US Bridges

Pa 863 (lr 39066) over I-78 (lr 443)

Good

Lehigh County, Pennsylvania · New Smithville Exit I-78 · Structure no. 000000000053420

Built
2016
9 years old
Condition
Good
inspected August 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
122 ft
1 main span
Daily traffic
2,221
2023 count
Owner
State
State Highway Agency

About this bridge

Pa 863 (lr 39066) over I-78 (lr 443) is a prestressed concrete stringer/multi-beam or girder carrying Pa 863 (lr 39066) over I-78 (lr 443) in Lehigh County, Pennsylvania. It was built in 2016, so it is 9 years old, younger than the Pennsylvania average of 54.8 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 2,221 vehicles a day, roughly 13% of them trucks, projected to reach 4,120 by 2037. The structure is 122 ft (37.2 m) long and 63 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesPa 863 (lr 39066)
CrossesI-78 (lr 443)
LocationNew Smithville Exit I-78
RouteState Highway 863
CountyLehigh County
StatePennsylvania
Coordinates40.58002, -75.70774
Functional classUrban Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating43.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length122 ft (37.2 m)
Longest span119 ft (36.3 m)
Deck width63 ft (19.3 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,221 (2023)
Projected traffic4,120 by 2037
Trucks13%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.1 mi (13 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 Pa 863 (lr 39066) over I-78 (lr 443) built?

It was built in 2016, making it 9 years old in 2025.

What condition is Pa 863 (lr 39066) over I-78 (lr 443) 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 2022.

How much traffic does Pa 863 (lr 39066) over I-78 (lr 443) carry?

About 2,221 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Pa 863 (lr 39066) over I-78 (lr 443)?

The structure is 122 ft (37.2 m) long with a longest span of 119 ft (36.3 m) and a deck 63 ft wide.

Who owns Pa 863 (lr 39066) over I-78 (lr 443)?

It is owned by the State Highway Agency.