US Bridges

Riverside Drive over Munuscong River

Fair

Chippewa County, Michigan · 20 Mi. S. of Sault Ste Ma · Structure no. 000000000001635

Built
1972
53 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
136 ft
2 main spans
Daily traffic
111
1986 count
Owner
County
County Highway Agency

About this bridge

Riverside Drive over Munuscong River is a steel continuous stringer/multi-beam or girder carrying Riverside Drive over Munuscong River in Chippewa County, Michigan. It was built in 1972, so it is 53 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 111 vehicles a day, projected to reach 195 by 2019. The structure is 136 ft (41.4 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesRiverside Drive
CrossesMunuscong River
Location20 Mi. S. of Sault Ste Ma
RouteCounty Highway 1763
CountyChippewa County
StateMichigan
Coordinates46.18708, -84.32673
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length136 ft (41.4 m)
Longest span67 ft (20.4 m)
Deck width33 ft (10.1 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic111 (1986)
Projected traffic195 by 2019
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Riverside Drive over Munuscong River built?

It was built in 1972, making it 53 years old in 2025.

What condition is Riverside Drive 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 2024.

How much traffic does Riverside Drive over Munuscong River carry?

About 111 vehicles per day (1986 count).

How long is Riverside Drive over Munuscong River?

The structure is 136 ft (41.4 m) long with a longest span of 67 ft (20.4 m) and a deck 33 ft wide.

Who owns Riverside Drive over Munuscong River?

It is owned by the County Highway Agency.