US Bridges

M-26 over Central Creek

Fair

Keweenaw County, Michigan · 0.2 MI N of US-41 · Structure no. 000000000005258

Built
1988
37 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
849
2007 count
Owner
State
State Highway Agency

About this bridge

M-26 over Central Creek is a steel stringer/multi-beam or girder carrying M-26 over Central Creek in Keweenaw County, Michigan. It was built in 1988, so it is 37 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 849 vehicles a day, roughly 5% of them trucks, projected to reach 507 by 2018. The structure is 51 ft (15.5 m) long and 41 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesM-26
CrossesCentral Creek
Location0.2 MI N of US-41
RouteState Highway 26
CountyKeweenaw County
StateMichigan
Coordinates47.38928, -88.27779
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating45.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length51 ft (15.5 m)
Longest span48 ft (14.6 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic849 (2007)
Projected traffic507 by 2018
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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-26 over Central Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is M-26 over Central Creek 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 August 2024.

How much traffic does M-26 over Central Creek carry?

About 849 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is M-26 over Central Creek?

The structure is 51 ft (15.5 m) long with a longest span of 48 ft (14.6 m) and a deck 41 ft wide.

Who owns M-26 over Central Creek?

It is owned by the State Highway Agency.