US Bridges

Shady Lane over Allegheny Creek

Fair

Northampton County, Pennsylvania · N. of Hartzells Ferry · Structure no. 000000000028886

Built
1908
117 years old
Condition
Fair
inspected November 2023
Type
Arch - Deck
Concrete
Length
34 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 concrete arch - deck carrying Shady Lane over Allegheny Creek in Northampton County, Pennsylvania. It was built in 1908, so it is 117 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 34 ft (10.4 m) long and 19 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesShady Lane
CrossesAllegheny Creek
LocationN. of Hartzells Ferry
RouteCity Street 0
CountyNorthampton County
StatePennsylvania
Coordinates40.85635, -75.09114
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
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length34 ft (10.4 m)
Longest span34 ft (10.4 m)
Deck width19 ft (5.8 m)
Roadway width16 ft (4.8 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 closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$83,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Shady Lane over Allegheny Creek built?

It was built in 1908, making it 117 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 November 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 34 ft (10.4 m) long with a longest span of 34 ft (10.4 m) and a deck 19 ft wide.

Who owns Shady Lane over Allegheny Creek?

It is owned by the Town or Township Highway Agency.