US Bridges

Green Lane T-346 over Black Ditch Creek

Fair

Bucks County, Pennsylvania · 1.12MI NW of US13 3263-C9 · Structure no. 000000000007589

Built
1937
88 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
26 ft
1 main span
Daily traffic
1,400
2012 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Green Lane T-346 over Black Ditch Creek is a concrete tee beam carrying Green Lane T-346 over Black Ditch Creek in Bucks County, Pennsylvania. It was built in 1937, so it is 88 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 1,400 vehicles a day, roughly 3% of them trucks, projected to reach 1,720 by 2032. The structure is 26 ft (7.9 m) long and 44 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesGreen Lane T-346
CrossesBlack Ditch Creek
Location1.12MI NW of US13 3263-C9
RouteCity Street 0
Coordinates40.13146, -74.85696
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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating33 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length26 ft (7.9 m)
Longest span25 ft (7.6 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2012)
Projected traffic1,720 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$119,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Green Lane T-346 over Black Ditch Creek built?

It was built in 1937, making it 88 years old in 2025.

What condition is Green Lane T-346 over Black Ditch 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 May 2024.

How much traffic does Green Lane T-346 over Black Ditch Creek carry?

About 1,400 vehicles per day (2012 count), of which roughly 3% are trucks.

How long is Green Lane T-346 over Black Ditch Creek?

The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 44 ft wide.

Who owns Green Lane T-346 over Black Ditch Creek?

It is owned by the Town or Township Highway Agency.