T-434 over Mosquito Creek
PoorLycoming County, Pennsylvania · 1.3 Mi. S of Duboistown · Structure no. 000000000025058
- Built
- 1926
- 99 years old, rebuilt 1945
- Condition
- Poor
- inspected September 2023
- Type
- Slab
- Concrete Continuous
- Length
- 51 ft
- 2 main spans
- Daily traffic
- 250
- 2023 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
T-434 over Mosquito Creek is a concrete continuous slab carrying T-434 over Mosquito Creek in Lycoming County, Pennsylvania. It was built in 1926 and reconstructed in 1945, so it is 99 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 250 vehicles a day, roughly 1% of them trucks, projected to reach 390 by 2045. The structure is 51 ft (15.5 m) long and 18 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was T-434 over Mosquito Creek built?
It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1945.
What condition is T-434 over Mosquito Creek 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 September 2023.
How much traffic does T-434 over Mosquito Creek carry?
About 250 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is T-434 over Mosquito Creek?
The structure is 51 ft (15.5 m) long with a longest span of 23 ft (7 m) and a deck 18 ft wide.
Who owns T-434 over Mosquito Creek?
It is owned by the Town or Township Highway Agency.