US Bridges

Pa Tpk (I-476) over US6&11 SR0407 Cp RR

Fair

Lackawanna County, Pennsylvania · Clarks Summit Borough · Structure no. 000000000020957

Built
1955
70 years old, rebuilt 2015
Condition
Fair
inspected July 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
1,627 ft
10 main spans
Daily traffic
6,895
2001 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (I-476) over US6&11 SR0407 Cp RR is a steel continuous girder and floorbeam system carrying Pa Tpk (I-476) over US6&11 SR0407 Cp RR in Lackawanna County, Pennsylvania. It was built in 1955 and reconstructed in 2015, so it is 70 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 6,895 vehicles a day, roughly 19% of them trucks, projected to reach 10,187 by 2030. The structure is 1,627 ft (495.9 m) long and 61 ft wide.

CarriesPa Tpk (I-476)
CrossesUS6&11 SR0407 Cp RR
LocationClarks Summit Borough
RouteInterstate 476
Coordinates41.48333, -75.69167
Functional classUrban Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating38 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length1,627 ft (495.9 m)
Longest span170 ft (51.8 m)
Deck width61 ft (18.6 m)
Roadway width55 ft (16.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,895 (2001)
Projected traffic10,187 by 2030
Trucks19%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed—
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$25.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa Tpk (I-476) over US6&11 SR0407 Cp RR built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 2015.

What condition is Pa Tpk (I-476) over US6&11 SR0407 Cp RR 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 July 2023.

How much traffic does Pa Tpk (I-476) over US6&11 SR0407 Cp RR carry?

About 6,895 vehicles per day (2001 count), of which roughly 19% are trucks.

How long is Pa Tpk (I-476) over US6&11 SR0407 Cp RR?

The structure is 1,627 ft (495.9 m) long with a longest span of 170 ft (51.8 m) and a deck 61 ft wide.

Who owns Pa Tpk (I-476) over US6&11 SR0407 Cp RR?

It is owned by the State Toll Authority.