INVESTIGATING THE APPLICABILITY OF BIOTECHNICAL STREAMBANK STABILIZATION IN TEXAS
The Texas Department of Transportation has commonly utilized concrete and other non-biodegradable measures to stabilize stream channels throughout Texas. This research project investigated an alternative stabilization method specifically geared toward the warm regions of Texas, which utilizes live plant materials combined with inert materials such as geosynthetics and rocks to provide protection of streambanks or slopes. In this project, researchers designed five demonstration projects and conducted plant dormancy extension experiments on black willow (Salix nigra). Two of five designed projects were let, and only one project was built. Researchers found that in biotechnical engineering, live plant cuttings are harvested and planted in the dormant period. Texas's short dormant periods make biotechnical construction scheduling very difficult. Following the definition of short dormant period in Texas, researchers conducted the dormancy extension research, which investigated the possibility of extending the dormancy window of live cuttings for construction of biotechnical techniques. The result of the dormancy extension research indicates that black willow cuttings may be able to be artificially cooled in a refrigerator to extend the dormant period for up to approximately 90 days.
- Research Project Title: Regional Applications for Biotechnical Methods of Streambank Stabilization in Texas.
Arlington, TX United States 76011
Austin, TX United States 78763-5080
Washington, DC United States 20590
- Landphair, H C
- Li, M-H
- Publication Date: 2002-9
- Features: Appendices; Figures; Photos; References; Tables;
- Pagination: 174 p.
- TRT Terms: Bank protection; Banks (Waterways); Demonstration projects; Erosion control; Geosynthetics; Plants; Rocks; Slope stability; Soil stabilization; Streams; Technology
- Uncontrolled Terms: Plant dormancy extension
- Geographic Terms: Texas
- Subject Areas: Design; Environment; Geotechnology; Highways; I20: Design and Planning of Transport Infrastructure;
- Accession Number: 00964960
- Record Type: Publication
- Report/Paper Numbers: FHWA/TX-03/1836-1,, Research Report 1836-1,, TTI: 0-1836
- Contract Numbers: Project No. 0-1836
- Files: TRIS, USDOT, STATEDOT
- Created Date: Oct 28 2003 12:00AM