US Bridges

Sth 11 over Skinner Creek

Fair

Green County, Wisconsin · 0.5M E JCT Cth M to N · Structure no. B23004100000000

Built
1979
46 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete
Length
146 ft
3 main spans
Daily traffic
5,500
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 11 over Skinner Creek is a concrete slab carrying Sth 11 over Skinner Creek in Green County, Wisconsin. It was built in 1979, so it is 46 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 5 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 5,500 vehicles a day, roughly 9% of them trucks, projected to reach 7,540 by 2044. The structure is 146 ft (44.4 m) long and 47 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSth 11
CrossesSkinner Creek
Location0.5M E JCT Cth M to N
RouteState Highway 11
CountyGreen County
StateWisconsin
Coordinates42.58951, -89.77843
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.9 US tons
Inventory rating42.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length146 ft (44.4 m)
Longest span58 ft (17.7 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,500 (2022)
Projected traffic7,540 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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 Sth 11 over Skinner Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Sth 11 over Skinner 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 February 2025.

How much traffic does Sth 11 over Skinner Creek carry?

About 5,500 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Sth 11 over Skinner Creek?

The structure is 146 ft (44.4 m) long with a longest span of 58 ft (17.7 m) and a deck 47 ft wide.

Who owns Sth 11 over Skinner Creek?

It is owned by the State Highway Agency.