US Bridges

M 512 over Channel to Cedar Lk

Good

Hennepin County, Minnesota · 0.6 MI NW of Lake ST · Structure no. L5729

Built
1911
114 years old
Condition
Good
inspected May 2024
Type
Arch - Deck
Concrete
Length
59 ft
1 main span
Daily traffic
6,000
2015 count
Owner
Local
Local Park, Forest, or Reservation Agency

About this bridge

M 512 over Channel to Cedar Lk is a concrete arch - deck carrying M 512 over Channel to Cedar Lk in Hennepin County, Minnesota. It was built in 1911, so it is 114 years old, older 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 6,000 vehicles a day, projected to reach 6,000 by 2034. The structure is 59 ft (18 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesM 512
CrossesChannel to Cedar Lk
Location0.6 MI NW of Lake ST
RouteCity Street 512
Coordinates44.95471, -93.31203
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating32.4 US tons
Inventory rating21.6 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length59 ft (18 m)
Longest span50 ft (15.2 m)
Deck width55 ft (16.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,000 (2015)
Projected traffic6,000 by 2034
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerLocal Park, Forest, or Reservation Agency
Maintained byLocal Park, Forest, or Reservation Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was M 512 over Channel to Cedar Lk built?

It was built in 1911, making it 114 years old in 2025.

What condition is M 512 over Channel to Cedar Lk 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 M 512 over Channel to Cedar Lk carry?

About 6,000 vehicles per day (2015 count).

How long is M 512 over Channel to Cedar Lk?

The structure is 59 ft (18 m) long with a longest span of 50 ft (15.2 m) and a deck 55 ft wide.

Who owns M 512 over Channel to Cedar Lk?

It is owned by the Local Park, Forest, or Reservation Agency.