US Bridges

CR 90 over Long Prairie River

Good

Todd County, Minnesota · 0.5 MI E of JCT TH 71 · Structure no. 77534

Built
2008
17 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
139 ft
3 main spans
Daily traffic
70
2018 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

CR 90 over Long Prairie River is a concrete continuous slab carrying CR 90 over Long Prairie River in Todd County, Minnesota. It was built in 2008, so it is 17 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 70 vehicles a day, projected to reach 105 by 2038. The structure is 139 ft (42.4 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCR 90
CrossesLong Prairie River
Location0.5 MI E of JCT TH 71
RouteCounty Highway 90
Coordinates46.0525, -94.85745
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating79.4 US tons
Inventory rating47.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length139 ft (42.4 m)
Longest span52 ft (15.9 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2018)
Projected traffic105 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 CR 90 over Long Prairie River built?

It was built in 2008, making it 17 years old in 2025.

What condition is CR 90 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 2024.

How much traffic does CR 90 over Long Prairie River carry?

About 70 vehicles per day (2018 count).

How long is CR 90 over Long Prairie River?

The structure is 139 ft (42.4 m) long with a longest span of 52 ft (15.9 m) and a deck 35 ft wide.

Who owns CR 90 over Long Prairie River?

It is owned by the Town or Township Highway Agency.