US Bridges

Northlawn Blvd over Rouge River

Fair

Oakland County, Michigan · 0.3 MI W of Southfield RD · Structure no. 000000000008232

Built
1961
64 years old, rebuilt 2008
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
56 ft
1 main span
Daily traffic
775
2004 count
Owner
City
City or Municipal Highway Agency

About this bridge

Northlawn Blvd over Rouge River is a steel stringer/multi-beam or girder carrying Northlawn Blvd over Rouge River in Oakland County, Michigan. It was built in 1961 and reconstructed in 2008, 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 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 775 vehicles a day, roughly 5% of them trucks, projected to reach 930 by 2024. The structure is 56 ft (17 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNorthlawn Blvd
CrossesRouge River
Location0.3 MI W of Southfield RD
RouteCity Street 0
Coordinates42.53569, -83.23015
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating101.7 US tons
Inventory rating60.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length56 ft (17 m)
Longest span53 ft (16.1 m)
Deck width38 ft (11.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic775 (2004)
Projected traffic930 by 2024
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Northlawn Blvd over Rouge River built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2008.

What condition is Northlawn Blvd over Rouge River 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 Northlawn Blvd over Rouge River carry?

About 775 vehicles per day (2004 count), of which roughly 5% are trucks.

How long is Northlawn Blvd over Rouge River?

The structure is 56 ft (17 m) long with a longest span of 53 ft (16.1 m) and a deck 38 ft wide.

Who owns Northlawn Blvd over Rouge River?

It is owned by the City or Municipal Highway Agency.