US Bridges

Harbor Ave over Canal

PoorPosted for load

Wayne County, Michigan · Harbor Island · Structure no. 000000000012470

Built
1984
41 years old
Condition
Poor
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
40 ft
2 main spans
Daily traffic
313
2008 count
Owner
City
City or Municipal Highway Agency

About this bridge

Harbor Ave over Canal is a prestressed concrete box beam or girders - multiple carrying Harbor Ave over Canal in Wayne County, Michigan. It was built in 1984, so it is 41 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 313 vehicles a day, projected to reach 612 by 2023. The structure is 40 ft (12.2 m) long and 38 ft wide.

Location

Open in Google Maps
CarriesHarbor Ave
CrossesCanal
LocationHarbor Island
RouteCity Street 0
CountyWayne County
StateMichigan
Coordinates42.35955, -82.93663
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating97.9 US tons
Inventory rating58.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span20 ft (6.1 m)
Deck width38 ft (11.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic313 (2008)
Projected traffic612 by 2023
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Harbor Ave over Canal built?

It was built in 1984, making it 41 years old in 2025.

What condition is Harbor Ave over Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

How much traffic does Harbor Ave over Canal carry?

About 313 vehicles per day (2008 count).

How long is Harbor Ave over Canal?

The structure is 40 ft (12.2 m) long with a longest span of 20 ft (6.1 m) and a deck 38 ft wide.

Who owns Harbor Ave over Canal?

It is owned by the City or Municipal Highway Agency.