US Bridges

Cth G over Coon Creek

PoorPosted for load

La Crosse County, Wisconsin · 2.0M S JCT Cth H · Structure no. B32005000000000

Built
1939
86 years old
Condition
Poor
inspected June 2024
Type
Truss - Thru
Steel
Length
108 ft
1 main span
Daily traffic
87
2022 count
Owner
County
County Highway Agency

About this bridge

Cth G over Coon Creek is a steel truss - thru carrying Cth G over Coon Creek in La Crosse County, Wisconsin. It was built in 1939, so it is 86 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 87 vehicles a day, projected to reach 95 by 2043. The structure is 108 ft (32.9 m) long and 23 ft wide. If it were closed, the detour would be 10.6 mi (17 km).

CarriesCth G
CrossesCoon Creek
Location2.0M S JCT Cth H
RouteCounty Highway 0G
Coordinates43.73, -90.9673
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.6 US tons
Inventory rating12.5 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length108 ft (32.9 m)
Longest span101 ft (30.7 m)
Deck width23 ft (7.1 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic87 (2022)
Projected traffic95 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed10.6 mi (17 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$431,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth G over Coon Creek built?

It was built in 1939, making it 86 years old in 2025.

What condition is Cth G over Coon Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does Cth G over Coon Creek carry?

About 87 vehicles per day (2022 count).

How long is Cth G over Coon Creek?

The structure is 108 ft (32.9 m) long with a longest span of 101 ft (30.7 m) and a deck 23 ft wide.

Who owns Cth G over Coon Creek?

It is owned by the County Highway Agency.