US Bridges

M-55 over Hope Creek

Fair

Iosco County, Michigan · 1.5 MI W of M-65 · Structure no. 000000000004121

Built
1928
97 years old, rebuilt 2008
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
126 ft
3 main spans
Daily traffic
2,529
2007 count
Owner
State
State Highway Agency

About this bridge

M-55 over Hope Creek is a steel stringer/multi-beam or girder carrying M-55 over Hope Creek in Iosco County, Michigan. It was built in 1928 and reconstructed in 2008, so it is 97 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 2,529 vehicles a day, roughly 15% of them trucks, projected to reach 3,686 by 2018. The structure is 126 ft (38.4 m) long and 35 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesM-55
CrossesHope Creek
Location1.5 MI W of M-65
RouteState Highway 55
CountyIosco County
StateMichigan
Coordinates44.27703, -83.83069
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72.5 US tons
Inventory rating43.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length126 ft (38.4 m)
Longest span42 ft (12.9 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,529 (2007)
Projected traffic3,686 by 2018
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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-55 over Hope Creek built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 2008.

What condition is M-55 over Hope 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 May 2024.

How much traffic does M-55 over Hope Creek carry?

About 2,529 vehicles per day (2007 count), of which roughly 15% are trucks.

How long is M-55 over Hope Creek?

The structure is 126 ft (38.4 m) long with a longest span of 42 ft (12.9 m) and a deck 35 ft wide.

Who owns M-55 over Hope Creek?

It is owned by the State Highway Agency.