US Bridges

Shady Lane over Allegheny Creek

Fair

Northampton County, Pennsylvania · N. of Hartzells Ferry · Structure no. 000000000028887

Built
1946
79 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
150
2010 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Shady Lane over Allegheny Creek is a steel stringer/multi-beam or girder carrying Shady Lane over Allegheny Creek in Northampton County, Pennsylvania. It was built in 1946, so it is 79 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 150 vehicles a day, roughly 1% of them trucks, projected to reach 175 by 2020. The structure is 55 ft (16.8 m) long and 27 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesShady Lane
CrossesAllegheny Creek
LocationN. of Hartzells Ferry
RouteCity Street 0
CountyNorthampton County
StatePennsylvania
Coordinates40.86048, -75.09096
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span52 ft (15.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2010)
Projected traffic175 by 2020
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$62,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Shady Lane over Allegheny Creek built?

It was built in 1946, making it 79 years old in 2025.

What condition is Shady Lane over Allegheny 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 2023.

How much traffic does Shady Lane over Allegheny Creek carry?

About 150 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is Shady Lane over Allegheny Creek?

The structure is 55 ft (16.8 m) long with a longest span of 52 ft (15.8 m) and a deck 27 ft wide.

Who owns Shady Lane over Allegheny Creek?

It is owned by the Town or Township Highway Agency.