A pedestrian bridge was constructed to connect a parking lot and a piece of land between a small tributary on the Cooper river. The abutments required a deep foundation due to weak soils. Driven piles were ruled out because the pile driving equipment could not cross the waterway, even at low tide. Helical piles, and the small low-impact equipment used to install them, provided the ideal solution.
- Helical Pile Type: RS2875.203
- # of Helical Piles: 16
- Location: Pennsauken, NJ
- Installation Depth: 55′
- Ultimate Pile Capacity: 65 Kips
- Equipment Used: Kobelco Excavator, Pengo 12K Drive Head
- Challenge/Unique Aspect: Environmental sensitivity and mobilization drove the decesion to use helicals. Small low-impact installation equipment was used to track through the water at low tide. This avoided construction delays due bogged down machinery while avoiding disturbance to the surrounding area.