Oxford Basin

Oxford Basin (also known as Oxford Lagoon or Marina Sanctuary) is a 10.7-acre (43, 000 m2) constructed wetland and wildlife conservation area in the northwest corner of Marina del Rey, California, located between Washington Boulevard and Admiralty Way. The basin is a remnant of the historic Ballona Valley ecosystem and one of the last remaining intertidal mud flat habitats in Los Angeles County. Oxford Basin collects urban runoff from a 600-acre (2.4 km2) watershed and remediates it in part through the use of bioswales, low-flow storm drain diversions, native landscaping and a circulation berm. Other inputs to the lagoon are groundwater and tidal inflows from Marina del Rey Harbor. Oxford Basin is ringed by a 0.7-mile (1.1 km) nature walk loop that runs parallel to the Coastal Bike Trail on the Oxford Avenue side. Observation decks offer opportunities for wildlife viewing; the lagoon is host to between 50 and 100 species of birds. The Basin is "currently favored" for wading bird roosting and nesting because it "does not have significant human-bird conflicts."

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