US Bridges

SD040 over Battle Ck

Fair

Custer County, South Dakota · 2.4 W JCT Sd 79 · Structure no. 000000017408029

Built
1974
51 years old
Condition
Fair
inspected March 2025
Type
Slab
Concrete Continuous
Length
170 ft
4 main spans
Daily traffic
992
2024 count
Owner
State
State Highway Agency

About this bridge

SD040 over Battle Ck is a concrete continuous slab carrying SD040 over Battle Ck in Custer County, South Dakota. It was built in 1974, so it is 51 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 992 vehicles a day, roughly 3% of them trucks, projected to reach 1,618 by 2044. The structure is 170 ft (51.8 m) long and 35 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSD040
CrossesBattle Ck
Location2.4 W JCT Sd 79
RouteState Highway 40
Coordinates43.82912, -103.23973
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2025
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 geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating81.8 US tons
Inventory rating49.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length170 ft (51.8 m)
Longest span46 ft (13.9 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic992 (2024)
Projected traffic1,618 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

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 SD040 over Battle Ck built?

It was built in 1974, making it 51 years old in 2025.

What condition is SD040 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 March 2025.

How much traffic does SD040 over Battle Ck carry?

About 992 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is SD040 over Battle Ck?

The structure is 170 ft (51.8 m) long with a longest span of 46 ft (13.9 m) and a deck 35 ft wide.

Who owns SD040 over Battle Ck?

It is owned by the State Highway Agency.