US Bridges

Cth C over Peshtigo River

Poor

Marinette County, Wisconsin · 2.1M E JCT Cth F · Structure no. P38091800000000

Built
1975
50 years old
Condition
Poor
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
103 ft
1 main span
Daily traffic
900
2024 count
Owner
County
County Highway Agency

About this bridge

Cth C over Peshtigo River is a prestressed concrete box beam or girders - multiple carrying Cth C over Peshtigo River in Marinette County, Wisconsin. It was built in 1975, so it is 50 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.

It carries about 900 vehicles a day, projected to reach 1,080 by 2042. The structure is 103 ft (31.5 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesCth C
CrossesPeshtigo River
Location2.1M E JCT Cth F
RouteCounty Highway 0C
CountyMarinette County
StateWisconsin
Coordinates45.38764, -88.30489
Functional classRural Major Collector

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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.2 US tons
Inventory rating50 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length103 ft (31.5 m)
Longest span100 ft (30.5 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2024)
Projected traffic1,080 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$574,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth C over Peshtigo River built?

It was built in 1975, making it 50 years old in 2025.

What condition is Cth C over Peshtigo River 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 October 2024.

How much traffic does Cth C over Peshtigo River carry?

About 900 vehicles per day (2024 count).

How long is Cth C over Peshtigo River?

The structure is 103 ft (31.5 m) long with a longest span of 100 ft (30.5 m) and a deck 33 ft wide.

Who owns Cth C over Peshtigo River?

It is owned by the County Highway Agency.