US Bridges

Greenfield Road over Rotunda Drive

Fair

Wayne County, Michigan · Dearborn N/I-94 · Structure no. 000000000012050

Built
1961
64 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
109 ft
2 main spans
Daily traffic
21,821
1997 count
Owner
County
County Highway Agency

About this bridge

Greenfield Road over Rotunda Drive is a steel continuous stringer/multi-beam or girder carrying Greenfield Road over Rotunda Drive in Wayne County, Michigan. It was built in 1961, so it is 64 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.

It carries about 21,821 vehicles a day, roughly 5% of them trucks, projected to reach 24,000 by 2015. The structure is 109 ft (33.2 m) long and 149 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesGreenfield Road
CrossesRotunda Drive
LocationDearborn N/I-94
RouteCounty Highway 2057
CountyWayne County
StateMichigan
Coordinates42.30562, -83.18687
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length109 ft (33.2 m)
Longest span55 ft (16.7 m)
Deck width149 ft (45.4 m)
Roadway width90 ft (27.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,821 (1997)
Projected traffic24,000 by 2015
Trucks5%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Greenfield Road over Rotunda Drive built?

It was built in 1961, making it 64 years old in 2025.

What condition is Greenfield Road over Rotunda Drive 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 2024.

How much traffic does Greenfield Road over Rotunda Drive carry?

About 21,821 vehicles per day (1997 count), of which roughly 5% are trucks.

How long is Greenfield Road over Rotunda Drive?

The structure is 109 ft (33.2 m) long with a longest span of 55 ft (16.7 m) and a deck 149 ft wide.

Who owns Greenfield Road over Rotunda Drive?

It is owned by the County Highway Agency.