US Bridges

260th Street over Trib to Beaver Ck

FairPosted for load

Minnehaha County, South Dakota · 2N & 0.1W Valley Springs · Structure no. 000000050329160

Built
1934
91 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
Daily traffic
112
2022 count
Owner
County
County Highway Agency

About this bridge

260th Street over Trib to Beaver Ck is a steel stringer/multi-beam or girder carrying 260th Street over Trib to Beaver Ck in Minnehaha County, South Dakota. It was built in 1934, so it is 91 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 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. Its operating status is: posted for load restriction.

It carries about 112 vehicles a day, roughly 2% of them trucks, projected to reach 130 by 2037. The structure is 32 ft (9.8 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries260th Street
CrossesTrib to Beaver Ck
Location2N & 0.1W Valley Springs
RouteCounty Highway 0
Coordinates43.61656, -96.47307
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.9 US tons
Inventory rating25.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width20 ft (6.2 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic112 (2022)
Projected traffic130 by 2037
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$430,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 260th Street over Trib to Beaver Ck built?

It was built in 1934, making it 91 years old in 2025.

What condition is 260th Street over Trib to Beaver Ck 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 June 2024.

How much traffic does 260th Street over Trib to Beaver Ck carry?

About 112 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 260th Street over Trib to Beaver Ck?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 20 ft wide.

Who owns 260th Street over Trib to Beaver Ck?

It is owned by the County Highway Agency.