US Bridges

SR 772 over Ralston Run

Fair

Ross County, Ohio · 7.46 MI S 0F US 50 · Structure no. 7105444

Built
1997
28 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
112 ft
1 main span
Daily traffic
2,704
2015 count
Owner
State
State Highway Agency

About this bridge

SR 772 over Ralston Run is a prestressed concrete stringer/multi-beam or girder carrying SR 772 over Ralston Run in Ross County, Ohio. It was built in 1997, so it is 28 years old, younger 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 2,704 vehicles a day, roughly 4% of them trucks, projected to reach 3,753 by 2035. The structure is 112 ft (34.2 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR 772
CrossesRalston Run
Location7.46 MI S 0F US 50
RouteState Highway 772
CountyRoss County
StateOhio
Coordinates39.27108, -83.05287
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 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 alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length112 ft (34.2 m)
Longest span106 ft (32.3 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 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 closed5 mi (8 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 1997, making it 28 years old in 2025.

What condition is SR 772 over Ralston 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 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 112 ft (34.2 m) long with a longest span of 106 ft (32.3 m) and a deck 32 ft wide.

Who owns SR 772 over Ralston Run?

It is owned by the State Highway Agency.