US Bridges

460th Avenue over West Br Skunk Ck

Good

Minnehaha County, South Dakota · 3E & 5.1N Humboldt · Structure no. 000000050060089

Built
2014
11 years old
Condition
Good
inspected June 2023
Type
Tee Beam
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
39
2023 count
Owner
County
County Highway Agency

About this bridge

460th Avenue over West Br Skunk Ck is a prestressed concrete tee beam carrying 460th Avenue over West Br Skunk Ck in Minnehaha County, South Dakota. It was built in 2014, so it is 11 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 39 vehicles a day, roughly 2% of them trucks, projected to reach 45 by 2038. The structure is 55 ft (16.8 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries460th Avenue
CrossesWest Br Skunk Ck
Location3E & 5.1N Humboldt
RouteCounty Highway 0
Coordinates43.71904, -97.00983
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length55 ft (16.8 m)
Longest span53 ft (16.2 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39 (2023)
Projected traffic45 by 2038
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$562,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 460th Avenue over West Br Skunk Ck built?

It was built in 2014, making it 11 years old in 2025.

What condition is 460th Avenue over West Br Skunk Ck in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does 460th Avenue over West Br Skunk Ck carry?

About 39 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is 460th Avenue over West Br Skunk Ck?

The structure is 55 ft (16.8 m) long with a longest span of 53 ft (16.2 m) and a deck 31 ft wide.

Who owns 460th Avenue over West Br Skunk Ck?

It is owned by the County Highway Agency.