US Bridges

Cth N (dead End) over Br Mccartney Branch

PoorPosted for load

Grant County, Wisconsin · 1.8 M S JCT Sth 133 · Structure no. P22029000000000

Built
1890
135 years old
Condition
Poor
inspected August 2024
Type
Girder and Floorbeam System
Steel
Length
28 ft
1 main span
Daily traffic
240
2022 count
Owner
County
County Highway Agency

About this bridge

Cth N (dead End) over Br Mccartney Branch is a steel girder and floorbeam system carrying Cth N (dead End) over Br Mccartney Branch in Grant County, Wisconsin. It was built in 1890, so it is 135 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. Its operating status is: posted for load restriction.

It carries about 240 vehicles a day, projected to reach 241 by 2043. The structure is 28 ft (8.5 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCth N (dead End)
CrossesBr Mccartney Branch
Location1.8 M S JCT Sth 133
RouteCounty Highway 0N
Coordinates42.68256, -90.85111
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating12.6 US tons
Inventory rating7.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span27 ft (8.2 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic240 (2022)
Projected traffic241 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$150,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth N (dead End) over Br Mccartney Branch built?

It was built in 1890, making it 135 years old in 2025.

What condition is Cth N (dead End) over Br Mccartney Branch 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 August 2024.

How much traffic does Cth N (dead End) over Br Mccartney Branch carry?

About 240 vehicles per day (2022 count).

How long is Cth N (dead End) over Br Mccartney Branch?

The structure is 28 ft (8.5 m) long with a longest span of 27 ft (8.2 m) and a deck 16 ft wide.

Who owns Cth N (dead End) over Br Mccartney Branch?

It is owned by the County Highway Agency.