Twin Rivers Drive - US Highway 61 Industrial Bypass
Keokuk, Iowa
Project Description: Approximately 5,000 feet of industrial roadway to connect the Keokuk Industrial area to US Highway 61 and 136, including 2 lane curbed street with 565' of 8' diameter concrete pipe and 306' long curved steel girder viaduct over RR. The Twin Rivers Drive pavement was constructed with 10" thick non-reinforced PCC pavement. The pavement was constructed on a 12" granular sub-base with longitudal subdrains tied to stormwater intakes. The vertical and horizontal alignment of the pavement was designed to withstand heavy truck traffic. |
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The bridge structure spanning two railroad tracks, supports a 306' x 28' PCC deck. The overall structure is supported by four 3-span continuous curved steel girders, concrete stub abutments and T-piers with steel pipe foundation to bedrock. The lower photo shows the steel-cased 10" watermain which was designed and supported under the ridge rail along the east girder.
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Services: * Topographic Surveys and Base Mapping. * Concept Design. * Preliminary and Final Design. * Established R.O.W. * Design required coordination with two railroads to complete the 306' curved steel viaduct structure. * Construct Phase Services. Agencies Involved: * Iowa Department of Transportation. * Keokuk Junction Railroad. * Burlington Northern Railroad. * EDA. |
Contact: Shoemaker & Haaland Phone: 319-351-7150