US Bridges

Unu 52 over I 35W

Poor

Hennepin County, Minnesota · 3.1 MI SW of JCT TH 280 · Structure no. 27883

Built
1967
58 years old
Condition
Poor
inspected September 2024
Type
Slab
Concrete Continuous
Length
191 ft
4 main spans
Daily traffic
6,575
2021 count
Owner
State
State Highway Agency

About this bridge

Unu 52 over I 35W is a concrete continuous slab carrying Unu 52 over I 35W in Hennepin County, Minnesota. It was built in 1967, so it is 58 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 6,575 vehicles a day, roughly 7% of them trucks, projected to reach 6,900 by 2041. The structure is 191 ft (58.1 m) long and 70 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUnu 52
CrossesI 35W
Location3.1 MI SW of JCT TH 280
RouteU.S. Route 52
Coordinates44.98326, -93.24271
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating73.7 US tons
Inventory rating44.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length191 ft (58.1 m)
Longest span61 ft (18.6 m)
Deck width70 ft (21.4 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,575 (2021)
Projected traffic6,900 by 2041
Trucks7%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Unu 52 over I 35W built?

It was built in 1967, making it 58 years old in 2025.

What condition is Unu 52 over I 35W in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Unu 52 over I 35W carry?

About 6,575 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Unu 52 over I 35W?

The structure is 191 ft (58.1 m) long with a longest span of 61 ft (18.6 m) and a deck 70 ft wide.

Who owns Unu 52 over I 35W?

It is owned by the State Highway Agency.