US Bridges

Ush 18/STH 35/STH over Drainage Channel

Fair

Crawford County, Wisconsin · At Old 18 Road Int · Structure no. B12018700000000

Built
2016
9 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
6,600
2022 count
Owner
State
State Highway Agency

About this bridge

Ush 18/STH 35/STH over Drainage Channel is a concrete culvert carrying Ush 18/STH 35/STH over Drainage Channel in Crawford County, Wisconsin. It was built in 2016, so it is 9 years old, younger 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 6,600 vehicles a day, roughly 10% of them trucks, projected to reach 10,800 by 2043. The structure is 24 ft (7.3 m) long and 210 ft wide. If it were closed, the detour would be 38.5 mi (62 km).

Location

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CarriesUsh 18/STH 35/STH
CrossesDrainage Channel
LocationAt Old 18 Road Int
RouteU.S. Route 18
CountyCrawford County
StateWisconsin
Coordinates43.01411, -91.09836
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length24 ft (7.3 m)
Longest span8 ft (2.4 m)
Deck width210 ft (64 m)
Roadway width90 ft (27.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,600 (2022)
Projected traffic10,800 by 2043
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed38.5 mi (62 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 18/STH 35/STH over Drainage Channel built?

It was built in 2016, making it 9 years old in 2025.

What condition is Ush 18/STH 35/STH over Drainage Channel 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 Ush 18/STH 35/STH over Drainage Channel carry?

About 6,600 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Ush 18/STH 35/STH over Drainage Channel?

The structure is 24 ft (7.3 m) long with a longest span of 8 ft (2.4 m) and a deck 210 ft wide.

Who owns Ush 18/STH 35/STH over Drainage Channel?

It is owned by the State Highway Agency.