The New York City Department of Design and Construction (NYCDDC) specified the use of micropiles to support the ductile iron and ESVP gravity sewers in the narrow streets of the Warnerville and Meadowmere communities in the Rosedale section of the Borough of Queens, City of New York. They were specified due to the limited street widths and utility restrictions on Broad St and Bayview Ave in Warnerville and 1st St, 2nd St, 3rd St, and Meyer Ave in Meadowmere. Maintaining daily access for the residents, businesses and emergency services on either side of the narrow (15 to 20 ft) streets was required.
- Helical Pile Type: SS175
- # of Helical Piles: 603
- Location: Queens, NY
- Installation Depth: 35-50 feet
- Equipment Used: 2 caterpillar 314’s and 2 12K Driveheads
- Challenge/Unique Aspect: Helicals were the premier choice since driven piles would have damaged the road and the buildings nearby, working in accordance with traffic and DOT regulations made the construction go smoothly since helical piles were used, mobilization’s and demobilizations were much quicker with Helicals.
- General Contractor: E.E. Cruz Inc. & RCC Pile & Foundation Inc.