US Bridges

Pa Tpk (I-476) over Sm Brook & Aband. RR

Fair

Lackawanna County, Pennsylvania · Moosic Borough · Structure no. 000000000020942

Built
1955
70 years old, rebuilt 1994
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
346 ft
3 main spans
Daily traffic
6,575
2001 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (I-476) over Sm Brook & Aband. RR is a steel continuous stringer/multi-beam or girder carrying Pa Tpk (I-476) over Sm Brook & Aband. RR in Lackawanna County, Pennsylvania. It was built in 1955 and reconstructed in 1994, 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 6,575 vehicles a day, roughly 16% of them trucks, projected to reach 14,039 by 2030. The structure is 346 ft (105.5 m) long and 62 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesPa Tpk (I-476)
CrossesSm Brook & Aband. RR
LocationMoosic Borough
RouteInterstate 476
CountyLackawanna County
StatePennsylvania
Coordinates41.35235, -75.71243
Functional classRural 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating60 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length346 ft (105.5 m)
Longest span115 ft (35.1 m)
Deck width62 ft (18.9 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,575 (2001)
Projected traffic14,039 by 2030
Trucks16%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed1.9 mi (3 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa Tpk (I-476) over Sm Brook & Aband. RR built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1994.

What condition is Pa Tpk (I-476) over Sm Brook & Aband. 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 Sm Brook & Aband. RR carry?

About 6,575 vehicles per day (2001 count), of which roughly 16% are trucks.

How long is Pa Tpk (I-476) over Sm Brook & Aband. RR?

The structure is 346 ft (105.5 m) long with a longest span of 115 ft (35.1 m) and a deck 62 ft wide.

Who owns Pa Tpk (I-476) over Sm Brook & Aband. RR?

It is owned by the State Toll Authority.