US Bridges

Unionville Road over US 1 By-Pass

Fair

Chester County, Pennsylvania · No. Kennett Square 47E3 · Structure no. 000000000010051

Built
1965
60 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
209 ft
4 main spans
Daily traffic
15,621
2024 count
Owner
State
State Highway Agency

About this bridge

Unionville Road over US 1 By-Pass is a prestressed concrete box beam or girders - multiple carrying Unionville Road over US 1 By-Pass in Chester County, Pennsylvania. It was built in 1965, so it is 60 years old, older than the Pennsylvania average of 54.8 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 15,621 vehicles a day, roughly 4% of them trucks, projected to reach 17,049 by 2032. The structure is 209 ft (63.7 m) long and 66 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesUnionville Road
CrossesUS 1 By-Pass
LocationNo. Kennett Square 47E3
RouteState Highway 82
CountyChester County
StatePennsylvania
Coordinates39.85675, -75.71535
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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 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 rating59 US tons
Inventory rating28 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length209 ft (63.7 m)
Longest span65 ft (19.8 m)
Deck width66 ft (20 m)
Roadway width56 ft (17.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,621 (2024)
Projected traffic17,049 by 2032
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.8 mi (11 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Unionville Road over US 1 By-Pass built?

It was built in 1965, making it 60 years old in 2025.

What condition is Unionville Road over US 1 By-Pass 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 March 2024.

How much traffic does Unionville Road over US 1 By-Pass carry?

About 15,621 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Unionville Road over US 1 By-Pass?

The structure is 209 ft (63.7 m) long with a longest span of 65 ft (19.8 m) and a deck 66 ft wide.

Who owns Unionville Road over US 1 By-Pass?

It is owned by the State Highway Agency.