US Bridges

SR 1100 Twp RD 507 over SR 0081 I-81

Fair

Lackawanna County, Pennsylvania · Greenfield Twp 3M N TR107 · Structure no. 000000000020488

Built
1960
65 years old, rebuilt 1981
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
255 ft
2 main spans
Daily traffic
42
2024 count
Owner
State
State Highway Agency

About this bridge

SR 1100 Twp RD 507 over SR 0081 I-81 is a prestressed concrete box beam or girders - multiple carrying SR 1100 Twp RD 507 over SR 0081 I-81 in Lackawanna County, Pennsylvania. It was built in 1960 and reconstructed in 1981, so it is 65 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 6 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 42 vehicles a day, roughly 9% of them trucks, projected to reach 60 by 2032. The structure is 255 ft (77.7 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR 1100 Twp RD 507
CrossesSR 0081 I-81
LocationGreenfield Twp 3M N TR107
RouteState Highway 0
CountyLackawanna County
StatePennsylvania
Coordinates41.63403, -75.64712
Functional classRural Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating47 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length255 ft (77.7 m)
Longest span93 ft (28.3 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42 (2024)
Projected traffic60 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

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$420,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 1100 Twp RD 507 over SR 0081 I-81 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1981.

What condition is SR 1100 Twp RD 507 over SR 0081 I-81 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 SR 1100 Twp RD 507 over SR 0081 I-81 carry?

About 42 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is SR 1100 Twp RD 507 over SR 0081 I-81?

The structure is 255 ft (77.7 m) long with a longest span of 93 ft (28.3 m) and a deck 33 ft wide.

Who owns SR 1100 Twp RD 507 over SR 0081 I-81?

It is owned by the State Highway Agency.