Merriman RD over Big Sewickley Creek
Fair Condition110 years old408 vehicles/day
Location
| State | Pennsylvania |
| County | Allegheny |
| Location | Sb08 Big Sewickley Cr#8 |
| Carries | Merriman RD |
| Crosses | Big Sewickley Creek |
| Coordinates | 40.59135, -80.20098 |
Condition Ratings
| Overall Condition | Fair |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Concrete |
| Design | Arch - Deck |
| Total Length | 49.9 ft (15.2 m) |
| Max Span | 49.9 ft (15.2 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 111.0 sq m |
| Main Spans | 1 |
| Year Built | 1916 |
Traffic
| Avg Daily Traffic | 408 (2023) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000002724 |