US Bridges

Alden Avenue over Rock Run

Fair

Bucks County, Pennsylvania · 3152-A8 · Structure no. 000000000007606

Built
1962
63 years old, rebuilt 2016
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
25 ft
1 main span
Daily traffic
1,360
2012 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Alden Avenue over Rock Run is a prestressed concrete box beam or girders - multiple carrying Alden Avenue over Rock Run in Bucks County, Pennsylvania. It was built in 1962 and reconstructed in 2016, so it is 63 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 1,360 vehicles a day, projected to reach 1,760 by 2032. The structure is 25 ft (7.6 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAlden Avenue
CrossesRock Run
Location3152-A8
RouteCity Street 0
CountyBucks County
StatePennsylvania
Coordinates40.20478, -74.81134
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
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 inspectionSeptember 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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating37.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width45 ft (13.8 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,360 (2012)
Projected traffic1,760 by 2032
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Alden Avenue over Rock Run built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2016.

What condition is Alden Avenue over Rock Run 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 September 2024.

How much traffic does Alden Avenue over Rock Run carry?

About 1,360 vehicles per day (2012 count).

How long is Alden Avenue over Rock Run?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 45 ft wide.

Who owns Alden Avenue over Rock Run?

It is owned by the Town or Township Highway Agency.