US Bridges

Ridge Road over Pa Tpk (I-476)

Good

Montgomery County, Pennsylvania · 3.25 Mi. W. PA-309 2918H5 · Structure no. 000000000048540

Built
2014
11 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
234 ft
2 main spans
Daily traffic
7,550
2024 count
Owner
State
State Highway Agency

About this bridge

Ridge Road over Pa Tpk (I-476) is a prestressed concrete continuous stringer/multi-beam or girder carrying Ridge Road over Pa Tpk (I-476) in Montgomery County, Pennsylvania. It was built in 2014, so it is 11 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,550 vehicles a day, roughly 6% of them trucks, projected to reach 6,896 by 2030. The structure is 234 ft (71.3 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRidge Road
CrossesPa Tpk (I-476)
Location3.25 Mi. W. PA-309 2918H5
RouteState Highway 563
CountyMontgomery County
StatePennsylvania
Coordinates40.3494, -75.39012
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating40.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length234 ft (71.3 m)
Longest span120 ft (36.6 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,550 (2024)
Projected traffic6,896 by 2030
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ridge Road over Pa Tpk (I-476) built?

It was built in 2014, making it 11 years old in 2025.

What condition is Ridge Road over Pa Tpk (I-476) in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Ridge Road over Pa Tpk (I-476) carry?

About 7,550 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Ridge Road over Pa Tpk (I-476)?

The structure is 234 ft (71.3 m) long with a longest span of 120 ft (36.6 m) and a deck 43 ft wide.

Who owns Ridge Road over Pa Tpk (I-476)?

It is owned by the State Highway Agency.