US Bridges

County Road 31 over Riley Run

Fair

Vinton County, Ohio · .2 Mi. S. of Jct. US50 · Structure no. 8230919

Built
1960
65 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
64 ft
1 main span
Daily traffic
117
2015 count
Owner
County
County Highway Agency

About this bridge

County Road 31 over Riley Run is a prestressed concrete box beam or girders - multiple carrying County Road 31 over Riley Run in Vinton County, Ohio. It was built in 1960, so it is 65 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 6 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 117 vehicles a day, roughly 8% of them trucks, projected to reach 162 by 2035. The structure is 64 ft (19.5 m) long and 23 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesCounty Road 31
CrossesRiley Run
Location.2 Mi. S. of Jct. US50
RouteCounty Highway C0031
CountyVinton County
StateOhio
Coordinates39.27059, -82.60645
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating107.1 US tons
Inventory rating64.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadH 15
Structure length64 ft (19.5 m)
Longest span60 ft (18.3 m)
Deck width23 ft (7 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic117 (2015)
Projected traffic162 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 31 over Riley Run built?

It was built in 1960, making it 65 years old in 2025.

What condition is County Road 31 over Riley Run 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 August 2024.

How much traffic does County Road 31 over Riley Run carry?

About 117 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is County Road 31 over Riley Run?

The structure is 64 ft (19.5 m) long with a longest span of 60 ft (18.3 m) and a deck 23 ft wide.

Who owns County Road 31 over Riley Run?

It is owned by the County Highway Agency.