Managing Storm Flows in RealTime: The Eastney ProjectJody Cockcroft – 4DRichard Body - Innovyze

The Eastney Project

Background Introduction to the problem Identifying potential solutions Implementing the solution - Eastney Early

Warning System Next Steps Summary of Benefits

Portsmouth

Cowes

Gosport

Background

The Solent

Background

LegendTopography (m AOD)

<13710+

1870

Sewerage Network

HMNBPortsmouth

Storm TanksSSO

LSO

Low Level DWF WPS

Final Effluent WPS

High LevelTransfer WPS

High Storm WPS

Inlet Screens/Headworks

Eastney Sister WPS Low Level Storm WPS

Screened Effluent WPS

Friday 15th September 2000• Over 300 properties

flooded internally

• 530 properties floodedexternally to reporteddepths of up to 1.5 metres.

• 18 rescue boats onstandby

• HMNB Portsmouthcompromised

• Debated on the floor of theHouse of Commons.

AMP4 Investigations

• Suitability of the catchmentusing PASST approach

• Identified potential of radarrainfall

• Locations of rain gaugesand sensors

• Alternative approaches tomodelling

• Whole catchment benefits

Benefits to Eastney

• Reduced risk of flooding inextreme events

• Advanced warning of stormevents for operators

• Catchment wide view ofnetwork

• Alerts on divergence

• Long term modelcalibration

AMP5 Funded ObligationsElement Description Cost Timing

Resilience9 m3/sec Stand-by Pump Station at Eastney WPS £ 20M AMP 4

Early Warning System £ 0.250M AMP 5

1 in 76 Year Levelof Protection Surface Water Separation

£ 20M AMP 5Tide LockedOutfalls Gruneisen Road SWPS & Kirtley Close CSO

Tidal Infiltration Spice Island – Sewer Relining

Additional Funding AMP 6

The Solution: intelligent sewer operation

Decisionmaking

Dissemination

Forecasted pumpoperation and tank

flow

Automated model runs

Innovyze forecasting history

FloodWorks developed in 1999 Successfully implemented for river flooding in locations around the world

Notable examples Flanders Environment Ministry (VMM) www.waterinfo.be

Klang river basin in Malaysia

Blackwater river basin in Ireland

San Antonio River Authority in Texas

Extended to include urban drainage models in 2009 First system in Fano, Italy

Thames Water implementation

Limitations identified, leading to development of ICMLive in 2013

Innovyze - operational forecasting

Links to telemetry and other data sources to receivereal-time and forecast data

Runs regular automatic simulations of thehydrodynamic model

Run interval can be reduced automatically if variouscriteria is met

Forecasts levels, flows & water quality across wholeurban catchment

Generates warnings and alerts to the operator

Results output to websites

ICMLive Operational Forecasting

Real timedata

ICMLive

Operationalforecasts

RadarTelemetry• Rain gauges• Water levels• Flow meters• Pump operation• Gate movements

InfoWorks ICM model

ICMLive Data Connections

Supports spatial andscalar data

Data from a range offormats

Direct connections to thedatabases

Data pulled into modelbefore forecasts run

Data latency, shift,scaling, QA checking

Early Warning System – Timeline

2011: EWSrequirement

Scopedefinition

2012:FloodWorksPrototype

Operatorbuy in

2013: Systemmoved toICMLive

Newplatform

April 2014: Liveimplementation

Phase 1roll out

May 2014:EA/SW

Demonstration

Eastney Implementation

Phased roll out Phase 1: implementation of system warning of flows to Fort

Cumberland storm tanks

Phase 2: inclusion of pump signals (July 2014)

Phase 3: addition of ten SLMs for comparison and analysis(August 2014)

Phase 4: deployment into the SW system, training operators(December 2014)

System Inputs

Rainfall Five pluviometers

Nowcast radar rainfall data from UKMO

Pumps Four pumping stations at Cosham, Eastney, Mainland and Copnor

10 SLMs

Pembroke Gardens Pluviometer

Copnor WPS Connection

PumpRain gaugeSLM

The Operational System

Future Implementation

Addition of pump information Two pump feeds used to control pump operation in hindcast and forecast

Eastney pumping station connected to the telemetry system

Pump forecasting Providing ‘heads up’ warning of expected pump operations and warnings

when pumps are not being operated as expected

Addition of SLMs Added benefit of easily comparing the observations with the model results

leading to improved calibration

Alerting on significant differences where the differences may give a clue of asystem problem

Better understanding of network operation

Benefits to the Eastney Catchment andBeyond

The key benefit! Protection to Portsmouth

Allows SW operations to have a simple automated tool to act astheir eyes and ears

Advance warning of pump operation

System can alert on forecasted operations not being carried out

System can alert on system problems Missing inputs

Model divergence

Improved system calibration