US Bridges

Auto Tour Road over Lake Creek

FairPosted for load

Bennett County, South Dakota · Dike 8-SCT 16-S of Office · Structure no. 000064540-00054

Built
1936
89 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
75 ft
5 main spans
Daily traffic
15
2024 count
Owner
Federal
Bureau of Fish and Wildlife

About this bridge

Auto Tour Road over Lake Creek is a concrete continuous slab carrying Auto Tour Road over Lake Creek in Bennett County, South Dakota. It was built in 1936, so it is 89 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. Its operating status is: posted for load restriction.

It carries about 15 vehicles a day, projected to reach 15 by 2044. The structure is 75 ft (22.9 m) long and 12 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesAuto Tour Road
CrossesLake Creek
LocationDike 8-SCT 16-S of Office
RouteFederal Lands Road 0
CountyBennett County
StateSouth Dakota
Coordinates43.097, -101.5645
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating14 US tons
Inventory rating6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length75 ft (22.9 m)
Longest span16 ft (4.9 m)
Deck width12 ft (3.7 m)
Roadway width10 ft (3 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic15 (2024)
Projected traffic15 by 2044
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Fish and Wildlife
Maintained byBureau of Fish and Wildlife
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$512,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Auto Tour Road over Lake Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is Auto Tour Road over Lake Creek 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 August 2024.

How much traffic does Auto Tour Road over Lake Creek carry?

About 15 vehicles per day (2024 count).

How long is Auto Tour Road over Lake Creek?

The structure is 75 ft (22.9 m) long with a longest span of 16 ft (4.9 m) and a deck 12 ft wide.

Who owns Auto Tour Road over Lake Creek?

It is owned by the Bureau of Fish and Wildlife.