US Bridges

Cth K over Mill Creek

Fair

Wood County, Wisconsin · 2.2M N JCT Cth N · Structure no. B71001400000000

Built
1959
66 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
84 ft
2 main spans
Daily traffic
630
2021 count
Owner
County
County Highway Agency

About this bridge

Cth K over Mill Creek is a concrete continuous slab carrying Cth K over Mill Creek in Wood County, Wisconsin. It was built in 1959, so it is 66 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 630 vehicles a day, projected to reach 756 by 2041. The structure is 84 ft (25.5 m) long and 27 ft wide. If it were closed, the detour would be 13.7 mi (22 km).

Location

Open in Google Maps
CarriesCth K
CrossesMill Creek
Location2.2M N JCT Cth N
RouteCounty Highway 0K
CountyWood County
StateWisconsin
Coordinates44.58751, -89.98481
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection8 Very GoodNo problems noted.
Last inspectionJune 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50.4 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length84 ft (25.5 m)
Longest span41 ft (12.5 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic630 (2021)
Projected traffic756 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13.7 mi (22 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 K over Mill Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is Cth K over Mill 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 June 2023.

How much traffic does Cth K over Mill Creek carry?

About 630 vehicles per day (2021 count).

How long is Cth K over Mill Creek?

The structure is 84 ft (25.5 m) long with a longest span of 41 ft (12.5 m) and a deck 27 ft wide.

Who owns Cth K over Mill Creek?

It is owned by the County Highway Agency.