US Bridges

Cth N over Deer Creek

Poor

Jefferson County, Wisconsin · 1.2M N JCT Sth 106 · Structure no. P28090900000000

Built
1960
65 years old
Condition
Poor
inspected July 2024
Type
Culvert
Steel
Length
42 ft
2 main spans
Daily traffic
2,537
2022 count
Owner
County
County Highway Agency

About this bridge

Cth N over Deer Creek is a steel culvert carrying Cth N over Deer Creek in Jefferson County, Wisconsin. It was built in 1960, so it is 65 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 2,537 vehicles a day, projected to reach 2,790 by 2043. The structure is 42 ft (12.7 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesCth N
CrossesDeer Creek
Location1.2M N JCT Sth 106
RouteCounty Highway 0N
CountyJefferson County
StateWisconsin
Coordinates42.954, -88.79364
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.4 US tons
Inventory rating21.4 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 15
Structure length42 ft (12.7 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,537 (2022)
Projected traffic2,790 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$275,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth N over Deer Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Cth N over Deer Creek 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 July 2024.

How much traffic does Cth N over Deer Creek carry?

About 2,537 vehicles per day (2022 count).

How long is Cth N over Deer Creek?

The structure is 42 ft (12.7 m) long with a longest span of 14 ft (4.3 m).

Who owns Cth N over Deer Creek?

It is owned by the County Highway Agency.