US Bridges

Jennings Road over Pine Run

Fair

Genesee County, Michigan · 1700 Ft North of Vienna · Structure no. 000000000002819

Built
1937
88 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete
Length
32 ft
1 main span
Daily traffic
4,394
2009 count
Owner
County
County Highway Agency

About this bridge

Jennings Road over Pine Run is a concrete tee beam carrying Jennings Road over Pine Run in Genesee County, Michigan. It was built in 1937, so it is 88 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 4,394 vehicles a day, roughly 5% of them trucks, projected to reach 7,936 by 2029. The structure is 32 ft (9.7 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesJennings Road
CrossesPine Run
Location1700 Ft North of Vienna
RouteCounty Highway 0
CountyGenesee County
StateMichigan
Coordinates43.18236, -83.75427
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
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating39.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length32 ft (9.7 m)
Longest span31 ft (9.4 m)
Deck width37 ft (11.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,394 (2009)
Projected traffic7,936 by 2029
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Jennings Road over Pine Run built?

It was built in 1937, making it 88 years old in 2025.

What condition is Jennings Road over Pine Run 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 November 2024.

How much traffic does Jennings Road over Pine Run carry?

About 4,394 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is Jennings Road over Pine Run?

The structure is 32 ft (9.7 m) long with a longest span of 31 ft (9.4 m) and a deck 37 ft wide.

Who owns Jennings Road over Pine Run?

It is owned by the County Highway Agency.