SD045 over Ck

McPherson 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 McPherson 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 1996, making it 29 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 10 of the 14 inventoried bridges in McPherson County rated fair (71.4%); 0 (0.0%) 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 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 37 ft
Location	3.3 South of Leola
NBI structure number	000000045380183
Condition class	Fair
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
SD010 over Foot Ck	1957	770	Fair
SD010 over Ck	1957	770	Fair
SD010 over North Br Willow Ck	1957	770	Fair
SD010 over Trib to Foot Ck	2014	753	Fair
SD045 over Ck	1996	391	Fair
363RD Avenue over Creek	1952	218	Good