US Bridges

IH 39/90/94 over Starkweather Creek

Fair

Dane County, Wisconsin · 0.9M S JCT Ush 151 to N · Structure no. B13011800000000

Built
1959
66 years old, rebuilt 2002
Condition
Fair
inspected December 2024
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
109,000
2022 count
Owner
State
State Highway Agency

About this bridge

IH 39/90/94 over Starkweather Creek is a concrete continuous culvert carrying IH 39/90/94 over Starkweather Creek in Dane County, Wisconsin. It was built in 1959 and reconstructed in 2002, so it is 66 years old, older than the Wisconsin average of 40.3 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 109,000 vehicles a day, roughly 17% of them trucks, projected to reach 130,800 by 2042. The structure is 24 ft (7.2 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIH 39/90/94
CrossesStarkweather Creek
Location0.9M S JCT Ush 151 to N
RouteInterstate 90
Coordinates43.12366, -89.29035
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length24 ft (7.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic109,000 (2022)
Projected traffic130,800 by 2042
Trucks17%
Lanes on structure8
Traffic directionTwo-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 IH 39/90/94 over Starkweather Creek built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2002.

What condition is IH 39/90/94 over Starkweather Creek 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 December 2024.

How much traffic does IH 39/90/94 over Starkweather Creek carry?

About 109,000 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is IH 39/90/94 over Starkweather Creek?

The structure is 24 ft (7.2 m) long with a longest span of 10 ft (3 m).

Who owns IH 39/90/94 over Starkweather Creek?

It is owned by the State Highway Agency.