Almeda 20’ Diameter Bypass Chamber

Project Location
Houston, Texas
Construction cost
Construction Start/End



20’ x 45’ Bypass Chamber (New construction)

Depth of structure:
Health and safety:
During construction constant monitoring of upstream flow and standard permit required confined space protocol was used. Extra caution was during weather events. Forced air was used for ventilation and odor control.
Has any re-inspection been performed? What was the condition of the structure?
Yes, 2014 the chamber was inspected and found the Danby liner to be in excellent condition.


Danby PL3E (1”) flat panels was used with a forming system while pouring the concrete wall sections in 10 vertical foot heights.

Method of flow bypass or diversion, if used:
The WWTP had to be by-passed in order to accomplish the emergency repairs and rehab work. Boyer installed a 45 ft deep bypass chamber with cofferdam, a Boyer patented system that would allow 100% by-passing during dry weather events. The bypass chamber was lined using Danby PL3E panels as a corrosion prevention to the new construction. This bypass chamber has been and will be used in the future for high water event, cleaning and inspection.


Problems encountered during construction:
Problems encountered after construction: