US Bridges

M-28 over Presque Isle River

Fair

Gogebic County, Michigan · 1.6 MI W of Ontonagon Col · Structure no. 000000000002970

Built
1934
91 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
239 ft
4 main spans
Daily traffic
1,403
2014 count
Owner
State
State Highway Agency

About this bridge

M-28 over Presque Isle River is a steel stringer/multi-beam or girder carrying M-28 over Presque Isle River in Gogebic County, Michigan. It was built in 1934, so it is 91 years old, older 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 5 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 1,403 vehicles a day, roughly 9% of them trucks, projected to reach 1,613 by 2034. The structure is 239 ft (72.8 m) long and 32 ft wide. If it were closed, the detour would be 57.2 mi (92 km).

Location

Open in Google Maps
CarriesM-28
CrossesPresque Isle River
Location1.6 MI W of Ontonagon Col
RouteState Highway 28
CountyGogebic County
StateMichigan
Coordinates46.54698, -89.77719
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
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 alignment6: Equal to present minimum criteria
Operating rating61.4 US tons
Inventory rating36.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length239 ft (72.8 m)
Longest span60 ft (18.3 m)
Deck width32 ft (9.9 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,403 (2014)
Projected traffic1,613 by 2034
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed57.2 mi (92 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was M-28 over Presque Isle River built?

It was built in 1934, making it 91 years old in 2025.

What condition is M-28 over Presque Isle 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 May 2023.

How much traffic does M-28 over Presque Isle River carry?

About 1,403 vehicles per day (2014 count), of which roughly 9% are trucks.

How long is M-28 over Presque Isle River?

The structure is 239 ft (72.8 m) long with a longest span of 60 ft (18.3 m) and a deck 32 ft wide.

Who owns M-28 over Presque Isle River?

It is owned by the State Highway Agency.