US Bridges

M-35 over E Br Escanaba River

Fair

Marquette County, Michigan · In Gwinn · Structure no. 000000000006479

Built
1940
85 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
70 ft
1 main span
Daily traffic
4,907
2007 count
Owner
State
State Highway Agency

About this bridge

M-35 over E Br Escanaba River is a steel stringer/multi-beam or girder carrying M-35 over E Br Escanaba River in Marquette County, Michigan. It was built in 1940, so it is 85 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 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 4,907 vehicles a day, roughly 3% of them trucks, projected to reach 7,278 by 2018. The structure is 70 ft (21.3 m) long and 48 ft wide. If it were closed, the detour would be 52.2 mi (84 km).

Location

Open in Google Maps
CarriesM-35
CrossesE Br Escanaba River
LocationIn Gwinn
RouteState Highway 35
CountyMarquette County
StateMichigan
Coordinates46.27779, -87.43609
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length70 ft (21.3 m)
Longest span68 ft (20.7 m)
Deck width48 ft (14.6 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,907 (2007)
Projected traffic7,278 by 2018
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed52.2 mi (84 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-35 over E Br Escanaba River built?

It was built in 1940, making it 85 years old in 2025.

What condition is M-35 over E Br Escanaba 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 June 2023.

How much traffic does M-35 over E Br Escanaba River carry?

About 4,907 vehicles per day (2007 count), of which roughly 3% are trucks.

How long is M-35 over E Br Escanaba River?

The structure is 70 ft (21.3 m) long with a longest span of 68 ft (20.7 m) and a deck 48 ft wide.

Who owns M-35 over E Br Escanaba River?

It is owned by the State Highway Agency.