US Bridges

Squirrel RD over Clinton River

Good

Oakland County, Michigan · Bet M59 and Auburn · Structure no. 000000000008217

Built
2001
24 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
20,700
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Squirrel RD over Clinton River is a prestressed concrete box beam or girders - multiple carrying Squirrel RD over Clinton River in Oakland County, Michigan. It was built in 2001, so it is 24 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 20,700 vehicles a day, projected to reach 22,000 by 2044. The structure is 34 ft (10.3 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSquirrel RD
CrossesClinton River
LocationBet M59 and Auburn
RouteCity Street 0
CountyOakland County
StateMichigan
Coordinates42.63681, -83.22001
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.8 US tons
Inventory rating43.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length34 ft (10.3 m)
Longest span32 ft (9.7 m)
Deck width33 ft (10 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,700 (2024)
Projected traffic22,000 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Squirrel RD over Clinton River built?

It was built in 2001, making it 24 years old in 2025.

What condition is Squirrel RD 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 October 2024.

How much traffic does Squirrel RD over Clinton River carry?

About 20,700 vehicles per day (2024 count).

How long is Squirrel RD over Clinton River?

The structure is 34 ft (10.3 m) long with a longest span of 32 ft (9.7 m) and a deck 33 ft wide.

Who owns Squirrel RD over Clinton River?

It is owned by the City or Municipal Highway Agency.