Engineering Updates – July 29, 2020

PROJECTS UNDER CONSTRUCTION

Bullhead Slough Rehabilitation

The District is dredging silt out of Bullhead Slough and rehabilitating the side slopes which have eroded over time.  Project includes installing ShoreSox product at the water’s edge to stabilize and prevent future erosion.  Project includes eastern and middle sections of Bullhead.  Rehabilitation of the western section of Bullhead will be performed in the future.

Notice to Proceed has been issued for July 6, 2020 and Contractor will mobilize shortly thereafter.  Contractor has begun stabilization of the side slopes and will begin draining and dredging Bullhead in August.

Residents are reminded that this will be an active heavy construction site.  DO NOT enter construction site at any time.  Unauthorized access to the construction area places the unauthorized visitor and construction crews at risk.

Jones Creek Slope Rehabilitation

Construction has commenced on the Jones Creek Slope Rehabilitation project, which consists of installation of gabion basket erosion protection system along the west side of Pecan Lakes, adjacent to Jones Creek.  Project is expected be under construction through Summer 2020.

Construction is substantially complete!  Contractor will continue to clean up the project site.

The Contractor is allowed to work from 7 a.m. until sunset for seven days a week. At this time, the Contractor does expect to work seven days a week in order to achieve the project delivery schedule.

Residents are reminded that this is an active heavy construction site.  DO NOT enter construction site at any time.  There has been unauthorized access to the construction area which places the unauthorized visitor and construction crews at risk.

Improvements to Raw Water Tanks at Surface Water Treatment Plant

The District is installing a floating mixer in each of the raw water storage tanks at the Surface Water Treatment Plant located off Skinner Road.  The mixers create constant movement in the raw water to limit sediment from settling to the bottom of the tank. In addition, stairs and walkways are being installed as part of this project to improve operator access to the tanks.

Project is under construction.  Sediment in the west tank will be removed in August and catwalk assembly will begin once that is complete.

South Pump Station Automation

The District is updating the electrical system to allow for the pumps at the south pump station to automatically turn on or off based on the water level in the main channel.

Notice to Proceed has been issued and Construction is nearly complete which will allow the Contractor to control the pump station remotely in times of inclement weather.

Electrical Improvements and Generator at Water Plant No. 2

The District is updating the electrical system including installation of a new generator at water plant no. 2 (located near the elevated storage tank).

Notice to Proceed has been issued.  Construction has commented.  Water Plant No. 2 is currently non-operational due to construction activity; however, the plant is expected to placed back into service in early August 2020.

Improvements at Water Plant No. 3

The District is modifying the pumps and piping system at water plant no. 3 (located at the end of Willow Bend Dr.).

Notice to Proceed has been issued.  Contractor is ordering the necessary components and construction is expected to begin in Summer 2020.

North Pump Station Improvements

The District is improving the access to the north pump station by adjusting the headwall and grading modifications.  Project also includes automation of the pumps based on level of water in Bullhead Slough.

Construction activity onsite has commenced with the contractor removing the existing concrete slope paving.