US Bridges

118th Street over Creek

Fair

Roberts County, South Dakota · 1.5E & 1N of Sisseton · Structure no. 000000055101180

Built
1983
42 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
75
2022 count
Owner
County
County Highway Agency

About this bridge

118th Street over Creek is a prestressed concrete tee beam carrying 118th Street over Creek in Roberts County, South Dakota. It was built in 1983, so it is 42 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 5 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 75 vehicles a day, roughly 2% of them trucks, projected to reach 75 by 2032. The structure is 31 ft (9.4 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries118th Street
CrossesCreek
Location1.5E & 1N of Sisseton
RouteCounty Highway 0
Coordinates45.67478, -97.01807
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span29 ft (8.9 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2022)
Projected traffic75 by 2032
Trucks2%
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 118th Street over Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is 118th Street over Creek 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 118th Street over Creek carry?

About 75 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 118th Street over Creek?

The structure is 31 ft (9.4 m) long with a longest span of 29 ft (8.9 m) and a deck 31 ft wide.

Who owns 118th Street over Creek?

It is owned by the County Highway Agency.