1 Central Europe Flooding, August 2002 Event Report TM Risk Management Solutions
2 I NTRODUCTION Severe flooding affected parts of Austria, the Czech Republic and Germany for three weeks during August Heavy rainfall from storms that crossed central Europe during early August triggered sequential flood waves along two major river systems. The flood waves moved down the River Danube through Austria and down the Vltava, Labe and Elbe rivers in the Czech Republic and Germany. Unprecedented flood heights, with return periods of up to 500 years, were recorded and over 110 people died. These were the most costly floods affecting Europe in years. As of December 2002, total economic damage estimates exceeded 15 billion Euro, of which about 15% is insured. Germany was the hardest hit, with over two-thirds of the flood s total losses. In particular, the state of Saxony (capital Dresden) sustained nearly half the total loss. The largest loss after Germany was in the Czech Republic, with over 3 billion Euro in damage, of which over a third was concentrated in Prague. Low penetration of flood insurance means that governments will incur most of the repair costs, with some help from the European Union (EU) and voluntary donations. Damage exceeded that of 1997, when the River Oder flooded large areas of the Czech Republic, Poland and along the Polish-German border. A primary driver of the large loss in 2002 was the flood s costly impacts on Dresden and Prague, where massive flooding affected both residential and commercial properties. Flood defenses along the river systems were temporarily extended and strengthened, but water still inundated protected areas in a variety of ways. Underground seepage and dike breaches were two main causes of water ingress. Figure 1. Major rivers and cities affected by the August 2002 floods This report summarizes research into the causes of flooding and resulting damage, focusing on a case study of Prague where RMS conducted a damage survey shortly after the flood peak. Total damage in Prague is estimated at nearly 1 billion Euro. The districts of Lesser Town (Malá Strana), Old Town, the Jewish Quarter (Josefov), and Karlin suffered particularly heavy losses. Belowground entry of water to basements caused most of the damage in the Old Town and Jewish Quarter, while overland flooding affected both the Lesser Town and Karlin. Ancient and unmapped tunnels exacerbated the problem in this historic city. 1 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
3 F LOOD E VENT C HARACTERISTICS The catastrophic flooding that occurred in Austria, the Czech Republic, and Germany was the result of two periods of intense rainfall. The first period of rain on August 6 and 7 fell on southwestern Czech Republic and northeastern Austria, immediately north of a weak area of low pressure. Rainfall accumulations across this region were generally less than 125 mm (5 inches) over this twoday period, but values of up to 255 mm (10 inches) were observed in some locations. Figure 2. Rainfall totals (mm) for the initial period of rain on August 6 and 7 (Czech Hydrological and Meteorological Institute, CHMI) Although this initial phase of rain produced some localized flooding, much of the water runoff was contained by a series of reservoirs (known as the Vltava Cascade) upstream of Prague. Water was gradually released from the dams over the following days, but the increased capacity was insufficient to prevent the flood wave that followed less than a week later. Figure 3. River Vltava in Prague on August 10 after the arrival of water from upstream rains on August 6 and 7 2 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
4 A second more expansive and intense period of rain fell from August 11 and 13. It was produced by an extratropical system classified as the Genoa Cyclone Type Vb, typified by its track from the north Adriatic Sea toward Poland (Figure 4). Genoa Cyclones of this type commonly occur in the spring. However, two specific features of the August Genoa Cyclone led to the extraordinary amounts of rain. First, this cyclone moved more slowly than is commonly observed in the spring. Second, water temperatures in the Adriatic and Mediterranean Seas are significantly warmer in August than in the spring season. These factors caused substantial amounts of atmospheric moisture to advance north from the Adriatic Sea, fuelling the extreme rains. Past flood events in this region have also been associated with this type of storm, such as the River Oder floods in 1813 and Figure 4: Path of the cyclone track between August 9 and 13 Rainfall from the cyclone was focused in two areas: 1) near the Czech/German border in the Erzbirger Mountains and 2) in south Bohemia and northern Austria. Although similar amounts of rain fell in south Bohemia on August 6 and 7, the rain footprint was much more expansive on August 11 and 13. The rainfall triggered flood waves in the upper portions of the Danube and Vltava catchments. One flood wave progressed down the Danube through Austria, Slovakia and Hungary, causing minor damages in the region. A more catastrophic flood wave progressed down the Vltava through Prague and down the Elbe through north Bohemia and Germany. 3 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
5 Figure 5. Rainfall totals (mm) from the Genoa Cylcone between August 11 and 13 (CHMI) The intense rainfall of nearly 320 mm (12.5 inches) over two days in the Erzbirger Mountains was related to a process where upper-level clouds seed low-level clouds over the mountains, enhancing rainfall production. Runoff rapidly entered the River Weisseritz, a tributary of the Elbe in Dresden, causing initial flooding of the city on August 12. At the same time, the Vltava flood wave overtopped reservoirs and rapidly progressed downstream to Prague. The flood wave combined with another wave entering the basin from the River Berounka, just south of Prague, to create an unprecedented river discharge of 5,300 cubic meters per second (187,200 cubic feet per second) in Prague on Wednesday, August 14 (Figure 6). The CHMI estimate a discharge of this magnitude has a 500-year return period. At the beginning of the month before the rain, discharge was recorded at 400 cubic meters per second (14,130 cubic feet per second). River gauge records show the rapid onset of the flood in Prague (Figure 7). 4 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
