US Bridges

SR 18 over Trib of Vermilion River

Fair

Huron County, Ohio · .2 Miles West of SR60 · Structure no. 3900452

Built
1972
53 years old
Condition
Fair
inspected April 2024
Type
Frame
Concrete
Length
25 ft
2 main spans
Daily traffic
3,508
2015 count
Owner
State
State Highway Agency

About this bridge

SR 18 over Trib of Vermilion River is a concrete frame carrying SR 18 over Trib of Vermilion River in Huron County, Ohio. It was built in 1972, so it is 53 years old, older than the Ohio average of 47.3 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 3,508 vehicles a day, roughly 20% of them trucks, projected to reach 4,869 by 2035. The structure is 25 ft (7.6 m) long and 36 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSR 18
CrossesTrib of Vermilion River
Location.2 Miles West of SR60
RouteState Highway 18
CountyHuron County
StateOhio
Coordinates41.18877, -82.4108
Functional classRural Principal Arterial - Other

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.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length25 ft (7.6 m)
Longest span11 ft (3.4 m)
Deck width36 ft (11 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,508 (2015)
Projected traffic4,869 by 2035
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 18 over Trib of Vermilion River built?

It was built in 1972, making it 53 years old in 2025.

What condition is SR 18 over Trib of Vermilion River 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 April 2024.

How much traffic does SR 18 over Trib of Vermilion River carry?

About 3,508 vehicles per day (2015 count), of which roughly 20% are trucks.

How long is SR 18 over Trib of Vermilion River?

The structure is 25 ft (7.6 m) long with a longest span of 11 ft (3.4 m) and a deck 36 ft wide.

Who owns SR 18 over Trib of Vermilion River?

It is owned by the State Highway Agency.