HomeMy WebLinkAbout23A - PROJ - STREETLIGHTS FIRST ST BRIDGEREQUEST FOR
COUNCIL ACTION
CITY COUNCIL MEETING DATE:
JUNE 3, 2013
TITLE:
CLERK OF COUNCIL USE ONLY:
APPROVED
CONTRACT INCREASE TO ADD ? As Recommended
STREETLIGHTS TO FIRST STREET ? As Amended
BRIDGE REPLACEMENT OVER THE El Ordinance on 1St Reading
? Ordinance on 2"d Reading
SANTA ANA RIVER (PROJECT NO. ? Implementing Resolution
061723) ? Set Public Hearing For_
/ CONTINUED TO
FILE NUMBER
RECOMMENDED ACTION
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.
23A-1
Contract Increase for First Street Bridge Replacement
June 3, 2013
Page 2
Staff is recommending using these grant funds to complete two additional improvements: (1)
Install streetlights and required appurtenances, including upgrading the lamps to energy
efficient LED lamps, which will provide significant annual savings to the City; and (2) install a
planter with vines along the concrete masonry wall located at the southwest corner of the
bridge, which will help suppress graffiti.
At the time the bridge was under design, streetlights were not part of the scope due to funding
constraints and, therefore, the construction contract did not include streetlights. However, the
positive financial position of the project would allow completing the streetlight installation, since
this project has designated grant funds still available. Staff has designed structural
reinforcements for each streetlight location on the bridge, and the cost of those structural
retrofits can be covered within the existing contract. However, the cost to install the 20
streetlight standards, conduit and wiring, lamps, controller, and the site improvements will
exceed the current Council-approved contract. Since these improvements are eligible for grant
reimbursement, it is recommended that the contract be increased by $250,000 to complete
these project enhancements and close out the project.
ENVIRONMENTAL IMPACT
This is no environmental impact associated with this action.
FISCAL IMPACT
Funds for the contract increase of $250,000 are available in the Measure M Street
Construction Fund (Account 03217660-66220) and the Select Construction Fund (Account
05917660-66220).
Rau Godinez II
Executive Director
Public Works Agency
RG:WG
APPROVED AS TO FUNDS AND ACCOUNTS:
Francisco Gutierrez
Executive Director
Finance & Management Services Agency --r
23A-2