US Bridges

Cth Nn over Pine Creek

Fair

Marathon County, Wisconsin · 1.0M E JCT Sth 107 · Structure no. P37093100000000

Built
1969
56 years old
Condition
Fair
inspected September 2023
Type
Culvert
Steel
Length
22 ft
1 main span
Daily traffic
1,606
2023 count
Owner
County
County Highway Agency

About this bridge

Cth Nn over Pine Creek is a steel culvert carrying Cth Nn over Pine Creek in Marathon County, Wisconsin. It was built in 1969, so it is 56 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 1,606 vehicles a day, projected to reach 1,804 by 2042. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCth Nn
CrossesPine Creek
Location1.0M E JCT Sth 107
RouteCounty Highway 0NN
CountyMarathon County
StateWisconsin
Coordinates44.92667, -89.82281
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 15
Structure length22 ft (6.7 m)
Longest span20 ft (6.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,606 (2023)
Projected traffic1,804 by 2042
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 Nn over Pine Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is Cth Nn over Pine 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 September 2023.

How much traffic does Cth Nn over Pine Creek carry?

About 1,606 vehicles per day (2023 count).

How long is Cth Nn over Pine Creek?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.2 m).

Who owns Cth Nn over Pine Creek?

It is owned by the County Highway Agency.