T-603 Saint Joe RD over Bonnie Brook
PoorPosted for loadButler County, Pennsylvania · 1/2 MI from Int W/T621 · Structure no. 000000000008270
- Built
- 1915
- 110 years old
- Condition
- Poor
- inspected August 2024
- Type
- Other
- Concrete
- Length
- 28 ft
- 1 main span
- Daily traffic
- 100
- 2016 count
- Owner
- County
- County Highway Agency
About this bridge
T-603 Saint Joe RD over Bonnie Brook is a concrete other carrying T-603 Saint Joe RD over Bonnie Brook in Butler County, Pennsylvania. It was built in 1915, so it is 110 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 3 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: posted for load restriction.
It carries about 100 vehicles a day, roughly 9% of them trucks, projected to reach 120 by 2036. The structure is 28 ft (8.5 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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-603 Saint Joe RD over Bonnie Brook built?
It was built in 1915, making it 110 years old in 2025.
What condition is T-603 Saint Joe RD over Bonnie Brook 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 August 2024.
How much traffic does T-603 Saint Joe RD over Bonnie Brook carry?
About 100 vehicles per day (2016 count), of which roughly 9% are trucks.
How long is T-603 Saint Joe RD over Bonnie Brook?
The structure is 28 ft (8.5 m) long with a longest span of 25 ft (7.6 m) and a deck 17 ft wide.
Who owns T-603 Saint Joe RD over Bonnie Brook?
It is owned by the County Highway Agency.