1826479dwg02of05_STRUC1.pdf

This file is a comprehensive set of structural design drawings for the USCG Offshore Patrol Cutters (OPC) Homeport Pier at Naval Station Newport, Newport, Rhode Island. The drawings cover the complete structural design including demolition, pile foundations, concrete framing, decking, and associated components for a 1,000-foot-long pier measuring 80 feet wide.

The structural scope encompasses demolition of the existing Pier 1 and associated bulkheads (S45N and S45S), installation of 36-inch diameter concrete-filled steel pipe piles as primary support with 10-foot HDPE pile sleeves, concrete pile caps ranging from 5 to 5.6 feet wide, cast-in-place and precast concrete deck systems, utility trenches, 62 bollards with 125-ton capacity each, two high-mast lighting poles, and 24 floating foam-filled fenders supported by fender piles. The design includes comprehensive marine environmental protections, particularly for marine mammal protection during pile driving and extraction activities with specified shutdown zones, soft-start procedures, and Protected Species Observer requirements. Critical structural specifications require 5,000 PSI marine concrete, galvanized reinforcing steel per ASTM A767 Grade 60, and ASTM A992 structural steel with hot-dip galvanization. The design accommodates dynamic pile analysis (PDA) testing to verify capacities, with anticipated obstruction mitigation measures for approximately 52 piles. Deck drainage incorporates 0.5% minimum slope to eight-inch diameter sleeved drains at elevation 12.9 feet, with drainage detailed across multiple sheets showing comprehensive site-specific configurations for effective water management throughout the 1,000-foot structure.