US Bridges

6 MI RD over M-39

Fair

Wayne County, Michigan · In Detroit · Structure no. 000000000011708

Built
1962
63 years old, rebuilt 2010
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
109 ft
2 main spans
Daily traffic
20,700
2008 count
Owner
State
State Highway Agency

About this bridge

6 MI RD over M-39 is a steel continuous stringer/multi-beam or girder carrying 6 MI RD over M-39 in Wayne County, Michigan. It was built in 1962 and reconstructed in 2010, so it is 63 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 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 20,700 vehicles a day, roughly 3% of them trucks, projected to reach 27,500 by 2029. The structure is 109 ft (33.1 m) long and 135 ft wide.

Carries6 MI RD
CrossesM-39
LocationIn Detroit
RouteCounty Highway 2057
Coordinates42.41555, -83.21871
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating44.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length109 ft (33.1 m)
Longest span53 ft (16.2 m)
Deck width135 ft (41.1 m)
Roadway width114 ft (34.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,700 (2008)
Projected traffic27,500 by 2029
Trucks3%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 6 MI RD over M-39 built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2010.

What condition is 6 MI RD over M-39 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 August 2023.

How much traffic does 6 MI RD over M-39 carry?

About 20,700 vehicles per day (2008 count), of which roughly 3% are trucks.

How long is 6 MI RD over M-39?

The structure is 109 ft (33.1 m) long with a longest span of 53 ft (16.2 m) and a deck 135 ft wide.

Who owns 6 MI RD over M-39?

It is owned by the State Highway Agency.