US Bridges

E Philadelphia Ave over PA-100

Fair

Montgomery County, Pennsylvania · Gilbertsvil 2915A08 · Structure no. 000000000027192

Built
1964
61 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
89 ft
1 main span
Daily traffic
13,986
2024 count
Owner
State
State Highway Agency

About this bridge

E Philadelphia Ave over PA-100 is a prestressed concrete box beam or girders - multiple carrying E Philadelphia Ave over PA-100 in Montgomery County, Pennsylvania. It was built in 1964, so it is 61 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 13,986 vehicles a day, roughly 9% of them trucks, projected to reach 17,667 by 2032. The structure is 89 ft (27.1 m) long and 67 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesE Philadelphia Ave
CrossesPA-100
LocationGilbertsvil 2915A08
RouteState Highway 73
CountyMontgomery County
StatePennsylvania
Coordinates40.32717, -75.62229
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103.9 US tons
Inventory rating34 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length89 ft (27.1 m)
Longest span86 ft (26.2 m)
Deck width67 ft (20.4 m)
Roadway width55 ft (16.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,986 (2024)
Projected traffic17,667 by 2032
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$610,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was E Philadelphia Ave over PA-100 built?

It was built in 1964, making it 61 years old in 2025.

What condition is E Philadelphia Ave over PA-100 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 August 2023.

How much traffic does E Philadelphia Ave over PA-100 carry?

About 13,986 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is E Philadelphia Ave over PA-100?

The structure is 89 ft (27.1 m) long with a longest span of 86 ft (26.2 m) and a deck 67 ft wide.

Who owns E Philadelphia Ave over PA-100?

It is owned by the State Highway Agency.