US Bridges

FR1666 over Br Fishtrap Creek

Fair

Sawyer County, Wisconsin · 6.0 M. S. JCT Cth Gg · Structure no. 090204000001016

Built
1937
88 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
20
1978 count
Owner
Federal
U.S. Forest Service

About this bridge

FR1666 over Br Fishtrap Creek is a steel stringer/multi-beam or girder carrying FR1666 over Br Fishtrap Creek in Sawyer County, Wisconsin. It was built in 1937, so it is 88 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 20 vehicles a day, projected to reach 30 by 2045. The structure is 25 ft (7.7 m) long and 16 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesFR1666
CrossesBr Fishtrap Creek
Location6.0 M. S. JCT Cth Gg
RouteFederal Lands Road 1666
CountySawyer County
StateWisconsin
Coordinates45.98399, -90.93396
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating36 US tons
Inventory rating27.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length25 ft (7.7 m)
Longest span24 ft (7.3 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (1978)
Projected traffic30 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was FR1666 over Br Fishtrap Creek built?

It was built in 1937, making it 88 years old in 2025.

What condition is FR1666 over Br Fishtrap Creek 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 August 2023.

How much traffic does FR1666 over Br Fishtrap Creek carry?

About 20 vehicles per day (1978 count).

How long is FR1666 over Br Fishtrap Creek?

The structure is 25 ft (7.7 m) long with a longest span of 24 ft (7.3 m) and a deck 16 ft wide.

Who owns FR1666 over Br Fishtrap Creek?

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