US Bridges

Cth C over Eagle Creek

Fair

Marinette County, Wisconsin · 4.1M W JCT Cth a · Structure no. B38002800000000

Built
1935
90 years old, rebuilt 1990
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
710
2024 count
Owner
County
County Highway Agency

About this bridge

Cth C over Eagle Creek is a prestressed concrete box beam or girders - multiple carrying Cth C over Eagle Creek in Marinette County, Wisconsin. It was built in 1935 and reconstructed in 1990, so it is 90 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 710 vehicles a day, projected to reach 852 by 2042. The structure is 38 ft (11.6 m) long and 31 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesCth C
CrossesEagle Creek
Location4.1M W JCT Cth a
RouteCounty Highway 0C
CountyMarinette County
StateWisconsin
Coordinates45.40108, -88.18578
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span35 ft (10.6 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic710 (2024)
Projected traffic852 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 C over Eagle Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1990.

What condition is Cth C over Eagle 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 C over Eagle Creek carry?

About 710 vehicles per day (2024 count).

How long is Cth C over Eagle Creek?

The structure is 38 ft (11.6 m) long with a longest span of 35 ft (10.6 m) and a deck 31 ft wide.

Who owns Cth C over Eagle Creek?

It is owned by the County Highway Agency.