US Bridges

Csah 40 over Eagle River

Good

Hubbard County, Minnesota · 1.1 MI E of JCT TH 71 · Structure no. 29533

Built
2020
5 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete Continuous
Length
69 ft
3 main spans
Daily traffic
550
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 40 over Eagle River is a concrete continuous slab carrying Csah 40 over Eagle River in Hubbard County, Minnesota. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 550 vehicles a day, roughly 11% of them trucks, projected to reach 730 by 2042. The structure is 69 ft (20.9 m) long and 35 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCsah 40
CrossesEagle River
Location1.1 MI E of JCT TH 71
RouteCounty Highway 40
Coordinates47.01576, -95.09118
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.9 US tons
Inventory rating56.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length69 ft (20.9 m)
Longest span25 ft (7.6 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2022)
Projected traffic730 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 40 over Eagle River built?

It was built in 2020, making it 5 years old in 2025.

What condition is Csah 40 over Eagle 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 August 2023.

How much traffic does Csah 40 over Eagle River carry?

About 550 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Csah 40 over Eagle River?

The structure is 69 ft (20.9 m) long with a longest span of 25 ft (7.6 m) and a deck 35 ft wide.

Who owns Csah 40 over Eagle River?

It is owned by the County Highway Agency.