US Bridges

Alex-Bell (C78) over I675

Good

Montgomery County, Ohio · .33MI W of JCT SR48 · Structure no. 5711304

Built
1985
40 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
282 ft
2 main spans
Daily traffic
13,638
2015 count
Owner
State
State Highway Agency

About this bridge

Alex-Bell (C78) over I675 is a steel continuous stringer/multi-beam or girder carrying Alex-Bell (C78) over I675 in Montgomery County, Ohio. It was built in 1985, so it is 40 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.

It carries about 13,638 vehicles a day, roughly 7% of them trucks, projected to reach 92,130 by 2035. The structure is 282 ft (86 m) long and 83 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAlex-Bell (C78)
CrossesI675
Location.33MI W of JCT SR48
RouteCounty Highway 78
CountyMontgomery County
StateOhio
Coordinates39.64401, -84.16237
Functional classUrban Minor Arterial

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.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating75 US tons
Inventory rating57.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length282 ft (86 m)
Longest span141 ft (43 m)
Deck width83 ft (25.2 m)
Roadway width81 ft (24.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,638 (2015)
Projected traffic92,130 by 2035
Trucks7%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Alex-Bell (C78) over I675 built?

It was built in 1985, making it 40 years old in 2025.

What condition is Alex-Bell (C78) over I675 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 September 2023.

How much traffic does Alex-Bell (C78) over I675 carry?

About 13,638 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is Alex-Bell (C78) over I675?

The structure is 282 ft (86 m) long with a longest span of 141 ft (43 m) and a deck 83 ft wide.

Who owns Alex-Bell (C78) over I675?

It is owned by the State Highway Agency.