Luten arch

A Luten arch is a patented concrete arch design for bridges, designed by Daniel B. Luten, of Indianapolis.

[2]: 141 The Luten arch improves upon preceding concrete arch designs by strategic use of reinforcement where needed to address tension of load upon the bridge.

This enables bridges to be considerably lighter.

[citation needed] The Luten Bridge Company was one seller of the designs.

The Topeka Bridge & Iron Co. was a western seller of the designs.