US Bridges

Zenobia 186 over Zenobia / Vermilion Rvr

Good

Huron County, Ohio · 0.3 MI W of SR18 · Structure no. 3939669

Built
2007
18 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
108 ft
1 main span
Daily traffic
210
2015 count
Owner
County
County Highway Agency

About this bridge

Zenobia 186 over Zenobia / Vermilion Rvr is a prestressed concrete box beam or girders - multiple carrying Zenobia 186 over Zenobia / Vermilion Rvr in Huron County, Ohio. It was built in 2007, so it is 18 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 210 vehicles a day, roughly 8% of them trucks, projected to reach 291 by 2035. The structure is 108 ft (32.9 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesZenobia 186
CrossesZenobia / Vermilion Rvr
Location0.3 MI W of SR18
RouteCounty Highway C0186
StateOhio
Coordinates41.19551, -82.41499
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.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating58.5 US tons
Inventory rating35.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length108 ft (32.9 m)
Longest span105 ft (32 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2015)
Projected traffic291 by 2035
Trucks8%
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 / Vermilion Rvr built?

It was built in 2007, making it 18 years old in 2025.

What condition is Zenobia 186 over Zenobia / Vermilion Rvr 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 November 2024.

How much traffic does Zenobia 186 over Zenobia / Vermilion Rvr carry?

About 210 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Zenobia 186 over Zenobia / Vermilion Rvr?

The structure is 108 ft (32.9 m) long with a longest span of 105 ft (32 m) and a deck 28 ft wide.

Who owns Zenobia 186 over Zenobia / Vermilion Rvr?

It is owned by the County Highway Agency.