US Bridges

FR174 over Little Moose River

Good

Sawyer County, Wisconsin · 3.4 M. S. JCT Sth 77 · Structure no. 090204000001023

Built
1952
73 years old, rebuilt 2020
Condition
Good
inspected August 2023
Type
Slab
Wood or Timber
Length
27 ft
1 main span
Daily traffic
40
1978 count
Owner
Federal
U.S. Forest Service

About this bridge

FR174 over Little Moose River is a wood or timber slab carrying FR174 over Little Moose River in Sawyer County, Wisconsin. It was built in 1952 and reconstructed in 2020, so it is 73 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 40 vehicles a day, projected to reach 60 by 2045. The structure is 27 ft (8.1 m) long and 18 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesFR174
CrossesLittle Moose River
Location3.4 M. S. JCT Sth 77
RouteFederal Lands Road 174
Coordinates46.05058, -90.99467
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating38.9 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHL 93
Structure length27 ft (8.1 m)
Longest span25 ft (7.7 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (1978)
Projected traffic60 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 FR174 over Little Moose River built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 2020.

What condition is FR174 over Little Moose River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does FR174 over Little Moose River carry?

About 40 vehicles per day (1978 count).

How long is FR174 over Little Moose River?

The structure is 27 ft (8.1 m) long with a longest span of 25 ft (7.7 m) and a deck 18 ft wide.

Who owns FR174 over Little Moose River?

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