> BROWSE SOLUTIONS ABOUT PRESS CAREERS SEARCH GET IN TOUCH ENVIRONMENT PERMITTING, BIOLOGICAL ASSESSMENTS, AND MONITORING Encinitas, CA United States SAN ELIJO LAGOON RESTORATION SHARE PROJECT OWNER San Elijo Lagoon Conservancy SERVICES RENDERED Environmental restoration Habitat restoration Site monitoring Shoreline modeling Hydrodynamic modeling San Elijo Lagoon, one of the few remaining coastal wetlands in San Diego County, provides vital habitats for resident and migratory wildlife and sensitive, threatened, and endangered plants. The area also offers recreational opportunities to the surrounding community. Unfortunately, 20th century economic development took its toll on the lagoon and its ecosystems. The urbanization of the lagoon’s watershed introduced sediment, nutrients, and bacteria to be introduced into the lagoon; it also demanded the addition of transportation infrastructure, and disposal of sewage sludge. All contributions negatively affected the lagoon. Construction of US Highway 101, Interstate 5, and a railroad line through the lagoon has resulted in constricted tidal and storm flows. Sewage sludge was disposed of in the lagoon contributing high concentrations of nutrients and bacteria. Upstream inputs led to the lagoon being 303D listed by the Water Board for sediment, bacteria, and nutrients. The modification of the original full tidal system, along with direct effects of urbanization upstream has led to degraded habitats and impaired water quality. Moffatt & Nichol performed all preliminary engineering, led the team for environmental review and permitting, and completed final engineering. We provided lagoon modeling to address hydrodynamics, sedimentation, and water quality. We also providing shoreline modeling and analyzed surfing for impacts of sand placement. Our team monitors the site now during construction and is preparing a five-year post-construction monitoring plan. ‍ ‍ YOU MIGHT ALSO LIKE... JEFFERSON AND PLAQUEMINES PARISH, LA LARGE SCALE BARATARIA MARSH CREATION: UPPER BARATARIA COMPONENT EXPLORE PROJECT BAYOU LA BATRE, AL LIGHTNING POINT LIVING SHORELINE AND MANAGED ACCESS EXPLORE PROJECT CREATIVE PEOPLE, PRACTICAL SOLUTIONS.® ABOUT HISTORY PRESS CAREERS SMALL BUSINESSES WATER PORTS TRANSPORTATION ENVIRONMENT COMMERCIAL +1 (562) 590-6500 INQUIRY@MOFFATTNICHOL.COM FOLLOW US ON SOCIAL MEDIA WORDS AND IMAGES © 2021 MOFFATT & NICHOL, ALL RIGHTS RESERVED TERMS OF USEPRIVACY POLICY