Evaluation of Slope Stabilization Methods (US-40 Berthoud Pass)

Details

• Creators:
  Banovich, M. ; Outcalt, William (Skip)
• Corporate Creators:
  Colorado. Department of Transportation
• Corporate Contributors:
  United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Erosion control
  • Slope stability
  • Soil stabilization
  • Evaluation
  • Work zones
  • Performance
  • Construction
  • Soil treatment
  • Vegetation establishment
• Publication/ Report Number:
  CDOT-DTD-R-2002-10
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Colorado
• Corporate Publisher:
  Colorado. Department of Transportation
• Description:
  SH-40 west of Berthoud Pass as seen in 1995 was built in the early 1960s. Standard practices for erosion control (in effect during the 1960s) were applied to the cut and fill slopes. The slopes consist of highly erodible and unstable sandy soils mixed with a large quantity of rocks, which vary in size to over two meters in diameter. The snowmelt runoff combined with the severe rain storms of spring and summer wash away the top layer of soil and thereby prevent vegetation establishing itself. Enhancement funds became available for the 1995 construction season to rehabilitate some of the eroded slopes. The purpose of this project is to test various cost effective erosion control materials and installation techniques to provide data for the application on future projects in this and similar areas. Sixteen materials from erosion mats and mulches to different tackifiers are being used within three work zones. The three zones will be evaluated for constructability and overall performance on the better 1 to 1 slopes that are normal for Berthoud Pass.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/93419/dot_93419_DS1.pdf
• File Type:
  [PDF - 704.06 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:eee8893e65a61da51f57a7b45a3b372f454ce258f8af148abbad179417a421bc49a487ad3e5f8911709d3537e70621b5793437075621d3face27dc6464661813