SD045 over Ck

Edmunds County, South Dakota · rated Fair in the 2025 National Bridge Inventory

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

SD045 over Ck in Edmunds County, South Dakota, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1986, making it 39 years old at the 2025 inventory.
It carries about 660 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 8 of the 20 inventoried bridges in Edmunds County rated fair (40.0%); 5 (25.0%) are rated poor.
Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
Its condition class and component ratings are unchanged from the 2024 inventory.
Its most recent inspection on record is dated April 2022, on a 48-month routine inspection cycle.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings

Component	Rating (2024)	Rating (2025)	FHWA scale meaning
Culvert	6	6	Satisfactory condition


Structure	Continuous concrete culvert
Length	about 20 ft
Location	2.2 N Faulk Co Line
NBI structure number	000000023330217
Condition class	Fair
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	April 2022
Inspection interval (item 91)	48 months
Scour (item 113)	8: foundations stable, scour above the top of the footing

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

Bridge	Built	Vehicles/day	Condition
US012 over Preachers Run Ck	1974	3,329	Fair
US012 over Burlington Northern RR	1970	3,329	Fair
US012 over Ck	1974	2,666	Poor
US012 over BNSF RR	2006	2,068	Good
SD045 over Ck	1992	391	Good
SD045 over Ck	1992	391	Good