Learn more about the research and development of the Topanga Lagoon Restoration project at the following resources below:
• Partner/Landowner Websites
• Presentations
• Media Coverage
• Research and Publications
Partner/Landowner Websites
Learn more about project partners and landowners via the buttons below.
Presentations
- 2023 Public Information Meeting (6/17/23)
- View the recording here: https://youtu.be/GGHO9ig66n4
- View meeting minutes coming soon.
- View the presentation from the meeting here.
- 2022 Environmental Impact Report Scoping Meeting (6/11/22)
- View the recording here: https://youtu.be/0CUekunNVRk
- View meeting minutes here.
- View the presentation from the meeting here.
- 2021 Public Workshop (2/27/21):
- 2020 Public Workshop (2/29/20):
Media Coverage
A sampling of recent media coverage is below. Online searches will provide over 20 years of project coverage!
- Topanga Lagoon Restoration Boosted by $4.9M State Grant (Malibu Patch, 3/16/23): https://patch.com/california/malibu/topanga-lagoon-restoration-boosted-4-9m-state-grant
- Where CA’s Remarkably Wet Year is Bringing Welcome Recovery (La Times, 4/1/23): https://www.latimes.com/california/story/2023-04-01/heres-where-californias-remarkably-wet-year-is-bringing-welcome-recovery
- CA Wildlife Conservation Board Funds 25 Environmental Improvement Projects (Sierra Sun Times 2/21/2023): https://goldrushcam.com/sierrasuntimes/index.php/news/local-news/43921-california-wildlife-conservation-board-funds-25-environmental-improvement-and-acquisition-projects-includes-11-million-grant-to-save-the-redwoods-league
- Topanga Lagoon Restoration Identified as a Key Project in 2022 Department of Beaches & Harbors Sustainability Roadmap (April 2023 Beach Commission Meeting Agenda): https://file.lacounty.gov/SDSInter/dbh/docs/1135878_2023BeachCommissionAgendaAPR.pdf
Research & Publications
Recent research associated with the Topanga Lagoon restoration project and onsite resources are listed below by category with the most recent publications listed first.
Categories include:
Project Specific Environmental Documents
Topanga Ranch Motel Condition Assessment and Conceptual Design for Rehabilitation
Wiss, Janney, Elstner Associates, Inc. 2019 Topanga Ranch Motel Condition Assessment and Conceptual Design for Rehabilitation. Prepared for James Newland, CDPR.
Topanga Creek Restoration: Rodeo Berm Removal
Dagit, R. 2009. Topanga Creek Restoration: Rodeo Berm Removal. Urban Coast Vol 1 (1):37-41 November 2009.
Rodeo Grounds Berm Removal and Restoration Project Mitigated Negative Declaration
Rodeo Grounds Berm Removal and Restoration Project Mitigated Negative Declaration. January 2006. Prepared for CA Department of Parks and Recreation by Envicom, Corp and RCD of the Santa Monica Mountains.
Hydrogeologic Study, Lower Topanga Creek Watershed, Los Angeles County, California
GeoPentech, 2006. Hydrogeologic Study, Lower Topanga Creek Watershed, Los Angeles County, California. Prepared for the RCD of the Santa Monica Mountains. Funded by a grant from the California Coastal Conservancy.
Topanga Creek Watershed Water Quality Study Final Report
Dagit, R., S. Williams and J. Fuhrman. 2004. Topanga Creek Watershed Water Quality Study Final Report. Resource Conservation District of the Santa Monica Mountains, December, 2004.
Project Study Report: Topanga Lagoon Bridge Replacement and Lagoon Restoration
Project Study Report: Topanga Canyon Blvd Narrows Roadway and Tunnel
Caltrans 2004. Project Study Report (Project Development Support) TOPANGA CANYON BLVD NARROWS ROADWAY AND TUNNEL. Prepared by Moffatt and Nichols Engineers for the RCD of the Santa Monica Mountains. Funded by a grant from the California Coastal Conservancy.
Initial Site Assessment Report Topanga Lagoon Restoration, Topanga, California
GeoPentech, 2003. Initial Site Assessment Report Topanga Lagoon Restoration, Topanga, California. Prepared for Moffat & Nichol Engineers.
Technical Memorandum: Topanga Lagoon Restoration Project Preliminary Soils Investigation
Moffatt and Nichols Engineers. 2003. Technical Memorandum: Topanga Lagoon Restoration Project Preliminary Soils Investigation, Los Angeles County, California.
Topanga Creek Watershed Management Plan
Dagit, R. editor. 2002. Topanga Creek Watershed Management Plan. Topanga Creek Watershed Committee,Topanga, CA.
Topanga Creek Watershed and Lagoon Restoration Feasibility Study
Dagit, R. and C. Webb. 2002. Topanga Creek Watershed and Lagoon Restoration Feasibility Study. Resource Conservation District of the Santa Monica Mountains, Topanga, CA.
