US Bridges

Ivanhoe Road over Colona Drain

Fair

Huron County, Michigan · Sec. 32-33 Colfax Twp. · Structure no. 000000000003587

Built
1973
52 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Prestressed Concrete
Length
48 ft
1 main span
Daily traffic
100
2009 count
Owner
County
County Highway Agency

About this bridge

Ivanhoe Road over Colona Drain is a prestressed concrete tee beam carrying Ivanhoe Road over Colona Drain in Huron County, Michigan. It was built in 1973, so it is 52 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 100 vehicles a day, projected to reach 180 by 2029. The structure is 48 ft (14.6 m) long and 30 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesIvanhoe Road
CrossesColona Drain
LocationSec. 32-33 Colfax Twp.
RouteCounty Highway 0
CountyHuron County
StateMichigan
Coordinates43.77518, -83.07972
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating84 US tons
Inventory rating50.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span45 ft (13.6 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2009)
Projected traffic180 by 2029
Trucks0%
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 Ivanhoe Road over Colona Drain built?

It was built in 1973, making it 52 years old in 2025.

What condition is Ivanhoe Road over Colona Drain 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 September 2023.

How much traffic does Ivanhoe Road over Colona Drain carry?

About 100 vehicles per day (2009 count).

How long is Ivanhoe Road over Colona Drain?

The structure is 48 ft (14.6 m) long with a longest span of 45 ft (13.6 m) and a deck 30 ft wide.

Who owns Ivanhoe Road over Colona Drain?

It is owned by the County Highway Agency.