US Bridges

Zenobia 186 over Zenobia / CO Di 104

Good

Huron County, Ohio · 0.2 MI W of Laylin Road · Structure no. 3937232

Built
1995
30 years old, rebuilt 2024
Condition
Good
inspected July 2024
Type
Slab
Concrete
Length
33 ft
1 main span
Daily traffic
800
2020 count
Owner
County
County Highway Agency

About this bridge

Zenobia 186 over Zenobia / CO Di 104 is a concrete slab carrying Zenobia 186 over Zenobia / CO Di 104 in Huron County, Ohio. It was built in 1995 and reconstructed in 2024, so it is 30 years old, younger than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 800 vehicles a day, roughly 5% of them trucks, projected to reach 194 by 2035. The structure is 33 ft (10.1 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesZenobia 186
CrossesZenobia / CO Di 104
Location0.2 MI W of Laylin Road
RouteCounty Highway C0186
StateOhio
Coordinates41.2072, -82.56778
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating107.1 US tons
Inventory rating82.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length33 ft (10.1 m)
Longest span31 ft (9.4 m)
Deck width30 ft (9.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2020)
Projected traffic194 by 2035
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Zenobia 186 over Zenobia / CO Di 104 built?

It was built in 1995, making it 30 years old in 2025. It was reconstructed in 2024.

What condition is Zenobia 186 over Zenobia / CO Di 104 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Zenobia 186 over Zenobia / CO Di 104 carry?

About 800 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Zenobia 186 over Zenobia / CO Di 104?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 30 ft wide.

Who owns Zenobia 186 over Zenobia / CO Di 104?

It is owned by the County Highway Agency.