US Bridges

M-25|S Lakeshore R over Rock Falls Creek

Good

Huron County, Michigan · 2.1 MI S of Harbor Beach · Structure no. 000000000003482

Built
2003
22 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
1,957
2007 count
Owner
State
State Highway Agency

About this bridge

M-25|S Lakeshore R over Rock Falls Creek is a prestressed concrete stringer/multi-beam or girder carrying M-25|S Lakeshore R over Rock Falls Creek in Huron County, Michigan. It was built in 2003, so it is 22 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 1,957 vehicles a day, roughly 6% of them trucks, projected to reach 2,516 by 2018. The structure is 53 ft (16.3 m) long and 46 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesM-25|S Lakeshore R
CrossesRock Falls Creek
Location2.1 MI S of Harbor Beach
RouteState Highway 25
CountyHuron County
StateMichigan
Coordinates43.81821, -82.63529
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
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 geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating40.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length53 ft (16.3 m)
Longest span52 ft (15.8 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,957 (2007)
Projected traffic2,516 by 2018
Trucks6%
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-25|S Lakeshore R over Rock Falls Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is M-25|S Lakeshore R over Rock Falls 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 December 2023.

How much traffic does M-25|S Lakeshore R over Rock Falls Creek carry?

About 1,957 vehicles per day (2007 count), of which roughly 6% are trucks.

How long is M-25|S Lakeshore R over Rock Falls Creek?

The structure is 53 ft (16.3 m) long with a longest span of 52 ft (15.8 m) and a deck 46 ft wide.

Who owns M-25|S Lakeshore R over Rock Falls Creek?

It is owned by the State Highway Agency.