US Bridges

Cth Z over Scuppernong River

Poor

Waukesha County, Wisconsin · 0.4M N JCT Sth 59 · Structure no. P67092400000000

Built
1978
47 years old
Condition
Poor
inspected October 2024
Type
Culvert
Steel
Length
28 ft
3 main spans
Daily traffic
471
2022 count
Owner
County
County Highway Agency

About this bridge

Cth Z over Scuppernong River is a steel culvert carrying Cth Z over Scuppernong River in Waukesha County, Wisconsin. It was built in 1978, so it is 47 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 471 vehicles a day, projected to reach 518 by 2043. The structure is 28 ft (8.4 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesCth Z
CrossesScuppernong River
Location0.4M N JCT Sth 59
RouteCounty Highway 0Z
CountyWaukesha County
StateWisconsin
Coordinates42.88588, -88.54141
Functional classRural Local

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 inspectionOctober 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.4 US tons
Inventory rating21.4 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckCorrugated steel
Main spans3
Design loadHS 20
Structure length28 ft (8.4 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic471 (2022)
Projected traffic518 by 2043
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$172,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth Z over Scuppernong River built?

It was built in 1978, making it 47 years old in 2025.

What condition is Cth Z over Scuppernong 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 Z over Scuppernong River carry?

About 471 vehicles per day (2022 count).

How long is Cth Z over Scuppernong River?

The structure is 28 ft (8.4 m) long with a longest span of 6 ft (1.8 m).

Who owns Cth Z over Scuppernong River?

It is owned by the County Highway Agency.