US Bridges

Plymouth Road over Wissahickon Creek

Good

Montgomery County, Pennsylvania · 0.9 MI SE US-202 3256-K1 · Structure no. 000000000068833

Built
2022
3 years old
Condition
Good
inspected November 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
6,063
2019 count
Owner
County
County Highway Agency

About this bridge

Plymouth Road over Wissahickon Creek is a prestressed concrete box beam or girders - multiple carrying Plymouth Road over Wissahickon Creek in Montgomery County, Pennsylvania. It was built in 2022, so it is 3 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,063 vehicles a day, projected to reach 6,860 by 2040. The structure is 73 ft (22.3 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesPlymouth Road
CrossesWissahickon Creek
Location0.9 MI SE US-202 3256-K1
RouteCounty Highway 0
CountyMontgomery County
StatePennsylvania
Coordinates40.18645, -75.25502
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59 US tons
Inventory rating45.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length73 ft (22.3 m)
Longest span72 ft (21.9 m)
Deck width36 ft (10.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,063 (2019)
Projected traffic6,860 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Plymouth Road over Wissahickon Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is Plymouth 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 November 2022.

How much traffic does Plymouth Road over Wissahickon Creek carry?

About 6,063 vehicles per day (2019 count).

How long is Plymouth Road over Wissahickon Creek?

The structure is 73 ft (22.3 m) long with a longest span of 72 ft (21.9 m) and a deck 36 ft wide.

Who owns Plymouth Road over Wissahickon Creek?

It is owned by the County Highway Agency.