US Bridges

U-Trn Serv RD over M-39(SOUTHFIELD Expr)

Fair

Wayne County, Michigan · In Detroit · Structure no. 000000000011550

Built
1970
55 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
242 ft
4 main spans
Daily traffic
5,500
1988 count
Owner
State
State Highway Agency

About this bridge

U-Trn Serv RD over M-39(SOUTHFIELD Expr) is a steel stringer/multi-beam or girder carrying U-Trn Serv RD over M-39(SOUTHFIELD Expr) in Wayne County, Michigan. It was built in 1970, so it is 55 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 5,500 vehicles a day, projected to reach 5,000 by 1977. The structure is 242 ft (73.7 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesU-Trn Serv RD
CrossesM-39(SOUTHFIELD Expr)
LocationIn Detroit
CountyWayne County
StateMichigan
Coordinates42.37823, -83.21656
Functional classUrban Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
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 rating66 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length242 ft (73.7 m)
Longest span81 ft (24.7 m)
Deck width34 ft (10.4 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deck14 ft (4.4 m)

Traffic and service

Average daily traffic5,500 (1988)
Projected traffic5,000 by 1977
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was U-Trn Serv RD over M-39(SOUTHFIELD Expr) built?

It was built in 1970, making it 55 years old in 2025.

What condition is U-Trn Serv RD over M-39(SOUTHFIELD Expr) 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 U-Trn Serv RD over M-39(SOUTHFIELD Expr) carry?

About 5,500 vehicles per day (1988 count).

How long is U-Trn Serv RD over M-39(SOUTHFIELD Expr)?

The structure is 242 ft (73.7 m) long with a longest span of 81 ft (24.7 m) and a deck 34 ft wide.

Who owns U-Trn Serv RD over M-39(SOUTHFIELD Expr)?

It is owned by the State Highway Agency.