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St Onge Road over False Bottom Ck

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

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

St Onge Road over False Bottom Ck in Lawrence County, South Dakota, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 9 (excellent condition) on the 0-9 scale.
It was built in 2023, making it 2 years old at the 2025 inventory.
It carries about 600 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 53 of the 136 inventoried bridges in Lawrence County rated good (39.0%); 16 (11.8%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 103 ft
Location	2.6 S St. Onge
NBI structure number	000000041165066
Condition class	Good

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