T-401 Nipple Road over Mahantango Creek
PoorJuniata County, Pennsylvania · 0.1 MI East of SR 2023 · Structure no. 000000000020345
- Built
- 1989
- 36 years old
- Condition
- Poor
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 65 ft
- 1 main span
- Daily traffic
- 200
- 2011 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
T-401 Nipple Road over Mahantango Creek is a steel stringer/multi-beam or girder carrying T-401 Nipple Road over Mahantango Creek in Juniata County, Pennsylvania. It was built in 1989, so it is 36 years old, younger 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 200 vehicles a day, roughly 3% of them trucks, projected to reach 280 by 2031. The structure is 65 ft (19.8 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was T-401 Nipple Road over Mahantango Creek built?
It was built in 1989, making it 36 years old in 2025.
What condition is T-401 Nipple Road over Mahantango 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 October 2023.
How much traffic does T-401 Nipple Road over Mahantango Creek carry?
About 200 vehicles per day (2011 count), of which roughly 3% are trucks.
How long is T-401 Nipple Road over Mahantango Creek?
The structure is 65 ft (19.8 m) long with a longest span of 62 ft (18.9 m) and a deck 16 ft wide.
Who owns T-401 Nipple Road over Mahantango Creek?
It is owned by the Town or Township Highway Agency.