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SD019 over Park Ck

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

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

SD019 over Park Ck in Lake 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 7 (good condition) on the 0-9 scale.
It was built in 2014, making it 11 years old at the 2025 inventory.
It carries about 2,881 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 35 of the 79 inventoried bridges in Lake County rated good (44.3%); 4 (5.1%) 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 August 2023, on a 24-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	7	7	Good condition


Structure	Concrete culvert
Length	about 20 ft
Location	4 SE Jct Sd 34
NBI structure number	000000040149155
Condition class	Good
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	August 2023
Inspection interval (item 91)	24 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
SD034 over Silver Ck	2000	8,695	Fair
414 NE Second Str over Madison Ck	1959	7,576	Fair
SD034 W over Park Ck	1977	3,631	Fair
SD034 E over Park Ck	1977	3,631	Fair
500 N Egan Ave over Madison Ck	1993	3,190	Fair
610 S. Egan Avenue over Silver Ck	1979	2,915	Fair