hillcrest subdivision

Hillcrest SubdivisionHillcrest Subdivision

is located on loop 1604, 1 mile North of US 90.

IntroductionSecond Phase 932 feet of new storm drain1,936 feet of new sanitary sewerapproximately 3,000 feet of new water main3,016 feet of new street

New StreetsRustic SpokeBurning LampBisley Pass.

Water Line DetailsThe expected demand is 34200 gpdTotal of 114 home would be suppliedThe Water line ties into an existing 8” water

lineThere is approximately 3016 linear feet of

this 8” PVC5 fire hydrants spaced at a max distance of

feet

STORM Water Design

Throughout the project 3 types of drainage systems are recommended to be used.

Trapezoidal ChannelRectangular ChannelConcrete PipeDesigned for 25 year stormTotal Area = 23.4 acresQ = 84.9 cfsI = 5.5 in/hrC = 0.67

Trapezoidal ChannelLies on the North edge of the subdivision Runs from East to WestChannel Drains 10.49 Acres Q = 38 cfsDownstream sectionSlope = 0.0127

Trapezoidal ContinuedUpstream SectionSlope = 0.0567

Rectangular ChannelUpstream Cross SectionSlope = 0.0461Q = 81.8 cfsFB = 6”

Rectangular ContinuedDownstream Cross SectionQ= 81.8Slope = 0.005Both sections designed with h= 2’- 1”FB = 15”

Underground DrainageConsists of gutters Junction Boxes (4x4 and 5x5)Reinforced Concrete Pipe (RCP) Designed to intercept 8.13 cfsEffeciency = 65.5%By pass flow = 4.27 cfs

Sanitary SewerPlan view Total flow = 34,260

gpd

Sanitary Continued

Cost Estimate

ScheduleJune 3rd – September 13th

Questions ?