structural and marine engineering, including inspections, rehabilitation design and special designs, value engineering, underwater inspections by licensed professional engineers/divers, including scour analysis, non-destructive testing, bridge deck analysis, design/build capabilities for marine and other structures, complete diving services by commercial divers, fathometric surveys, prefabricated custom bridges, design/build for small to medium structures, construction management

w.j. castle, p.e. & associates, p.c. (castle) was established in 1983. castle is a marine/structural engineering firm, which specializes in underwater inspections and has built a reputation of excellence in structural and marine engineering. castle is involved in a diversified range of services from underwater inspections, evaluation, design/build to rehabilitative designs.