US Bridges

Davison S Serv RD over I-75 Ramp C

Good

Wayne County, Michigan · In Detroit over Ramp C · Structure no. 000000000011866

Built
1969
56 years old, rebuilt 2003
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
99 ft
1 main span
Daily traffic
810
2021 count
Owner
State
State Highway Agency

About this bridge

Davison S Serv RD over I-75 Ramp C is a steel stringer/multi-beam or girder carrying Davison S Serv RD over I-75 Ramp C in Wayne County, Michigan. It was built in 1969 and reconstructed in 2003, so it is 56 years old, older 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 810 vehicles a day, roughly 3% of them trucks, projected to reach 865 by 2042. The structure is 99 ft (30.1 m) long and 42 ft wide.

CarriesDavison S Serv RD
CrossesI-75 Ramp C
LocationIn Detroit over Ramp C
RouteState Highway 14
Coordinates42.40885, -83.07653
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.1 US tons
Inventory rating49.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length99 ft (30.1 m)
Longest span99 ft (30.1 m)
Deck width42 ft (12.7 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic810 (2021)
Projected traffic865 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Davison S Serv RD over I-75 Ramp C built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2003.

What condition is Davison S Serv RD over I-75 Ramp C 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 Davison S Serv RD over I-75 Ramp C carry?

About 810 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Davison S Serv RD over I-75 Ramp C?

The structure is 99 ft (30.1 m) long with a longest span of 99 ft (30.1 m) and a deck 42 ft wide.

Who owns Davison S Serv RD over I-75 Ramp C?

It is owned by the State Highway Agency.