US Bridges

Seven Mile Road over N/Branch Johnson Drain

Fair

Wayne County, Michigan · Northville T E/Beck · Structure no. 000000000012093

Built
1934
91 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
6,799
1995 count
Owner
County
County Highway Agency

About this bridge

Seven Mile Road over N/Branch Johnson Drain is a concrete culvert carrying Seven Mile Road over N/Branch Johnson Drain in Wayne County, Michigan. It was built in 1934, so it is 91 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 6,799 vehicles a day, roughly 5% of them trucks, projected to reach 6,092 by 2015. The structure is 21 ft (6.4 m) long.

Location

Open in Google Maps
CarriesSeven Mile Road
CrossesN/Branch Johnson Drain
LocationNorthville T E/Beck
RouteCounty Highway 2057
CountyWayne County
StateMichigan
Coordinates42.42338, -83.50412
Functional classUrban Minor 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating49.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span18 ft (5.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,799 (1995)
Projected traffic6,092 by 2015
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Seven Mile Road over N/Branch Johnson Drain built?

It was built in 1934, making it 91 years old in 2025.

What condition is Seven Mile Road over N/Branch Johnson Drain 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 May 2023.

How much traffic does Seven Mile Road over N/Branch Johnson Drain carry?

About 6,799 vehicles per day (1995 count), of which roughly 5% are trucks.

How long is Seven Mile Road over N/Branch Johnson Drain?

The structure is 21 ft (6.4 m) long with a longest span of 18 ft (5.4 m).

Who owns Seven Mile Road over N/Branch Johnson Drain?

It is owned by the County Highway Agency.