US Bridges

Colony Road over So Fork Hayworth Creek

FairPosted for load

Clinton County, Michigan · 1/4 MI W of Anderson RD · Structure no. 000000000001907

Built
1965
60 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
1,593
2017 count
Owner
County
County Highway Agency

About this bridge

Colony Road over So Fork Hayworth Creek is a prestressed concrete box beam or girders - multiple carrying Colony Road over So Fork Hayworth Creek in Clinton County, Michigan. It was built in 1965, so it is 60 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. Its operating status is: posted for load restriction.

It carries about 1,593 vehicles a day, roughly 2% of them trucks, projected to reach 1,800 by 2037. The structure is 51 ft (15.5 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesColony Road
CrossesSo Fork Hayworth Creek
Location1/4 MI W of Anderson RD
RouteCounty Highway 0
CountyClinton County
StateMichigan
Coordinates43.04631, -84.65494
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating35.7 US tons
Inventory rating23.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span50 ft (15.2 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,593 (2017)
Projected traffic1,800 by 2037
Trucks2%
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 Colony Road over So Fork Hayworth Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Colony Road over So Fork Hayworth 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 October 2024.

How much traffic does Colony Road over So Fork Hayworth Creek carry?

About 1,593 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Colony Road over So Fork Hayworth Creek?

The structure is 51 ft (15.5 m) long with a longest span of 50 ft (15.2 m) and a deck 31 ft wide.

Who owns Colony Road over So Fork Hayworth Creek?

It is owned by the County Highway Agency.