INFILTRATION DRAINAGE OF HIGHWAY SURFACE WATER

THE USE OF INFILTRATION BASINS AND WELLS FOR DISPOSAL OF HIGHWAY SURFACE RUNOFF IN NORTHERN CALIFORNIA IS EVALUATED. RESULTS OF A LITERATURE SEARCH AND A FIELD SURVEY OF CURRENT PRACTICE ARE REPORTED. CRITICAL DESIGN AND PERFORMANCE FACTORS FOR BASINS AND WELLS ARE LISTED. SOCIAL FACTORS INCLUDING HEALTH, SAFETY, AND AESTHETICS ARE DISCUSSED. PROCEDURES FOR DESIGN, CONSTRUCTION, AND MAINTENANCE ARE SUGGESTED. IT WAS CONCLUDED THAT BASINS CAN BE A PRACTICAL AND ECONOMICAL MEANS OF DISPOSING OF HIGHWAY SURFACE WATER, BUT WELLS HAVE A MORE LIMITED APPLICATION. PROVISION OF STORAGE TO CONTAIN ALL THE RUNOFF FROM THE DESIGN STORM SEQUENCE, WITHOUT TAKING INFILTRATION INTO ACCOUNT, WAS JUDGED TO BE THE MOST IMPORTANT SINGLE DESIGN CRITERION. TWO OUTSTANDING FACTORS WITH REGARD TO INFILTRATION DRAINAGE ARE SOIL PERMEABILITY AND SILT BUILD-UP IN THE DRAINAGE FACILITY. RECOMMENDATIONS ARE MADE FOR FURTHER STUDY DIRECTED AT: CORRELATION OF FIELD INFILTRATION TESTING AND ACTUAL DRAINAGE FACILITY PERFORMANCE, DEVELOPMENT OF SILT FILTERS, EVALUATION OF SPECIAL TREATMENTS TO IMPROVE INFILTRATION RATES, AND EVALUATION OF HYDROLOGIC DESIGN PROCEDURE USED TO CALCULATE RUNOFF QUANTITIES FROM RESTRICTED WATERSHEDS. /AUTHOR/

  • Supplemental Notes:
    • Hpr-pr-adm., E-3-1
  • Corporate Authors:

    California Division of Highways

    Bridge Department
    Sacramento, CA  United States  05914

    Bureau of Public Roads /US

    400 7th Street, SW
    Washington, DC  United States  20590
  • Authors:
    • Smith, T
  • Publication Date: 1969-8

Subject/Index Terms

Filing Info

  • Accession Number: 00204006
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS
  • Created Date: Feb 9 1970 12:00AM