Tracy Gateway Storm Drainage Master Plan, San Joaquin...
Transcript of Tracy Gateway Storm Drainage Master Plan, San Joaquin...
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Stormwater Management
Tracy Gateway Storm Drainage Master Plan, San Joaquin County, California
Balance Hydrologics used the Mike-URBAN time-variant hydraulic modeling program to represent
proposed stormwater conveyance and storage elements in a large residential, commercial, and indus-
trial development near the city of Tracy, in San Joaquin County. Individual storms and a series of
closely-timed storms were routed through the proposed stormwater management system, which con-
sisted of more than 25 detention basins and reservoirs, more than ten branches of buried pipes and
culverts, multiple control structures and a pump station. Model results were used to define the de-
sign modifications needed to contain storm flows within the system and limit peak discharge to the
receiving waters, a canal. To optimize design and operation of the system under multiple-storm con-
ditions required running the model for a wide range of designs and conditions. At completion, Bal-
ance provided the client with the optimal sizes for the stormwater basins, reservoirs, conduits, and
control structures and the predicted discharges from the site under multiple storm event scenarios.