US Bridges

Warren Ave over I-75

Fair

Wayne County, Michigan · In Detroit · Structure no. 000000000011817

Built
1962
63 years old, rebuilt 2007
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
205 ft
4 main spans
Daily traffic
26,900
2008 count
Owner
State
State Highway Agency

About this bridge

Warren Ave over I-75 is a steel stringer/multi-beam or girder carrying Warren Ave over I-75 in Wayne County, Michigan. It was built in 1962 and reconstructed in 2007, so it is 63 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 26,900 vehicles a day, roughly 3% of them trucks, projected to reach 34,700 by 2028. The structure is 205 ft (62.5 m) long and 173 ft wide.

Location

Open in Google Maps
CarriesWarren Ave
CrossesI-75
LocationIn Detroit
RouteCity Street 2000
CountyWayne County
StateMichigan
Coordinates42.36084, -83.05424
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.3 US tons
Inventory rating47.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length205 ft (62.5 m)
Longest span75 ft (22.8 m)
Deck width173 ft (52.8 m)
Roadway width137 ft (41.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,900 (2008)
Projected traffic34,700 by 2028
Trucks3%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 Ave over I-75 built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2007.

What condition is Warren Ave over I-75 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 July 2023.

How much traffic does Warren Ave over I-75 carry?

About 26,900 vehicles per day (2008 count), of which roughly 3% are trucks.

How long is Warren Ave over I-75?

The structure is 205 ft (62.5 m) long with a longest span of 75 ft (22.8 m) and a deck 173 ft wide.

Who owns Warren Ave over I-75?

It is owned by the State Highway Agency.