US Bridges

Flat Run Rd. over Rock Lick Creek

GoodPosted for load

Highland County, Ohio · SOUTHOFSTRTE73 · Structure no. 3631524

Built
1976
49 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
48 ft
1 main span
Daily traffic
477
2015 count
Owner
County
County Highway Agency

About this bridge

Flat Run Rd. over Rock Lick Creek is a steel stringer/multi-beam or girder carrying Flat Run Rd. over Rock Lick Creek in Highland County, Ohio. It was built in 1976, so it is 49 years old, older than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 477 vehicles a day, roughly 8% of them trucks, projected to reach 662 by 2038. The structure is 48 ft (14.6 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesFlat Run Rd.
CrossesRock Lick Creek
LocationSOUTHOFSTRTE73
RouteCounty Highway C0053
CountyHighland County
StateOhio
Coordinates39.05342, -83.52634
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating35.7 US tons
Inventory rating21.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span45 ft (13.7 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic477 (2015)
Projected traffic662 by 2038
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Flat Run Rd. over Rock Lick Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is Flat Run Rd. over Rock Lick Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does Flat Run Rd. over Rock Lick Creek carry?

About 477 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Flat Run Rd. over Rock Lick Creek?

The structure is 48 ft (14.6 m) long with a longest span of 45 ft (13.7 m) and a deck 25 ft wide.

Who owns Flat Run Rd. over Rock Lick Creek?

It is owned by the County Highway Agency.