US Bridges

26 Mile Road over Salt River

Good

Macomb County, Michigan · 0.5MI East of Gratiot Ave · Structure no. 000000000006219

Built
1996
29 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
68 ft
1 main span
Daily traffic
8,910
2008 count
Owner
County
County Highway Agency

About this bridge

26 Mile Road over Salt River is a prestressed concrete box beam or girders - multiple carrying 26 Mile Road over Salt River in Macomb County, Michigan. It was built in 1996, so it is 29 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 8,910 vehicles a day, roughly 5% of them trucks, projected to reach 14,600 by 2028. The structure is 68 ft (20.7 m) long and 47 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries26 Mile Road
CrossesSalt River
Location0.5MI East of Gratiot Ave
RouteCounty Highway 5060
Coordinates42.71956, -82.78561
Functional classUrban Minor Arterial

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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.2 US tons
Inventory rating30 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length68 ft (20.7 m)
Longest span66 ft (20.1 m)
Deck width47 ft (14.4 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,910 (2008)
Projected traffic14,600 by 2028
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 26 Mile Road over Salt River built?

It was built in 1996, making it 29 years old in 2025.

What condition is 26 Mile Road over Salt 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 April 2023.

How much traffic does 26 Mile Road over Salt River carry?

About 8,910 vehicles per day (2008 count), of which roughly 5% are trucks.

How long is 26 Mile Road over Salt River?

The structure is 68 ft (20.7 m) long with a longest span of 66 ft (20.1 m) and a deck 47 ft wide.

Who owns 26 Mile Road over Salt River?

It is owned by the County Highway Agency.