US Bridges

475th Avenue over West Brule Creek

FairPosted for load

Lincoln County, South Dakota · 3E & 1.4N of Beresford · Structure no. 000000042110276

Built
1936
89 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
48 ft
2 main spans
Daily traffic
35
2022 count
Owner
County
County Highway Agency

About this bridge

475th Avenue over West Brule Creek is a steel stringer/multi-beam or girder carrying 475th Avenue over West Brule Creek in Lincoln 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 5 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 35 vehicles a day, roughly 2% of them trucks, projected to reach 35 by 2032. The structure is 48 ft (14.6 m) long and 19 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries475th Avenue
CrossesWest Brule Creek
Location3E & 1.4N of Beresford
Coordinates43.10399, -96.70713
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating13.9 US tons
Inventory rating10.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length48 ft (14.6 m)
Longest span23 ft (7 m)
Deck width19 ft (5.9 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2022)
Projected traffic35 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 475th Avenue over West Brule Creek built?

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

What condition is 475th Avenue over West Brule 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 2024.

How much traffic does 475th Avenue over West Brule Creek carry?

About 35 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 475th Avenue over West Brule Creek?

The structure is 48 ft (14.6 m) long with a longest span of 23 ft (7 m) and a deck 19 ft wide.

Who owns 475th Avenue over West Brule Creek?

It is owned by the County Highway Agency.