TxDOT 380-24®R Top Flange Manhole Ring

The TxDOT-approved 380-24®R top-flanged cast iron 24″ manhole ring is designed for the 380-24®R (V-1874) TxDOT cover or compatible 400-24® series covers and grates. This stock item is H-20 traffic rated when paired with an H-20 rated cover and properly installed in reinforced concrete. Riser rings are available for added versatility. Made from uncoated cast gray iron that meets ASTM A48 CL35B or better and AASHTO M306-10 (M105) standards, this ring ensures durability and compliance. Proudly made in the USA, it is a reliable choice for infrastructure projects.

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