US Bridges

North Union Rd. over Elm Run

GoodPosted for load

Highland County, Ohio · NORTHEASTSTRTE73 · Structure no. 3631273

Built
1979
46 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
52 ft
1 main span
Daily traffic
168
2015 count
Owner
County
County Highway Agency

About this bridge

North Union Rd. over Elm Run is a steel stringer/multi-beam or girder carrying North Union Rd. over Elm Run in Highland County, Ohio. It was built in 1979, so it is 46 years old, younger 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 168 vehicles a day, roughly 7% of them trucks, projected to reach 233 by 2038. The structure is 52 ft (15.9 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNorth Union Rd.
CrossesElm Run
LocationNORTHEASTSTRTE73
RouteCounty Highway C0021
StateOhio
Coordinates39.08077, -83.51321
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
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 evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating38.3 US tons
Inventory rating22.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length52 ft (15.9 m)
Longest span49 ft (14.9 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic168 (2015)
Projected traffic233 by 2038
Trucks7%
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

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 North Union Rd. over Elm Run built?

It was built in 1979, making it 46 years old in 2025.

What condition is North Union Rd. over Elm Run 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 North Union Rd. over Elm Run carry?

About 168 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is North Union Rd. over Elm Run?

The structure is 52 ft (15.9 m) long with a longest span of 49 ft (14.9 m) and a deck 25 ft wide.

Who owns North Union Rd. over Elm Run?

It is owned by the County Highway Agency.