US Bridges

SD037 over Enemy Ck

Fair

Davison County, South Dakota · 3.6 S I 90 Interch · Structure no. 000000018160142

Built
1946
79 years old, rebuilt 1962
Condition
Fair
inspected October 2022
Type
Culvert
Concrete Continuous
Length
53 ft
3 main spans
Daily traffic
3,776
2024 count
Owner
State
State Highway Agency

About this bridge

SD037 over Enemy Ck is a concrete continuous culvert carrying SD037 over Enemy Ck in Davison County, South Dakota. It was built in 1946 and reconstructed in 1962, so it is 79 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 3,776 vehicles a day, roughly 13% of them trucks, projected to reach 5,162 by 2044. The structure is 53 ft (16.1 m) long. If it were closed, the detour would be 42.9 mi (69 km).

CarriesSD037
CrossesEnemy Ck
Location3.6 S I 90 Interch
RouteState Highway 37
Coordinates43.64072, -98.00657
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating73.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length53 ft (16.1 m)
Longest span17 ft (5.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,776 (2024)
Projected traffic5,162 by 2044
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed42.9 mi (69 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$12,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SD037 over Enemy Ck built?

It was built in 1946, making it 79 years old in 2025. It was reconstructed in 1962.

What condition is SD037 over Enemy 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 October 2022.

How much traffic does SD037 over Enemy Ck carry?

About 3,776 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is SD037 over Enemy Ck?

The structure is 53 ft (16.1 m) long with a longest span of 17 ft (5.2 m).

Who owns SD037 over Enemy Ck?

It is owned by the State Highway Agency.