US Bridges

M-52 over Looking Glass River

Fair

Shiawassee County, Michigan · 2.6 MI N of I-69 · Structure no. 000000000009723

Built
2000
25 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
10,212
2007 count
Owner
State
State Highway Agency

About this bridge

M-52 over Looking Glass River is a prestressed concrete box beam or girders - single or spread carrying M-52 over Looking Glass River in Shiawassee County, Michigan. It was built in 2000, so it is 25 years old, younger than the Michigan average of 48.3 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 10,212 vehicles a day, roughly 5% of them trucks, projected to reach 13,177 by 2018. The structure is 77 ft (23.5 m) long and 47 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesM-52
CrossesLooking Glass River
Location2.6 MI N of I-69
RouteState Highway 52
CountyShiawassee County
StateMichigan
Coordinates42.87875, -84.22167
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.9 US tons
Inventory rating23.6 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length77 ft (23.5 m)
Longest span74 ft (22.6 m)
Deck width47 ft (14.2 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,212 (2007)
Projected traffic13,177 by 2018
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was M-52 over Looking Glass River built?

It was built in 2000, making it 25 years old in 2025.

What condition is M-52 over Looking Glass 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 July 2023.

How much traffic does M-52 over Looking Glass River carry?

About 10,212 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is M-52 over Looking Glass River?

The structure is 77 ft (23.5 m) long with a longest span of 74 ft (22.6 m) and a deck 47 ft wide.

Who owns M-52 over Looking Glass River?

It is owned by the State Highway Agency.