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Steel Cattle Guards

Big R Bridge Cattleguards

Versatile and cost-effective cattle guard solution that are government approved.

Big R’s prefabricated Steel Cattle Guards are designed for a variety of specifications, including those issued by state and federal agencies. Our cattle Guard systems are ideal for standard highway and also meet off-road or haul-road requirements.

Standard Features

  • Designed to meet BLM or USFS specifications
  • Ultra strong Grade 50 steel construction
  • Sizes from 8' to 20'
  • Pre-painted for convenience
  • May be installed end-to-end for any road width


  • U-80 loading
  • Three rail cleanout section
  • Precast concrete or timber bases
  • Cattle Guard kits are available

Strength and performance.

Big R’s prefabricated Steel Cattle Guards are constructed using roll-formed Grade 50 steel rail sections welded to stringers (usually an 8" wide flange), the Cattle Guards are factory painted to customer specifications. Big R also furnishes wing sections and precast concrete bases.


Save time and money on bridges

Dave Rogers, of Big R Bridge, on factory-built vs. field-built.

» Watch the video