swmm update - onondaga county save the rain

SWMM UpdateSWMM UpdateOnondaga CountySave the Rain ProgramOnondaga CountySave the Rain ProgramSave the Rain ProgramJoanne M. Mahoney, County ExecutiveJoanne M. Mahoney, County ExecutiveSave the Rain ProgramJoanne M. Mahoney, County ExecutiveJoanne M. Mahoney, County Executive

ACJ Quarterly MeetingFebruary 26, 2013

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OutlineOutline

1.1. Model DevelopmentModel Developmentpp

2.2. Calibration PlanCalibration Plan

3.3. Next StepsNext Steps3.3. Next Steps Next Steps

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Outline

11 M d l D l tM d l D l t1.1. Model DevelopmentModel Development

▫▫ Model NetworkModel Network

▫▫ SubcatchmentSubcatchment ChangesChanges

▫▫ Boundary Condition ChangesBoundary Condition Changes

▫▫ EBSS OperationEBSS Operation


3.3. Next StepsNext Steps

4Original Model Network - 2011

1.1. Model DevelopmentModel Development

• 2 separate models with free outfalls

• HBIS: 3 pump stations (PS)

Onondaga Lake

• MIS: 1 PS, 1 RTF and EBSS gates

• Not geo‐referenced• Used SWMM default• Used SWMM default infiltration parameters

• Imperviousness obtained by visual interpretation of aerial h

HBISHBIS

photos

• Simplified wet weather operation controls

• Model network vs GIS trunkMISMIS Model network vs GIS trunk sewer alignments (shown as background)

5


• One combined model with•Updated Model Network - 2012 • One combined model with refined boundary conditions (Metro Headworks)

• 1,807 vs. 503 nodes; 1,909 vs.

Onondaga Lake

p

577 conduits; and 456 vs. 94 subcatchments

• HBIS: 3 pump stations (PS)

• MIS: 4 PS 2 RTFs and modified• MIS: 4 PS, 2 RTFs and modified EBSS gates

• Geo‐referenced• Used USDA soil survey data• Imperviousness based on Syracuse aerial survey GIS land cover and supplemented with Landsat imagery

HBISHBIS

Landsat imagery

• Improved wet weather operation controls

• Calibrated Creek/Brook

MISMIS

tailwater conditions based on USGS stream gauges

6Subcatchment Delineation


• LIDAR DEM (Light Detection

Onondaga Lake(Light Detection

And RangingDigital Elevation Model)Model) provides base for ArcHydrodelineation

7Subcatchment Delineation


• LIDAR DEM id b O d provides base

for ArcHydrodelineation

Onondaga Lake

• Incorporate sewers into DEMDEM

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Subcatchment Delineation

• LIDAR DEM id b f

Onondaga Lake

provides base for ArcHydrodelineation

i• Burn sewers into DEM

• ArcHydroSubcatchmentDelineation

• Manual modifications based on sewer network and aerial imagery

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Subcatchment - Imperviousnessp

• Detailed d li tidelineation

• Landsat fl i ireflectivity

classification

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Subcatchment - Infiltration

• USDA WSS ( b il

Onondaga Lake(Web Soil

Survey) data• Subcatchment

Lake

boundaries intersected by soil datasoil data

• Infiltration parameters found by area‐weighted averageaverage

11Subcatchment - Infiltration


• Green‐AmptInfiltrationInfiltrationParameters

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Subcatchment - Flow Routing

Manhole to

g

impervious Manhole to combined

sewerpervious

impervious

ML_Impcov_v2Feature

DrivewayFlat RooftopNon-Flat RooftopParking AreaRoadwayRoadway MedianSidewalk

13Receiving Water Boundary Conditions


g y

• Original model: no boundary condition• Updated model:• Updated model:▫ Water surface and bank elevation obtained from LIDAR DEM

▫ River depth based on USGS streamSouth ▫ River depth based on USGS stream gauge depth

of West Seneca Turnpike

Lake

14Receiving Water Boundary Conditions• Harbor Brook Profile

g y

Velasko RoadFlood Control Gate

Covered Culvert

Open Channel

Lake

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METRO Boundary ConditionsOriginal Model: • Simplified METRO boundary conditions

Liverpool PSLiverpool PS

y

•MIS and HBIS were modeled as free outfalls

Updated Model:

LeyLey Creek PSCreek PS

Updated Model: •Added Force Main flows from Ley Creek PS, Westside PS and Liverpool PS

Onondaga Lake

•Refined Headworks setup•Added hydraulic structures• Incorporated wet weather

Westside PSWestside PSIncorporated wet weather operation as real time controls

METROMETRO

16Force Main Flow Calibration-Liverpool PS


p

17Force Main Flow Calibration-Ley Creek PS


18Force Main Flow Calibration-Westside PS


19Wet Weather Operations-EBSS1.1. Model DevelopmentModel Development

Original Model:Original Model: t #1 ith i lifi d R l Ti C t l (RTC) lt #1 ith i lifi d R l Ti C t l (RTC) l

080D Weir 401.04 ft

080E Weir

080F Weir 409.07 ft

080G Weir 407.2 ft

080H Weir 409.5 ft

Original Model: Original Model: no gate #1 with simplified Real Time Control (RTC) rulesno gate #1 with simplified Real Time Control (RTC) rulesUpdated Model: Updated Model: added gate #1 and RTC rules based on wet weather added gate #1 and RTC rules based on wet weather operation proceduresoperation procedures Gate #4 Weir Gate #4 Weir

