US Bridges

M-30 over Larabee Creek

Good

Gladwin County, Michigan · In Winegars · Structure no. 000000000002888

Built
1977
48 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
33 ft
1 main span
Daily traffic
3,517
2007 count
Owner
State
State Highway Agency

About this bridge

M-30 over Larabee Creek is a prestressed concrete box beam or girders - multiple carrying M-30 over Larabee Creek in Gladwin County, Michigan. It was built in 1977, so it is 48 years old, younger than the Michigan average of 48.3 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 3,517 vehicles a day, roughly 7% of them trucks, projected to reach 5,165 by 2018. The structure is 33 ft (10 m) long and 52 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesM-30
CrossesLarabee Creek
LocationIn Winegars
RouteState Highway 30
CountyGladwin County
StateMichigan
Coordinates43.94396, -84.36593
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating77.5 US tons
Inventory rating46.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length33 ft (10 m)
Longest span33 ft (10 m)
Deck width52 ft (15.7 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,517 (2007)
Projected traffic5,165 by 2018
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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-30 over Larabee Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is M-30 over Larabee Creek 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 July 2023.

How much traffic does M-30 over Larabee Creek carry?

About 3,517 vehicles per day (2007 count), of which roughly 7% are trucks.

How long is M-30 over Larabee Creek?

The structure is 33 ft (10 m) long with a longest span of 33 ft (10 m) and a deck 52 ft wide.

Who owns M-30 over Larabee Creek?

It is owned by the State Highway Agency.