US Bridges

US 169 over Prairie River

Good

Itasca County, Minnesota · 1.8 MI NE of E JCT TH 2 · Structure no. 31015

Built
1993
32 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
315 ft
3 main spans
Daily traffic
6,100
2019 count
Owner
State
State Highway Agency

About this bridge

US 169 over Prairie River is a prestressed concrete stringer/multi-beam or girder carrying US 169 over Prairie River in Itasca County, Minnesota. It was built in 1993, so it is 32 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 6,100 vehicles a day, roughly 8% of them trucks, projected to reach 6,200 by 2039. The structure is 315 ft (96 m) long and 51 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS 169
CrossesPrairie River
Location1.8 MI NE of E JCT TH 2
RouteU.S. Route 169
Coordinates47.24544, -93.48687
Functional classUrban Other Principal Arterial

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 protection7 GoodSome minor problems.
Last inspectionJune 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.9 US tons
Inventory rating39.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length315 ft (96 m)
Longest span103 ft (31.5 m)
Deck width51 ft (15.6 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,100 (2019)
Projected traffic6,200 by 2039
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 169 over Prairie River built?

It was built in 1993, making it 32 years old in 2025.

What condition is US 169 over 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 June 2023.

How much traffic does US 169 over Prairie River carry?

About 6,100 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is US 169 over Prairie River?

The structure is 315 ft (96 m) long with a longest span of 103 ft (31.5 m) and a deck 51 ft wide.

Who owns US 169 over Prairie River?

It is owned by the State Highway Agency.