US Bridges

Pa Tpk (I-276) over T-357 Narcissa Road

Fair

Montgomery County, Pennsylvania · East of Norristown Intg · Structure no. 000000000028174

Built
1954
71 years old, rebuilt 1987
Condition
Fair
inspected May 2023
Type
Other
Other
Length
31 ft
1 main span
Daily traffic
73,197
2001 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (I-276) over T-357 Narcissa Road is a other other carrying Pa Tpk (I-276) over T-357 Narcissa Road in Montgomery County, Pennsylvania. It was built in 1954 and reconstructed in 1987, so it is 71 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 73,197 vehicles a day, roughly 14% of them trucks, projected to reach 115,988 by 2030. The structure is 31 ft (9.4 m) long and 134 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesPa Tpk (I-276)
CrossesT-357 Narcissa Road
LocationEast of Norristown Intg
RouteInterstate 276
CountyMontgomery County
StatePennsylvania
Coordinates40.11387, -75.2717
Functional classUrban Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating31 US tons

Structure

Structure typeOther
MaterialOther
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span28 ft (8.5 m)
Deck width134 ft (40.7 m)
Roadway width126 ft (38.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic73,197 (2001)
Projected traffic115,988 by 2030
Trucks14%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$201,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pa Tpk (I-276) over T-357 Narcissa Road built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1987.

What condition is Pa Tpk (I-276) over T-357 Narcissa Road 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 May 2023.

How much traffic does Pa Tpk (I-276) over T-357 Narcissa Road carry?

About 73,197 vehicles per day (2001 count), of which roughly 14% are trucks.

How long is Pa Tpk (I-276) over T-357 Narcissa Road?

The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.5 m) and a deck 134 ft wide.

Who owns Pa Tpk (I-276) over T-357 Narcissa Road?

It is owned by the State Toll Authority.