US Bridges

SR 772 over Ralston Run

Poor

Ross County, Ohio · 7.88 MI N of Pik County · Structure no. 7105363

Built
1980
45 years old
Condition
Poor
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
98 ft
3 main spans
Daily traffic
2,704
2015 count
Owner
State
State Highway Agency

About this bridge

SR 772 over Ralston Run is a prestressed concrete continuous box beam or girders - multiple carrying SR 772 over Ralston Run in Ross County, Ohio. It was built in 1980, so it is 45 years old, younger 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.

It carries about 2,704 vehicles a day, roughly 4% of them trucks, projected to reach 3,753 by 2035. The structure is 98 ft (29.9 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 772
CrossesRalston Run
Location7.88 MI N of Pik County
RouteState Highway 772
CountyRoss County
StateOhio
Coordinates39.25594, -83.04955
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating46.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length98 ft (29.9 m)
Longest span32 ft (9.8 m)
Deck width38 ft (11.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,704 (2015)
Projected traffic3,753 by 2035
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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 772 over Ralston Run built?

It was built in 1980, making it 45 years old in 2025.

What condition is SR 772 over Ralston Run 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 October 2024.

How much traffic does SR 772 over Ralston Run carry?

About 2,704 vehicles per day (2015 count), of which roughly 4% are trucks.

How long is SR 772 over Ralston Run?

The structure is 98 ft (29.9 m) long with a longest span of 32 ft (9.8 m) and a deck 38 ft wide.

Who owns SR 772 over Ralston Run?

It is owned by the State Highway Agency.