US Bridges

26930 373rd Avenue over Platte Creek

Good

Charles Mix County, South Dakota · 6.7N & 6.0E of Platte · Structure no. 000000012290013

Built
2008
17 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
22
2022 count
Owner
County
County Highway Agency

About this bridge

26930 373rd Avenue over Platte Creek is a concrete continuous culvert carrying 26930 373rd Avenue over Platte Creek in Charles Mix County, South Dakota. It was built in 2008, so it is 17 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 22 vehicles a day, roughly 2% of them trucks, projected to reach 22 by 2032. The structure is 29 ft (8.7 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Carries26930 373rd Avenue
CrossesPlatte Creek
Location6.7N & 6.0E of Platte
RouteCounty Highway 0
Coordinates43.48081, -98.7265
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.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating59.7 US tons
Inventory rating36.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length29 ft (8.7 m)
Longest span14 ft (4.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22 (2022)
Projected traffic22 by 2032
Trucks2%
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 26930 373rd Avenue over Platte Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is 26930 373rd Avenue over Platte Creek 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 October 2023.

How much traffic does 26930 373rd Avenue over Platte Creek carry?

About 22 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 26930 373rd Avenue over Platte Creek?

The structure is 29 ft (8.7 m) long with a longest span of 14 ft (4.2 m).

Who owns 26930 373rd Avenue over Platte Creek?

It is owned by the County Highway Agency.