US Bridges

Cth N over Soo Line

Poor

Chippewa County, Wisconsin · 0.6 M W Cth F · Structure no. B09001700000000

Built
1960
65 years old
Condition
Poor
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
165 ft
3 main spans
Daily traffic
815
2023 count
Owner
County
County Highway Agency

About this bridge

Cth N over Soo Line is a steel continuous stringer/multi-beam or girder carrying Cth N over Soo Line in Chippewa 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 815 vehicles a day, projected to reach 862 by 2042. The structure is 165 ft (50.4 m) long and 31 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesCth N
CrossesSoo Line
Location0.6 M W Cth F
RouteCounty Highway 0N
CountyChippewa County
StateWisconsin
Coordinates44.94444, -91.51958
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.4 US tons
Inventory rating19.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length165 ft (50.4 m)
Longest span61 ft (18.6 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic815 (2023)
Projected traffic862 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5.6 mi (9 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$876,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cth N over Soo Line built?

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

What condition is Cth N over Soo Line 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 November 2023.

How much traffic does Cth N over Soo Line carry?

About 815 vehicles per day (2023 count).

How long is Cth N over Soo Line?

The structure is 165 ft (50.4 m) long with a longest span of 61 ft (18.6 m) and a deck 31 ft wide.

Who owns Cth N over Soo Line?

It is owned by the County Highway Agency.