US Bridges

SB SR-49 over I70

Good

Montgomery County, Ohio · Jct. IR-70 · Structure no. 5704502

Built
1960
65 years old, rebuilt 1994
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
330 ft
4 main spans
Daily traffic
3,541
2015 count
Owner
State
State Highway Agency

About this bridge

SB SR-49 over I70 is a steel continuous stringer/multi-beam or girder carrying SB SR-49 over I70 in Montgomery County, Ohio. It was built in 1960 and reconstructed in 1994, so it is 65 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.

It carries about 3,541 vehicles a day, roughly 18% of them trucks, projected to reach 4,915 by 2035. The structure is 330 ft (100.5 m) long and 42 ft wide.

CarriesSB SR-49
CrossesI70
LocationJct. IR-70
RouteState Highway 49
StateOhio
Coordinates39.85457, -84.37171
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment9: Superior to present desirable criteria
Operating rating53.6 US tons
Inventory rating42.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length330 ft (100.5 m)
Longest span86 ft (26.2 m)
Deck width42 ft (12.9 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,541 (2015)
Projected traffic4,915 by 2035
Trucks18%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 SB SR-49 over I70 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1994.

What condition is SB SR-49 over I70 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 August 2023.

How much traffic does SB SR-49 over I70 carry?

About 3,541 vehicles per day (2015 count), of which roughly 18% are trucks.

How long is SB SR-49 over I70?

The structure is 330 ft (100.5 m) long with a longest span of 86 ft (26.2 m) and a deck 42 ft wide.

Who owns SB SR-49 over I70?

It is owned by the State Highway Agency.