US Bridges

Ush 18 over Duck Creek

Good

Jefferson County, Wisconsin · 0.4M E JCT Cth P · Structure no. B28005500000000

Built
1964
61 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
1,800
2022 count
Owner
State
State Highway Agency

About this bridge

Ush 18 over Duck Creek is a concrete continuous culvert carrying Ush 18 over Duck Creek in Jefferson County, Wisconsin. It was built in 1964, so it is 61 years old, older 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 1,800 vehicles a day, roughly 11% of them trucks, projected to reach 1,390 by 2044. The structure is 26 ft (8 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesUsh 18
CrossesDuck Creek
Location0.4M E JCT Cth P
RouteU.S. Route 18
Coordinates43.01326, -88.63834
Functional classRural Minor Arterial

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 inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating28.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
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 traffic1,800 (2022)
Projected traffic1,390 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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 18 over Duck Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Ush 18 over Duck 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 January 2025.

How much traffic does Ush 18 over Duck Creek carry?

About 1,800 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Ush 18 over Duck Creek?

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

Who owns Ush 18 over Duck Creek?

It is owned by the State Highway Agency.