US Bridges

Kilgore Road over Pine River

Fair

St. Clair County, Michigan · Sec. 21-22 Kenockee Twp. · Structure no. 000000000010091

Built
1989
36 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete
Length
45 ft
1 main span
Daily traffic
1,365
1994 count
Owner
County
County Highway Agency

About this bridge

Kilgore Road over Pine River is a concrete tee beam carrying Kilgore Road over Pine River in St. Clair County, Michigan. It was built in 1989, so it is 36 years old, younger 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 1,365 vehicles a day, roughly 7% of them trucks, projected to reach 1,500 by 2014. The structure is 45 ft (13.7 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesKilgore Road
CrossesPine River
LocationSec. 21-22 Kenockee Twp.
RouteCounty Highway 7747
CountySt. Clair County
StateMichigan
Coordinates43.02195, -82.69282
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum 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 rating56.8 US tons
Inventory rating34.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length45 ft (13.7 m)
Longest span43 ft (13.1 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,365 (1994)
Projected traffic1,500 by 2014
Trucks7%
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 Kilgore Road over Pine River built?

It was built in 1989, making it 36 years old in 2025.

What condition is Kilgore Road over Pine 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 March 2023.

How much traffic does Kilgore Road over Pine River carry?

About 1,365 vehicles per day (1994 count), of which roughly 7% are trucks.

How long is Kilgore Road over Pine River?

The structure is 45 ft (13.7 m) long with a longest span of 43 ft (13.1 m) and a deck 32 ft wide.

Who owns Kilgore Road over Pine River?

It is owned by the County Highway Agency.