US Bridges

SD037 over Crow Ck Ditch

Fair

Brown County, South Dakota · 7.0 S JCT Sd 10 · Structure no. 000000007300169

Built
1961
64 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
117 ft
5 main spans
Daily traffic
836
2024 count
Owner
State
State Highway Agency

About this bridge

SD037 over Crow Ck Ditch is a concrete continuous slab carrying SD037 over Crow Ck Ditch in Brown County, South Dakota. It was built in 1961, so it is 64 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 836 vehicles a day, roughly 29% of them trucks, projected to reach 1,109 by 2044. The structure is 117 ft (35.7 m) long and 34 ft wide. If it were closed, the detour would be 42.3 mi (68 km).

CarriesSD037
CrossesCrow Ck Ditch
Location7.0 S JCT Sd 10
RouteState Highway 37
Coordinates45.69175, -98.10405
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 rating55 US tons
Inventory rating33 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length117 ft (35.7 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 traffic836 (2024)
Projected traffic1,109 by 2044
Trucks29%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed42.3 mi (68 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 Crow Ck Ditch built?

It was built in 1961, making it 64 years old in 2025.

What condition is SD037 over Crow Ck Ditch 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 Crow Ck Ditch carry?

About 836 vehicles per day (2024 count), of which roughly 29% are trucks.

How long is SD037 over Crow Ck Ditch?

The structure is 117 ft (35.7 m) long with a longest span of 23 ft (7.1 m) and a deck 34 ft wide.

Who owns SD037 over Crow Ck Ditch?

It is owned by the State Highway Agency.