US Bridges

SD045 over Ck

Good

Brule County, South Dakota · 2.6 S I 90 Interch · Structure no. 000000008310161

Built
1949
76 years old, rebuilt 2000
Condition
Good
inspected August 2021
Type
Culvert
Concrete Continuous
Length
20 ft
2 main spans
Daily traffic
875
2024 count
Owner
State
State Highway Agency

About this bridge

SD045 over Ck is a concrete continuous culvert carrying SD045 over Ck in Brule County, South Dakota. It was built in 1949 and reconstructed in 2000, so it is 76 years old, older than the South Dakota average of 48.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 875 vehicles a day, roughly 22% of them trucks, projected to reach 1,263 by 2044. The structure is 20 ft (6.2 m) long. If it were closed, the detour would be 72.7 mi (117 km).

CarriesSD045
CrossesCk
Location2.6 S I 90 Interch
RouteState Highway 45
Coordinates43.69968, -98.85427
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating80.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length20 ft (6.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic875 (2024)
Projected traffic1,263 by 2044
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed72.7 mi (117 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SD045 over Ck built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 2000.

What condition is SD045 over Ck in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2021.

How much traffic does SD045 over Ck carry?

About 875 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is SD045 over Ck?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3 m).

Who owns SD045 over Ck?

It is owned by the State Highway Agency.