US Bridges

Rutledge Road over Munuscong River

Good

Mackinac County, Michigan · 1.5 M S 2 M W of Pickford · Structure no. 000000000005993

Built
2006
19 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
111 ft
3 main spans
Daily traffic
60
2015 count
Owner
County
County Highway Agency

About this bridge

Rutledge Road over Munuscong River is a prestressed concrete box beam or girders - multiple carrying Rutledge Road over Munuscong River in Mackinac County, Michigan. It was built in 2006, so it is 19 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 60 vehicles a day, roughly 5% of them trucks, projected to reach 60 by 2035. The structure is 111 ft (33.8 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesRutledge Road
CrossesMunuscong River
Location1.5 M S 2 M W of Pickford
RouteCounty Highway 0
Coordinates46.13623, -84.40495
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating39.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length111 ft (33.8 m)
Longest span36 ft (10.9 m)
Deck width31 ft (9.5 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2015)
Projected traffic60 by 2035
Trucks5%
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 statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rutledge Road over Munuscong River built?

It was built in 2006, making it 19 years old in 2025.

What condition is Rutledge Road over 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 October 2023.

How much traffic does Rutledge Road over Munuscong River carry?

About 60 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Rutledge Road over Munuscong River?

The structure is 111 ft (33.8 m) long with a longest span of 36 ft (10.9 m) and a deck 31 ft wide.

Who owns Rutledge Road over Munuscong River?

It is owned by the County Highway Agency.