US Bridges

Brown Road over N B Clinton River

Fair

Macomb County, Michigan · 0.2 MI North of Ebeling · Structure no. 000000000006308

Built
1974
51 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
235
2010 count
Owner
County
County Highway Agency

About this bridge

Brown Road over N B Clinton River is a prestressed concrete box beam or girders - multiple carrying Brown Road over N B Clinton River in Macomb County, Michigan. It was built in 1974, so it is 51 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 235 vehicles a day, roughly 3% of them trucks, projected to reach 349 by 2030. The structure is 52 ft (15.8 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBrown Road
CrossesN B Clinton River
Location0.2 MI North of Ebeling
RouteCounty Highway 0
Coordinates42.85778, -82.99173
Functional classRural 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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.2 US tons
Inventory rating37.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span50 ft (15.2 m)
Deck width34 ft (10.3 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic235 (2010)
Projected traffic349 by 2030
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
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 Brown Road over N B Clinton River built?

It was built in 1974, making it 51 years old in 2025.

What condition is Brown Road over N B Clinton 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 July 2024.

How much traffic does Brown Road over N B Clinton River carry?

About 235 vehicles per day (2010 count), of which roughly 3% are trucks.

How long is Brown Road over N B Clinton River?

The structure is 52 ft (15.8 m) long with a longest span of 50 ft (15.2 m) and a deck 34 ft wide.

Who owns Brown Road over N B Clinton River?

It is owned by the County Highway Agency.