3rd Street to Civic Center Drive

City or County Responsible for Project: 

City of Santa Ana

Award Category: 

Efficient and Sustainable Road and Bridge Preservation, Maintenance and Construction and Reconstruction Projects

Narrative Description Of Your Entry: 

The Bristol Street Improvements project was planned and designed to incorporate complete street concepts with storm drain quality features and implementation of Green Street technologies.  The City was awarded with a Bronze Certification from GreenRoads, which is a third party rating system that rewards roadway projects that exceed public expectations for environmental, economic, and social performance.  The improvements included widening of the street from 4 lanes to six lanes, with bus turnouts, raised median, class II bike lanes, and sound walls.  The project also brings native and drought tolerant landscaping that beautifies a fully developed urban area and requires no irrigation after establishment.  The project team selected a biofiltiration BMP for Bristol Street Improvements. A series of drought tolerant vegetated bio-swales were designed to capture and filter a 2 year storm. The swales did not only include run-off from the project foot print but also run-on from the whole drainage area boundary.  Storm drain run-off flows from adjoining neighborhood streets to the main arterial where a storm drain facility is proposed in the project.  The project includes a creative low impact development solution by incorporating a vegetated bio-swale in proposed parkways. The bio-swale will disconnect impervious areas, filter storm drain run-off, and contain flows from moderate rain storms. Additionally, the bio-swale will bring a native, organic and drought tolerant pre-development landscape theme to a fully built-out transportation corridor that will require no irrigation after establishment.

Submitted by: 

Ehab Elias


Assistant Engineer II, PE


City of Santa Ana


20 Civic Center Drive, M-36






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