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Stop Log Gates

Stop-logs are modular water control systems that control water levels by adding or removing stop-logs in an opening. Each log is horizontally placed into a channel between two side structures.

Stoplogs temporarily block flow through a spillway during routine maintenance or for longer periods of time for example during flood condition, they act as flood barriers against rising water levels.

Stoplogs regulate / block the up stream water level between a minimum level and a maximum level.

Stop logs are used for water level control in open channels.

Logs are blocking gates inserted in grooves placed on a channel wall. Typical nominal height of a stop log is in specific increments, i.e., the log can be 6, 12, 18 inches wide and various lengths.

HDPE stop logs have rubber type seals on each end to seal at the wall and across the bottom of the log to seal at the sill or against the next log. HDPE stop logs are equipped with lifting lugs for use with a lifting beam. The blocking log gates are a modular log handling device for underwater retrieval of the log. 


  • Open channel service
  • Water level regulation
  • Equipment isolation
  • Flood barriers and other functions.


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Stop log gates

Stop-Log cut sheet:

Introduction To HDPE Penstock Gate Valves

Available for all opening sizes: contact Westatlantic



Contact us: Westatlantic Tech Corp., 902 455 4455

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