LOWER SANTA ANA RIVER MARSH (SARM) DREDGING
Orange County, CA
This project removed sand, silt, and clay from the Santa Ana River Marsh and wetland habitat. CJW Construction restored the basin to original design elevations, re-contoured the canals and channels and repaired the canal walls. CJW utilized our Sand Cat Dredge, a hydraulic booster pump unit to complete the work, as well as floating excavators, long-reach excavators, barges, steel-roads, installed sheet piles, and temporary bridges. CJW dewatered some areas to gather conventionally yet flooded other areas to hydraulically dredge. Other items utilized in the execution of this project included a crane, zodiac inflatable tugboat, separate floating hydraulic dredge, and over a mile of cable/anchors.
The meandering canal shaped project cut was located on the inland side of Pacific Coast Highway while most of the discharge sediment was pumped over land and into the ocean, some down-shore and some offshore (discharge pipe crossing under the freeway). CJW Construction restored the basin to original design elevations, re-contoured the canals and channels and repaired canal walls while working near sensitive habitat and endangered species. The cut was removed from an area bordered by homes on one side with the remaining perimeter adjacent to environmentally sensitive habitat. Cut material originated from a marsh condition needing shallow draft dredge equipment, boosters and specialized removal methods. Since material type often changed, cut was gathered via excavators (floating excavators) or cutterhead dredge and either dewatered and trucked or hydraulically pumped to the Ocean, either as beach nourishment or deep-ocean fill.
The meandering canal shaped project cut was located on the inland side of Pacific Coast Highway while most of the discharge sediment was pumped over land and into the ocean, some down-shore and some offshore (discharge pipe crossing under the freeway). CJW Construction restored the basin to original design elevations, re-contoured the canals and channels and repaired canal walls while working near sensitive habitat and endangered species. The cut was removed from an area bordered by homes on one side with the remaining perimeter adjacent to environmentally sensitive habitat. Cut material originated from a marsh condition needing shallow draft dredge equipment, boosters and specialized removal methods. Since material type often changed, cut was gathered via excavators (floating excavators) or cutterhead dredge and either dewatered and trucked or hydraulically pumped to the Ocean, either as beach nourishment or deep-ocean fill.
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