US Bridges

SR 0081 I-81 NB over Susquehanna ST

Fair

Susquehanna County, Pennsylvania · N Milford Bo over Susq ST · Structure no. 000000000032205

Built
1961
64 years old, rebuilt 1984
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
11,236
2023 count
Owner
State
State Highway Agency

About this bridge

SR 0081 I-81 NB over Susquehanna ST is a prestressed concrete box beam or girders - multiple carrying SR 0081 I-81 NB over Susquehanna ST in Susquehanna County, Pennsylvania. It was built in 1961 and reconstructed in 1984, 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 11,236 vehicles a day, roughly 33% of them trucks, projected to reach 13,051 by 2032. The structure is 38 ft (11.6 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 0081 I-81 NB
CrossesSusquehanna ST
LocationN Milford Bo over Susq ST
RouteInterstate 81
Coordinates41.8825, -75.72302
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating42 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length38 ft (11.6 m)
Longest span37 ft (11.3 m)
Deck width46 ft (14.1 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,236 (2023)
Projected traffic13,051 by 2032
Trucks33%
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 byPrivate (other than railroad)
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$37,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 0081 I-81 NB over Susquehanna ST built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1984.

What condition is SR 0081 I-81 NB over Susquehanna ST 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 2024.

How much traffic does SR 0081 I-81 NB over Susquehanna ST carry?

About 11,236 vehicles per day (2023 count), of which roughly 33% are trucks.

How long is SR 0081 I-81 NB over Susquehanna ST?

The structure is 38 ft (11.6 m) long with a longest span of 37 ft (11.3 m) and a deck 46 ft wide.

Who owns SR 0081 I-81 NB over Susquehanna ST?

It is owned by the State Highway Agency and maintained by the Private (other than railroad).