US Bridges

M-35 over Middle Br Escanaba River

Fair

Marquette County, Michigan · 6.2 MI NW of Gwinn · Structure no. 000000000006480

Built
1985
40 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
146 ft
2 main spans
Daily traffic
1,146
2007 count
Owner
State
State Highway Agency

About this bridge

M-35 over Middle Br Escanaba River is a prestressed concrete box beam or girders - multiple carrying M-35 over Middle Br Escanaba River in Marquette County, Michigan. It was built in 1985, so it is 40 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 1,146 vehicles a day, roughly 14% of them trucks, projected to reach 1,256 by 2018. The structure is 146 ft (44.5 m) long and 47 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

Location

Open in Google Maps
CarriesM-35
CrossesMiddle Br Escanaba River
Location6.2 MI NW of Gwinn
RouteState Highway 35
CountyMarquette County
StateMichigan
Coordinates46.31559, -87.53107
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to 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 rating64.6 US tons
Inventory rating38.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length146 ft (44.5 m)
Longest span72 ft (21.8 m)
Deck width47 ft (14.4 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,146 (2007)
Projected traffic1,256 by 2018
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.2 mi (55 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 Middle Br Escanaba River built?

It was built in 1985, making it 40 years old in 2025.

What condition is M-35 over Middle 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 Middle Br Escanaba River carry?

About 1,146 vehicles per day (2007 count), of which roughly 14% are trucks.

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

The structure is 146 ft (44.5 m) long with a longest span of 72 ft (21.8 m) and a deck 47 ft wide.

Who owns M-35 over Middle Br Escanaba River?

It is owned by the State Highway Agency.