US Bridges

116th Street over Elm River

Good

Brown County, South Dakota · 2.0S & 3.5W of Barnard · Structure no. 000000007075160

Built
2006
19 years old
Condition
Good
inspected July 2024
Type
Slab
Concrete Continuous
Length
136 ft
3 main spans
Daily traffic
10
2022 count
Owner
County
County Highway Agency

About this bridge

116th Street over Elm River is a concrete continuous slab carrying 116th Street over Elm River in Brown County, South Dakota. It was built in 2006, so it is 19 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 10 vehicles a day, roughly 9% of them trucks, projected to reach 13 by 2032. The structure is 136 ft (41.5 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries116th Street
CrossesElm River
Location2.0S & 3.5W of Barnard
RouteCounty Highway 0
Coordinates45.70647, -98.57017
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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating46.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length136 ft (41.5 m)
Longest span50 ft (15.2 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2022)
Projected traffic13 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 116th Street over Elm River built?

It was built in 2006, making it 19 years old in 2025.

What condition is 116th Street over Elm 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 July 2024.

How much traffic does 116th Street over Elm River carry?

About 10 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is 116th Street over Elm River?

The structure is 136 ft (41.5 m) long with a longest span of 50 ft (15.2 m) and a deck 29 ft wide.

Who owns 116th Street over Elm River?

It is owned by the County Highway Agency.