Special investigations
The Office of Bridges and Structures at the Iowa Department of Transportation is responsible for the design, maintenance and rehabilitation of bridges and other transportation structures on the state highway system. As atypical problems arise that cannot be addressed as part of the typical office planning process, special evaluations are often needed.| Project | Documents/Photos/Plans |
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Monitoring of the Iowa River bridge launching |
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Investigation of High-mast light pole failure |
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Investigation of fatigue cracking due to out-of-plane bending |
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Monitoring of bridge vibration due to high-wind - Saylorville |
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Testing and evaluation of basket handle arch hangers, I-235 pedestrian bridges |
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| Concrete Drilled Shaft Testing, Iowa DOT Project No. 90-00-RB01-010 |
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Drilled shaft load testing, I-235 over UPRR |
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Monitoring and evaluation of integral abutments supported on steel piling/drilled shaft combination, Ninth Street over I-235 |
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Investigation of bridge mounted light poles vibrations, Burlington bridge |
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Investigation of sign-support truss structure |
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Investigation of collision damaged high-truss bridge, Coppock bridge on Iowa 78 |
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| Debris Mitigation Methods for Bridge Piers |
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