Located in Virginia, the Robert C.
Bryd Lock and Dam Project consisted of installing eight skirted
cylindrically shaped roller-gates that were fabricated in Gulfport,
Mississippi. They measured 22 feet in diameter and 120 feet long.
They were fabricated from rolled steel plate and were fitted with
triangular skirt designed to shut off water flow. The protective
coating for the surfaces that contacted the upstream water was a
combination of Metalizing, a flame applied Zinc/Aluminum wire,
covered by a three coat alternating colored Vinyl Enamel system. The
surfaces that were on the downstream side were coated with one coat
of Vinyl Zinc followed by three coats of alternating colored Vinyl
Enamel. Since the gates were fabricated in Mississippi, the
installation in Virginia, the timing for transport had to be
precisely correlated with the removal of the existing gates. The
established dates in conjunction with the rigorous safety, quality
and completion requirements set forth by the Corp of Engineers
resulted in a high pressure, high stakes project with unique
challenges.