REHABILITATION OF LARGE DIAMETER STEEL CULVERTS. FINAL REPORT

Most of the large culverts in Maine are galvanized steel structural plate pipes and many of these are nearing the end of their service lives. In the past, these culverts have usually been replaced with new structural plate pipes. Rehabilitating culverts in place instead of constructing new pipes would save inconvenience and danger to the public during construction as well as construction costs. This study investigated the feasibility of rehabilitating structural plate pipes as well as alternative designs and materials for new or replacement culverts that would economically offer extended service lives and thus reduce the future need for culvert replacement. The study involved a literature search and a survey of state departments of transportation as well as receiving information from trade associations, suppliers, and contractors engaged in culvert rehabilitation. Using this information and current construction costs and estimated service lives, the economic feasibility of various rehabilitation methods and alternatives for new construction of large culverts were evaluated. Recommendations based on the material prices, construction costs, and expected service lives used in the study are as follows. If possible, pipes should be rehabilitated by lining the inverts with reinforced concrete. If the cross sectional shape of the existing culvert is distorted or corroded to the extent that the culvert can not continue to support the applied loads, the culvert should be rehabilitated by slipforming. When rehabilitation is not practical because of advanced pipe deterioration, reduced hydraulic capacity or increased elevation of the invert, the pipe should be replaced with an aluminum structural plate pipe or aluminum structural plate arch. These recommendations are valid only for the material prices, construction costs, and service lives used in the economic analysis. The designs for rehabilitating or replacing deteriorated culverts in the future should be based on similar analyses incorporating the best current estimates for costs and service lives.

  • Corporate Authors:

    University of Maine, Orono

    Department of Civil and Environmental Engineering, Boardman Hall
    Orono, ME  United States  04469-5711

    Maine Department of Transportation

    Technical Services Division, 16 State House Station
    Augusta, ME  United States  04333
  • Authors:
    • Alexander, J A
    • Sandford, T C
    • Seshadri, A
  • Publication Date: 1994-12

Language

  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 123 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00670450
  • Record Type: Publication
  • Report/Paper Numbers: Technical Paper 93-3
  • Files: TRIS, STATEDOT
  • Created Date: Dec 22 1994 12:00AM