US Bridges

Hanover RD over Ecorse Creek

Fair

Wayne County, Michigan · Dbn Hgts Harding-Merrick · Structure no. 000000000012330

Built
1977
48 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
2,500
1982 count
Owner
City
City or Municipal Highway Agency

About this bridge

Hanover RD over Ecorse Creek is a prestressed concrete box beam or girders - multiple carrying Hanover RD over Ecorse Creek in Wayne County, Michigan. It was built in 1977, so it is 48 years old, younger 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 2,500 vehicles a day, roughly 5% of them trucks, projected to reach 2,500 by 2002. The structure is 37 ft (11.2 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesHanover RD
CrossesEcorse Creek
LocationDbn Hgts Harding-Merrick
RouteCity Street 0
CountyWayne County
StateMichigan
Coordinates42.27149, -83.24145
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating107.1 US tons
Inventory rating66 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length37 ft (11.2 m)
Longest span35 ft (10.6 m)
Deck width43 ft (13.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (1982)
Projected traffic2,500 by 2002
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
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$22,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Hanover RD over Ecorse Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Hanover RD over Ecorse Creek 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 October 2023.

How much traffic does Hanover RD over Ecorse Creek carry?

About 2,500 vehicles per day (1982 count), of which roughly 5% are trucks.

How long is Hanover RD over Ecorse Creek?

The structure is 37 ft (11.2 m) long with a longest span of 35 ft (10.6 m) and a deck 43 ft wide.

Who owns Hanover RD over Ecorse Creek?

It is owned by the City or Municipal Highway Agency.