US Bridges

North Wales Road over Wissahickon Creek

Good

Montgomery County, Pennsylvania · Upper Gwynedd 22H6/3144D9 · Structure no. 000000000027600

Built
1989
36 years old
Condition
Good
inspected January 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
57 ft
1 main span
Daily traffic
7,591
2023 count
Owner
State
State Highway Agency

About this bridge

North Wales Road over Wissahickon Creek is a prestressed concrete box beam or girders - multiple carrying North Wales Road over Wissahickon Creek in Montgomery County, Pennsylvania. It was built in 1989, so it is 36 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 7,591 vehicles a day, roughly 5% of them trucks, projected to reach 11,288 by 2032. The structure is 57 ft (17.4 m) long and 43 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNorth Wales Road
CrossesWissahickon Creek
LocationUpper Gwynedd 22H6/3144D9
RouteState Highway 0
Coordinates40.19894, -75.28895
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating102 US tons
Inventory rating55 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length57 ft (17.4 m)
Longest span55 ft (16.8 m)
Deck width43 ft (13.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,591 (2023)
Projected traffic11,288 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was North Wales Road over Wissahickon Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is North Wales Road over Wissahickon Creek 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 January 2023.

How much traffic does North Wales Road over Wissahickon Creek carry?

About 7,591 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is North Wales Road over Wissahickon Creek?

The structure is 57 ft (17.4 m) long with a longest span of 55 ft (16.8 m) and a deck 43 ft wide.

Who owns North Wales Road over Wissahickon Creek?

It is owned by the State Highway Agency.