M4-11 Emergency Route (through)
Official FHWA MUTCD M4-11-5 M4-11 Emergency Route (through). Fabricated from heavy-duty .080 gauge 5052-H38 rust-free aluminum with pre-drilled standard mounting holes for post and barricade installation. Features 3M High-Intensity Prismatic (HIP) or Diamond Grade (DG3) reflective sheeting meeting ASTM D4956 specifications. 100% compliant with Federal Highway Administration (FHWA) MUTCD standards, WSDOT specifications, and municipal street-use requirements. Standard commercial procurement Category-Class: 700-0010.
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