US Bridges

Pa Tpk (I-476) over Lizard Creek

Fair

Carbon County, Pennsylvania · 0.5 MI S of Bowmanstown · Structure no. 000000000009146

Built
1957
68 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
413 ft
5 main spans
Daily traffic
27,609
2001 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (I-476) over Lizard Creek is a steel stringer/multi-beam or girder carrying Pa Tpk (I-476) over Lizard Creek in Carbon County, Pennsylvania. It was built in 1957, so it is 68 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 27,609 vehicles a day, roughly 18% of them trucks, projected to reach 37,217 by 2030. The structure is 413 ft (125.9 m) long and 63 ft wide.

Location

Open in Google Maps
CarriesPa Tpk (I-476)
CrossesLizard Creek
Location0.5 MI S of Bowmanstown
RouteInterstate 476
CountyCarbon County
StatePennsylvania
Coordinates40.79317, -75.67059
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 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 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 rating74 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length413 ft (125.9 m)
Longest span84 ft (25.6 m)
Deck width63 ft (19.1 m)
Roadway width53 ft (16.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,609 (2001)
Projected traffic37,217 by 2030
Trucks18%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$825,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa Tpk (I-476) over Lizard Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Pa Tpk (I-476) over Lizard Creek 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 August 2023.

How much traffic does Pa Tpk (I-476) over Lizard Creek carry?

About 27,609 vehicles per day (2001 count), of which roughly 18% are trucks.

How long is Pa Tpk (I-476) over Lizard Creek?

The structure is 413 ft (125.9 m) long with a longest span of 84 ft (25.6 m) and a deck 63 ft wide.

Who owns Pa Tpk (I-476) over Lizard Creek?

It is owned by the State Toll Authority.