US Bridges

Csah 3 over Otter Tail River

Good

Otter Tail County, Minnesota · 1.3 MI N of JCT Csah 10 · Structure no. 56526

Built
1996
29 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
275 ft
3 main spans
Daily traffic
710
2015 count
Owner
County
County Highway Agency

About this bridge

Csah 3 over Otter Tail River is a prestressed concrete stringer/multi-beam or girder carrying Csah 3 over Otter Tail River in Otter Tail 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 710 vehicles a day, projected to reach 710 by 2039. The structure is 275 ft (83.9 m) long and 57 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCsah 3
CrossesOtter Tail River
Location1.3 MI N of JCT Csah 10
RouteCounty Highway 3
Coordinates46.388, -95.98975
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
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 geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.6 US tons
Inventory rating36.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length275 ft (83.9 m)
Longest span93 ft (28.4 m)
Deck width57 ft (17.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic710 (2015)
Projected traffic710 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.1 mi (13 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 3 over Otter Tail River built?

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

What condition is Csah 3 over Otter Tail 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 October 2024.

How much traffic does Csah 3 over Otter Tail River carry?

About 710 vehicles per day (2015 count).

How long is Csah 3 over Otter Tail River?

The structure is 275 ft (83.9 m) long with a longest span of 93 ft (28.4 m) and a deck 57 ft wide.

Who owns Csah 3 over Otter Tail River?

It is owned by the County Highway Agency.