Culvert pipe bidding requirements for state highway work were originally described in a special paragraph in the 1974 Code of Federal Regulations. All other construction materials and product ...
Stormwater culverts can be dangerous places, due to hazards such as crumbling concrete ceilings, submerged obstacles, and toxic gas accumulations. The PIPE-i robot was designed with that fact in mind, ...
Pyramidlike stacks of corrugated pipe fill Johnston Fargo Culvert's 15-acre complex at 1522 40th St. N. in Fargo. Parked inside the company's 35,000-square-foot manufacturing plant are 200 rolls of ...
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