US Bridges

FR2266 over Sixmile Brook

Fair

Cass County, Minnesota · 6 MI S of TH 2 · Structure no. 090303000001022

Built
1966
59 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
23 ft
1 main span
Daily traffic
5
1978 count
Owner
Federal
U.S. Forest Service

About this bridge

FR2266 over Sixmile Brook is a steel stringer/multi-beam or girder carrying FR2266 over Sixmile Brook in Cass County, Minnesota. It was built in 1966, so it is 59 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 5 vehicles a day, projected to reach 7 by 2045. The structure is 23 ft (7 m) long and 26 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesFR2266
CrossesSixmile Brook
Location6 MI S of TH 2
RouteFederal Lands Road 2266
CountyCass County
StateMinnesota
Coordinates47.27004, -94.0631
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 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 alignment6: Equal to present minimum criteria
Operating rating45.3 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span22 ft (6.7 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (1978)
Projected traffic7 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FR2266 over Sixmile Brook built?

It was built in 1966, making it 59 years old in 2025.

What condition is FR2266 over Sixmile Brook 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 April 2024.

How much traffic does FR2266 over Sixmile Brook carry?

About 5 vehicles per day (1978 count).

How long is FR2266 over Sixmile Brook?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.7 m) and a deck 26 ft wide.

Who owns FR2266 over Sixmile Brook?

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