US Bridges

University Dr(conn over Clinton R

Fair

Oakland County, Michigan · In Pontiac (undr M-59 Wb) · Structure no. 000000000007830

Built
1966
59 years old, rebuilt 1998
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
221 ft
3 main spans
Daily traffic
20,000
1995 count
Owner
State
State Highway Agency

About this bridge

University Dr(conn over Clinton R is a steel stringer/multi-beam or girder carrying University Dr(conn over Clinton R in Oakland County, Michigan. It was built in 1966 and reconstructed in 1998, so it is 59 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 20,000 vehicles a day, roughly 6% of them trucks, projected to reach 28,587 by 2015. The structure is 221 ft (67.5 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUniversity Dr(conn
CrossesClinton R
LocationIn Pontiac (undr M-59 Wb)
RouteState Highway 59
CountyOakland County
StateMichigan
Coordinates42.64309, -83.2805
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to 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
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length221 ft (67.5 m)
Longest span79 ft (24.2 m)
Deck width35 ft (10.7 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deck14 ft (4.4 m)

Traffic and service

Average daily traffic20,000 (1995)
Projected traffic28,587 by 2015
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was University Dr(conn over Clinton R built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1998.

What condition is University Dr(conn over Clinton R in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does University Dr(conn over Clinton R carry?

About 20,000 vehicles per day (1995 count), of which roughly 6% are trucks.

How long is University Dr(conn over Clinton R?

The structure is 221 ft (67.5 m) long with a longest span of 79 ft (24.2 m) and a deck 35 ft wide.

Who owns University Dr(conn over Clinton R?

It is owned by the State Highway Agency.