US Bridges

156th Street over James River

Good

Spink County, South Dakota · 2.0 S 3.4 E Mellett · Structure no. 000000058144080

Built
1978
47 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
140 ft
3 main spans
Daily traffic
31
2022 count
Owner
County
County Highway Agency

About this bridge

156th Street over James River is a concrete continuous slab carrying 156th Street over James River in Spink County, South Dakota. It was built in 1978, so it is 47 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 31 vehicles a day, roughly 2% of them trucks, projected to reach 31 by 2032. The structure is 140 ft (42.7 m) long and 32 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Carries156th Street
CrossesJames River
Location2.0 S 3.4 E Mellett
RouteCounty Highway 0
Coordinates45.12793, -98.42409
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span53 ft (16.2 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31 (2022)
Projected traffic31 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 156th Street over James River built?

It was built in 1978, making it 47 years old in 2025.

What condition is 156th Street over James River 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 2024.

How much traffic does 156th Street over James River carry?

About 31 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 156th Street over James River?

The structure is 140 ft (42.7 m) long with a longest span of 53 ft (16.2 m) and a deck 32 ft wide.

Who owns 156th Street over James River?

It is owned by the County Highway Agency.