US Bridges

Buno Road over Huron River

FairPosted for load

Oakland County, Michigan · Milford Twp Sec 28 · Structure no. 000000000013423

Built
1940
85 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
126 ft
3 main spans
Daily traffic
750
2000 count
Owner
County
County Highway Agency

About this bridge

Buno Road over Huron River is a concrete tee beam carrying Buno Road over Huron River in Oakland County, Michigan. It was built in 1940, so it is 85 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. Its operating status is: posted for load restriction.

It carries about 750 vehicles a day, projected to reach 860 by 2020. The structure is 126 ft (38.4 m) long and 58 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesBuno Road
CrossesHuron River
LocationMilford Twp Sec 28
RouteCounty Highway 0
CountyOakland County
StateMichigan
Coordinates42.54917, -83.63128
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating29.4 US tons
Inventory rating16.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length126 ft (38.4 m)
Longest span50 ft (15.3 m)
Deck width58 ft (17.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2000)
Projected traffic860 by 2020
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Buno Road over Huron River built?

It was built in 1940, making it 85 years old in 2025.

What condition is Buno Road over Huron 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 June 2024.

How much traffic does Buno Road over Huron River carry?

About 750 vehicles per day (2000 count).

How long is Buno Road over Huron River?

The structure is 126 ft (38.4 m) long with a longest span of 50 ft (15.3 m) and a deck 58 ft wide.

Who owns Buno Road over Huron River?

It is owned by the County Highway Agency.