US Bridges

Warren Rmp to I-75 over I-75 NB to E&w Turn Rdwy

Good

Wayne County, Michigan · In Detroit · Structure no. 000000000011818

Built
1964
61 years old, rebuilt 2007
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
105 ft
1 main span
Daily traffic
6,180
1978 count
Owner
State
State Highway Agency

About this bridge

Warren Rmp to I-75 over I-75 NB to E&w Turn Rdwy is a steel stringer/multi-beam or girder carrying Warren Rmp to I-75 over I-75 NB to E&w Turn Rdwy in Wayne County, Michigan. It was built in 1964 and reconstructed in 2007, so it is 61 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 6,180 vehicles a day, roughly 3% of them trucks, projected to reach 10,750 by 2028. The structure is 105 ft (32 m) long and 30 ft wide.

CarriesWarren Rmp to I-75
CrossesI-75 NB to E&w Turn Rdwy
LocationIn Detroit
RouteInterstate 75
Coordinates42.36258, -83.05473
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.9 US tons
Inventory rating43.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length105 ft (32 m)
Longest span96 ft (29.3 m)
Deck width30 ft (9 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,180 (1978)
Projected traffic10,750 by 2028
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Warren Rmp to I-75 over I-75 NB to E&w Turn Rdwy built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2007.

What condition is Warren Rmp to I-75 over I-75 NB to E&w Turn Rdwy 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 March 2024.

How much traffic does Warren Rmp to I-75 over I-75 NB to E&w Turn Rdwy carry?

About 6,180 vehicles per day (1978 count), of which roughly 3% are trucks.

How long is Warren Rmp to I-75 over I-75 NB to E&w Turn Rdwy?

The structure is 105 ft (32 m) long with a longest span of 96 ft (29.3 m) and a deck 30 ft wide.

Who owns Warren Rmp to I-75 over I-75 NB to E&w Turn Rdwy?

It is owned by the State Highway Agency.