6/4/2014 Neil Polglase David Murray Murweh Shire, Queensland May 2014 • Land area of 43,905 km 2 CHARLEVILLE FLOOD MANAGEMENT – • Population MOVING BEYOND MITIGATION – Murweh Shire – 4,910 – Town of Charleville – 3,278 Emergency Management System – Town of Augathella - 500 • Temperatures – 15 oC to 37 oC during the summer months – 3oC to 25 oC during the winter months • Wet season is typically January through April The Warrego River Overtopped its Banks in Town of Charleville, Murweh Shire, April 1990 and February 1997 with Little Queensland Australia Warning In Response to 1990 and the 1997 Flooding, a In March 2010 the Town Floods Again via Levee along Warrego River was Constructed Bradley’s Gully Tributary 1 6/4/2014 Following the 2010 Flood, Queensland In February 2012 –Levee Saves Charleville From Government Funded Two Additional Flood Second Biggest Flood of Record Mitigation Projects • Construction of a second levee along Bradley’s Gully • Project for flood and fire response planning Warrego River Bradley’s Gully Five Major Floods were Recorded Since 1990 Emergency Management System • CDM Smith was selected to meet with Stakeholders and Event Estimated Peak Location Flood Mechanism develop approach to meet their needs (year) Discharge (m 3/s) • First task order included: November 2012 – February 2013 Warrego River 1990 5470 No Levee – Major Warrego River Flooding at Charleville – Onsite visit to review historical data & meet with stakeholders No Levee – Repeat of significant Warrego River 1997 2180 Flooding – Collect relevant data from local and state agencies 2010 1120 Levee Complete, minor River Flooding – Develop scope of services to meet defined expectations and Levee Complete – Peaked at Crest of Levee, be compliant with grant funding requirements 2012 2750 No River Flooding • Second task order included: February 2013 – May 2014 Bradley’s Gully 2008 220 No significant flooding at Charleville – Develop stormwater model for pilot area Levee complete, but major flooding from behind 2010 650 levee due to Bradleys Gully – Develop Emergency Management System (EMS) flood tool 2012 80 Levee holds, minor flooding from Bradleys Gully – Develop fire modeling plan CDM Smith Worked with the Local Disaster Roles and Responsibilities for Disaster Management Group (LDMG) on Flood Response Management Local Disaster Management Group (LDMG) • Assist in the development of a local disaster management plan • Assist with community outreach associated with preparing for an event • Identification and coordination of resources for disaster recovery operations District Management Group (DMG) • Ensure disaster management operations are consistent with Queensland disaster management policies • Develop and review disaster management policies and procedures State Disaster Management Group (SDMG) • Develop a strategic policy framework for disaster management • Develop and maintain protocols for effective disaster management arrangements between Queensland and the Australian Government • Identify resources available within and outside of the State • Provide recommendations to the Minister regarding matters related to disaster management operations • Prepare and maintain the State Disaster Management Plan 2 6/4/2014 Stormwater Model Selected LDMG Flood Response Components Framework • Develop stormwater model • XP-SWMM 2012 covering the 47,000 km 2 Warrego – XP – Rafts commonly used in River Catchment Australia for flood studies • Model resolution • Develop Geographic Information – 107 subcatchments System (GIS) based decision – 242 model links support system – 20 rainfall stations – Leverage predicted and “real • Model calibration & validation time” rainfall and flood level data – 2010, 2012 calibration – ArcMap document and – 1997 validation storm geodatabase platform • Identified 15 “key” decision – Use LDMG protocols for locations emergency response • Simulation goal < 15 minutes Stormwater Model Calibration – Peak Stage Stormwater Model Calibration – Peak Flow 2010 2012 Station 2010 2012 Observed Model Delta (m) Observed Model Delta (m) Station Observed Model Delta (%) Observed Model Delta (%) Augathella 364.1 363.8 -0.3 365.7 365.4 -0.3 Augathella 104 106 1.9 755 659 -12.7 