6 Figure 6. Historic river discharge (cubic meters per second) recorded on the Vltava in Prague since 1827 (CHMI) Figure 7: River heights in Dresden and Prague during August 5 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
7 The flood wave continued down the Vltava into the River Labe (known as the Elbe once it crosses the Czech/German border) and into Germany. On the morning of Saturday, August 17, the river level in Dresden peaked at a record height of 9.4 m (30 feet), superseding the previous record of 8.8 m (29 feet) set in The increase in river height in Dresden was more gradual and of greater magnitude than the flood peak in Prague. The 160-km (100-mile) progression of the flood wave from Prague to Dresden spanned three days. In total, the flood wave took around 12 days to travel from the upper reaches of the Vltava to the mouth of the Elbe in northern Germany, a distance of over 1,000 km (620 miles). 6 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
8 F LOODING D AMAGE AND L OSSES Most of the loss (over 11 billion Euro) came from the River Elbe catchment, which covers 64% of the Czech Republic and 27% of Germany. A further 2 billion Euro damage was caused in Austria. Key contributors to the large loss were damages in Prague, Dresden in the state of Saxony, and Germany (Figure 8). Saxony and Prague together sustained over 7 billion Euro of damage. Figure 8. Overview of rivers and towns affected The weekend of August 10 and 11 saw the first wave of significant damage, as flash floods and landslides were triggered across northern Italy, the state of Bavaria in southern Germany, Austria, Romania and the Baltic Sea coast of Russia. On Monday, August 12, the River Danube in Austria burst its banks at several points in the provinces of Salzburg, Upper Austria, and Lower Austria, which are in northern and central parts of Austria. An estimated 10,000 houses in these areas were damaged or destroyed. Across the border, intense rainfall entered the headwaters of the Vltava, causing extensive damage in the southern Czech Republic (southern Bohemia) during August 12 and 13. Cesky Krumlov, Ceske Budejovice, Plzen, Pisek and Stratonice, which all lie along the Vltava, were covered by up to 1 m (3 feet) of water and hundreds of properties were flooded. As the floodwaters approached Prague, around 50,000 residents were evacuated, all bridges across the Vltava were closed to traffic, and temporary flood barriers nearly 3 m (9 feet) in height were erected along the banks to protect the Old Town. The river flow peaked on Wednesday,August 14 and the flooding was described as the worst in over a century. Many historic buildings were flooded to the first floor, and the state emergency declaration lasted util October 31. The flood wave continued to travel downstream toward the German border and into the River Labe, severely damaging several towns and villages. Across the Czech Republic, 17 people died and some 220,000 people were evacuated. 7 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
9 As the flood moved downstream, towns were generally flooded for longer periods of time. In Dresden, about 200 km (124 miles) from Prague, the River Weisseritz (a tributary of the Elbe which flows from the south near the Czech border) initially broke its banks on August 12. Subsequent flooding submerged the main railway station and parts of the historic city center. Water levels continued to increase as the flood wave on the Elbe approached from Prague, peaking on Saturday, August 17. On this morning, the river reached a height of 9.4 m (30.8 feet) from its usual level of 2 m (6.5 feet). Water inundated low-lying suburbs along the river, as well as basements and ground floors of several important historic buildings in the city s center. Fortunately, flood warnings allowed many original paintings and treasures to be removed from the lower levels of these buildings. More catastrophic flooding occurred further downstream around the towns of Dessau and Bitterfeld, close to the confluence of the River Mulde and the Elbe. On August 19 and 20, runoff from the intense rainfall near the Czech-German border entered the Mulde and converged with the leading edge of the flood wave on the Elbe. Around 30% to 50% of the towns of Torgau, Wittenberg, Dessau and Bitterfeld were submerged and water covered a 12 km (7.5 miles) wide area, as shown in the satellite image below (Figure 9). Estimates derived from satellite imagery are that 592 square kilometers (229 square miles) of Germany s land was flooded, of which 480 square kilometers (185 square miles) was in the state of Saxony-Anhalt. Figure 9. Satellite image of the River Elbe between Dresden and Havelberg before (August 14) and after flood inundation (August 20). Water is shown in blue, vegetation in red, and non-vegetated areas (such as urban land cover) are shown in gray. [Image courtesy of DLR, German Center for Air and Space Travel] 8 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
