Bridge L2257, Carries Municipal Road 75Rock River Drive over unnamed stream, Luverne, Rock County, MN

Significance: Bridge L2257 is locally significant under National Register of Historic Places Criterion C in the area of Engineering as exemplary of the work of local bridge builder, Perley N. Gillham. The bridge, which was constructed in 1910, is significant in the development of the reinforced-concrete bridge, as an example of an early, experimental, non-standardized-design reinforced-concrete bridge. This bridge also exemplifies the types of bridges built under the sponsorship of townships and city governments, prior to statewide standardization efforts.
Unprocessed Field note material exists for this structure: N1692
Survey number: HAER MN-131
Building/structure dates: 1910 Initial Construction