US Bridges

Mn 1 over East Two Rivers

Good

St. Louis County, Minnesota · 0.2 MI W of Tower · Structure no. 69682

Built
2011
14 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
3,520
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 1 over East Two Rivers is a prestressed concrete stringer/multi-beam or girder carrying Mn 1 over East Two Rivers in St. Louis County, Minnesota. It was built in 2011, so it is 14 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 3,520 vehicles a day, roughly 11% of them trucks, projected to reach 3,800 by 2042. The structure is 80 ft (24.3 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMn 1
CrossesEast Two Rivers
Location0.2 MI W of Tower
RouteState Highway 1
Coordinates47.80368, -92.28242
Functional classRural Minor Arterial

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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating36.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHL 93
Structure length80 ft (24.3 m)
Longest span76 ft (23.2 m)
Deck width62 ft (19 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,520 (2022)
Projected traffic3,800 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 East Two Rivers built?

It was built in 2011, making it 14 years old in 2025.

What condition is Mn 1 over East Two Rivers 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 Mn 1 over East Two Rivers carry?

About 3,520 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Mn 1 over East Two Rivers?

The structure is 80 ft (24.3 m) long with a longest span of 76 ft (23.2 m) and a deck 62 ft wide.

Who owns Mn 1 over East Two Rivers?

It is owned by the State Highway Agency.