US Bridges

Ush 18-STH 60 over Mississippi River 02

Fair

Crawford County, Wisconsin · 0.7M E Iowa State Line · Structure no. B12002800000000

Built
1974
51 years old
Condition
Fair
inspected August 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
1,917 ft
10 main spans
Daily traffic
8,800
2022 count
Owner
State
State Highway Agency

About this bridge

Ush 18-STH 60 over Mississippi River 02 is a steel continuous girder and floorbeam system carrying Ush 18-STH 60 over Mississippi River 02 in Crawford County, Wisconsin. It was built in 1974, so it is 51 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 8,800 vehicles a day, roughly 15% of them trucks, projected to reach 11,160 by 2039. The structure is 1,917 ft (584.4 m) long and 44 ft wide. If it were closed, the detour would be 62.8 mi (101 km).

Location

Open in Google Maps
CarriesUsh 18-STH 60
CrossesMississippi River 02
Location0.7M E Iowa State Line
RouteU.S. Route 18
CountyCrawford County
StateWisconsin
Coordinates43.04533, -91.16238
Functional classUrban Other Principal Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.7 US tons
Inventory rating34 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length1,917 ft (584.4 m)
Longest span350 ft (106.7 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,800 (2022)
Projected traffic11,160 by 2039
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.8 mi (101 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Ush 18-STH 60 over Mississippi River 02 built?

It was built in 1974, making it 51 years old in 2025.

What condition is Ush 18-STH 60 over Mississippi River 02 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 August 2023.

How much traffic does Ush 18-STH 60 over Mississippi River 02 carry?

About 8,800 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Ush 18-STH 60 over Mississippi River 02?

The structure is 1,917 ft (584.4 m) long with a longest span of 350 ft (106.7 m) and a deck 44 ft wide.

Who owns Ush 18-STH 60 over Mississippi River 02?

It is owned by the State Highway Agency.