SD045 over Ck

Edmunds County, South Dakota · rated Good 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 good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 8 (very good condition) on the 0-9 scale.
It was built in 1992, making it 33 years old at the 2025 inventory.
It carries about 391 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 7 of the 20 inventoried bridges in Edmunds County rated good (35.0%); 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 2024, on a 48-month routine inspection cycle.
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

Component	Rating (2024)	Rating (2025)	FHWA scale meaning
Culvert	8	8	Very good condition


Structure	Continuous concrete culvert
Length	about 25 ft
Location	0.2 S Mcpherson Co Line
NBI structure number	000000023380002
Condition class	Good
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	April 2024
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	1986	660	Fair
SD045 over Ck	1992	391	Good