[2] In 1998 the Calamus Creek Bridge was listed on the National Register of Historic Places (NRHP), one of several N. M. Stark Luten bridges on the register.

[2][1] The NRHP nomination for the bridge says: Before the codification of bridge design in the state in 1913, Stark built perhaps hundreds of Luten arches throughout Iowa, in exclusive contracts with Story and other counties.

This structure in Story County is distinguished as the earliest remaining Luten arch in the state.

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