US Bridges

Nine Mile Road over Ravines Branch of Rouge

Fair

Oakland County, Michigan · In Southfield · Structure no. 000000000012736

Built
1930
95 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
7,595
2011 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nine Mile Road over Ravines Branch of Rouge is a concrete culvert carrying Nine Mile Road over Ravines Branch of Rouge in Oakland County, Michigan. It was built in 1930, so it is 95 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 5 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 7,595 vehicles a day, roughly 2% of them trucks, projected to reach 7,822 by 2013. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNine Mile Road
CrossesRavines Branch of Rouge
LocationIn Southfield
RouteCity Street 2059
CountyOakland County
StateMichigan
Coordinates42.45648, -83.31527
Functional classUrban Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length28 ft (8.5 m)
Longest span26 ft (8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,595 (2011)
Projected traffic7,822 by 2013
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$161,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Nine Mile Road over Ravines Branch of Rouge built?

It was built in 1930, making it 95 years old in 2025.

What condition is Nine Mile Road over Ravines Branch of Rouge 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 September 2023.

How much traffic does Nine Mile Road over Ravines Branch of Rouge carry?

About 7,595 vehicles per day (2011 count), of which roughly 2% are trucks.

How long is Nine Mile Road over Ravines Branch of Rouge?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (8 m).

Who owns Nine Mile Road over Ravines Branch of Rouge?

It is owned by the City or Municipal Highway Agency.