US Bridges

FR 2134 over Rat River

Fair

Forest County, Wisconsin · 7.8 MI N of JCT Cth C · Structure no. 090605000001009

Built
1962
63 years old, rebuilt 1985
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
102 ft
4 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

FR 2134 over Rat River is a prestressed concrete box beam or girders - multiple carrying FR 2134 over Rat River in Forest County, Wisconsin. It was built in 1962 and reconstructed in 1985, so it is 63 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 5 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 102 ft (31 m) long and 15 ft wide. If it were closed, the detour would be 10.6 mi (17 km).

Location

Open in Google Maps
CarriesFR 2134
CrossesRat River
Location7.8 MI N of JCT Cth C
RouteFederal Lands Road 21340
CountyForest County
StateWisconsin
Coordinates45.48338, -88.49782
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.3 US tons
Inventory rating23.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans4
Design loadHS 20
Structure length102 ft (31 m)
Longest span24 ft (7.2 m)
Deck width15 ft (4.6 m)
Roadway width15 ft (4.6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FR 2134 over Rat River built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1985.

What condition is FR 2134 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 2134 over Rat River carry?

About 50 vehicles per day (latest count).

How long is FR 2134 over Rat River?

The structure is 102 ft (31 m) long with a longest span of 24 ft (7.2 m) and a deck 15 ft wide.

Who owns FR 2134 over Rat River?

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