US Bridges

SB SR 4 over T168(UNION Road)

Poor

Greene County, Ohio · .9 MI N Mon-Gre CO Line · Structure no. 2900033

Built
1959
66 years old
Condition
Poor
inspected October 2024
Type
Slab
Concrete Continuous
Length
124 ft
3 main spans
Daily traffic
10,605
2015 count
Owner
State
State Highway Agency

About this bridge

SB SR 4 over T168(UNION Road) is a concrete continuous slab carrying SB SR 4 over T168(UNION Road) in Greene 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 10,605 vehicles a day, roughly 10% of them trucks, projected to reach 14,720 by 2035. The structure is 124 ft (37.8 m) long and 59 ft wide.

Location

Open in Google Maps
CarriesSB SR 4
CrossesT168(UNION Road)
Location.9 MI N Mon-Gre CO Line
RouteState Highway 4
CountyGreene County
StateOhio
Coordinates39.8135, -84.08497
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length124 ft (37.8 m)
Longest span44 ft (13.4 m)
Deck width59 ft (18 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,605 (2015)
Projected traffic14,720 by 2035
Trucks10%
Lanes on structure2
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 4 over T168(UNION Road) built?

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

What condition is SB SR 4 over T168(UNION Road) in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does SB SR 4 over T168(UNION Road) carry?

About 10,605 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is SB SR 4 over T168(UNION Road)?

The structure is 124 ft (37.8 m) long with a longest span of 44 ft (13.4 m) and a deck 59 ft wide.

Who owns SB SR 4 over T168(UNION Road)?

It is owned by the State Highway Agency.