The study presents results of on site inspection and interviews with operators of 96 representative stockpass structures on two and four lane highways on both range land and farm-dairy areas in South Dakota. Purpose of the study was to obtain factual information on various aspects of stock pass usage to assist in right of way negotiations and stock pass design. Included are data on structure type and size, condition, age, drainage, and terrain from investigator's field observations, and number and type of livestock served, frequency of use, need for driving, use to reach water, and a determination of adequacy and problems from operators' statements. Condition and age apparently have little or no influence on usability of stock passes. The most significant relationships found were between the need for driving stock through passes and factors such as cross section/length ratio and drainage. In terms of need for driving stock through passes, structures which combined stock pass and drainage functions were less useful as stock passes than those not carrying drainage. Also, as length of structures increased in relation to size (clear opening end area), need for driving stock through passes increased. Data indicates that, to minimize need for driving, length in feet should ideally be not more than two and one-half to three times the clear opening end area in square feet where ever possible. /FHWA/

  • Supplemental Notes:
    • Sponsored by DOT, Federal Highway Administration.
  • Corporate Authors:

    South Dakota Department of Transportation

    700 East Broadway Avenue
    Pierre, SD  United States  57501
  • Authors:
    • Anderson, D A
    • Tennant, V O
    • THOMAS, J B
  • Publication Date: 1978-3

Media Info

  • Pagination: n.p.

Subject/Index Terms

Filing Info

  • Accession Number: 00179863
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWA-SD-78-615 Final Rpt.
  • Contract Numbers: HP 5830(12)
  • Created Date: Oct 12 1978 12:00AM