US Bridges

I-81 SB (lr 1005) over Reading & Northern RR

Fair

Schuylkill County, Pennsylvania · 0.75 Mi.N.Of Exit 107(33) · Structure no. 000000000030570

Built
1969
56 years old, rebuilt 1988
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
176 ft
3 main spans
Daily traffic
11,788
2024 count
Owner
State
State Highway Agency

About this bridge

I-81 SB (lr 1005) over Reading & Northern RR is a prestressed concrete box beam or girders - multiple carrying I-81 SB (lr 1005) over Reading & Northern RR in Schuylkill County, Pennsylvania. It was built in 1969 and reconstructed in 1988, so it is 56 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 11,788 vehicles a day, roughly 35% of them trucks, projected to reach 15,784 by 2032. The structure is 176 ft (53.6 m) long and 43 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesI-81 SB (lr 1005)
CrossesReading & Northern RR
Location0.75 Mi.N.Of Exit 107(33)
RouteInterstate 81
CountySchuylkill County
StatePennsylvania
Coordinates40.62704, -76.44842
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95 US tons
Inventory rating46 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length176 ft (53.6 m)
Longest span57 ft (17.4 m)
Deck width43 ft (13.2 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,788 (2024)
Projected traffic15,784 by 2032
Trucks35%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed8.7 mi (14 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-81 SB (lr 1005) over Reading & Northern RR built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1988.

What condition is I-81 SB (lr 1005) over Reading & Northern RR 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 2024.

How much traffic does I-81 SB (lr 1005) over Reading & Northern RR carry?

About 11,788 vehicles per day (2024 count), of which roughly 35% are trucks.

How long is I-81 SB (lr 1005) over Reading & Northern RR?

The structure is 176 ft (53.6 m) long with a longest span of 57 ft (17.4 m) and a deck 43 ft wide.

Who owns I-81 SB (lr 1005) over Reading & Northern RR?

It is owned by the State Highway Agency.