US Bridges

SD037 over Br Timber Ck

Fair

Spink County, South Dakota · 2.3 N JCT US 212 · Structure no. 000000058300217

Built
1957
68 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
92 ft
4 main spans
Daily traffic
462
2024 count
Owner
State
State Highway Agency

About this bridge

SD037 over Br Timber Ck is a concrete continuous slab carrying SD037 over Br Timber Ck in Spink County, South Dakota. It was built in 1957, so it is 68 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 6 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 462 vehicles a day, roughly 17% of them trucks, projected to reach 629 by 2044. The structure is 92 ft (28 m) long and 34 ft wide. If it were closed, the detour would be 42.9 mi (69 km).

CarriesSD037
CrossesBr Timber Ck
Location2.3 N JCT US 212
RouteState Highway 37
Coordinates44.92721, -98.10526
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating55.4 US tons
Inventory rating33.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length92 ft (28 m)
Longest span23 ft (7.1 m)
Deck width34 ft (10.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic462 (2024)
Projected traffic629 by 2044
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed42.9 mi (69 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 SD037 over Br Timber Ck built?

It was built in 1957, making it 68 years old in 2025.

What condition is SD037 over Br Timber 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 June 2024.

How much traffic does SD037 over Br Timber Ck carry?

About 462 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is SD037 over Br Timber Ck?

The structure is 92 ft (28 m) long with a longest span of 23 ft (7.1 m) and a deck 34 ft wide.

Who owns SD037 over Br Timber Ck?

It is owned by the State Highway Agency.