US Bridges

Antcliff Road over Stoner Creek

FairPosted for load

Livingston County, Michigan · Sec 9 Cohoctah Twp · Structure no. 000000000005835

Built
1922
103 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
21 ft
1 main span
Daily traffic
600
2015 count
Owner
County
County Highway Agency

About this bridge

Antcliff Road over Stoner Creek is a concrete slab carrying Antcliff Road over Stoner Creek in Livingston County, Michigan. It was built in 1922, so it is 103 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 600 vehicles a day, projected to reach 675 by 2035. The structure is 21 ft (6.3 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesAntcliff Road
CrossesStoner Creek
LocationSec 9 Cohoctah Twp
RouteCounty Highway 479
CountyLivingston County
StateMichigan
Coordinates42.75375, -83.99434
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
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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating28.1 US tons
Inventory rating23 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length21 ft (6.3 m)
Longest span18 ft (5.5 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2015)
Projected traffic675 by 2035
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Antcliff Road over Stoner Creek built?

It was built in 1922, making it 103 years old in 2025.

What condition is Antcliff Road over Stoner Creek 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 2024.

How much traffic does Antcliff Road over Stoner Creek carry?

About 600 vehicles per day (2015 count).

How long is Antcliff Road over Stoner Creek?

The structure is 21 ft (6.3 m) long with a longest span of 18 ft (5.5 m) and a deck 22 ft wide.

Who owns Antcliff Road over Stoner Creek?

It is owned by the County Highway Agency.