RCC DAMS IN THE USA

Several significant roller compacted concrete (RCC) dam projects have recently been completed or are in progress in the USA. Each of them shows how RCC can be used effectively to replace or repair existing dams, whose design lives have been exceeded or which have at least one safety defect. This article discusses four of these projects in depth. The Tongue River Dam in Montana is an earthfill structure built in the late 1930s to provide flood protection and store irrigation water. To make it safer, it was recently provided with a new spillway, most of whose RCC was encapsulated completely with conventional concrete. Various problems arose with the original Penn Forest Dam in Pennsylvania, a 590m long by 44m high earthfill dam completed in 1959. In 1994, it was replaced by an RCC dam, which was not the least costly option, but had better long-term safety, reliability, and constructability. In 1973, the Buckhorn earthfill dam in North Carolina was built to contain a reservoir; in 1987, a larger RCC dam was constructed downstream to increase the water supply. The Pueblo Dam in Colorado was built in 1962 to store water for flood control, irrigation, water supply, and recreation, but later considered hazardous. Structural modifications, using RCC, were installed early in 1999 to increase its safety.

  • Availability:
  • Corporate Authors:

    Palladian Publications Limited

    15 South Street
    Farnham Surrey GU97QU,   United Kingdom 
  • Authors:
    • Bass, R P
  • Publication Date: 1999-3

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00767098
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Aug 6 1999 12:00AM