Author: Publisher:
ISBN:
Category : Logging
Languages : en
Pages : 88
Book Description
Logging Debris in Streams II
Author: Report No. FHWA-RD.
Author: United States. Federal Highway Administration. Offices of Research and DevelopmentPublisher:
ISBN:
Category :
Languages : en
Pages : 80
Book Description
State Forest Notes
Author: Debris Problems in the River Environment
Author: Fred F. M. ChangPublisher:
ISBN:
Category : Bridge failures
Languages : en
Pages : 76
Book Description
Debris causes hydraulic problems at highway bridges nationwide. The problems are the greatest in the Pacific Northwest and the upper and lower Mississippi River Valley. Debris hazards are local and infrequent phenomena often associated with large floods. Most bridge destruction is due to accumulation against bridge components. Debris may partially or totally block waterways and create adverse hydraulic conditions that erode pier foundations and bridge abutments and do other structural damage. Many debris problems exist in forested areas with active logging operations. Bridges on streams where stream slopes are mild or moderate, in contrast to headwater streams, are more vulnerable to debris related hazards. Debris hazards occur more frequently in unstable streams where bank erosion is active.
JDSF Newsletter
Author: Publisher:
ISBN:
Category : Jackson Demonstration State Forest (Calif.)
Languages : en
Pages : 338
Book Description
California State Forests
Author: California State Forests, 1962
Author: California. Division of ForestryPublisher:
ISBN:
Category : Forest reserves
Languages : en
Pages : 336
Book Description
Monthly Checklist of State Publications
Author: Library of Congress. Exchange and Gift DivisionPublisher:
ISBN:
Category : State government publications
Languages : en
Pages : 936
Book Description
June and Dec. issues contain listings of periodicals.
California State Publications
Author: California State LibraryPublisher:
ISBN:
Category : California
Languages : en
Pages : 1062
Book Description
Author: