US Bridges

SR 0081 I-81 SB over TR 438 & Tunkhnock Creek

Fair

Lackawanna County, Pennsylvania · Scott Twp over TR 438 · Structure no. 000000000020482

Built
1961
64 years old, rebuilt 2017
Condition
Fair
inspected October 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
251 ft
4 main spans
Daily traffic
12,270
2024 count
Owner
State
State Highway Agency

About this bridge

SR 0081 I-81 SB over TR 438 & Tunkhnock Creek is a prestressed concrete box beam or girders - multiple carrying SR 0081 I-81 SB over TR 438 & Tunkhnock Creek in Lackawanna County, Pennsylvania. It was built in 1961 and reconstructed in 2017, so it is 64 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 12,270 vehicles a day, roughly 26% of them trucks, projected to reach 17,632 by 2032. The structure is 251 ft (76.5 m) long and 50 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR 0081 I-81 SB
CrossesTR 438 & Tunkhnock Creek
LocationScott Twp over TR 438
RouteInterstate 81
Coordinates41.57657, -75.65463
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
Deck8 Very GoodNo problems noted.
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 inspectionOctober 2022
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 rating89.9 US tons
Inventory rating42 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length251 ft (76.5 m)
Longest span88 ft (26.8 m)
Deck width50 ft (15.1 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,270 (2024)
Projected traffic17,632 by 2032
Trucks26%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 0081 I-81 SB over TR 438 & Tunkhnock Creek built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2017.

What condition is SR 0081 I-81 SB over TR 438 & Tunkhnock 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 October 2022.

How much traffic does SR 0081 I-81 SB over TR 438 & Tunkhnock Creek carry?

About 12,270 vehicles per day (2024 count), of which roughly 26% are trucks.

How long is SR 0081 I-81 SB over TR 438 & Tunkhnock Creek?

The structure is 251 ft (76.5 m) long with a longest span of 88 ft (26.8 m) and a deck 50 ft wide.

Who owns SR 0081 I-81 SB over TR 438 & Tunkhnock Creek?

It is owned by the State Highway Agency.