US Bridges

23 Mile Road over East Br Munuscong River

Good

Chippewa County, Michigan · 2 MI NE of Pickford · Structure no. 000000000001659

Built
2002
23 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
66 ft
2 main spans
Daily traffic
10
1991 count
Owner
County
County Highway Agency

About this bridge

23 Mile Road over East Br Munuscong River is a steel stringer/multi-beam or girder carrying 23 Mile Road over East Br Munuscong River in Chippewa County, Michigan. It was built in 2002, so it is 23 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10 vehicles a day, projected to reach 15 by 2019. The structure is 66 ft (20 m) long and 20 ft wide. If it were closed, the detour would be 124.3 mi (200 km).

Location

Open in Google Maps
Carries23 Mile Road
CrossesEast Br Munuscong River
Location2 MI NE of Pickford
RouteCounty Highway 0
CountyChippewa County
StateMichigan
Coordinates46.1724, -84.34436
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating93.3 US tons
Inventory rating55.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckOpen grating
Main spans2
Design loadHS 20
Structure length66 ft (20 m)
Longest span32 ft (9.8 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (1991)
Projected traffic15 by 2019
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed124.3 mi (200 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 23 Mile Road over East Br Munuscong River built?

It was built in 2002, making it 23 years old in 2025.

What condition is 23 Mile Road over East Br Munuscong River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does 23 Mile Road over East Br Munuscong River carry?

About 10 vehicles per day (1991 count).

How long is 23 Mile Road over East Br Munuscong River?

The structure is 66 ft (20 m) long with a longest span of 32 ft (9.8 m) and a deck 20 ft wide.

Who owns 23 Mile Road over East Br Munuscong River?

It is owned by the County Highway Agency.