US Bridges

142nd Street over Snake Creek

Poor

Edmunds County, South Dakota · 11.1W of Warner · Structure no. 000000023479180

Built
1959
66 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
133 ft
3 main spans
Daily traffic
150
2022 count
Owner
County
County Highway Agency

About this bridge

142nd Street over Snake Creek is a steel stringer/multi-beam or girder carrying 142nd Street over Snake Creek in Edmunds County, South Dakota. It was built in 1959, so it is 66 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 poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 150 vehicles a day, roughly 3% of them trucks, projected to reach 150 by 2032. The structure is 133 ft (40.5 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries142nd Street
CrossesSnake Creek
Location11.1W of Warner
RouteCounty Highway 6176
Coordinates45.33067, -98.72477
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.5 US tons
Inventory rating43.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length133 ft (40.5 m)
Longest span49 ft (14.9 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic150 by 2032
Trucks3%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.8 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 142nd Street over Snake Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is 142nd Street over Snake Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does 142nd Street over Snake Creek carry?

About 150 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is 142nd Street over Snake Creek?

The structure is 133 ft (40.5 m) long with a longest span of 49 ft (14.9 m) and a deck 27 ft wide.

Who owns 142nd Street over Snake Creek?

It is owned by the County Highway Agency.