Maple Avenue over N Charles Street
PoorAllegheny County, Pennsylvania · 051 Maple Ave Bridge · Structure no. 000000000002422
- Built
- 1929
- 96 years old, rebuilt 1953
- Condition
- Poor
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 42 ft
- 1 main span
- Daily traffic
- 400
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Maple Avenue over N Charles Street is a steel stringer/multi-beam or girder carrying Maple Avenue over N Charles Street in Allegheny County, Pennsylvania. It was built in 1929 and reconstructed in 1953, so it is 96 years old, older than the Pennsylvania average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 400 vehicles a day, roughly 5% of them trucks, projected to reach 440 by 2042. The structure is 42 ft (12.8 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Maple Avenue over N Charles Street built?
It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1953.
What condition is Maple Avenue over N Charles Street in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.
How much traffic does Maple Avenue over N Charles Street carry?
About 400 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is Maple Avenue over N Charles Street?
The structure is 42 ft (12.8 m) long with a longest span of 38 ft (11.6 m) and a deck 40 ft wide.
Who owns Maple Avenue over N Charles Street?
It is owned by the City or Municipal Highway Agency.