US Bridges

Canterbury Drive over Trib. Towamencin Creek

Fair

Montgomery County, Pennsylvania · 0.2MI East of Green LN RD · Structure no. 000000000057322

Built
1970
55 years old
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
25 ft
1 main span
Daily traffic
99
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Canterbury Drive over Trib. Towamencin Creek is a prestressed concrete box beam or girders - multiple carrying Canterbury Drive over Trib. Towamencin Creek in Montgomery County, Pennsylvania. It was built in 1970, so it is 55 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 99 vehicles a day, roughly 2% of them trucks, projected to reach 99 by 2020. The structure is 25 ft (7.6 m) long and 38 ft wide.

CarriesCanterbury Drive
CrossesTrib. Towamencin Creek
Location0.2MI East of Green LN RD
RouteCity Street 0
Coordinates40.23658, -75.33542
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
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 rating58 US tons
Inventory rating35.1 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width38 ft (11.5 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic99 (2020)
Projected traffic99 by 2020
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Canterbury Drive over Trib. Towamencin Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Canterbury Drive over Trib. Towamencin 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 January 2024.

How much traffic does Canterbury Drive over Trib. Towamencin Creek carry?

About 99 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Canterbury Drive over Trib. Towamencin Creek?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 38 ft wide.

Who owns Canterbury Drive over Trib. Towamencin Creek?

It is owned by the Town or Township Highway Agency.