Hot Water Deicer with Trailer

Gavins Point Spillway Gate De-Icing Trailer
Gavins Point has identified that the need for a portable, self-contained, easily operable and
quick response trailer would be beneficial to the project not only from a maintenance
perspective but also with dam safety in mind. We have test operated a few different methods
of removing ice from the frozen spillway gates and have found that spraying warm water at
higher pressure is the most effective way to quickly remove the ice that is built up between the
gate and the side wall that is holding the gate in place and making it inoperable.
The trailer being requested is a self-contained, diesel fired heat source and electrical generator
unit that can pump freezing lake water into the trailer, heat the water instantly and pump the
heated water down to the nozzle operator to spray a heavy stream of warm water at high
pressure that will melt/cut through the ice that is holding the spillway gate in place. This
method is mobile, easy to use, continuous water flow, and most importantly quick response.
(See March 14, 2019). We have found that with high pressure, the time it takes to melt/cut the
ice is reduced greatly and also that the operator can remove the ice from 2 gates while being
positioned at a single spillway nose pier, thus making the deicing process quicker and easier.
Also, with the on board diesel generator, the trailer can be used as an emergency 480v 3-phase
electrical source to back feed essential equipment in the event of a power failure. (Spillway
Gate Hoist, Admin, Campgrounds, Sewage Lift stations etc.)

Hot Water Deicer w ith Trailer, Gavins Point Dam Amendment 1 
The solicitation is being amended to reflect changes in to the tank size and response date for quotes. Tank size under Highway Trailer of
the solicitation should read "Between 100 and 115 gallon, double walled, carbon steel fuel tank w ith vented cap for fueling both w ater
heater and generator". The solicitation response due date has been extended until 21 July 2020 at 2pm Central Time.