US Bridges

US085 over Battle Ck

Fair

Butte County, South Dakota · 12.7 S Harding CO Line · Structure no. 000000010249129

Built
1965
60 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
129 ft
5 main spans
Daily traffic
1,190
2024 count
Owner
State
State Highway Agency

About this bridge

US085 over Battle Ck is a concrete continuous slab carrying US085 over Battle Ck in Butte County, South Dakota. It was built in 1965, so it is 60 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 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 1,190 vehicles a day, roughly 31% of them trucks, projected to reach 1,708 by 2044. The structure is 129 ft (39.2 m) long and 34 ft wide. If it were closed, the detour would be 42.9 mi (69 km).

CarriesUS085
CrossesBattle Ck
Location12.7 S Harding CO Line
RouteU.S. Route 85
Coordinates45.02672, -103.54864
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating39.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length129 ft (39.2 m)
Longest span26 ft (7.8 m)
Deck width34 ft (10.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,190 (2024)
Projected traffic1,708 by 2044
Trucks31%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed42.9 mi (69 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US085 over Battle Ck built?

It was built in 1965, making it 60 years old in 2025.

What condition is US085 over Battle 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 April 2024.

How much traffic does US085 over Battle Ck carry?

About 1,190 vehicles per day (2024 count), of which roughly 31% are trucks.

How long is US085 over Battle Ck?

The structure is 129 ft (39.2 m) long with a longest span of 26 ft (7.8 m) and a deck 34 ft wide.

Who owns US085 over Battle Ck?

It is owned by the State Highway Agency.