US Bridges

Cth Z over Branch River

Poor

Brown County, Wisconsin · 0.1M E JCT Cth G · Structure no. P05014100000000

Built
1900
125 years old, rebuilt 1949
Condition
Poor
inspected September 2024
Type
Culvert
Steel
Length
33 ft
2 main spans
Daily traffic
840
2022 count
Owner
County
County Highway Agency

About this bridge

Cth Z over Branch River is a steel culvert carrying Cth Z over Branch River in Brown County, Wisconsin. It was built in 1900 and reconstructed in 1949, so it is 125 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 840 vehicles a day, projected to reach 1,008 by 2042. The structure is 33 ft (10.2 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCth Z
CrossesBranch River
Location0.1M E JCT Cth G
RouteCounty Highway 0Z
CountyBrown County
StateWisconsin
Coordinates44.28475, -87.94805
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 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 alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating21.4 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length33 ft (10.2 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic840 (2022)
Projected traffic1,008 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$235,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth Z over Branch River built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1949.

What condition is Cth Z over Branch 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 September 2024.

How much traffic does Cth Z over Branch River carry?

About 840 vehicles per day (2022 count).

How long is Cth Z over Branch River?

The structure is 33 ft (10.2 m) long with a longest span of 15 ft (4.6 m).

Who owns Cth Z over Branch River?

It is owned by the County Highway Agency.