US Bridges

383 Avenue over Flat Draw

Good

Jerauld County, South Dakota · 1E 2S Wess. Springs · Structure no. 000000037190104

Built
1963
62 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete Continuous
Length
41 ft
3 main spans
Daily traffic
180
2022 count
Owner
County
County Highway Agency

About this bridge

383 Avenue over Flat Draw is a concrete continuous culvert carrying 383 Avenue over Flat Draw in Jerauld County, South Dakota. It was built in 1963, so it is 62 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 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 180 vehicles a day, roughly 3% of them trucks, projected to reach 180 by 2032. The structure is 41 ft (12.5 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Carries383 Avenue
CrossesFlat Draw
Location1E 2S Wess. Springs
RouteCounty Highway 0
Coordinates44.04689, -98.55221
Functional classRural Major Collector

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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating28.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length41 ft (12.5 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2022)
Projected traffic180 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 383 Avenue over Flat Draw built?

It was built in 1963, making it 62 years old in 2025.

What condition is 383 Avenue over Flat Draw 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 August 2024.

How much traffic does 383 Avenue over Flat Draw carry?

About 180 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is 383 Avenue over Flat Draw?

The structure is 41 ft (12.5 m) long with a longest span of 8 ft (2.4 m).

Who owns 383 Avenue over Flat Draw?

It is owned by the County Highway Agency.