US Bridges

SR 4 NB over T168(UNION Road)

Fair

Greene County, Ohio · .9 MI N of Mon-Gre CO Lin · Structure no. 2900068

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

About this bridge

SR 4 NB over T168(UNION Road) is a concrete continuous slab carrying SR 4 NB 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 fair condition with a lowest component rating of 5 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 10,605 vehicles a day, roughly 10% of them trucks, projected to reach 14,720 by 2035. The structure is 126 ft (38.4 m) long and 59 ft wide.

Location

Open in Google Maps
CarriesSR 4 NB
CrossesT168(UNION Road)
Location.9 MI N of Mon-Gre CO Lin
RouteState Highway 4
CountyGreene County
StateOhio
Coordinates39.81336, -84.08474
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 length126 ft (38.4 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 SR 4 NB over T168(UNION Road) built?

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

What condition is SR 4 NB over T168(UNION Road) 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 SR 4 NB over T168(UNION Road) carry?

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

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

The structure is 126 ft (38.4 m) long with a longest span of 44 ft (13.4 m) and a deck 59 ft wide.

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

It is owned by the State Highway Agency.