AIR FORMED ARCH CULVERT CONSTRUCTION - WASHINGTON COUNTY. FINAL REPORT
Iowa's secondary roads contain nearly 15,000 bridges which are less than 40 ft (12.2 m) in length. Many of these bridges were built several decades ago and need to be replaced. Box culvert construction has proven to be an adequate bridge replacement technique. Recently a new bridge replacement alternative, called the Air-O-Form method, has emerged which has several potential advantages over box culvert construction. This new technique uses inflated balloons as the interior form in the construction of an arch culvert. Concrete was then shotcreted onto the balloon form. The objective of research project HR-313 was to construct an air formed arch culvert to determine the applicability of the Air-O-Form technique as a county bridge replacement alternative. The project had the following results: The Air-O-Form method can be used to construct a structurally sound arch culvert; and the method must become more economical if it is to compete with box culverts. Continued monitoring should be conducted in order to evaluate the long-term performance of the Air-O-Form method.
- Record URL:
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Supplemental Notes:
- Cooperating organizations: R.G. Elder and Son Company; Washington County Secondary Roads Department.
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Corporate Authors:
Iowa Department of Transportation
800 Lincoln Way
Ames, IA United States 50010 -
Authors:
- Huber, R G
- Tymkowicz, S
- Callahan, M
- Publication Date: 1994-2
Language
- English
Media Info
- Features: Appendices; Figures; Photos;
- Pagination: 32 p.
Subject/Index Terms
- TRT Terms: Alternatives analysis; Box culverts; Bridges; Concrete arch culverts; Construction management; Culverts; Economics; Equipment replacement; Secondary roads
- Old TRIS Terms: Air formed arch culverts; Replacements
- Subject Areas: Bridges and other structures; Construction; Economics; Highways; Maintenance and Preservation; I53: Construction of Bridges and Retaining Walls;
Filing Info
- Accession Number: 00647330
- Record Type: Publication
- Report/Paper Numbers: HR-313
- Files: TRIS, STATEDOT
- Created Date: May 10 1994 12:00AM