US Bridges

Union Rd. (C25) over I70

Fair

Montgomery County, Ohio · 1.41MI.E.OF Jct. NB-SR-49 · Structure no. 5705436

Built
1959
66 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
214 ft
4 main spans
Daily traffic
938
2015 count
Owner
State
State Highway Agency

About this bridge

Union Rd. (C25) over I70 is a steel continuous stringer/multi-beam or girder carrying Union Rd. (C25) over I70 in Montgomery County, Ohio. It was built in 1959, so it is 66 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 938 vehicles a day, roughly 2% of them trucks, projected to reach 72,880 by 2035. The structure is 214 ft (65.2 m) long and 35 ft wide.

Location

Open in Google Maps
CarriesUnion Rd. (C25)
CrossesI70
Location1.41MI.E.OF Jct. NB-SR-49
RouteCity Street 125
CountyMontgomery County
StateOhio
Coordinates39.8548, -84.31131
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length214 ft (65.2 m)
Longest span63 ft (19.2 m)
Deck width35 ft (10.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic938 (2015)
Projected traffic72,880 by 2035
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Union Rd. (C25) over I70 built?

It was built in 1959, making it 66 years old in 2025.

What condition is Union Rd. (C25) over I70 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 Union Rd. (C25) over I70 carry?

About 938 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is Union Rd. (C25) over I70?

The structure is 214 ft (65.2 m) long with a longest span of 63 ft (19.2 m) and a deck 35 ft wide.

Who owns Union Rd. (C25) over I70?

It is owned by the State Highway Agency.