00457868

Component

http://onlinepubs.trb.org...trr/1985/1016/1016-002.pdf

https://scholar.google.co...lson&publication_year=1985

US-2 was reconstructed in Glacier National Park, Montana, past a natural mineral lick and crossing area regularly used by mountain goats (Oreamnos americanus). A bridge was built over the highway as an underpass for goats (underpass dimensions = 12 to 28 ft high x 90 ft wide x 44 ft through). A second bridge over a stream crossing located 200 ft to the east was improved for mountain goat underpassages. Cyclone fencing 8 ft high and reinforced earth walls 8 to 24 ft high forced goats to use the bridges in a 500-ft crossing zone. Most crossing goats (99.4 percent) used the two bridges. Mountain goats were disturbed less after the bridges were built. Goats extended their season of visits to the lick into fall and winter, and individual goats doubled their number of lick visits per year after the bridges were built.

Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved. Publication of this paper sponsored by Committee on Landscape and Environmental Design.

pp 6-10

1985

Transportation Research Record

Print

Figures (4) ; Photos (4) ; References (12)

Animals; Bridge design; Bridges; Construction management; Fences; Highway bridges; Mechanically stabilized earth; Mountains; Structural design; Underpasses

Bridges and other structures; Construction; Design; Environment; Geotechnology; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure

TRIS, TRB

Sep 30 1986 12:00AM

• A VISUAL APPROACH TO REDESIGNING THE COMMERCIAL STRIP HIGHWAY
• EXPOSURE AND RISK ASSESSMENT, HEALTH MONITORING, AND RISK MANAGEMENT FOR HERBICIDE APPLICATORS
• WILDLIFE POPULATIONS UTILIZING RIGHT-OF-WAY HABITAT ALONG INTERSTATE 95 IN NORTHERN MAINE
• WILDLIFE USE OF ROADSIDE WOODY PLANTINGS IN INDIANA