US Bridges

Old NE Road over Unnamed Creek

Good

Jackson County, South Dakota · 2W & 1.7S Cactus Flat · Structure no. 000000036100127

Built
1935
90 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
27
2022 count
Owner
County
County Highway Agency

About this bridge

Old NE Road over Unnamed Creek is a concrete continuous culvert carrying Old NE Road over Unnamed Creek in Jackson County, South Dakota. It was built in 1935, so it is 90 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 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 27 vehicles a day, roughly 2% of them trucks, projected to reach 27 by 2032. The structure is 21 ft (6.3 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesOld NE Road
CrossesUnnamed Creek
Location2W & 1.7S Cactus Flat
RouteCounty Highway 0
Coordinates43.81109, -101.93967
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40.5 US tons
Inventory rating24.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27 (2022)
Projected traffic27 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Old NE Road over Unnamed Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is Old NE Road over Unnamed Creek 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 Old NE Road over Unnamed Creek carry?

About 27 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Old NE Road over Unnamed Creek?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 26 ft wide.

Who owns Old NE Road over Unnamed Creek?

It is owned by the County Highway Agency.