US Bridges

County Road 18 over Middle Fork Salt Creek

PoorPosted for load

Vinton County, Ohio · .6 MI N of JCT CR 42 · Structure no. 8230625

Built
1939
86 years old
Condition
Poor
inspected August 2024
Type
Slab
Concrete
Length
27 ft
1 main span
Daily traffic
252
2015 count
Owner
County
County Highway Agency

About this bridge

County Road 18 over Middle Fork Salt Creek is a concrete slab carrying County Road 18 over Middle Fork Salt Creek in Vinton County, Ohio. It was built in 1939, so it is 86 years old, older than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 252 vehicles a day, roughly 8% of them trucks, projected to reach 350 by 2035. The structure is 27 ft (8.2 m) long and 22 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesCounty Road 18
CrossesMiddle Fork Salt Creek
Location.6 MI N of JCT CR 42
RouteCounty Highway C0018
StateOhio
Coordinates39.31392, -82.57089
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be 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 alignment6: Equal to present minimum criteria
Operating rating21.4 US tons
Inventory rating14.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length27 ft (8.2 m)
Longest span25 ft (7.6 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic252 (2015)
Projected traffic350 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 County Road 18 over Middle Fork Salt Creek built?

It was built in 1939, making it 86 years old in 2025.

What condition is County Road 18 over Middle Fork Salt Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does County Road 18 over Middle Fork Salt Creek carry?

About 252 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is County Road 18 over Middle Fork Salt Creek?

The structure is 27 ft (8.2 m) long with a longest span of 25 ft (7.6 m) and a deck 22 ft wide.

Who owns County Road 18 over Middle Fork Salt Creek?

It is owned by the County Highway Agency.