US Bridges

M-24 over Plum Creek

Good

Lapeer County, Michigan · 2.8 MI N of M-21 · Structure no. 000000000005302

Built
2012
13 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
18,300
2012 count
Owner
State
State Highway Agency

About this bridge

M-24 over Plum Creek is a prestressed concrete box beam or girders - single or spread carrying M-24 over Plum Creek in Lapeer County, Michigan. It was built in 2012, so it is 13 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 18,300 vehicles a day, roughly 3% of them trucks, projected to reach 20,200 by 2032. The structure is 42 ft (12.8 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesM-24
CrossesPlum Creek
Location2.8 MI N of M-21
RouteState Highway 24
Coordinates43.09167, -83.30769
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating46.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length42 ft (12.8 m)
Longest span39 ft (11.9 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,300 (2012)
Projected traffic20,200 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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-24 over Plum Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is M-24 over Plum 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 May 2023.

How much traffic does M-24 over Plum Creek carry?

About 18,300 vehicles per day (2012 count), of which roughly 3% are trucks.

How long is M-24 over Plum Creek?

The structure is 42 ft (12.8 m) long with a longest span of 39 ft (11.9 m) and a deck 47 ft wide.

Who owns M-24 over Plum Creek?

It is owned by the State Highway Agency.