Steelhead Trout
Occurrences of Steelhead Trout (Oncorhynchus mykiss) in Southern California, 1994-2018
Occurrences of Steelhead Trout (Oncorhynchus mykiss) in Southern California, 1994-2018: published in the California Fish and Wildlife Journal, vol. 106(1) (https://wildlife.ca.gov/Publications/Journal/Contents), pdf version here.
Temporal and Volumetric Characteristics of Lagoons in the Santa Monica Bay and the Passage Implications for Southern California Steelhead Trout
Alvarez, Danielle and Dagit, Rosi 4886381 (2019) “Temporal and Volumetric Characteristics of Lagoons in the Santa Monica Bay and the Passage Implications for Southern California Steelhead Trout,” Bulletin of the Southern California Academy of Sciences: Vol. 118: Iss. 3.
Steelhead Abundance Monitoring in the Santa Monica Bay, January 2017 – November 2019
Dagit, R., D. Alvarez, A. Della Bella, S. Contreras, B. Demirci, A. Kahler, E. Montgomery, H. Nuetzel and J. C. Garza. 2019. Steelhead Abundance Monitoring in the Santa Monica Bay, January 2017 – November 2019. Prepared for California Department of Fish and Wildlife Contract No. 1650904. Prepared by the Resource Conservation District of the Santa Monica Mountains, Topanga, CA.
Temporal and Volumetric Characteristics of Lagoons in the Santa Monica Bay and the Passage Implications for Southern Steelhead Trout
Alvarez, D. and R. Dagit. 2019. Temporal and Volumetric Characteristics of Lagoons in the Santa Monica Bay and the Passage Implications for Southern Steelhead Trout. Bulletin of the Southern California Academy of Sciences 118(3):1-27.
Santa Monica Bay Anadromous Adult and Juvenile Steelhead Monitoring, 2013-2018
Santa Monica Bay Anadromous Adult and Juvenile Steelhead Monitoring, 2013-2018: a report prepared for the California Department of Fish and Wildlife contracts Nos. P1250013 and P1450013. The report is in four sections: Introduction and Appendices 4 & 5; Task 1; Task 2; Task 3
Comprehensive Lifecycle Monitoring of Oncorhynchus mykiss in Topanga Creek, California: Final Report 2008-2018
Comprehensive Lifecycle Monitoring of Oncorhynchus mykiss in Topanga Creek, California: Final Report 2008-2018: a report prepared for the California Department of Fish and Wildlife contract No. P1550012. P1550012 Lifecycle Final Report
The Effects of a Prolonged Drought on Southern Steelhead Trout
Dagit, Rosi; Bell, Ethan; Adamek, Krista; Mongolo, Jennifer; Montgomery, Elizabeth; Trusso, Nina; and Baker, Peter (2017) “The Effects of Prolonged Drought on Southern Steelhead Trout (Oncorhynchus mykiss) in a coastal creek, Los Angeles County, California,” Bulletin of the Southern California Academy of Sciences: Vol. 116: Iss. 3.
Santa Monica Bay Anadromous Adult and Juvenile Steelhead Monitoring 2013-2015
Dagit, R., K. Adamek, D. Hofflander, J. Mongolo and E. Montgomery. 2015. Santa Monica Bay Anadromous Adult and Juvenile Steelhead Monitoring 2013-2015. Prepared for CDFW contract No P1250013. Resource Conservation District of the Santa Monica Mountains, Topanga, CA.
Topanga Creek Steelhead Monitoring March 2011-December 2015
Dagit, R. K. Adamek, S. Albers, E. Montgomery, and A. Sanchez. 2015. Topanga Creek Steelhead Monitoring March 2011-December 2015. Prepared for California Department of Fish and Wildlife, Contract P105009. Resource Conservation District of the Santa Monica Mountains, Topanga, CA.
Topanga Creek Steelhead Monitoring March 2011-December 2015
Dagit, R. K. Adamek, S. Albers, E. Montgomery, and A. Sanchez. 2015. Topanga Creek Steelhead Monitoring March 2011-December 2015. Prepared for California Department of Fish and Wildlife, Contract P105009. Resource Conservation District of the Santa Monica Mountains, Topanga, CA.
Lifecycle Monitoring of Oncorhynchus mykiss in Topanga Creek
Krug, J., R. Dagit, Stillwater Sciences, J. C. Garza. 2014. Lifecycle Monitoring of Oncorhynchus mykiss in Topanga Creek, California. Final Report. Prepared for CA Department of Fish and Wildlife, Contract No. PO950013. January 2014.
Juvenile Growth of a Population of Southern California Steelhead Trout
Bell E., S. M. Albers, J. M. Krug, and R. Dagit. 2011. Juvenile Growth of a Population of Southern California Steelhead Trout (Oncorhychus mykiss). California Fish and Game Bulletin 97(1):25-35.
Environmental Factors Controlling a Persistent Population of Southern California Steelhead
Bell, Dagit and Lignon. 2011. Environmental Factors Controlling a Persistent Population of Southern California Steelhead (Oncorhychus mykiss). Bulletin of the Southern California Academy of Sciences No 110 (1):1-16.
