T-409 Mifflin BR#2 over Ten Mile Run
PoorColumbia County, Pennsylvania · 2.4 MI S. of Mifflinville · Structure no. 000000000012826
- Built
- 1936
- 89 years old
- Condition
- Poor
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 28 ft
- 1 main span
- Daily traffic
- 100
- 2023 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
T-409 Mifflin BR#2 over Ten Mile Run is a steel stringer/multi-beam or girder carrying T-409 Mifflin BR#2 over Ten Mile Run in Columbia County, Pennsylvania. It was built in 1936, so it is 89 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 100 vehicles a day, roughly 2% of them trucks, projected to reach 155 by 2045. The structure is 28 ft (8.5 m) long and 20 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was T-409 Mifflin BR#2 over Ten Mile Run built?
It was built in 1936, making it 89 years old in 2025.
What condition is T-409 Mifflin BR#2 over Ten Mile Run 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 April 2023.
How much traffic does T-409 Mifflin BR#2 over Ten Mile Run carry?
About 100 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is T-409 Mifflin BR#2 over Ten Mile Run?
The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 20 ft wide.
Who owns T-409 Mifflin BR#2 over Ten Mile Run?
It is owned by the Town or Township Highway Agency.