the construction of the First Street bridge replacement over the Santa Ana River by $250,000 for a total estimated contract amount of $8,065,000, and authorize the City Manager to execute change orders in an amount not to exceed the authorized contingency. DISCUSSION On March 21, 2011, the City Council awarded a construction contract for the First Street bridge replacement over the Santa Ana River to Powell Constructors, Inc., in the amount of $6,010,329 plus a contingency amount of $1,202,066, totaling $7,212,395. On January 17, 2012, the City Council approved an increase of $602,605 which raised the contract total to $7,815,000. The additional costs were related to a significant redesign of the bridge foundations that eliminated conflicts with interfering power lines, resulting from the inability of the utility company to de- energize and relocate its lines. The restriction of constructing the bridge one -half at a time and only during the dry season (six months), as determined by the Orange County Flood Control District, caused scheduling delays that also affected contract costs. Other extra costs were attributed to added enhancements to the bridge, including architectural details to the railings, erecting sound walls, and for general unforeseen underground conditions. Fortunately, due to unpredictability of the highly competitive construction market, the original construction bids were significantly lower than the engineer's cost estimate. That resulted in making additional grant funds available to the project for eligible scope expenditures. Even with major redesign efforts and cost increases to the project, approximately $500,000 in grant funding is still available for this bridge construction project.