US Bridges

SR 0081 I-81 NB over SR 0106 TR 106

Poor

Susquehanna County, Pennsylvania · Lenox Twp over TR 106 · Structure no. 000000000032193

Built
1961
64 years old, rebuilt 2009
Condition
Poor
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
173 ft
3 main spans
Daily traffic
10,769
2024 count
Owner
State
State Highway Agency

About this bridge

SR 0081 I-81 NB over SR 0106 TR 106 is a steel continuous stringer/multi-beam or girder carrying SR 0081 I-81 NB over SR 0106 TR 106 in Susquehanna County, Pennsylvania. It was built in 1961 and reconstructed in 2009, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 10,769 vehicles a day, roughly 30% of them trucks, projected to reach 14,323 by 2046. The structure is 173 ft (52.7 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 0081 I-81 NB
CrossesSR 0106 TR 106
LocationLenox Twp over TR 106
RouteInterstate 81
Coordinates41.70936, -75.67031
Functional classRural Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
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 geometry8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating68 US tons
Inventory rating40 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length173 ft (52.7 m)
Longest span71 ft (21.6 m)
Deck width46 ft (13.9 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,769 (2024)
Projected traffic14,323 by 2046
Trucks30%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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$541,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 0081 I-81 NB over SR 0106 TR 106 built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2009.

What condition is SR 0081 I-81 NB over SR 0106 TR 106 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does SR 0081 I-81 NB over SR 0106 TR 106 carry?

About 10,769 vehicles per day (2024 count), of which roughly 30% are trucks.

How long is SR 0081 I-81 NB over SR 0106 TR 106?

The structure is 173 ft (52.7 m) long with a longest span of 71 ft (21.6 m) and a deck 46 ft wide.

Who owns SR 0081 I-81 NB over SR 0106 TR 106?

It is owned by the State Highway Agency.