US Bridges

465th Avenue over Trib. to Stray Horse Crk

Good

Hamlin County, South Dakota · 1.6N & 6E of Castlewood · Structure no. 000000029290034

Built
2020
5 years old
Condition
Good
inspected July 2024
Type
Culvert
Steel
Length
36 ft
4 main spans
Daily traffic
80
2022 count
Owner
County
County Highway Agency

About this bridge

465th Avenue over Trib. to Stray Horse Crk is a steel culvert carrying 465th Avenue over Trib. to Stray Horse Crk in Hamlin County, South Dakota. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 80 vehicles a day, projected to reach 98 by 2035. The structure is 36 ft (11.1 m) long and 19 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries465th Avenue
CrossesTrib. to Stray Horse Crk
Location1.6N & 6E of Castlewood
Coordinates44.75558, -96.90514
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
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating92.2 US tons
Inventory rating71 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHL 93
Structure length36 ft (11.1 m)
Longest span7 ft (2.1 m)
Deck width19 ft (5.8 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2022)
Projected traffic98 by 2035
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 465th Avenue over Trib. to Stray Horse Crk built?

It was built in 2020, making it 5 years old in 2025.

What condition is 465th Avenue over Trib. to Stray Horse Crk 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 July 2024.

How much traffic does 465th Avenue over Trib. to Stray Horse Crk carry?

About 80 vehicles per day (2022 count).

How long is 465th Avenue over Trib. to Stray Horse Crk?

The structure is 36 ft (11.1 m) long with a longest span of 7 ft (2.1 m) and a deck 19 ft wide.

Who owns 465th Avenue over Trib. to Stray Horse Crk?

It is owned by the County Highway Agency.