San Luis Bridge, Historic bridge in San Luis, United States

San Luis Bridge is a reinforced concrete open spandrel arch bridge crossing Culebra Creek in San Luis, Colorado. Its single span measures 57 feet (17 m), with a 5-inch concrete deck carried on six concrete columns and steel pipe guardrails. Built in 1911 as a road bridge, it now carries pedestrian traffic.

The bridge was built in 1911 by M.F. Levy Construction Company under the supervision of Colorado's State Engineer. It gained recognition in 1985 when added to the National Register of Historic Places.

The bridge reflects how early engineers solved transportation needs in rural Colorado communities. It represents an important connection project that linked the town to surrounding areas.

The bridge now carries only pedestrian and bicycle traffic, so it is crossed on foot or by bike rather than by car. A 2007 State Historical Fund grant of $150,300 paid for its restoration for those uses. It stands in San Luis over Culebra Creek, where it once carried State Highway 15 and later a county road.

The structure is among the earliest and least modified examples of its construction type across Colorado. This design approach was later copied often, but few bridges from this era remain as well preserved as this one.