Summary Report Santa Monica Bay Steelhead Monitoring 2009-2011
Dagit, R and J. Krug. 2011. Summary Report Santa Monica Bay Steelhead Monitoring 2009-2011. Final Report to CDFG Contract No. P0850021. Resource Conservation District of the Santa Monica Mountains. Agoura Hills, CA.
Lifecycle Monitoring of O. mykiss in Topanga Creek, California. Final Report to CDFG Contract No. P0750021
Stillwater Sciences, R. Dagit and J. C. Garza. 2010. Lifecycle Monitoring of O. mykiss in Topanga Creek, California. Final Report to CDFG Contract No. P0750021. Resource Conservation District of the Santa Monica Mountains, Agoura Hills, CA.
Die Off and Current Status of Southern Steelhead Trout (Oncorhynchs mykiss) in Malibu Creek, Los Angeles County, USA
Dagit, R., S. Adams and S. Drill. 2009. Die Off and Current Status of Southern Steelhead Trout (Oncorhynchs mykiss) in Malibu Creek, Los Angeles County, USA. Southern California Academy of Sciences Bulletin Vol 108(1):1-15.
Prepared for Contract No. P4050012 California Department of Fish and Game
Dagit, R., S. Albers, and S. Williams. 2009. Prepared for Contract No. P4050012 California Department of Fish and Game. Resource Conservation District of the Santa Monica Mountains, Agoura Hills, CA.
Tidewater Goby
Summary of Tidewater Goby Observations, Malibu Lagoon, Malibu, CA 1996-2000
Dagit, Rosi and S. Williams. 2005. Summary of Tidewater Goby Observations, Malibu Lagoon, Malibu, CA 1996-2000 for Permit PRT-811188. Data collected for Caltrans Mitigation Contract Repair of the Pacific Coast Highway Bridge over Malibu Lagoon. Submitted to USFWS, March 2005. Resource Conservation District of the Santa Monica Mountains, Topanga, CA.
Southwestern Pond Turtle
Topanga Turtle Study (Emys marmorata pallida) 2002-2006
Dagit, R., M. Graves and C. Wheeland. 2006. Topanga Turtle Study (Emys marmorata pallida) 2002-2006. Funded by a grant from the Santa Monica Bay Restoration Commission. Resource Conservation District of the Santa Monica Mountains, Topanga, CA.
Western Pond Turtle Study in the Topanga Creek Watershed: Yearly Report May 2003-2004
Dagit, R. 2004. Western Pond Turtle Study in the Topanga Creek Watershed: Yearly Report May 2003-2004. Resource Conservation District of the Santa Monica Mountains, Topanga, CA.
Western Pond Turtle Study in the Topanga Creek Watershed: First Year Report May 2002-2003
Dagit, R. 2003. Western Pond Turtle Study in the Topanga Creek Watershed: First Year Report May 2002-2003. Resource Conservation District of the Santa Monica Mountains, Topanga, CA.
Other Biological/Environmental Documents
Removal Efforts and Ecosystem Effects of Invasive Red Swamp Crayfish (Procambarus clarkii) in Topanga Creek
Garcia, C., E. Montgomery, J. Krug and R. Dagit. 2015. Removal Efforts and Ecosystem Effects of Invasive Red Swamp Crayfish (Procambarus clarkii) in Topanga Creek, California. Bulletin of the Southern California Academy of Sciences. Vol 114(1):12-21.
Evidence for Negative Effects of Drought on Benthic Macroinvertebrate Community of a Southern California Stream
Montgomery, E., C. Garcia, K. Krug, and R. Dagit. 2015. Evidence for Negative Effects of Drought on Benthic Macroinvertebrate Community of a Southern California Stream. Bulletin of the Southern California Academy of Sciences Vol 114(3):129-140.
Long-term Molecular Marker Monitoring in the Topanga Creek Watershed
Riedel, T., V. Thulsirag, A. G. Zimmer-Faust, R. Dagit, J. Krug, K. T. Hanley, K. Adamek, D. L. Ebentier, R. Torres, U. Cobian, S. Peterson, and J.A. Jay. 2015. Long-term Molecular Marker Monitoring in the Topanga Creek Watershed, CA. USA, Suggests That Coastal Fecal Indicator Bacteria are from Multiple Animal Hosts, Each with a Different Seasonal Pattern. Water Research 71:227-243.
Topanga Source Identification Study Final Report December 2012-August 2014
Dagit, R., J. Krug, K. Adamek, E. Montgomery, C. Garcia, S. Albers, J.A. Jay, T. Riedel, A. G. Zimmer-Faust, V. Thulsiraj, C. Marambio, S. Braband, D. Tufto and R. Sherman. 2014. Topanga Source Identification Study Final Report December 2012-August 2014. Prepared by the Resource Conservation District of the Santa Monica Mountains for Los Angeles County. Topanga, CA.