US Bridges

466th Avenue over Blind Creek

Fair

Lincoln County, South Dakota · 2.7N of Jct. Sd HWY 46 · Structure no. 000000042020264

Built
1964
61 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
93 ft
3 main spans
Daily traffic
252
2022 count
Owner
County
County Highway Agency

About this bridge

466th Avenue over Blind Creek is a concrete continuous slab carrying 466th Avenue over Blind Creek in Lincoln County, South Dakota. It was built in 1964, so it is 61 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 252 vehicles a day, roughly 9% of them trucks, projected to reach 259 by 2032. The structure is 93 ft (28.3 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries466th Avenue
CrossesBlind Creek
Location2.7N of Jct. Sd HWY 46
RouteCounty Highway 0
Coordinates43.12382, -96.88489
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.7 US tons
Inventory rating32.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length93 ft (28.3 m)
Longest span33 ft (10.1 m)
Deck width34 ft (10.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic252 (2022)
Projected traffic259 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 466th Avenue over Blind Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is 466th Avenue over Blind 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 May 2023.

How much traffic does 466th Avenue over Blind Creek carry?

About 252 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is 466th Avenue over Blind Creek?

The structure is 93 ft (28.3 m) long with a longest span of 33 ft (10.1 m) and a deck 34 ft wide.

Who owns 466th Avenue over Blind Creek?

It is owned by the County Highway Agency.