US Bridges

Mn 36 over ST Croix RIVER-TH95-UPRR

Fair

Washington County, Minnesota · 0.09 M E of JCT TH95 · Structure no. 82045

Built
2017
8 years old
Condition
Fair
inspected August 2023
Type
Stayed Girder
Prestressed Concrete Continuous
Length
5,079 ft
6 main spans
Daily traffic
26,332
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 36 over ST Croix RIVER-TH95-UPRR is a prestressed concrete continuous stayed girder carrying Mn 36 over ST Croix RIVER-TH95-UPRR in Washington County, Minnesota. It was built in 2017, so it is 8 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 26,332 vehicles a day, roughly 8% of them trucks, projected to reach 21,100 by 2042. The structure is 5,079 ft (1,548.1 m) long and 98 ft wide.

Location

Open in Google Maps
CarriesMn 36
CrossesST Croix RIVER-TH95-UPRR
Location0.09 M E of JCT TH95
RouteState Highway 36
CountyWashington County
StateMinnesota
Coordinates45.04202, -92.78508
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeStayed Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans6 (+8 approach)
Design loadHL 93
Structure length5,079 ft (1,548.1 m)
Longest span600 ft (182.9 m)
Deck width98 ft (30 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,332 (2022)
Projected traffic21,100 by 2042
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway, waterway and railroad
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Mn 36 over ST Croix RIVER-TH95-UPRR built?

It was built in 2017, making it 8 years old in 2025.

What condition is Mn 36 over ST Croix RIVER-TH95-UPRR 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 August 2023.

How much traffic does Mn 36 over ST Croix RIVER-TH95-UPRR carry?

About 26,332 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Mn 36 over ST Croix RIVER-TH95-UPRR?

The structure is 5,079 ft (1,548.1 m) long with a longest span of 600 ft (182.9 m) and a deck 98 ft wide.

Who owns Mn 36 over ST Croix RIVER-TH95-UPRR?

It is owned by the State Highway Agency.