US Bridges

SD034 over Crow Ck

Good

Buffalo County, South Dakota · 0.7 W JCT Sd 45 · Structure no. 000000009284080

Built
1987
38 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete Continuous
Length
209 ft
5 main spans
Daily traffic
469
2024 count
Owner
State
State Highway Agency

About this bridge

SD034 over Crow Ck is a concrete continuous slab carrying SD034 over Crow Ck in Buffalo County, South Dakota. It was built in 1987, so it is 38 years old, younger 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 469 vehicles a day, roughly 22% of them trucks, projected to reach 719 by 2044. The structure is 209 ft (63.7 m) long and 39 ft wide. If it were closed, the detour would be 47.8 mi (77 km).

CarriesSD034
CrossesCrow Ck
Location0.7 W JCT Sd 45
RouteState Highway 34
Coordinates44.07908, -99.00011
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.7 US tons
Inventory rating47.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length209 ft (63.7 m)
Longest span43 ft (13 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic469 (2024)
Projected traffic719 by 2044
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed47.8 mi (77 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 SD034 over Crow Ck built?

It was built in 1987, making it 38 years old in 2025.

What condition is SD034 over Crow 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 September 2023.

How much traffic does SD034 over Crow Ck carry?

About 469 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is SD034 over Crow Ck?

The structure is 209 ft (63.7 m) long with a longest span of 43 ft (13 m) and a deck 39 ft wide.

Who owns SD034 over Crow Ck?

It is owned by the State Highway Agency.