US Bridges

473rd Avenue over Beaver Creek

Fair

Lincoln County, South Dakota · 1.2N & 1E of Worthing · Structure no. 000000042090108

Built
1985
40 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Prestressed Concrete
Length
67 ft
1 main span
Daily traffic
45
2022 count
Owner
County
County Highway Agency

About this bridge

473rd Avenue over Beaver Creek is a prestressed concrete tee beam carrying 473rd Avenue over Beaver Creek in Lincoln County, South Dakota. It was built in 1985, so it is 40 years old, younger 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 45 vehicles a day, roughly 2% of them trucks, projected to reach 45 by 2032. The structure is 67 ft (20.4 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries473rd Avenue
CrossesBeaver Creek
Location1.2N & 1E of Worthing
RouteCounty Highway 0
Coordinates43.34633, -96.74729
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
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 rating36 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length67 ft (20.4 m)
Longest span65 ft (19.8 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)
Projected traffic45 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 473rd Avenue over Beaver Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is 473rd Avenue over Beaver 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 473rd Avenue over Beaver Creek carry?

About 45 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 473rd Avenue over Beaver Creek?

The structure is 67 ft (20.4 m) long with a longest span of 65 ft (19.8 m) and a deck 28 ft wide.

Who owns 473rd Avenue over Beaver Creek?

It is owned by the County Highway Agency.