10 Earth dikes run alongside each bank of the Elbe through this relatively flat, low-lying area. Two weeks of heavy rain and high water saturated the dikes, causing them to weaken dramatically. Despite reinforcement with millions of sandbags, pressure exerted by the flood peak on these sodden defenses caused several breaks during August 17, 18 and 19. Thousands of military personnel and volunteers participated in this reinforcement exercise. Similar structural weakening was observed in the Oder floods in August 1997 and the Rhine floods of January According to the International Commission for the Protection of the Elbe, 39% of the 1,200 km (745 miles) of dikes along the Elbe in Germany need structural renovation. In the state of Saxony-Anhalt, 46% of the dikes need repair, and many are over 100 years old. However, the estimated cost of renovating each kilometer (0.6 miles) is 750,000 Euro. Across the affected region of Germany, 180 bridges were damaged, along with 740 km (460 miles) of roads and 538 km (334 miles) of railway track. The main railway line between Dresden and Prague was closed for more than four months. In the immediate aftermath of the floods, the German Government pledged to reduce construction on floodplains and limit the straightening of river channels. RMS Damage Survey of Central Prague Dating back at least to the 10 th century, Prague is the capital city of the Czech Republic and one of the most popular tourist destinations in Europe. The River Vltava bisects Prague, running through its central and most historic part. In the city center, the left bank of the Vltava in central Prague rises up steeply to the historic Prague Castle, with the Lesser Quarter (Malá Strana) below, close to the riverbank. The more gently sloping, sprawling right bank of the Vltava includes the Old Town (Staré Mesto), the Jewish Quarter (Josefov), New Town (Nové Mesto), and Karlin (see Figure 9). High stone walls border much of the river through Prague, protecting large areas from flooding. However, low-lying parts of the Lesser Quarter, Old Town, and Karlin have no significant defenses. Although temporary flood barriers were erected in August to protect the Old Town, the Lesser Quarter and Karlin were left exposed to inundation from the river. An extensive network of tunnels and underground infrastructure also acted as a conduit for floodwaters, penetrating inland into the Old Town and the Jewish Quarter. The combined effects of surface water and underground seepage also flooded the Metro, Prague s primary public transit system. RMS surveyed damage in these districts about two weeks into the flooding. The following sections describe the survey findings. 9 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
11 Figure 10. Summary and extent of RMS damage survey in Prague Old Town and The Jewish Quarter As warnings of the impending flood were issued, city officials implemented Prague s flood protection plan and erected a temporary barrier along the Vltava s right bank, protecting most of the Old Town. Figure 10 shows the barrier protecting the Four Seasons Hotel and surrounding properties. Prague financed the barrier following severe flooding in The barrier is made up of 3 m (10 feet) long aluminum bars stacked horizontally in-between support posts that are dropped into pre-sunken holes 6 m (20 feet) deep. 10 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
12 Figure 11. View toward the Old Town showing the temporary flood barrier in front of The Four Seasons Hotel The barrier was effective in preventing the river water from inundating the streets of Old Town and Josefov, but some property extends out into the river, and remained exposed to flooding. This area (visible in Figure 11) is the inundated area opposite Kampa Island. The barrier was located to the east of these properties, allowing water to run up the south face of the buildings and flow through the ground floors, exiting the rear of the buildings immediately to the south of the Charles Bridge. Although properties such as The Four Seasons Hotel were protected from direct inundation, basements and much of the city s underground infrastructure were damaged when water entered through the city s sewage system and numerous old tunnels. Building damage in the Old Town largely depended on the condition of each building s foundations and its proximity to any underground sewers, tunnels and other infrastructure. For example, the Four Seasons Hotel sustained enough damage from below-ground water that it is not expected to re-open until July The amount of underground flooding in Old Town and Josefov suggest that the city s age played a role in the observed flood damages. Basements in this area are commonly used as residences, businesses and for storage. The contents and interior spaces of many flooded basements were heavily damaged (Figure 12). Site-specific structural surveys were required at many locations to ensure buildings were sound before standing water could be pumped out, as the high external water pressure could cause walls to collapse inwards. Vents to basements of many businesses and homes in the district were left open for several weeks to assist evaporation of the water. 11 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
13 Figure 12. Piles of damaged contents lay in the streets The seeping waters also heavily damaged Prague and Karlin s utility infrastructure (Figure 13). Gas service to central Prague was cut while workers repaired the damaged equipment and pipes. Electricity was restored to most areas in mid-september, gas in October, and telephone services in November. Some areas, however, were without a fully functioning heating service for several months. Many buildings within these areas were unusable during this time, and for the others the use of portable dehumidifiers and heaters increased business interruption costs. There were also many reported instances of roads cracks and pavements buckling. Warmer weather in spring and summer 2003 may cause more cracks and holes as the earth and buildings begin to expand again after the cold winter. Figure 13. Repairs to below ground infrastructure were visible throughout the Old Town 12 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
