US Bridges

Csah 12 over Red Eye River

Good

Wadena County, Minnesota · 4.1 MI E of JCT TH 71 · Structure no. 80002

Built
1984
41 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
89 ft
3 main spans
Daily traffic
715
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 12 over Red Eye River is a steel continuous stringer/multi-beam or girder carrying Csah 12 over Red Eye River in Wadena County, Minnesota. It was built in 1984, so it is 41 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 715 vehicles a day, roughly 2% of them trucks, projected to reach 580 by 2041. The structure is 89 ft (27 m) long and 50 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesCsah 12
CrossesRed Eye River
Location4.1 MI E of JCT TH 71
RouteCounty Highway 12
Coordinates46.62997, -95.00742
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating51.7 US tons
Inventory rating30.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length89 ft (27 m)
Longest span34 ft (10.4 m)
Deck width50 ft (15.3 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic715 (2021)
Projected traffic580 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 12 over Red Eye River built?

It was built in 1984, making it 41 years old in 2025.

What condition is Csah 12 over Red Eye 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 2023.

How much traffic does Csah 12 over Red Eye River carry?

About 715 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Csah 12 over Red Eye River?

The structure is 89 ft (27 m) long with a longest span of 34 ft (10.4 m) and a deck 50 ft wide.

Who owns Csah 12 over Red Eye River?

It is owned by the County Highway Agency.