RETURN TO MT. ST. HELENS

Mount St. Helens was rocked by a volcanic explosion in May 1980. Among the damages it caused was the destruction of 37 miles of highway providing access into the wilderness area north of Mt. St. Helens. At present there is no access to that large wilderness area beyond a viewpoint at Mile 21 of SR 504, except for logging roads owned by the Weyerhaeuser Company. Washington State is now developing a new 29-mile, $145-million Spirit Lake Memorial Highway to restore public access to that area. This article describes the rock excavation for a section of the new road between Mile Posts 30 and 34.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03620506
• Corporate Authors:

  Cahners Publishing Company

  275 Washington Street
  Newton, MA  United States  02158-1630
• Authors:
  • Munn, W D
• Publication Date: 1990-9

Media Info

• Features: Photos;
• Pagination: p. 32-34
• Serial:
  • Highways and Heavy Construction
  • Volume: 133
  • Issue Number: 12
  • Publisher: Cahners Publishing Company
  • ISSN: 0362-0506

Subject/Index Terms

• TRT Terms: Drilling; Presplitting (Blasting); Road construction; Rock excavation
• Subject Areas: Construction; Geotechnology; Highways; I51: Earthworks and Soil Drainage;

Filing Info

• Accession Number: 00601422
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 30 1990 12:00AM