14 The river water submerged islands south of the Charles Bridge, which connects the Old Town to Kampa Island in Lesser Town. Buildings on these islands had visible water marks on the outside, clearly indicating the depth of flooding. There was a notably high quality of construction of the properties on these islands, particularly relative to some of those observed in the Karlin District. Although directly impacted, the restaurant in Figure 14 survived the direct force of the river s current on its south facing wall, as well as impacts from waterborne debris. On the contrary, collapsed buildings in Karlin were located much further inland and far from the water s strongest currents. Figure 14. This restaurant on an island south of Legions Bridge survived the flood structurally sound (left picture courtesy of Radio Prague) Metro Transportation System Prague s Metro is a modern, below-ground electric mass transit system. Flooding closed thirteen stations and the associated connecting lines (bold dashed lines in Figure 10). Repairs continued for at least 6 months, at an estimated cost of 230 million Euro (Figure 15). There were several methods of water entry that caused the inundation of a large section of the system. Five stations flooded as water poured in from the street. Water leaked into others through poorly sealed electrical cables, which extend through stations and tunnels up to the surface. Although refuted, the local 9olice reported that some of the heavy doors leading into the stations from outside, as well as pressure-sealed doors that isolated stations from the tunnels, were not closed properly. The pressure-sealed doors were designed to keep gases (rather than water) out, in the event of military attacks; the mechanism for closing them is complicated. Water was also forced into the tunnels by the high water pressure underground. Under normal conditions up to 4,000 cubic meters (140,000 cubic feet) of water has to be pumped from the network each day because of water ingress. Poor quality construction and repair work has also been identified as a possible cause of breakages in the tunnel walls. 13 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
15 Figure 15. Flooding of the Florenc Metro station (left; courtesy Radio Prague) and removal of water at the Staroměstská Metro station (shown on right) Lesser Town (Malá Strana) Lesser Town (shown as survey area 2 on Figure 10) is a historic district on the left bank of the Vltava. The district is bounded to the west by the steep hill of Prague Castle, which limits the area at risk from flooding to a 300 to 500 meter zone (984 to 1640 feet). Many of the buildings date from the 17th and 18th century, with some built as long ago as the 13th century when the district was first settled. This high-risk flood zone includes Kampa Island, separated from the rest of Lesser Town by Certovka Creek. Although proposals have been made in the past, a floodgate was not installed on the Certovka Creek to protect Kampa because local officials feared that it might depreciate the historic nature of the surroundings. In August, sandbags were employed along the riverbank, but were overwhelmed by the volume of water. As a result, the water depth reached over 4 meters (13 feet), causing near complete content losses in the ground floor of structures in this area and prolonged business disruption. However, despite its direct exposure to the river s current, there were no structural failures in this area. 14 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
16 Figure 16. Water marks are clearly visible on the outside of this building on Certovka Creek, immediately west of Kampa Island The primary cause of damage in Lesser Town was from above ground flooding and water entry into buildings. Severe damage was observed on outside walls and in the interiors of building basements and first floors (Figure 16). Water marks were plainly visible on the exterior of buildings and some buildings suffered severe masonry damage. Internal damage, such as ruined plaster and holes in the floor, were also common throughout the flooded area. Figure 17. Severe masonry damage on the outside, and floor collapse inside a building in Lesser Town (photos courtesy of Radio Prague) 15 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
17 Karlin Karlin is located downstream of the Jewish Quarter on the right bank of the Vltava. Built in the 18 th century, Karlin was the first suburb outside the original city walls. It is a flat, low elevation, mainly residential district, with multi-story buildings. Floodwaters swamped the district and it suffered some of the worst damage in the city. Water entered buildings from both above and below ground. In total 1,100 buildings were flooded, 43 were condemned and three collapsed (Figure 18). Damage to the public housing units in the district is estimated at up to 50 million Euro. Out of Karlin s 25,000 evacuated inhabitants, only 30% were able to return to their homes within the first three months after the floods. Six months after the floods, 33% of the privately owned residences in the district were still uninhabitable. Many people, or their landlords, lack the necessary funds to repair their properties. Figure 18. This multi-story building collapsed whilst the district was still flooded. The complete failure of one part of the building can clearly be seen (photos courtesy of Radio Prague) Some buildings settled unevenly as water undermined their foundations and triggered collapses. Karlin s older buildings were particularly susceptible, partly because of the addition of extra stories (and added weight) since their original construction. Localized settling was also visible near several building foundations (Figure 19). Poor soil quality, as reported in this area, also contributed to the failures. 16 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
18 Figure 19. Settling of the pavement soil is evidence that water may have undermined this building. The structure is shored up by temporary supports to prevent collapse In some rare situations, water levels rose high enough to threaten both the ground floor commercial space and also the residential uses on the second floor. An example is shown in Figure 19, where the water line is visible just below the second story window of the brown building in the center of the photograph. The photograph also illustrates how the percentage of total loss for a structure depended highly on the structure s height and number of stories affected. Figure 20. Water lines on these structures mark peak flood heights impacting the first two stories of properties in some portions of Karlin The flooding of petrol stations in the Karlin district caused additional risks from the associated floodwater contaminations. Health risk warnings were issued for both residents and volunteers. Residents returning to Karlin in order to retrieve their belongings were advised to scrape potentially contaminated mud off their shoes when leaving the district and not to take food out. 17 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
