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Design and Installation of ITRC Flap Gates
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Highlights
The ITRC Flap Gate is a simple, inexpensive hydraulic gate for automatic upstream water level control. It operates steadily at varying flow conditions and maintains the water level elevation typically within ±0.5 inches of design, allowing maximum flow through the canal with little deviation. Since it contains fewer mechanical parts than most other gates, the ITRC Flap Gate can be completed in as little as one week from design to installation, and is often installed in less than two hours while water is flowing. The ITRC Flap Gate requires no electricity and has been installed at over 200 locations in California.
ITRC began to investigate early designs of Flap Gates in 1992. Originating in Holland in the 1940s, the Flap Gate is a simple, inexpensive hydraulic gate for automatic upstream water level control. This report includes information on design (the Microsoft Excel files available for download below), installation, maintenance, water conservation and efficiency, cost, use, and benefits.
Please select a design option below to access the Excel program files and plans in pdf form.
Typically used on gates that are wide (36" to 72") and relatively shallow (12" to 24"). Currently the most common option. Updated 7/25/08
Typically used when location space for the gate is minimal, the gate is narrow (24" to 48") and somewhat deep (18" to 36"). Updated 7/27/08