US Bridges

I090 E over 319 Ave

Fair

Lyman County, South Dakota · 4.3 E Kennebec Interch · Structure no. 000000043290220

Built
1971
54 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete Continuous
Length
113 ft
3 main spans
Daily traffic
3,955
2024 count
Owner
State
State Highway Agency

About this bridge

I090 E over 319 Ave is a concrete continuous slab carrying I090 E over 319 Ave in Lyman County, South Dakota. It was built in 1971, so it is 54 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,955 vehicles a day, roughly 28% of them trucks, projected to reach 5,648 by 2044. The structure is 113 ft (34.3 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI090 E
Crosses319 Ave
Location4.3 E Kennebec Interch
RouteInterstate 90
Coordinates43.87671, -99.78544
Functional classRural Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating31.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length113 ft (34.3 m)
Longest span40 ft (12.3 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,955 (2024)
Projected traffic5,648 by 2044
Trucks28%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I090 E over 319 Ave built?

It was built in 1971, making it 54 years old in 2025.

What condition is I090 E over 319 Ave 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 February 2024.

How much traffic does I090 E over 319 Ave carry?

About 3,955 vehicles per day (2024 count), of which roughly 28% are trucks.

How long is I090 E over 319 Ave?

The structure is 113 ft (34.3 m) long with a longest span of 40 ft (12.3 m) and a deck 41 ft wide.

Who owns I090 E over 319 Ave?

It is owned by the State Highway Agency.