Office of Hydraulics and Stormwater Design

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Hydrualics and Stormwater Design

The Office of Hydraulics and Stormwater Design emphasizes stewardship of California's water resources by providing:

  • Development and maintenance of guidance and state-of-the-practice information for departmental staff to promote uniformity and consistency in the design of roadway drainage-related features.
  • Technical assistance to designers on unique or unusual drainage design issues.
  • Liaison to industry, Federal Highway Administration (FHWA), and other interested external entities for roadway drainage product approvals, processes, and requirements.
  • Technical assistance to designers on stormwater pollution control implementation.
  • Assistance to designers to assure compliance with Caltrans' statewide National Pollutant Discharge Elimination System (NPDES) permit.
  • Guidance and training for the implementation of appropriate Storm Water Best Management Practices (BMPs).
  • Management and performance of drainage related special studies and research activities.
  • Development and oversight of drainage-related training courses.
  • Development and maintenance of Roadway Drainage Standard Plans and Specifications.
  • Alternative Pipe Culvert Selection (AltPipe)
  • Authorized Materials List
  • Bank & Shore Rock Slope Protection Design
    • HDM Section 870 Bank Protection – Erosion Control > This can be a major element in the design, construction, and maintenance of highways. Section 870 deals with procedures, methods, devices, and materials commonly used to mitigate the damaging effects of flowing water on transportation facilities and adjacent properties. Potential sites for such measures should be reviewed in conjunction with other features of the project such as long and short term protection of downstream water quality, aesthetic compatibility with surrounding environment, and ability of the newly created ecological system to survive with minimal maintenance. See Index 110.2 for further information on water quality and environmental concerns related to erosion control. See Chapter 880 for shore protection along coastal zones and lake shores that are subjected to wave attack. Refer to Section 72 of the Standard Specifications for RSP Rock Class.
    • HDM Section 880 Shore Protection > Shore protection along coastal zones and lake shores that are subjected to wave attack can be a major element in the design, construction, and maintenance of highways. Chapter 880 deals with procedures, methods, devices, and materials commonly used to mitigate the damaging effects of wave action on transportation facilities and adjacent properties. The primary focus is on quantifying exposure of these locations to sea level rise, storm surge, and wave action. The practice of coastal engineering is still much of an art. This is for a variety of reasons including that the physical processes are so complex, often too complex for adequate theoretical description, and the design level of risk is often high. Refer to Section 72 of the Standard Specifications for RSP Rock Class. Highway Design Manual
  • Gabion Mesh Corrosion
    • Gabion Mesh Corrosion - Field Study of Test Panels and Full-scale Facilities

      The second edition of the final research report, Gabion Mesh Corrosion Field Study of Test Panels and Full-scale Facilities (November 2001) was intended for distribution as a paperless report.

      All of the conclusions and all of the recommendations in both editions are identical. For general guidance see CONCLUSIONS (last paragraph of page 99, all of page 100), RECOMMENDATIONS (pages 101 through 105), and APPENDIX A (pages 110 and 126). Owners of the first edition (May 2001) should replace pages 16, 56, and 107. The cover, signature, and Technical Report Documentation pages were changed to reflect the November 2001 date. A few other pages have minor corrections. All of the photos were darkened to improve the images.

      Printed (hard-copy) reports are not available from Caltrans.

Please forward any questions/comments/suggestions to Bruce.Swanger@dot.ca.gov.

Contact Information

Physical Address:

California Department of Transportation
Division of Design
1120 N Street
Sacramento, CA 95814

Mailing Address:

California Department of Transportation
Division of Design
MS 28
P. O. Box 942874
Sacramento, CA 94271-0001


General Information:

Design Liaison Phone List

Division of Design Org Chart

 

 

 

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