US Bridges

Belmont Avenue over Chamounix Drive

Fair

Philadelphia County, Pennsylvania · Fairmount Park 3589F02 · Structure no. 000000000038919

Built
1896
129 years old
Condition
Fair
inspected March 2024
Type
Arch - Deck
Masonry
Length
28 ft
1 main span
Daily traffic
17,999
2023 count
Owner
State
State Highway Agency

About this bridge

Belmont Avenue over Chamounix Drive is a masonry arch - deck carrying Belmont Avenue over Chamounix Drive in Philadelphia County, Pennsylvania. It was built in 1896, so it is 129 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 17,999 vehicles a day, roughly 4% of them trucks, projected to reach 23,968 by 2032. The structure is 28 ft (8.5 m) long and 105 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesBelmont Avenue
CrossesChamounix Drive
LocationFairmount Park 3589F02
RouteState Highway 0
CountyPhiladelphia County
StatePennsylvania
Coordinates39.99357, -75.21776
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating34 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width105 ft (32 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,999 (2023)
Projected traffic23,968 by 2032
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed6.8 mi (11 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$351,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Belmont Avenue over Chamounix Drive built?

It was built in 1896, making it 129 years old in 2025.

What condition is Belmont Avenue over Chamounix Drive 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 March 2024.

How much traffic does Belmont Avenue over Chamounix Drive carry?

About 17,999 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Belmont Avenue over Chamounix Drive?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 105 ft wide.

Who owns Belmont Avenue over Chamounix Drive?

It is owned by the State Highway Agency.