US Bridges

Avon Road over Clinton River

Good

Oakland County, Michigan · Bet John R and Dequindre · Structure no. 000000000008182

Built
2022
3 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
18,054
2014 count
Owner
County
County Highway Agency

About this bridge

Avon Road over Clinton River is a prestressed concrete stringer/multi-beam or girder carrying Avon Road over Clinton River in Oakland County, Michigan. It was built in 2022, so it is 3 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 18,054 vehicles a day, roughly 3% of them trucks, projected to reach 25,000 by 2038. The structure is 71 ft (21.6 m) long and 92 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesAvon Road
CrossesClinton River
LocationBet John R and Dequindre
RouteCounty Highway 2059
Coordinates42.67193, -83.09662
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.3 US tons
Inventory rating55.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length71 ft (21.6 m)
Longest span68 ft (20.7 m)
Deck width92 ft (28.1 m)
Roadway width57 ft (17.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,054 (2014)
Projected traffic25,000 by 2038
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$292,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Avon Road over Clinton River built?

It was built in 2022, making it 3 years old in 2025.

What condition is Avon Road over Clinton 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 2024.

How much traffic does Avon Road over Clinton River carry?

About 18,054 vehicles per day (2014 count), of which roughly 3% are trucks.

How long is Avon Road over Clinton River?

The structure is 71 ft (21.6 m) long with a longest span of 68 ft (20.7 m) and a deck 92 ft wide.

Who owns Avon Road over Clinton River?

It is owned by the County Highway Agency.