AREMA Tie Plate for 115 lbs RA

For 115 lb RA rail, the AREMA Plan No. 11 (modernized as Plan 8 in some current engineering manuals) specifies a 14-inch double-shoulder tie plate designed to distribute heavy loads across timber or concrete ties.

Engineering Dimensions & Drawings

A standard drawing for a 115 lb tie plate typically includes these measurements: 

Key Design Features

• Asymmetrical Layout: The "Field End" (outside the rail) is longer than the "Gauge End" (inside) to provide greater leverage against lateral forces.

• Double Shoulders: Two raised ridges (shoulders) physically trap the 5-1/2" rail base to maintain precise track gauge.

• Material: Usually hot-rolled or forged high-carbon steel (AISI 1045/1060) or cast ductile iron for superior durability.

• Inclined Ends: The edges are beveled (inclined) to reduce the risk of the plate cutting into the tie under vertical loading.

Signum specializes in AREMA tie plates, specifically for 115RE or 136RE rail sections. We currently support North American infrastructure projects by providing forged,rolled and cast plates that meet Plan 8 and Plan 12 specifications.We’d love to send over our latest technical data sheets and lead times for your maintenance cycle if you need.