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Last Updated: Wednesday, April 13, 2016 9:47 AM
North Coast Studies
Research in stormwater runoff along the North Coast will help Caltrans refine construction and maintenance practices to prevent stormwater pollution
These studies along the North Coast are providing Caltrans with important information about how aquatic life may be affected by stormwater runoff.
Information from these studies will be used to further refine the overall Stormwater Program.
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Herbicide Effects on Surface WatersAre the best management practices currently used by Caltrans adequately protecting nearby waterways from herbicides in highway runoff?
Some of the tasks in this study will serve to...
A model of herbicide runoff will be developed and used to conduct sensitivity analyses for the range of conditions that might create herbicide runoff problems. The model will be used to help Caltrans crews maintain safe spray practices. Herbicide Effects on Fish Reproduction
For this study, fish will be used as laboratory models to see how herbicides function in fish. Several chemicals contained in herbicides can have negative effects on fish reproduction by interrupting normal hormone function (endocrine disrupters). Some endocrine disrupters mimic female hormones while others block the activity of these female hormones. These are relatively recent discoveries. Fish will be exposed to chemicals in the laboratory to see if effects are severe enough to potentially disrupt reproduction. If endocrine |
![]() How does stormwater runoff from bridges affect water quality, fish, and aquatic habitat in adjacent streams? ![]() |
North Coast River Loading StudyWhat is the contribution of Caltrans land uses on the total pollution load of a typical North Coast river?
Road Crossings on Small Streams
Bridge crossings over streams can affect aquatic habitat in several ways. Sediment from eroded banks during and after construction and stormwater runoff from bridges can both affect water quality and organisms within the streams. This study conducted in the Navarro watershed will:
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To view reports on this subject CLICK HERE
FOR MORE INFORMATION CONTACT
Division of Environmental Analysis, Stormwater Unit
California Department of Transportation
P.O. Box 942874, MS-27
Sacramento, CA 94274-0001
Email:
Division of Environmental Analysis, Stormwater Unit