US Bridges

Cth Jj over Bear Grass Creek

Fair

Eau Claire County, Wisconsin · 0.3M W Cth V · Structure no. P18090800000000

Built
1956
69 years old
Condition
Fair
inspected October 2024
Type
Slab
Wood or Timber
Length
25 ft
1 main span
Daily traffic
258
2024 count
Owner
County
County Highway Agency

About this bridge

Cth Jj over Bear Grass Creek is a wood or timber slab carrying Cth Jj over Bear Grass Creek in Eau Claire County, Wisconsin. It was built in 1956, so it is 69 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 258 vehicles a day, projected to reach 281 by 2043. The structure is 25 ft (7.6 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCth Jj
CrossesBear Grass Creek
Location0.3M W Cth V
RouteCounty Highway 0JJ
Coordinates44.70544, -91.22236
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 rating70.2 US tons
Inventory rating48.2 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 15
Structure length25 ft (7.6 m)
Longest span23 ft (6.9 m)
Deck width26 ft (8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic258 (2024)
Projected traffic281 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth Jj over Bear Grass Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Cth Jj over Bear Grass Creek 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 October 2024.

How much traffic does Cth Jj over Bear Grass Creek carry?

About 258 vehicles per day (2024 count).

How long is Cth Jj over Bear Grass Creek?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (6.9 m) and a deck 26 ft wide.

Who owns Cth Jj over Bear Grass Creek?

It is owned by the County Highway Agency.