US Bridges

T-331 over Pa Tpk (I-276)

Poor

Montgomery County, Pennsylvania · East of Ft Wash Interchg. · Structure no. 000000000028187

Built
1954
71 years old
Condition
Poor
inspected July 2024
Type
Girder and Floorbeam System
Steel
Length
111 ft
1 main span
Daily traffic
200
1992 count
Owner
Toll Authority
State Toll Authority

About this bridge

T-331 over Pa Tpk (I-276) is a steel girder and floorbeam system carrying T-331 over Pa Tpk (I-276) in Montgomery County, Pennsylvania. It was built in 1954, 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 poor condition with a lowest component rating of 4 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.

It carries about 200 vehicles a day, roughly 2% of them trucks, projected to reach 315 by 2030. The structure is 111 ft (33.8 m) long and 32 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesT-331
CrossesPa Tpk (I-276)
LocationEast of Ft Wash Interchg.
RouteCity Street 0
CountyMontgomery County
StatePennsylvania
Coordinates40.1342, -75.18587
Functional classUrban Local

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating61 US tons
Inventory rating36 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length111 ft (33.8 m)
Longest span109 ft (33.2 m)
Deck width32 ft (9.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (1992)
Projected traffic315 by 2030
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$612,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was T-331 over Pa Tpk (I-276) built?

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

What condition is T-331 over Pa Tpk (I-276) 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 July 2024.

How much traffic does T-331 over Pa Tpk (I-276) carry?

About 200 vehicles per day (1992 count), of which roughly 2% are trucks.

How long is T-331 over Pa Tpk (I-276)?

The structure is 111 ft (33.8 m) long with a longest span of 109 ft (33.2 m) and a deck 32 ft wide.

Who owns T-331 over Pa Tpk (I-276)?

It is owned by the State Toll Authority.