US Bridges

Csah 1 over Long Prairie River

Good

Todd County, Minnesota · 1.3 MI S of JCT CR 65 · Structure no. 77536

Built
2017
8 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
104 ft
1 main span
Daily traffic
340
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 1 over Long Prairie River is a prestressed concrete stringer/multi-beam or girder carrying Csah 1 over Long Prairie River in Todd County, Minnesota. It was built in 2017, so it is 8 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 340 vehicles a day, projected to reach 358 by 2038. The structure is 104 ft (31.7 m) long and 37 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCsah 1
CrossesLong Prairie River
Location1.3 MI S of JCT CR 65
RouteCounty Highway 1
CountyTodd County
StateMinnesota
Coordinates45.97823, -95.10496
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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 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 geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length104 ft (31.7 m)
Longest span102 ft (31.1 m)
Deck width37 ft (11.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2018)
Projected traffic358 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 1 over Long Prairie River built?

It was built in 2017, making it 8 years old in 2025.

What condition is Csah 1 over Long Prairie 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 1 over Long Prairie River carry?

About 340 vehicles per day (2018 count).

How long is Csah 1 over Long Prairie River?

The structure is 104 ft (31.7 m) long with a longest span of 102 ft (31.1 m) and a deck 37 ft wide.

Who owns Csah 1 over Long Prairie River?

It is owned by the County Highway Agency.