EDINGER AVENUE BRIDGE REPLACEMENT

Client

Orange County Public Works (OCPW)​

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Location

Hunting Beach, CA; Seal Beach, CA

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Status

Completed (August 2019)

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Construction Cost

$17 Million

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Stakeholders

OCPW, USACE, Coastal Commission,

USDFW, CRWQCB

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Description

The existing 15-pile span timber bridge was removed and replaced with a 4-pile span precast concrete bridge. The replacement bridge is approximately 5.9 feet higher than the existing bridge, providing clearance for project flood water elevations in the Bolsa Chica Channel. The length of the bridge increased from 300 feet to 340 feet to accommodate this change in bridge profile.

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Services

PreScience provided construction management and inspection services to the County of Orange Public Works for the Edinger Avenue Bridge replacement over Bolsa Chica Channel Project.

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Challenges

The nature of the ocean provided many challenges to this project, largely due to tidal fluctuations of 10 to 15 feet of corrosive salt water. This required stage construction, utilizing a trestle. In doing so, we were careful to navigate the construction process to protect and remain in compliance of several marine, wildlife, and environmental permits. In addition to all of these challenges, we worked hard to maintained traffic on the existing bridge, as well as keep up a positive relationship with the adjacent neighborhood.

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Awards

This project was awarded the following:

• CMAA Southern California Chapter 2020 Project Achievement Award

• APWA 2019 Regional Transportation Project of the Year Award

• American Society of Civil Engineers (ASCE - Orange County) 2019 Outstanding Bridge Project Award

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