US Bridges

Mn 33 over White Pine River

Fair

St. Louis County, Minnesota · 5.2 MI N of JCT TH 45 · Structure no. 69117

Built
1990
35 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
81 ft
2 main spans
Daily traffic
2,352
2021 count
Owner
State
State Highway Agency

About this bridge

Mn 33 over White Pine River is a concrete continuous slab carrying Mn 33 over White Pine River in St. Louis 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,352 vehicles a day, roughly 7% of them trucks, projected to reach 2,900 by 2041. The structure is 81 ft (24.7 m) long and 50 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesMn 33
CrossesWhite Pine River
Location5.2 MI N of JCT TH 45
RouteState Highway 33
CountySt. Louis County
StateMinnesota
Coordinates46.79901, -92.44952
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.5 US tons
Inventory rating50.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length81 ft (24.7 m)
Longest span37 ft (11.4 m)
Deck width50 ft (15.3 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,352 (2021)
Projected traffic2,900 by 2041
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 Mn 33 over White Pine River built?

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

What condition is Mn 33 over White Pine River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does Mn 33 over White Pine River carry?

About 2,352 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Mn 33 over White Pine River?

The structure is 81 ft (24.7 m) long with a longest span of 37 ft (11.4 m) and a deck 50 ft wide.

Who owns Mn 33 over White Pine River?

It is owned by the State Highway Agency.