• Vehicle & Highway


  • Vehicle & Highway


  • Vehicle & Highway


                   Cedar Rock bridge, Quasqueton, IA in Buchanan County has a 40' roadway with 70' clear span composite glulam treated timber bridge with expected services life of 100 years.

Testing by the Iowa State University has confirmed that composite action was achieved in full scale testing. Testing by Iowa State University, Ames, Iowa and South Dakota State University, Brookings, South Dakota confirmed that the epoxied joints are permanent and will not break from repetative loading. 

This Structure was designed with the following criteria:

1. Long Life Span

2. Low Maintenance

3. Fast Erection by Common Labor or Contractors

4. Sustainability of Resources 

5. Aesthetics

6. Low Carbon Footprint

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