US Bridges

Webb Ave over M-10

Fair

Wayne County, Michigan · In Detroit · Structure no. 000000000011435

Built
1955
70 years old, rebuilt 1991
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
166 ft
4 main spans
Daily traffic
9,260
1990 count
Owner
State
State Highway Agency

About this bridge

Webb Ave over M-10 is a steel continuous stringer/multi-beam or girder carrying Webb Ave over M-10 in Wayne County, Michigan. It was built in 1955 and reconstructed in 1991, so it is 70 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: open, would be posted or closed except for temporary shoring.

It carries about 9,260 vehicles a day, projected to reach 12,470 by 2015. The structure is 166 ft (50.6 m) long and 76 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesWebb Ave
CrossesM-10
LocationIn Detroit
RouteCity Street 2000
CountyWayne County
StateMichigan
Coordinates42.38784, -83.10211
Functional classUrban Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length166 ft (50.6 m)
Longest span55 ft (16.7 m)
Deck width76 ft (23.2 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,260 (1990)
Projected traffic12,470 by 2015
Trucks—
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
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 Webb Ave over M-10 built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1991.

What condition is Webb Ave over M-10 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 April 2023.

How much traffic does Webb Ave over M-10 carry?

About 9,260 vehicles per day (1990 count).

How long is Webb Ave over M-10?

The structure is 166 ft (50.6 m) long with a longest span of 55 ft (16.7 m) and a deck 76 ft wide.

Who owns Webb Ave over M-10?

It is owned by the State Highway Agency.