US Bridges

29590 436th Avenue over James River

FairPosted for load

Yankton County, South Dakota · 8.1N & 0.5E of Utica · Structure no. 000000068076048

Built
1957
68 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
427 ft
6 main spans
Daily traffic
78
2022 count
Owner
County
County Highway Agency

About this bridge

29590 436th Avenue over James River is a steel stringer/multi-beam or girder carrying 29590 436th Avenue over James River in Yankton County, South Dakota. It was built in 1957, so it is 68 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 78 vehicles a day, roughly 3% of them trucks, projected to reach 78 by 2032. The structure is 427 ft (130 m) long and 26 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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Carries29590 436th Avenue
CrossesJames River
Location8.1N & 0.5E of Utica
RouteCounty Highway 0
CountyYankton County
StateSouth Dakota
Coordinates43.09889, -97.48633
Functional classRural Major Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.6 US tons
Inventory rating16.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length427 ft (130 m)
Longest span89 ft (27.2 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78 (2022)
Projected traffic78 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$7.8 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 29590 436th Avenue over James River built?

It was built in 1957, making it 68 years old in 2025.

What condition is 29590 436th Avenue over James River 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 July 2024.

How much traffic does 29590 436th Avenue over James River carry?

About 78 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is 29590 436th Avenue over James River?

The structure is 427 ft (130 m) long with a longest span of 89 ft (27.2 m) and a deck 26 ft wide.

Who owns 29590 436th Avenue over James River?

It is owned by the County Highway Agency.