US Bridges

Hough Road over Graham Drain

Fair

St. Clair County, Michigan · Sec 26-35 Berlin Twp · Structure no. 000000000010057

Built
1973
52 years old, rebuilt 2017
Condition
Fair
inspected August 2023
Type
Slab
Prestressed Concrete
Length
23 ft
1 main span
Daily traffic
1,880
2015 count
Owner
County
County Highway Agency

About this bridge

Hough Road over Graham Drain is a prestressed concrete slab carrying Hough Road over Graham Drain in St. Clair County, Michigan. It was built in 1973 and reconstructed in 2017, so it is 52 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 1,880 vehicles a day, roughly 16% of them trucks, projected to reach 2,790 by 2035. The structure is 23 ft (6.9 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesHough Road
CrossesGraham Drain
LocationSec 26-35 Berlin Twp
RouteCounty Highway 7758
CountySt. Clair County
StateMichigan
Coordinates42.90981, -82.89529
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length23 ft (6.9 m)
Longest span20 ft (6.2 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,880 (2015)
Projected traffic2,790 by 2035
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Hough Road over Graham Drain built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2017.

What condition is Hough Road over Graham 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 August 2023.

How much traffic does Hough Road over Graham Drain carry?

About 1,880 vehicles per day (2015 count), of which roughly 16% are trucks.

How long is Hough Road over Graham Drain?

The structure is 23 ft (6.9 m) long with a longest span of 20 ft (6.2 m) and a deck 33 ft wide.

Who owns Hough Road over Graham Drain?

It is owned by the County Highway Agency.