US Bridges

Mn 1 over Flint Creek

Good

St. Louis County, Minnesota · 5.3 MI W of Cook · Structure no. 69043

Built
2009
16 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
105 ft
1 main span
Daily traffic
399
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 1 over Flint Creek is a prestressed concrete stringer/multi-beam or girder carrying Mn 1 over Flint Creek in St. Louis County, Minnesota. It was built in 2009, so it is 16 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 399 vehicles a day, roughly 6% of them trucks, projected to reach 480 by 2042. The structure is 105 ft (32.1 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMn 1
CrossesFlint Creek
Location5.3 MI W of Cook
RouteState Highway 1
Coordinates47.86243, -92.79611
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 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 rating81 US tons
Inventory rating37.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length105 ft (32.1 m)
Longest span104 ft (31.6 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic399 (2022)
Projected traffic480 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 Mn 1 over Flint Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is Mn 1 over Flint Creek 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 May 2024.

How much traffic does Mn 1 over Flint Creek carry?

About 399 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Mn 1 over Flint Creek?

The structure is 105 ft (32.1 m) long with a longest span of 104 ft (31.6 m) and a deck 39 ft wide.

Who owns Mn 1 over Flint Creek?

It is owned by the State Highway Agency.