US Bridges

Ush 12-USH 18 over Mud Creek

Good

Dane County, Wisconsin · 0.3M E JCT Sth 73 to S · Structure no. B13035800000000

Built
1988
37 years old, rebuilt 2015
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
10,000
2022 count
Owner
State
State Highway Agency

About this bridge

Ush 12-USH 18 over Mud Creek is a concrete continuous culvert carrying Ush 12-USH 18 over Mud Creek in Dane County, Wisconsin. It was built in 1988 and reconstructed in 2015, so it is 37 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,000 vehicles a day, roughly 11% of them trucks, projected to reach 12,000 by 2042. The structure is 26 ft (8 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUsh 12-USH 18
CrossesMud Creek
Location0.3M E JCT Sth 73 to S
RouteU.S. Route 12
Coordinates43.0212, -89.06794
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating52.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length26 ft (8 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2022)
Projected traffic12,000 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Ush 12-USH 18 over Mud Creek built?

It was built in 1988, making it 37 years old in 2025. It was reconstructed in 2015.

What condition is Ush 12-USH 18 over Mud Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does Ush 12-USH 18 over Mud Creek carry?

About 10,000 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Ush 12-USH 18 over Mud Creek?

The structure is 26 ft (8 m) long with a longest span of 12 ft (3.7 m).

Who owns Ush 12-USH 18 over Mud Creek?

It is owned by the State Highway Agency.