Stratus provided engineering, construction administration, and start-up assistance services for a new water reservoir and redesign of the existing reservoirs servicing the Scott Candler Filter Plant. The $45 million project increased the storage capacity of raw water from 200 million gallons to approximately 1 billion gallons. In the process, Stratus designed approximately 10,000 linear feet of raw water piping ranging from 48 to 108 inches in diameter. Stratus’ services included a study and report phase, engineering design, preparation of contract drawings, and construction administration including onsite construction oversight for the following scope:
- Approximately 10,000 lf of steel and pre-stressed concrete raw water piping sized 48 to 108 inches in diameter
- Three 100-mgd raw water pumping stations utilizing 500-hp submersible pumps and mechanical bar screens
- Effluent flow towers with multi-elevation automated raw water intake gates
- Raw water flow splitter structure automated to measure, meter, and distribute pumped reservoir influent into each of three reservoirs
- Reservoir effluent junction box structure for Reservoirs 1, 2, and 3 including automated sluice gates and three 54-inch Venturi flow controllers to proportion and mix effluent from the three reservoirs at the filter plant head
- Reservoir overflow towers
- Reservoir 1 and 2 central overflow structure
- Interim connection piping and headers between new reservoir and existing filter plant
- 200-mgd reservoir overflow flume
Stratus also performed hydraulic analyses of existing and proposed systems to assist the County in determining future piping requirements; evaluated the raw water river intake structure pumps to determine the effects of raising the reservoir levels; and developed new head-capacity curves.
