US Bridges

Germantown Avenue over Wissahickon Creek

Good

Philadelphia County, Pennsylvania · S.Northwestern AVE.16G01 · Structure no. 000000000039270

Built
2003
22 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
316 ft
3 main spans
Daily traffic
9,500
1980 count
Owner
City
City or Municipal Highway Agency

About this bridge

Germantown Avenue over Wissahickon Creek is a steel continuous stringer/multi-beam or girder carrying Germantown Avenue over Wissahickon Creek in Philadelphia County, Pennsylvania. It was built in 2003, so it is 22 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 9,500 vehicles a day, projected to reach 9,500 by 1980. The structure is 316 ft (96.3 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesGermantown Avenue
CrossesWissahickon Creek
LocationS.Northwestern AVE.16G01
RouteU.S. Route 422
Coordinates40.08438, -75.22774
Functional classUrban Other Principal 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 inspectionOctober 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 alignment6: Equal to present minimum criteria
Operating rating78 US tons
Inventory rating47 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length316 ft (96.3 m)
Longest span118 ft (36 m)
Deck width48 ft (14.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,500 (1980)
Projected traffic9,500 by 1980
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Germantown Avenue over Wissahickon Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is Germantown Avenue 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 October 2023.

How much traffic does Germantown Avenue over Wissahickon Creek carry?

About 9,500 vehicles per day (1980 count).

How long is Germantown Avenue over Wissahickon Creek?

The structure is 316 ft (96.3 m) long with a longest span of 118 ft (36 m) and a deck 48 ft wide.

Who owns Germantown Avenue over Wissahickon Creek?

It is owned by the City or Municipal Highway Agency.