US Bridges

FR2171 over Mississippi River

Good

Beltrami County, Minnesota · 4.1 MI NE of JCT Csah 10 · Structure no. 090302000001031

Built
1971
54 years old, rebuilt 2018
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
184 ft
3 main spans
Daily traffic
34
2010 count
Owner
Federal
U.S. Forest Service

About this bridge

FR2171 over Mississippi River is a prestressed concrete stringer/multi-beam or girder carrying FR2171 over Mississippi River in Beltrami County, Minnesota. It was built in 1971 and reconstructed in 2018, so it is 54 years old, older than the Minnesota average of 38.5 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 34 vehicles a day, projected to reach 51 by 2045. The structure is 184 ft (56.2 m) long and 34 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesFR2171
CrossesMississippi River
Location4.1 MI NE of JCT Csah 10
RouteFederal Lands Road 2171
Coordinates47.4447, -94.4255
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 inspectionFebruary 2025
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 geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.5 US tons
Inventory rating29.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length184 ft (56.2 m)
Longest span60 ft (18.2 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34 (2010)
Projected traffic51 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$115 million
NavigationNo navigation control on waterway

Frequently asked questions

When was FR2171 over Mississippi River built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2018.

What condition is FR2171 over Mississippi 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 February 2025.

How much traffic does FR2171 over Mississippi River carry?

About 34 vehicles per day (2010 count).

How long is FR2171 over Mississippi River?

The structure is 184 ft (56.2 m) long with a longest span of 60 ft (18.2 m) and a deck 34 ft wide.

Who owns FR2171 over Mississippi River?

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