US Bridges

111th Street over Elm River

Fair

Brown County, South Dakota · 3.7S & 1.5W of Frederick · Structure no. 000000007088110

Built
1988
37 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete Continuous
Length
164 ft
4 main spans
Daily traffic
98
2022 count
Owner
County
County Highway Agency

About this bridge

111th Street over Elm River is a concrete continuous slab carrying 111th Street over Elm River in Brown County, South Dakota. It was built in 1988, so it is 37 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 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 98 vehicles a day, roughly 2% of them trucks, projected to reach 98 by 2032. The structure is 164 ft (50 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries111th Street
CrossesElm River
Location3.7S & 1.5W of Frederick
RouteCounty Highway 0
Coordinates45.77885, -98.5436
Functional classRural Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50.2 US tons
Inventory rating38.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length164 ft (50 m)
Longest span44 ft (13.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic98 (2022)
Projected traffic98 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 111th Street over Elm River built?

It was built in 1988, making it 37 years old in 2025.

What condition is 111th Street over Elm River 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 July 2024.

How much traffic does 111th Street over Elm River carry?

About 98 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 111th Street over Elm River?

The structure is 164 ft (50 m) long with a longest span of 44 ft (13.4 m) and a deck 32 ft wide.

Who owns 111th Street over Elm River?

It is owned by the County Highway Agency.