US Bridges

Rotunda Drive over Open Area

PoorClosed to traffic

Wayne County, Michigan · Dearborn S / Michigan Ave · Structure no. 000000000012053

Built
1931
94 years old, rebuilt 1983
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
478 ft
19 main spans
Daily traffic
8,816
1992 count
Owner
County
County Highway Agency

About this bridge

Rotunda Drive over Open Area is a steel stringer/multi-beam or girder carrying Rotunda Drive over Open Area in Wayne County, Michigan. It was built in 1931 and reconstructed in 1983, so it is 94 years old, older 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 2 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: closed to all traffic.

It carries about 8,816 vehicles a day, projected to reach 10,138 by 2012. The structure is 478 ft (145.7 m) long and 80 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRotunda Drive
CrossesOpen Area
LocationDearborn S / Michigan Ave
RouteCounty Highway 2057
Coordinates42.31608, -83.16311
Functional classUrban Minor Arterial

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourBridge not over waterway
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans19
Design loadHS 20 + Mod
Structure length478 ft (145.7 m)
Longest span25 ft (7.6 m)
Deck width80 ft (24.3 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,816 (1992)
Projected traffic10,138 by 2012
Trucks0%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 Rotunda Drive over Open Area built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1983.

What condition is Rotunda Drive over Open Area 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 October 2024.

How much traffic does Rotunda Drive over Open Area carry?

About 8,816 vehicles per day (1992 count).

How long is Rotunda Drive over Open Area?

The structure is 478 ft (145.7 m) long with a longest span of 25 ft (7.6 m) and a deck 80 ft wide.

Who owns Rotunda Drive over Open Area?

It is owned by the County Highway Agency.