US Bridges

I090 E over Deadman Gulch

Fair

Meade County, South Dakota · 0.3 NW Sturgis Interch · Structure no. 000000047028444

Built
1963
62 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
117 ft
5 main spans
Daily traffic
11,255
2024 count
Owner
State
State Highway Agency

About this bridge

I090 E over Deadman Gulch is a concrete continuous slab carrying I090 E over Deadman Gulch in Meade 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 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 11,255 vehicles a day, roughly 16% of them trucks, projected to reach 17,760 by 2044. The structure is 117 ft (35.7 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI090 E
CrossesDeadman Gulch
Location0.3 NW Sturgis Interch
RouteInterstate 90
Coordinates44.39749, -103.51273
Functional classUrban 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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.1 US tons
Inventory rating27.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length117 ft (35.7 m)
Longest span23 ft (7.1 m)
Deck width44 ft (13.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,255 (2024)
Projected traffic17,760 by 2044
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I090 E over Deadman Gulch built?

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

What condition is I090 E over Deadman Gulch 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 November 2024.

How much traffic does I090 E over Deadman Gulch carry?

About 11,255 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is I090 E over Deadman Gulch?

The structure is 117 ft (35.7 m) long with a longest span of 23 ft (7.1 m) and a deck 44 ft wide.

Who owns I090 E over Deadman Gulch?

It is owned by the State Highway Agency.