US Bridges

Narberth Avenue over AMTRAK Phil-Hbg.

PoorClosed to traffic

Montgomery County, Pennsylvania · 1 MI E. US-30 3478-J10 · Structure no. 000000000028211

Built
1902
123 years old, rebuilt 1947
Condition
Poor
inspected August 2024
Type
Girder and Floorbeam System
Steel
Length
109 ft
1 main span
Daily traffic
500
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Narberth Avenue over AMTRAK Phil-Hbg. is a steel girder and floorbeam system carrying Narberth Avenue over AMTRAK Phil-Hbg. in Montgomery County, Pennsylvania. It was built in 1902 and reconstructed in 1947, so it is 123 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 500 vehicles a day, projected to reach 500 by 2039. The structure is 109 ft (33.2 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNarberth Avenue
CrossesAMTRAK Phil-Hbg.
Location1 MI E. US-30 3478-J10
RouteCity Street 0
Coordinates40.00493, -75.25974
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry0: Immediate repair necessary to put back in service
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating29 US tons
Inventory rating17 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1 (+2 approach)
Design loadHS 20
Structure length109 ft (33.2 m)
Longest span65 ft (19.8 m)
Deck width24 ft (7.3 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2019)
Projected traffic500 by 2039
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesRailroad
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.6 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Narberth Avenue over AMTRAK Phil-Hbg. built?

It was built in 1902, making it 123 years old in 2025. It was reconstructed in 1947.

What condition is Narberth Avenue over AMTRAK Phil-Hbg. in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does Narberth Avenue over AMTRAK Phil-Hbg. carry?

About 500 vehicles per day (2019 count).

How long is Narberth Avenue over AMTRAK Phil-Hbg.?

The structure is 109 ft (33.2 m) long with a longest span of 65 ft (19.8 m) and a deck 24 ft wide.

Who owns Narberth Avenue over AMTRAK Phil-Hbg.?

It is owned by the Town or Township Highway Agency.