US Bridges

SR 4003 (LR39083) over SR 78 (lr 443)

Fair

Lehigh County, Pennsylvania · Kecks Road over I-78 · Structure no. 000000000023355

Built
1958
67 years old, rebuilt 2001
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
116 ft
1 main span
Daily traffic
2,487
2024 count
Owner
State
State Highway Agency

About this bridge

SR 4003 (LR39083) over SR 78 (lr 443) is a prestressed concrete stringer/multi-beam or girder carrying SR 4003 (LR39083) over SR 78 (lr 443) in Lehigh County, Pennsylvania. It was built in 1958 and reconstructed in 2001, so it is 67 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 6 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 2,487 vehicles a day, roughly 7% of them trucks, projected to reach 965 by 2032. The structure is 116 ft (35.4 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesSR 4003 (LR39083)
CrossesSR 78 (lr 443)
LocationKecks Road over I-78
RouteState Highway 0
CountyLehigh County
StatePennsylvania
Coordinates40.57889, -75.69106
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating91.1 US tons
Inventory rating19 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length116 ft (35.4 m)
Longest span112 ft (34.1 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,487 (2024)
Projected traffic965 by 2032
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.7 mi (14 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 4003 (LR39083) over SR 78 (lr 443) built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2001.

What condition is SR 4003 (LR39083) over SR 78 (lr 443) 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 September 2023.

How much traffic does SR 4003 (LR39083) over SR 78 (lr 443) carry?

About 2,487 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is SR 4003 (LR39083) over SR 78 (lr 443)?

The structure is 116 ft (35.4 m) long with a longest span of 112 ft (34.1 m) and a deck 33 ft wide.

Who owns SR 4003 (LR39083) over SR 78 (lr 443)?

It is owned by the State Highway Agency.