US Bridges

FR2101 over Willow River

Fair

Cass County, Minnesota · 0.5 Mi. SE of JCT TH 6 · Structure no. 090303000001001

Built
1964
61 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
10
1978 count
Owner
Federal
U.S. Forest Service

About this bridge

FR2101 over Willow River is a steel stringer/multi-beam or girder carrying FR2101 over Willow River in Cass County, Minnesota. It was built in 1964, so it is 61 years old, older than the Minnesota average of 38.5 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 10 vehicles a day, projected to reach 15 by 2045. The structure is 50 ft (15.2 m) long and 26 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

CarriesFR2101
CrossesWillow River
Location0.5 Mi. SE of JCT TH 6
RouteFederal Lands Road 2101
Coordinates47.09071, -93.85159
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMay 2023
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.2 US tons
Inventory rating63.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span48 ft (14.6 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (1978)
Projected traffic15 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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 FR2101 over Willow River built?

It was built in 1964, making it 61 years old in 2025.

What condition is FR2101 over Willow 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 May 2023.

How much traffic does FR2101 over Willow River carry?

About 10 vehicles per day (1978 count).

How long is FR2101 over Willow River?

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 26 ft wide.

Who owns FR2101 over Willow River?

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