US Bridges

SD045 over Br Crow Ck

Fair

Buffalo County, South Dakota · 1.8 N JCT Sd 34 · Structure no. 000000009290063

Built
1958
67 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
54 ft
3 main spans
Daily traffic
492
2024 count
Owner
State
State Highway Agency

About this bridge

SD045 over Br Crow Ck is a concrete continuous slab carrying SD045 over Br Crow Ck in Buffalo County, South Dakota. It was built in 1958, so it is 67 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 492 vehicles a day, roughly 21% of them trucks, projected to reach 755 by 2044. The structure is 54 ft (16.5 m) long and 34 ft wide. If it were closed, the detour would be 46 mi (74 km).

CarriesSD045
CrossesBr Crow Ck
Location1.8 N JCT Sd 34
RouteState Highway 45
Coordinates44.10386, -98.98658
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating31 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length54 ft (16.5 m)
Longest span18 ft (5.6 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic492 (2024)
Projected traffic755 by 2044
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed46 mi (74 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 Br Crow Ck built?

It was built in 1958, making it 67 years old in 2025.

What condition is SD045 over Br Crow Ck in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does SD045 over Br Crow Ck carry?

About 492 vehicles per day (2024 count), of which roughly 21% are trucks.

How long is SD045 over Br Crow Ck?

The structure is 54 ft (16.5 m) long with a longest span of 18 ft (5.6 m) and a deck 34 ft wide.

Who owns SD045 over Br Crow Ck?

It is owned by the State Highway Agency.