US Bridges

FR 2141 over Rat River

Fair

Forest County, Wisconsin · 5.2 MI N of JCT C · Structure no. 090605000001014

Built
1951
74 years old, rebuilt 1987
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
58 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

FR 2141 over Rat River is a steel stringer/multi-beam or girder carrying FR 2141 over Rat River in Forest County, Wisconsin. It was built in 1951 and reconstructed in 1987, so it is 74 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 50 vehicles a day, projected to reach 100 by 2012. The structure is 58 ft (17.6 m) long and 17 ft wide. If it were closed, the detour would be 10.6 mi (17 km).

Location

Open in Google Maps
CarriesFR 2141
CrossesRat River
Location5.2 MI N of JCT C
RouteFederal Lands Road 21411
CountyForest County
StateWisconsin
Coordinates45.4808, -88.44542
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating42.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length58 ft (17.6 m)
Longest span56 ft (17 m)
Deck width17 ft (5.1 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic100 by 2012
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed10.6 mi (17 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$40,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FR 2141 over Rat River built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 1987.

What condition is FR 2141 over Rat River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does FR 2141 over Rat River carry?

About 50 vehicles per day (latest count).

How long is FR 2141 over Rat River?

The structure is 58 ft (17.6 m) long with a longest span of 56 ft (17 m) and a deck 17 ft wide.

Who owns FR 2141 over Rat River?

It is owned by the U.S. Forest Service.