US Bridges

US 169 over Mississippi River

Good

Aitkin County, Minnesota · 2.9 MI N of N JCT TH 210 · Structure no. 01004

Built
1990
35 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
322 ft
4 main spans
Daily traffic
2,380
2022 count
Owner
State
State Highway Agency

About this bridge

US 169 over Mississippi River is a prestressed concrete stringer/multi-beam or girder carrying US 169 over Mississippi River in Aitkin County, Minnesota. It was built in 1990, so it is 35 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 2,380 vehicles a day, roughly 12% of them trucks, projected to reach 2,350 by 2042. The structure is 322 ft (98 m) long and 46 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesUS 169
CrossesMississippi River
Location2.9 MI N of N JCT TH 210
RouteU.S. Route 169
Coordinates46.65113, -93.61275
Functional classRural Principal Arterial - Other

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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.1 US tons
Inventory rating33.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length322 ft (98 m)
Longest span95 ft (29 m)
Deck width46 ft (14 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,380 (2022)
Projected traffic2,350 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 Mississippi River built?

It was built in 1990, making it 35 years old in 2025.

What condition is US 169 over Mississippi 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 August 2024.

How much traffic does US 169 over Mississippi River carry?

About 2,380 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is US 169 over Mississippi River?

The structure is 322 ft (98 m) long with a longest span of 95 ft (29 m) and a deck 46 ft wide.

Who owns US 169 over Mississippi River?

It is owned by the State Highway Agency.