Charleville 294.4 294.5 0.1 295.5 295.6 0.1 Charleville 1120 1135 1.3 2747 2620 -4.6 Wyandra 235.6 235.6 0.0 235.9 235.9 0.0 Wyandra 3163 2976 -5.9 3536 3450 -2.4 Wallen 213.0 212.9 -0.1 213.1 213.2 0.1 Wallen 2937 2905 -1.1 3517 3206 -8.8 Cunnamulla 186.8 186.8 0.0 186.7 186.8 -0.1 Cunnamulla 1591 1553 -2.4 1552 1721 10.9 Raceview 325.9 326.1 0.2 326.1 325.7 -0.4 Raceview 305 276 -9.5 90 89 -1.1 Charleville (BG) 295.3 295.1 -0.2 293.2 239.1 -0.1 Charleville (BG) 600 609 1.5 77 78 1.3 Binnowee 281.2 280.9 -0.3 282.2 282.5 0.3 Binnowee 1432 1424 -0.6 3034 2710 -10.7 Flood Timing is Critical for Decision Making - Flood Timing is Critical for Decision Making - Stage Flow 3 6/4/2014 Stormwater Model Validation Results Model Calibration Summary • Model calibrated well to measured data at eight locations throughout basin for flow, stage, and time 1997 Stage (m AHD) 1997 Flow (cms) • Model verification of 1997 storm event also compared well Station to measured data Observed Model Delta (m) Observed Model Delta (%) • As a result, Murweh Shire staffs and the LDMG had Augathella 365.4 365.4 0.0 657 641 -2.4 confidence in the model in predicting flood timing Charleville 295.2 295.3 0.2 2182 2087 -4.4 and extent Wyandra 235.7 235.7 0.0 3324 3153 -5.1 Cunnamulla 186.6 186.8 0.2 1350 1655 22.6 Flood Response Planning Identified Emergency Response Activities • Mission is to make proactive emergency preparedness • Early warning systems decisions – Sirens, radio, and television • Leverage rainfall and stage monitors • Evacuations • Identify critical decision points for LDMG – Land, air, and boat • Road closures – Time • Sandbag support – Location • Police, fire, and – Response action rescue assistance – Protocols • Air support • Maximize use of – supplies limited resources • Request for additional assistance from state and federal resources Emergency Management System (EMS) Tool Analyze Storm Conditions • Link to Weather Stations: – Bureau of Meteorology – South West NRM • Use hyperlink tool for gage- specific readings 4 6/4/2014 Building a Storm Event Process Storm Data • Leverage rainfall Antecedent moisture The Process Storm Data predictions from condition button will write the results Bureau of to the gage feature class Meteorology Storm duration • Define hydrologic conditions Storm center – Aerial reduction – Individual rain Storm volume gauge • EMS tool builds XP- Apply aerial reduction SWMM runoff data set Storm direction and speed Export XPX File Modeling the Storm The Export Storm to XPX will write the output file to be read by XP-SWMM Load Rainfall Data Import Model Results Import Model Results • Extract the node elevation data from XP-SWMM • Import results to geodatabase • Generates hydrograph tables • Analyzes Critical Locations 5 6/4/2014 Critical Locations Report Using ESRI Report Analyzing the Results Engine and XP-SWMM Model Results • Options for viewing results – Generate critical locations report – Built-in standard ESRI ArcMap functions – Individual critical locations report – View hydrograph – Actions Dashboard Defined by BOM Viewing Results with Standard ESRI Flood Hydrographs Can Be Viewed for the ArcMap Tools Selected Locations The EMS Dashboard Stores “Pre-filled” Forms Individual Critical Locations Report Necessary for Approval and Reimbursements • Subset of each “key” location defined for the Warrego River Cachment • Decision points defined by LDMG 6 6/4/2014 Closing Remarks Acknowledgment of Key Team Members • Proactive response planning tool when manpower resources • Mr. Neil Polglase – Murweh Shire are limited • Mr. Allan Pemberton – Murweh Shire – Estimated time available to respond to a flood threat • Mr. Brian Mack – CDM Smith • Integrated into LDMG annual training held in November 2013 • Mr. Evan O’Brien – CDM Smith Australia • Future discussions • Mr. Tom Nye, Ph.D, P.E. – CDM Smith – Additional decision support management • Mr. Mark Zito, GISP – CDM Smith – Refinement of aerial reduction methods • Mr. Seenu Anandam, P.E. – CDM Smith – Integration into the Qit Plus “Guardian” emergency management system used throughout Australia • Mr. Mike Schmidt. P.E. – CDM Smith – Digital integration of “live” rainfall data DISCUSSION AND QUESTIONS 7.