US Bridges

Mn 33 over US 53 SB

Good

St. Louis County, Minnesota · At the JCT TH 33; 53 · Structure no. 69065

Built
2012
13 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
92 ft
1 main span
Daily traffic
1,850
2019 count
Owner
State
State Highway Agency

About this bridge

Mn 33 over US 53 SB is a prestressed concrete stringer/multi-beam or girder carrying Mn 33 over US 53 SB in St. Louis County, Minnesota. It was built in 2012, so it is 13 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 1,850 vehicles a day, roughly 7% of them trucks, projected to reach 1,750 by 2039. The structure is 92 ft (27.9 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMn 33
CrossesUS 53 SB
LocationAt the JCT TH 33; 53
RouteState Highway 33
Coordinates46.95542, -92.45657
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating72 US tons
Inventory rating33.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length92 ft (27.9 m)
Longest span90 ft (27.3 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,850 (2019)
Projected traffic1,750 by 2039
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mn 33 over US 53 SB built?

It was built in 2012, making it 13 years old in 2025.

What condition is Mn 33 over US 53 SB 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 2024.

How much traffic does Mn 33 over US 53 SB carry?

About 1,850 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is Mn 33 over US 53 SB?

The structure is 92 ft (27.9 m) long with a longest span of 90 ft (27.3 m) and a deck 35 ft wide.

Who owns Mn 33 over US 53 SB?

It is owned by the State Highway Agency.