Air Formed Arch Culvert Construction: Crawford County, Construction Reports, HR-314, 1991

(1991) Air Formed Arch Culvert Construction: Crawford County, Construction Reports, HR-314, 1991. Transportation, Department of

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Abstract

Iowa's secondary roads contain nearly 15,000 bridges which are less than 40 feet (12 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-0-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. The objective of research project HR-314 was to construct an air formed arch culvert to determine the applicability of the Air-O-Form technique as a county bridge replacement alternative.

Item Type: Departmental Report
Keywords: Box culverts, Bridges and culverts, Secondary roads, Construction, Concrete arch culverts
Subjects: Transportation
Transportation > Materials
Transportation > Bridges and tunnels
Transportation > Research
Transportation > Design and Construction
Transportation > Maintenance and preservation
ID Code: 21994
Deposited By: Iowa DOT Library
Deposited On: 29 Apr 2016 18:28
Last Modified: 29 Apr 2016 18:28
URI: http://publications.iowa.gov/id/eprint/21994