US Bridges

Mount Pleasant Ave over Wissahickon Creek

Fair

Montgomery County, Pennsylvania · 1.6 MI NE PA-73 3257-C5 · Structure no. 000000000027967

Built
1931
94 years old, rebuilt 1991
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
98 ft
2 main spans
Daily traffic
7,035
2019 count
Owner
County
County Highway Agency

About this bridge

Mount Pleasant Ave over Wissahickon Creek is a prestressed concrete continuous box beam or girders - multiple carrying Mount Pleasant Ave over Wissahickon Creek in Montgomery County, Pennsylvania. It was built in 1931 and reconstructed in 1991, so it is 94 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 6 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 7,035 vehicles a day, projected to reach 6,535 by 2018. The structure is 98 ft (29.9 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesMount Pleasant Ave
CrossesWissahickon Creek
Location1.6 MI NE PA-73 3257-C5
RouteCity Street 0
CountyMontgomery County
StatePennsylvania
Coordinates40.15863, -75.23276
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating81 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length98 ft (29.9 m)
Longest span47 ft (14.3 m)
Deck width34 ft (10.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,035 (2019)
Projected traffic6,535 by 2018
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Mount Pleasant Ave over Wissahickon Creek built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1991.

What condition is Mount Pleasant Ave over Wissahickon 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 July 2024.

How much traffic does Mount Pleasant Ave over Wissahickon Creek carry?

About 7,035 vehicles per day (2019 count).

How long is Mount Pleasant Ave over Wissahickon Creek?

The structure is 98 ft (29.9 m) long with a longest span of 47 ft (14.3 m) and a deck 34 ft wide.

Who owns Mount Pleasant Ave over Wissahickon Creek?

It is owned by the County Highway Agency.