US Bridges

Csah 5 over Willow River

Good

Aitkin County, Minnesota · 1.5 MI N of JCT Csah 3 · Structure no. 01539

Built
2024
1 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
126 ft
3 main spans
Daily traffic
85
2024 count
Owner
County
County Highway Agency

About this bridge

Csah 5 over Willow River is a concrete continuous slab carrying Csah 5 over Willow River in Aitkin County, Minnesota. It was built in 2024, so it is 1 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 85 vehicles a day, projected to reach 85 by 2043. The structure is 126 ft (38.3 m) long and 35 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesCsah 5
CrossesWillow River
Location1.5 MI N of JCT Csah 3
RouteCounty Highway 5
Coordinates46.73476, -93.48489
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58.2 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length126 ft (38.3 m)
Longest span48 ft (14.6 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic85 (2024)
Projected traffic85 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 5 over Willow River built?

It was built in 2024, making it 1 years old in 2025.

What condition is Csah 5 over Willow 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 November 2024.

How much traffic does Csah 5 over Willow River carry?

About 85 vehicles per day (2024 count).

How long is Csah 5 over Willow River?

The structure is 126 ft (38.3 m) long with a longest span of 48 ft (14.6 m) and a deck 35 ft wide.

Who owns Csah 5 over Willow River?

It is owned by the County Highway Agency.