19 E CONOMIC I MPACTS Re/insurance Industries In the immediate aftermath of the floods, total losses were feared to be as high as 20 billion Euro. However, the final costs are now expected to be less than this. In August, loss estimates for Germany alone were as high as 25 billion Euro, following an initial estimate of 15 billion Euro. However, on November 6, the German Ministry of the Interior estimated flood damage from the Elbe and Danube in Germany to be 9.2 billion Euro. The state of Saxony suffered the worst loss, with slightly more than 6 billion Euro in damages, primarily driven by losses in Dresden. Austria had an estimated 2 billion Euro in damages. On November 5, the Czech Government revised its total loss estimate to 2.3 billion Euro, down from an earlier estimate 3.3 billion Euro issued at the time of the floods. Prague s damage alone is estimated to be 0.8 billion Euro. Total economic damages in the Czech Republic following the 1997 floods was similar, with 2 billion Euro in costs. The 2002 floods caused much greater loss when considering all affected countries. The total price tag for the 1997 flood losses in Europe was only about 6 billion Euro, of which less than 1 billion Euro was insured. The large losses in Germany appear to have driven up the overall losses for the 2002 floods. In the countries affected by the 2002 floods, flood coverage is not usually included in standard residential or commercial insurance policies. It is, however, generally available at a supplementary charge. The price charged varies according to location. For example, some high-risk areas of Germany are prohibitively expensive. According to the Czech Republic s largest insurer Ceska Pojistovna, only 50% of their household policyholders have this additional flood coverage. This corresponds with loss estimates for the country, which indicates that less than 50% of the total loss was insured. In mid-september, the Czech Insurers' Association estimated that the insured loss in the country was about 1 billion Euro, with 78,000 claims expected Premiums have risen as an immediate consequence of the 2002 floods. In October, the Czech Republic s second largest insurer, Kooperativa Pojistovna, introduced a new method of evaluating flood risk. It resulted in a 30% rise in premiums for properties inside flood zones. Some smaller companies have stopped insuring properties that have flooded more than three times in the last 10 years. Overall, premiums for flood coverage in the country are expected to rise by 10% to 30 %. Across Germany, only an estimated 10% of households have supplementary flood coverage. However, in the states that make up the former East Germany, comprehensive policies were offered by the old state-run monopoly Staatliche Versicherung. Following unification, Allianz acquired these policies and around 3 million are still in operation, equivalent to around 30% of households in these states. According to their review, the cost to Allianz, the bearer of the largest share of losses in the 2002 floods, was 700 million Euro. Allianz reports that increases in premiums of 7 to 9 % are likely as a result of the floods and other storm events. Only a limited number of commercial businesses in these countries carry flood insurance. Therefore, a significant amount of commercial losses are being born by business owners. 18 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
20 Government and Local The lack of private flood insurance across central Europe means that a considerable proportion of the recovery costs are being covered by national governments. Government grants and aid packages are being offered to individuals and local and regional authorities, and charitable organizations are offering some funds through voluntary donations. In order to cover the expected costs, the Czech Republic is revising its tax system in A new income tax bracket is being introduced for high earners. Indirect taxes, for example on cigarettes and alcohol, are also being raised. In Germany, tax cuts planned for the summer 2002 were deferred for a year. The EU has proposed a 728 million Euro aid package for all affected countries, to aid in restoration of vital equipment and infrastructure. Of this, 444 million Euro will be allocated to Germany and 129 million to the Czech Republic. 19 Central Europe Flooding, August 2002 Copyright 2003 Risk Management Solutions, Inc. All Rights Reserved.
Central European Flooding, August 2002 CENTRAL EUROPEAN FLOODING AUGUST 2002 An EQECAT Technical Report Jane Toothill flood_rept Page i of ii Central European Flooding, August 2002 CONTENTS Page 1 Meteorological
Elbe flood in 2002 and 2006 in terms of emergency management Ing. Jaroslav Pikal, Regional Authority of the Usti Region 10 Years of Transnational Cooperation in Flood Risk Management at the LABe ELbe Saxon
Structural Damage Due to Floods By Craig D. Rogers, P.E. The Federal Emergency Management Agency (FEMA) reports that each year approximately 90 percent of all disaster-related property damage results from
GEOTECHNICAL ISSUES OF LANDSLIDES CHARACTERISTICS MECHANISMS PREPARDNESS: BEFORE, DURING AND AFTER A LANDSLIDE QUESTIONS FOR DISCUSSIONS Huge landslide Leyte, Phillipines, 1998 2000 casulties Small debris
The AIR Inland Flood Model for the United States In Spring 2011, heavy rainfall and snowmelt produced massive flooding along the Mississippi River, inundating huge swaths of land across seven states. As
FLOOD FACTS AND SAFETY TIPS Floods are one of the most common hazards in the United States. Flood effects can be local, impacting a neighborhood or community, or very large, affecting entire river basins
Flooding Fast Facts What is a flood? Flooding is the unusual presence of water on land to a depth which affects normal activities. Flooding can arise from: Overflowing rivers (river flooding), Heavy rainfall
Sub-sector Guideline: (1) Sediment-related Disaster Prevention (Adaptation Project) (2) Sediment-related Disaster Prevention (BAU Development with Adaptation Options) Basic Concept A. General Concept B.
