T-353 Bottom RD over Mill Run
PoorClosed to trafficJefferson County, Pennsylvania · 1.2 Miles SE of SR 4001 · Structure no. 000000000019826
- Built
- 1909
- 116 years old, rebuilt 1995
- Condition
- Poor
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 29 ft
- 1 main span
- Daily traffic
- 50
- 2022 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
T-353 Bottom RD over Mill Run is a steel stringer/multi-beam or girder carrying T-353 Bottom RD over Mill Run in Jefferson County, Pennsylvania. It was built in 1909 and reconstructed in 1995, so it is 116 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 2 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. Its operating status is: closed to all traffic.
It carries about 50 vehicles a day, roughly 5% of them trucks, projected to reach 70 by 2044. The structure is 29 ft (8.8 m) long and 17 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| Superstructure | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
| 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-353 Bottom RD over Mill Run built?
It was built in 1909, making it 116 years old in 2025. It was reconstructed in 1995.
What condition is T-353 Bottom RD over Mill 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 July 2023.
How much traffic does T-353 Bottom RD over Mill Run carry?
About 50 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is T-353 Bottom RD over Mill Run?
The structure is 29 ft (8.8 m) long with a longest span of 25 ft (7.6 m) and a deck 17 ft wide.
Who owns T-353 Bottom RD over Mill Run?
It is owned by the Town or Township Highway Agency.