US Bridges

Cth J over IH 90 @ MP 20

Fair

La Crosse County, Wisconsin · 0.4M N JCT Cth B · Structure no. B32006500000000

Built
1968
57 years old, rebuilt 2009
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
211 ft
2 main spans
Daily traffic
1,800
2021 count
Owner
State
State Highway Agency

About this bridge

Cth J over IH 90 @ MP 20 is a steel continuous stringer/multi-beam or girder carrying Cth J over IH 90 @ MP 20 in La Crosse County, Wisconsin. It was built in 1968 and reconstructed in 2009, so it is 57 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 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 1,800 vehicles a day, projected to reach 6,380 by 2042. The structure is 211 ft (64.3 m) long and 36 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesCth J
CrossesIH 90 @ MP 20
Location0.4M N JCT Cth B
RouteCounty Highway 0J
CountyLa Crosse County
StateWisconsin
Coordinates43.89858, -90.91986
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.2 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length211 ft (64.3 m)
Longest span107 ft (32.6 m)
Deck width36 ft (10.9 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2021)
Projected traffic6,380 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cth J over IH 90 @ MP 20 built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2009.

What condition is Cth J over IH 90 @ MP 20 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 June 2023.

How much traffic does Cth J over IH 90 @ MP 20 carry?

About 1,800 vehicles per day (2021 count).

How long is Cth J over IH 90 @ MP 20?

The structure is 211 ft (64.3 m) long with a longest span of 107 ft (32.6 m) and a deck 36 ft wide.

Who owns Cth J over IH 90 @ MP 20?

It is owned by the State Highway Agency.