US Bridges

Pottstown Expway. over Mingo Creek

Fair

Montgomery County, Pennsylvania · E. Royersf 3140G10 · Structure no. 000000000027427

Built
1976
49 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
45 ft
2 main spans
Daily traffic
67,865
2024 count
Owner
State
State Highway Agency

About this bridge

Pottstown Expway. over Mingo Creek is a concrete culvert carrying Pottstown Expway. over Mingo Creek in Montgomery County, Pennsylvania. It was built in 1976, so it is 49 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 5 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 67,865 vehicles a day, roughly 5% of them trucks, projected to reach 75,615 by 2032. The structure is 45 ft (13.7 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesPottstown Expway.
CrossesMingo Creek
LocationE. Royersf 3140G10
RouteU.S. Route 422
CountyMontgomery County
StatePennsylvania
Coordinates40.18865, -75.51926
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic67,865 (2024)
Projected traffic75,615 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes

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 Pottstown Expway. over Mingo Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is Pottstown Expway. over Mingo Creek 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 July 2023.

How much traffic does Pottstown Expway. over Mingo Creek carry?

About 67,865 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Pottstown Expway. over Mingo Creek?

The structure is 45 ft (13.7 m) long with a longest span of 22 ft (6.7 m).

Who owns Pottstown Expway. over Mingo Creek?

It is owned by the State Highway Agency.