US Bridges

M-48 over E Br Munuscong River

Fair

Chippewa County, Michigan · 2.4 MI NW of Stalwart · Structure no. 000000000001594

Built
1930
95 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
755
2007 count
Owner
State
State Highway Agency

About this bridge

M-48 over E Br Munuscong River is a concrete continuous culvert carrying M-48 over E Br Munuscong River in Chippewa 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 755 vehicles a day, roughly 8% of them trucks, projected to reach 955 by 2018. The structure is 21 ft (6.5 m) long. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesM-48
CrossesE Br Munuscong River
Location2.4 MI NW of Stalwart
RouteState Highway 48
CountyChippewa County
StateMichigan
Coordinates46.1149, -84.25965
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length21 ft (6.5 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic755 (2007)
Projected traffic955 by 2018
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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-48 over E Br Munuscong River built?

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

What condition is M-48 over E Br 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 October 2023.

How much traffic does M-48 over E Br Munuscong River carry?

About 755 vehicles per day (2007 count), of which roughly 8% are trucks.

How long is M-48 over E Br Munuscong River?

The structure is 21 ft (6.5 m) long with a longest span of 10 ft (3 m).

Who owns M-48 over E Br Munuscong River?

It is owned by the State Highway Agency.