Drought in the Czech Republic in 2015 A preliminary summary October 2015, Prague DISCLAIMER All data used in this preliminary report are operational and might be a subject of change during quality control.
Chapter 2 Flash Flood Science A flash flood is generally defined as a rapid onset flood of short duration with a relatively high peak discharge (World Meteorological Organization). The American Meteorological
later damage - Loss ControL axisinsurance.ca Table of Contents EXECUTIVE SUMMARY... 1 FACILITY SYSTEMS WATER DAMAGE... 2 Frozen Pipes.....................................................................................
The Boscastle Flood 2004 by Phil Bull Causes of the Flood Physical Causes The flood took Boscastle entirely by surprise - it was a flash flood event & the village is not prone to regular annual flooding
FLOOD INFORMATION SERVICE EXPLANATORY NOTES Part 1 About the flood maps Limitations of the mapping What the maps don t show Where to find more information Definitions of words used to describe flooding.
Antecedent Conditions: Record to Near Record Heat occurred across Northeast & North Central Colorado September 2-8. A cold front moved across Northeast Colorado the morning of the 9 th, and deeper subtropical
Landslides Learn if landslides, including debris flows, could occur in your area by contacting local officials, your state geological survey or department of natural resources, or the geology department
Preliminary Damage Assessment (PDA) Field Guide INDIVIDUAL ASSISTANCE The Purpose of this Preliminary Damage Assessment Field Guide This field guide has been designed to serve as a quick reference tool
Landslides & Mudslides Landslides, also known as mudslides and debris flow, occur in all U.S. states and territories. In snowy mountainous areas winter snow landslides are called avalanches. Landslides
AIR WHITE PAPER AFTER PHAILIN: UNDERSTANDING CYCLONE RISK IN INDIA In 2013, Phailin, the first major tropical cyclone to hit India since 1999, made landfall as a Category 4 storm near Gopalpur on India
Objective 4: Enhanced community education, flood awareness and preparedness Understanding the extent and full impacts of flooding is essential for planning for potential future pressures on the drainage
EMERGENCY ACTION PLAN UPDATE OF LAKE GENEVA DAM ID #617 Prepared for: LAKE GENEVA ASSOCIATION 1114 E. Geneva Drive City of DeWitt, MI Modified by: WILCOX PROFESSIONAL SERVICES, LLC 111 W. Edgewood Blvd.,
Small Dam Hazard Assessment Inventory What would happen if your dam were to fail? This is a question that most dam owners hope they will never have to answer. However it is a question you, as a responsible
Hazard Manager User guide Making use of the weather layers How will this guide help me? This guide will help you understand the information that is available within Hazard Manager and how to make use of
EXTREME 1990 FLOODING From March 16 to 17, 1990, heavy rainfall in northwestern Florida sent surging flood waters throughout the region for days (Figure 1). An estimated 2,500 residents were evacuated,
FLOOD DAMAGE PREVENTION ORDINANCE SECTION 1.0 STATUTORY AUTHORIZATION, FINDINGS FO FACT, PURPOSE, AND OBJECTIVES 1.1 STATUTORY AUTHORIZATION The Legislature of the State of Washington has in RCW delegated
THE AUGUST 2002 FLOOD IN PRAGUE IN THE CONTEXT OF HISTORICAL AND RECENT FLOODS IN THE CZECH REPUBLIC Rudolf Brázdil Institute of Geography, Masaryk University, Brno, Czech Republic Outline 1) The August
CHAPTER 5 Elevating Your House Introduction One of the most common retrofitting methods is elevating a house to a required or desired Flood Protection Elevation (FPE). When a house is properly elevated,
Introduction: Floods occur when runoff from rain or snowmelt exceeds the capacity of rivers, stream channels or lakes and overflows onto adjacent land. Floods can also be caused by storm surges and waves
BASEMENT FLOODING Prevention Guide for Homeowners 1 Did You Know? Floods are the most common hazards in Canada. Water damage is a common cause of loss for homeowner insurance. A heavy rainfall can result
The Ultimate Guide To Protecting Your House From Water In The Basement Table of Contents 3 Causes of Water in the Basement!... 3 Reason Number 1: Poor Grading!... 3 Reason Number 2: Improper Drainage!...
