US Bridges

Perry Road over Thread River

Good

Genesee County, Michigan · Inters of Perry & Vassar · Structure no. 000000000002710

Built
2011
14 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
7,228
2005 count
Owner
County
County Highway Agency

About this bridge

Perry Road over Thread River is a prestressed concrete box beam or girders - multiple carrying Perry Road over Thread River in Genesee County, Michigan. It was built in 2011, so it is 14 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,228 vehicles a day, roughly 5% of them trucks, projected to reach 13,055 by 2026. The structure is 65 ft (19.8 m) long and 44 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesPerry Road
CrossesThread River
LocationInters of Perry & Vassar
RouteCounty Highway 2534
CountyGenesee County
StateMichigan
Coordinates42.93269, -83.57376
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.1 US tons
Inventory rating70.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length65 ft (19.8 m)
Longest span64 ft (19.4 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,228 (2005)
Projected traffic13,055 by 2026
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Perry Road over Thread River built?

It was built in 2011, making it 14 years old in 2025.

What condition is Perry Road over Thread River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does Perry Road over Thread River carry?

About 7,228 vehicles per day (2005 count), of which roughly 5% are trucks.

How long is Perry Road over Thread River?

The structure is 65 ft (19.8 m) long with a longest span of 64 ft (19.4 m) and a deck 44 ft wide.

Who owns Perry Road over Thread River?

It is owned by the County Highway Agency.