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Planning Environmental Reports

Title: Warner Avenue Bridge Preventive Maintenance Project

Applicant: City of Huntington Beach

Location: Huntington Beach, CA- Warner Ave.

Report Summary

Draft Mitigated Negative Declaration No. 12-006 analyzes the potential environmental impacts associated with a proposal to perform maintenance activities on the existing Warner Avenue Bridge that are intended to restore the integrity of its original design. The Warner Avenue Bridge was constructed in 1981. It is a three-span pre-stressed voided slab bridge with four traffic lanes and a pedestrian sidewalk along the north side. Parts of the bridge have deteriorated due to normal wear from vehicular traffic and from tidal flux of the estuarine ecosystem settling during the last three decades. The bridge concrete barriers are cracked and spalled (pieces of concrete have broken off) with exposed internal reinforcing that has noticeably corroded. The bridge columns and bent caps (tops of the bridge supports) have unsound concrete. The asphalt-concrete (AC) overlay on the bridge deck is also cracked. Rock slope protection is missing from the channel embankments near the bridge abutments, resulting in the erosion of the embankment and weakening of the bridge substructure.

The project site is the existing Warner Avenue bridge, spanning approximately 110 linear feet over the Bolsa Chica channel, which connects the waters of Huntington Harbor with Upper Bolsa Bay. The project rehabilitation area includes support structures beneath the roadway surface and rock-slope protection extending into the Bolsa Chica Channel beneath the bride. The property is not designated as a hazardous waste property on any of the lists of such sites pursuant to Section 65962.5 of the Government Code.

It should also be noted that existing gravity sewer infrastructure within the Warner Avenue right-of-way will be undergoing a rehabilitation which includes demolition and new construction as part of the City's Warner Avenue Sewer Lift Station Project. Portions of the gravity sewer infrastructure are connected to the Warner Bridge. Improvements associated with the proposed Warner Bridge project will be constructed in coordination with this separate gravity sewer rehabilitation project. The two projects may have coinciding construction schedules but will be subject to separate environmental and Coastal Commission review and approvals.

Project Status: In Progress

Project Planner: Hayden Beckman

Last Updated: May 13, 2015


  1. Mitigated Negative Declaration 12-006

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City of Huntington Beach
Planning Division
2000 Main Street
Huntington Beach, CA
Phone: (714) 536-5271
Fax: (714) 374-1648

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