US Bridges

38830 281 ST over Andes Ck

Good

Douglas County, South Dakota · 3.7W .5S Armour · Structure no. 000000022143130

Built
1962
63 years old, rebuilt 2011
Condition
Good
inspected July 2023
Type
Tee Beam
Concrete
Length
31 ft
1 main span
Daily traffic
206
2022 count
Owner
County
County Highway Agency

About this bridge

38830 281 ST over Andes Ck is a concrete tee beam carrying 38830 281 ST over Andes Ck in Douglas County, South Dakota. It was built in 1962 and reconstructed in 2011, so it is 63 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 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 206 vehicles a day, roughly 2% of them trucks, projected to reach 206 by 2032. The structure is 31 ft (9.6 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries38830 281 ST
CrossesAndes Ck
Location3.7W .5S Armour
RouteCounty Highway 0
Coordinates43.31217, -98.41563
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 protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length31 ft (9.6 m)
Longest span31 ft (9.3 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic206 (2022)
Projected traffic206 by 2032
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$25,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 38830 281 ST over Andes Ck built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2011.

What condition is 38830 281 ST over Andes Ck 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 2023.

How much traffic does 38830 281 ST over Andes Ck carry?

About 206 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 38830 281 ST over Andes Ck?

The structure is 31 ft (9.6 m) long with a longest span of 31 ft (9.3 m) and a deck 31 ft wide.

Who owns 38830 281 ST over Andes Ck?

It is owned by the County Highway Agency.