TOW 399.6 ftTOW 399.6 ft

080A Weir 385.38 ft

080B Weir 398.22 ft

080C Weir 395.63 ft

080E Weir 398.79 ft

EBSS St t Gate #3Gate #3

Gate #4Gate #4Gate #1 Weir Gate #1 Weir TOW 384.2 ftTOW 384.2 ft

Gate #3 Weir Gate #3 Weir TOW 394.09 ftTOW 394.09 ft

OnondagaCreek

EBSS Starts east of

Beech Street

Gate Gate #1#1 Gate #2Gate #2

Gate #3Gate #3

20Wet Weather Operations-EBSS During Small Storms 1.1. Model DevelopmentModel Development

No overflows from 080 regulatorsNo overflows from 080 regulators

080D Weir 401.04 ft

080E Weir

080F Weir 409.07 ft

080G Weir 407.2 ft

080H Weir 409.5 ft

No overflows from 080 regulatorsNo overflows from 080 regulatorsGate status:Gate status:

Gates 1, 3 and 4: OpenGates 1, 3 and 4: OpenGate 2: ClosedGate 2: Closed


EBSS St t

080A Weir 385.38 ft

080B Weir 398.22 ft

080C Weir 395.63 ft

080E Weir 398.79 ft

Gate #3Gate #3



OnondagaCreek

EBSS Starts east of

Beech Street


Gate #3Gate #3

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Wet Weather Operations-EBSS During Large Storms

Overflows from 080 regulatorsOverflows from 080 regulators

080D Weir 401.04 ft

080E Weir

080F Weir 409.07 ft

080G Weir 407.2 ft

080H Weir 409.5 ft

Overflows from 080 regulatorsOverflows from 080 regulatorsGate status during storage modeGate status during storage mode::Gates 1, 3 and 4: ClosedGates 1, 3 and 4: ClosedGate 2: Open/Closed based on MIS water levelGate 2: Open/Closed based on MIS water level


EBSS St t

080A Weir 385.38 ft

080B Weir 398.22 ft

080C Weir 395.63 ft

080E Weir 398.79 ft

Gate #3Gate #3



OnondagaCreek

EBSS Starts east of

Beech Street


Gate #3Gate #3

22


Wet Weather Operations-EBSS After Storms

No overflows from 080 regulatorsNo overflows from 080 regulators

080D Weir 401.04 ft

080E Weir

080F Weir 409.07 ft

080G Weir 407.2 ft

080H Weir 409.5 ft


Gate status during drain mode:Gate status during drain mode:Gate 1: ClosedGate 1: ClosedGates 3 & 4: Open/Closed based on water levelGates 3 & 4: Open/Closed based on water levelGate 2: Open/Closed based on MIS water levelGate 2: Open/Closed based on MIS water level

EBSS St t

080A Weir 385.38 ft

080B Weir 398.22 ft

080C Weir 395.63 ft

080E Weir 398.79 ft

Gate #3Gate #3



pp

OnondagaCreek

EBSS Starts east of

Beech Street


Gate #3Gate #3

23

Outline

11 M d l D l tM d l D l t1.1. Model DevelopmentModel Development

2.2. Calibration Plan (2009 Baseline)Calibration Plan (2009 Baseline)

▫▫ Dry Weather FlowDry Weather Flow

▫▫ Wet Weather FlowWet Weather Flow


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2.2. CalibrationCalibration

Flow Meter (FM) Locations (2004 & 2009)

25


Dry Weather Flow (DWF) CalibrationOriginal Model‐2011DWF to 101 nodes

Updated Model‐2012DWF to 379 nodes

y ( )

26

Dry Weather Flow Calibration ChartsDry Weather Flow Calibration Charts

27


Rain Gauge Locations

2004 ‐ 1 RG (Metro) 2009 ‐ 3 RGs

g

28


HarborHarbor Brook

S h dSewershedFlow Meter Locations

29Clinton Sewershed Flow Meter Locations2.2. CalibrationCalibration

30Midland Sewershed Flow Meter Locations2.2. CalibrationCalibration

CSO 077 is located upstream of CSO 060 pand does not have a separate discharge to a receiving water body.

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Calibration Graphs: 030 Overflow

32

Outline

11 M d lM d l D l tD l t1.1. Model Model DevelopmentDevelopment



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Next Steps1.1. 2009 Annual Capture Baseline2009 Annual Capture Baseline

▫▫ Incorporate 2013 weir survey elevation dataIncorporate 2013 weir survey elevation data▫▫ Finalize results for 4/1/2013 ACJ ReportFinalize results for 4/1/2013 ACJ Report

didi dd i i hi i h▫▫ Coordinate 3Coordinate 3rdrd party review with CDMparty review with CDM2.2. 2012 Annual Capture Update Estimate2012 Annual Capture Update Estimate▫▫ Incorporate 2013 weir survey elevation dataIncorporate 2013 weir survey elevation data▫▫ Incorporate 2013 weir survey elevation dataIncorporate 2013 weir survey elevation data▫▫ Incorporate 2010Incorporate 2010‐‐2012 green infrastructure projects2012 green infrastructure projects▫▫ Validate model using 2012 flow monitoring dataValidate model using 2012 flow monitoring dataValidate model using 2012 flow monitoring dataValidate model using 2012 flow monitoring data▫▫ Identify priority GI project areas for 2013 focusIdentify priority GI project areas for 2013 focus

3.3. 20132013 Annual Capture Goal: 89.5% 12/31/2013 (4/1/2014 ACJ Annual Capture Goal: 89.5% 12/31/2013 (4/1/2014 ACJ R )R )Report)Report)

Questions?Questions?

swmm update - onondaga county save the rain

Documents

rain programjoanne

county executivejoanne

rain programsave

county executivesave

subcatchments hbis

gimpervious manhole

pumpstationspsonondaga

usgs streamsouth riv