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Nemo Road over Boxelder Ck

Lawrence County, South Dakota · rated Poor in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Nemo Road over Boxelder Ck in Lawrence County, South Dakota, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 2 (critical condition) on the 0-9 scale.
It was built in 1975, making it 50 years old at the 2025 inventory.
It carries about 300 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 16 of the 136 inventoried bridges in Lawrence County rated poor (11.8%); 16 (11.8%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Continuous prestressed concrete multiple box beam
Length	about 65 ft
Location	1.3N 2.5W of Nemo
NBI structure number	000000041250268
Condition class	Poor

Source: FHWA National Bridge Inventory, 2025 data as reported by the South Dakota department of transportation.

Bridge	Built	Vehicles/day	Condition
Jackson Blvd over Spearfish Ck	1966	12,135	Fair
US014A Pine St over Whitewood Ck	1967	11,370	Fair
US014A over I090	2016	10,868	Good
I090 W over Sandstone Dr	1970	10,406	Fair
I090 E over Sandstone Dr	1970	10,406	Good
US014A over Ck	1994	9,638	Good