US Bridges

Mn 36 over Keller Lake

Good

Ramsey County, Minnesota · 0.4 MI W of JCT TH 61 · Structure no. 62037

Built
2013
12 years old
Condition
Good
inspected May 2024
Type
Tee Beam
Prestressed Concrete
Length
118 ft
3 main spans
Daily traffic
69,704
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 36 over Keller Lake is a prestressed concrete tee beam carrying Mn 36 over Keller Lake in Ramsey County, Minnesota. It was built in 2013, so it is 12 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 69,704 vehicles a day, roughly 2% of them trucks, projected to reach 66,000 by 2042. The structure is 118 ft (36 m) long and 90 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMn 36
CrossesKeller Lake
Location0.4 MI W of JCT TH 61
RouteState Highway 36
Coordinates45.01148, -93.06281
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.8 US tons
Inventory rating47.2 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length118 ft (36 m)
Longest span47 ft (14.2 m)
Deck width90 ft (27.4 m)
Roadway width84 ft (25.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic69,704 (2022)
Projected traffic66,000 by 2042
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 36 over Keller Lake built?

It was built in 2013, making it 12 years old in 2025.

What condition is Mn 36 over Keller Lake 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 May 2024.

How much traffic does Mn 36 over Keller Lake carry?

About 69,704 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Mn 36 over Keller Lake?

The structure is 118 ft (36 m) long with a longest span of 47 ft (14.2 m) and a deck 90 ft wide.

Who owns Mn 36 over Keller Lake?

It is owned by the State Highway Agency.