US Bridges

Allentown Road over Br of Unami CREEK/2806G3

PoorPosted for load

Bucks County, Pennsylvania · 1MI.N.TRUMBAUERSV. 13B05 · Structure no. 000000000007403

Built
1951
74 years old
Condition
Poor
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
23 ft
1 main span
Daily traffic
3,699
2024 count
Owner
State
State Highway Agency

About this bridge

Allentown Road over Br of Unami CREEK/2806G3 is a steel stringer/multi-beam or girder carrying Allentown Road over Br of Unami CREEK/2806G3 in Bucks County, Pennsylvania. It was built in 1951, so it is 74 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 3,699 vehicles a day, roughly 9% of them trucks, projected to reach 3,818 by 2032. The structure is 23 ft (7 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesAllentown Road
CrossesBr of Unami CREEK/2806G3
Location1MI.N.TRUMBAUERSV. 13B05
RouteState Highway 0
Coordinates40.41983, -75.39531
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23 US tons
Inventory rating14 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span22 ft (6.7 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,699 (2024)
Projected traffic3,818 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$45,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Allentown Road over Br of Unami CREEK/2806G3 built?

It was built in 1951, making it 74 years old in 2025.

What condition is Allentown Road over Br of Unami CREEK/2806G3 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.

How much traffic does Allentown Road over Br of Unami CREEK/2806G3 carry?

About 3,699 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Allentown Road over Br of Unami CREEK/2806G3?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.7 m) and a deck 36 ft wide.

Who owns Allentown Road over Br of Unami CREEK/2806G3?

It is owned by the State Highway Agency.