Flood Risk Management Value of Flood Risk Management Every year floods sweep through communities across the United States taking lives, destroying property, shutting down businesses, harming the environment
Flood Risk Management Value of Flood Risk Management Value to Individuals and Communities Every year floods sweep through communities across the United States taking lives, destroying property, shutting
Town of Amherst Flood Plan Annex The following document is an annex to the Town of Amherst Disaster Plan and is specifically used as a guideline for Flooding events Flood Plans can enable a flexible response
Flood Evacuation Strategy Hawkins Lane, Burton on Trent Tesco Stores Ltd 10-Apr-14 Issue and Revision Record Rev Date Changes Originator Checker Approver - 10.09.10 N/A BS GB NK A 10.04.14 Amended to suit
5.0 OVERVIEW OF FLOOD DAMAGE REDUCTION MEASURES Flood damage reduction consists of two basic techniques structural and non-structural. Structural methods modify the flood and take the flood away from people
SESSION 5: RIVER SYSTEMS KEY CONCEPTS: In this session we will focus on the following aspects: - Where the water in rivers come from. - Factors influencing run-off, infiltration (and rate of erosion) -
(Examples adapted from materials developed for FEMA/NFIP training for insurance agents.) Flood Insurance Essentials Agent Training for the National Flood Insurance Program The Least You Need to Know Every
Flooding in Brisbane A guide for residents photo provided by Conan Whitehouse Brisbane is a thriving, world-class city, enjoyed by residents and visitors. Like many cities around the world, Brisbane has
FLOOD FORECASTING PRACTICE IN NORTHERN CALIFORNIA California Department of Water Resources Post Office Box 219000, Sacramento, California 95821 9000 USA By Maurice Roos, Chief Hydrologist ABSTRACT Although
ACE GLOBAL RISK ENGINEERING INFORMATION BULLETIN BUSINESS FLOOD PLANNING AND MITIGATION GUIDE Introduction The most common cause of flooding is due to established water storage areas (natural and man-made)
Topic: Drainage basins as open systems 188.8.131.52 Runoff, hydrographs & changes in the water cycle over time What you need to know How runoff varies within the water cycle. How to analyse a flood hydrograph
FLOOD RISK RECENT TRENDS AND POLICY RESPONSES DEVELOPING WESTMINSTER S LOCAL PLAN Booklet No. 2 LDF Consultation - CMP Revision November 2013 INTRODUCTION CLLR ROBERT DAVIS Westminster is at risk of flooding
Essex County Council Stock City of Chelmsford Rev Date Details Author Checked and Approved By 01 February 2015 Draft report for stakeholder consultation Ed Clarke Flood Investigation Engineer Lucy Shepherd
Swannanoa River Flood Risk Management Study Measures Evaluated to Reduce Future Flood Damages City of Asheville U.S. Army Corps of Engineers Flooding History Part of the 132 square mile Swannanoa River
The IPCC Special Report on Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation A changing climate leads to changes in extreme weather and climate events 2 How do changes
Mortgage lending and flood insurance in Poland 2011 Agenda 1. General information on mortgage lending in Poland 2. Mortgage lendings and insurance 3. Polish flood exposure 4. Recent Polish major floods
7. Runoff Processes 7-1 Rain and snowmelt water take various paths to streams. Each path contributes differently to; - peak and timing of storm runoff - erosion - transport of chemicals into streams Planners
Environment Committee FLOOD RISKS IN LONDON Summary of findings April 2014 About this summary 2 This is a summary of the findings of the Environment Committee s investigation into flood risk. In January
Siting and settlement: The most important way to protect shelter from floods is to build in a place that is unlikely to be flooded. Key Messages Shelters and settlements should be sited above the highest
Protect Your Home From Flooding A guide for Lethbridge Residents Every year, millions of litres of water flow into the City of Lethbridge s stormwater and wastewater collection systems from residential
Frequently-Asked Questions about Floodplains and Flood Insurance What is a floodplain? The floodplain is any area covered by water during normal water flows, and which could be inundated as a result of
ARTICLE 16. FLOOD DAMAGE PREVENTION Section 16-1: Findings of Fact The flood hazard areas of the Town of Lillington are subject to periodic inundation which results in loss of life and property, health
1953 U.K. Floods 50-year Retrospective TM Risk Management Solutions S UMMARY The storm surge that struck the east coast of England and the southwest coast of the Netherlands during the night of Saturday
Flood Protection Tips Information About Floodplains and Flood Prevention What is a floodplain? Floodplains serve many useful purposes, and those that are preserved in their natural or nearly natural state
Best Practice of Flood Hazard Map in Japan 1. Hazard map in Japan There are about 1,500 municipalities in Japan, which need to prepare flood hazard map. 510 municipalities have already made and disclosed
Available online at www.iseec2012.com I-SEEC 2012 Proceeding - Science and Engineering (2013) 583 590 Proceeding Science and Engineering www.iseec2012.com Science and Engineering Symposium 4 th International
FIRE INSURANCE CLAUSES 1. Earthquake and Volcano Eruption Clause All kinds of damages including those arising directly or indirectly out of earthquakes, tsunami or volcano eruptions including fire, explosion,
How to Identify, Evaluate & Repair Shrinkage Cracks in Poured Concrete What is concrete shrinkage cracking, how and where does it occur? Are concrete floor cracks a structural problem? How to recognize
The Hydrologic Cycle Page 1 of 1 Name Directions: The hydrologic cycle consists of the processes that change and move water through the earth s system. Use the terms below to label the hydrologic cycle.
