US Bridges

Pa Tpk (ramp I) over Pa Tpk (I-276)

Fair

Montgomery County, Pennsylvania · Mid County Interchange · Structure no. 000000000028172

Built
1992
33 years old
Condition
Fair
inspected August 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
491 ft
4 main spans
Daily traffic
16,340
2008 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (ramp I) over Pa Tpk (I-276) is a steel continuous stringer/multi-beam or girder carrying Pa Tpk (ramp I) over Pa Tpk (I-276) in Montgomery County, Pennsylvania. It was built in 1992, so it is 33 years old, younger 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 16,340 vehicles a day, roughly 14% of them trucks, projected to reach 25,100 by 2030. The structure is 491 ft (149.7 m) long and 51 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesPa Tpk (ramp I)
CrossesPa Tpk (I-276)
LocationMid County Interchange
CountyMontgomery County
StatePennsylvania
Coordinates40.11302, -75.27733
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment7: Better than present minimum criteria
Operating rating86 US tons
Inventory rating51 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length491 ft (149.7 m)
Longest span145 ft (44.2 m)
Deck width51 ft (15.4 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deck15 ft (4.6 m)

Traffic and service

Average daily traffic16,340 (2008)
Projected traffic25,100 by 2030
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

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

It was built in 1992, making it 33 years old in 2025.

What condition is Pa Tpk (ramp I) over Pa Tpk (I-276) 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 2022.

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

About 16,340 vehicles per day (2008 count), of which roughly 14% are trucks.

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

The structure is 491 ft (149.7 m) long with a longest span of 145 ft (44.2 m) and a deck 51 ft wide.

Who owns Pa Tpk (ramp I) over Pa Tpk (I-276)?

It is owned by the State Toll Authority.