US Bridges

Gogomain Road over Munuscong River

FairPosted for load

Chippewa County, Michigan · 22 MI S of Sault Ste Mari · Structure no. 000000000001638

Built
1991
34 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
985
2020 count
Owner
County
County Highway Agency

About this bridge

Gogomain Road over Munuscong River is a prestressed concrete box beam or girders - multiple carrying Gogomain Road over Munuscong River in Chippewa County, Michigan. It was built in 1991, so it is 34 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. Its operating status is: posted for load restriction.

It carries about 985 vehicles a day, roughly 4% of them trucks, projected to reach 1,202 by 2041. The structure is 120 ft (36.7 m) long and 40 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesGogomain Road
CrossesMunuscong River
Location22 MI S of Sault Ste Mari
RouteCounty Highway 1763
CountyChippewa County
StateMichigan
Coordinates46.15798, -84.35962
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating34 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length120 ft (36.7 m)
Longest span60 ft (18.2 m)
Deck width40 ft (12.3 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic985 (2020)
Projected traffic1,202 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Gogomain Road over Munuscong River built?

It was built in 1991, making it 34 years old in 2025.

What condition is Gogomain Road over Munuscong 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 Gogomain Road over Munuscong River carry?

About 985 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Gogomain Road over Munuscong River?

The structure is 120 ft (36.7 m) long with a longest span of 60 ft (18.2 m) and a deck 40 ft wide.

Who owns Gogomain Road over Munuscong River?

It is owned by the County Highway Agency.