US Bridges

Csah 5 over Big Fork River

Good

Koochiching County, Minnesota · 1.7 MI S of JCT CR 62 · Structure no. 36522

Built
1996
29 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
196 ft
3 main spans
Daily traffic
35
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 5 over Big Fork River is a prestressed concrete stringer/multi-beam or girder carrying Csah 5 over Big Fork River in Koochiching County, Minnesota. It was built in 1996, so it is 29 years old, younger 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 35 vehicles a day, projected to reach 70 by 2042. The structure is 196 ft (59.6 m) long and 39 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesCsah 5
CrossesBig Fork River
Location1.7 MI S of JCT CR 62
RouteCounty Highway 5
Coordinates47.90505, -93.61138
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.4 US tons
Inventory rating44.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length196 ft (59.6 m)
Longest span102 ft (31.2 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2022)
Projected traffic70 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 5 over Big Fork River built?

It was built in 1996, making it 29 years old in 2025.

What condition is Csah 5 over Big Fork 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 September 2024.

How much traffic does Csah 5 over Big Fork River carry?

About 35 vehicles per day (2022 count).

How long is Csah 5 over Big Fork River?

The structure is 196 ft (59.6 m) long with a longest span of 102 ft (31.2 m) and a deck 39 ft wide.

Who owns Csah 5 over Big Fork River?

It is owned by the County Highway Agency.