US Bridges

Mwfroad over Escanaba River Overflow

Fair

Marquette County, Michigan · 6 MI S of Palmer · Structure no. 000000000006607

Built
1930
95 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
10
2001 count
Owner
County
County Highway Agency

About this bridge

Mwfroad over Escanaba River Overflow is a steel stringer/multi-beam or girder carrying Mwfroad over Escanaba River Overflow in Marquette County, Michigan. It was built in 1930, so it is 95 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 10 vehicles a day, projected to reach 10 by 2020. The structure is 40 ft (12.2 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesMwfroad
CrossesEscanaba River Overflow
Location6 MI S of Palmer
RouteCounty Highway 0
CountyMarquette County
StateMichigan
Coordinates46.35207, -87.60035
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating29.3 US tons
Inventory rating22.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length40 ft (12.2 m)
Longest span39 ft (11.8 m)
Deck width16 ft (4.8 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2001)
Projected traffic10 by 2020
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$68,000 (2050 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mwfroad over Escanaba River Overflow built?

It was built in 1930, making it 95 years old in 2025.

What condition is Mwfroad over Escanaba River Overflow 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 November 2024.

How much traffic does Mwfroad over Escanaba River Overflow carry?

About 10 vehicles per day (2001 count).

How long is Mwfroad over Escanaba River Overflow?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.8 m) and a deck 16 ft wide.

Who owns Mwfroad over Escanaba River Overflow?

It is owned by the County Highway Agency.