Flood Emergency Response Planning: How to Protect Your Business from a Natural Disaster RIC005 Speakers: Tom Chan, CEO, Global Risk Miyamoto Greg Bates, Principal, Global Risk Consultants Learning Objectives
Strategy Name: Reduce Existing Potential for Flood Damages LRSW-S3C1. Develop and implement a program to: Minimize flood damages through the use of structural measures. Minimize flood damages through the
Background/Introduction RISK ANALYSIS MODULE 3, CASE STUDY 2 Flood Damage Potential at European Scale By Dr. Peter Burek There is good reason to be concerned about the growth of flood losses in Europe.
Flood Checklist The following may serve as a checklist when preparing for a flood. This checklist should be tailored to processes/operations, flood protection equipment and flood potentials at your specific
Flooding General Flooding is the leading cause of death among all types of natural disasters throughout the United States, with its ability to roll boulders the size of cars, tear out trees, and destroy
Barre City (VERI Land Use Regulations Update policies allowing fill in flood hazard areas. RPC, DEC River Management, VLCT, Allowing landowners to elevate buildings using fill may help protect an individual
C. Pfurtscheller R. Schwarze ESTIMATING THE COSTS OF EMERGENCY SERVICES DURING FLOOD EVENTS Funding Project Management Coordination Agenda Introduction Emergency costs State of the art Flooding of 2005
Appendix 3 Historical records of flooding Table A3-1. Historical records of flooding in Mid Devon Ref. Date Description Source 1 13 October 1625 A tremendous flood swept through the valley, causing great
Bankstown Business Estate Flood Emergency Management Plan Prepared for Represented by Leda Holdings Pty Ltd Gemma Wawn, Development Manager Document owner Click here to enter text. Approval date Revision
CITY OF HIGHLAND PARK, ILLINOIS Stormwater Management Fact Sheet WHAT IS STORMWATER MANAGEMENT? Stormwater management is the method for channeling rainfall through pipes and sewers away from property to
A local law for Flood Damage Prevention as authorized by the New York State Constitution, Article IX, Section 2, and Environmental Conservation Law, Article 36 1.1 FINDINGS SECTION 1.0 STATUTORY AUTHORIZATION
Lisgar District Basement Water Infiltration Investigation Part A Answers to Technical Questions 1. There has been a tremendous amount of work done everywhere along the creek. If there was nothing wrong
BANGKOK FLOOD PROTECTION SYSTEM Bangkok Metropolitan Administration (BMA) Catchment area of Chao Phraya River is 160,000 sq.km. or about 1/3 of the country The Chao Phraya River flows passing through Bangkok
Damage Potential of Tropical Cyclone Regional Specialised Meteorological Centre (RSMC)- Tropical Cyclone, New Delhi Cyclone Warning Division India Meteorological Department Mausam Bhavan, Lodi Road, New
ARTICLE 12 FLOOD DAMAGE PREVENTION SECTION 12.1 AUTHORIZATION 12.1.1 General The Legislature of the State of North Carolina has in Part 6, Article 21 of Chapter 143; Parts 3 and 4 of Article 18 of Chapter
The City of Ottawa Flood Hazards The City of Ottawa is located in North Central LaSalle County, approximately 45 miles West of Joliet and 90 miles South of Rockford. The primary water course and sources
FLOOD HAZARD MAPPING PROJECT IN RATNAPURA CITY Prepared By R.M.S.A.B Rajapakse Department of Irrigation (WR & PP Branch) Sri Lanka 1 1.0 Back ground and Objectives of the Planned Project In Sri Lanka there
Possible Submission about Water and Flooding (See maps 3a and 3b) From Mole Valley Local Development Framework: Strategic Flood Risk Assessment Update 2012 (http://www.molevalley.gov.uk/media/pdf/c/r/srfa_-_updated_jnauary_2012.pdf
Estimating Potential Reduction Flood Benefits of Restored Wetlands Kenneth W. Potter University of Wisconsin Introduction Throughout the summer of 1993 a recurring question was the impact of wetland drainage
Why it works Way d r a The H y y Wa s a E e Th When rising waters from nearby streams, rivers or heavy rains threaten your property, your doorways are most likely the weakest link in your home s defenses
Chapter 3: Harvesting rainwater for landscape use Topics to be covered in this chapter I. Why harvest rainwater? II. Creating a rainwater harvesting system III. Types of rainwater harvesting systems IV.
LIVING WITH FLOOD IN THE MEKONG DELTA, VIETNAM Tran Thi Trieu, Nguyen Hieu Trung, Le Anh Tuan THE MEKONG RIVER DELTA Mekong River Delta is in the most southern of Vietnam. The MD is considered as a biggest
Disaster Prevention Measures in Global-Local Context 4 th World Water Forum Dr. Yoshihiko Yamashita CTI Engineering Co., Ltd Association of Japanese Consulting Engineers Outline of Presentation Up-to to-date
ECONOMIC ANALYSIS FLOOD DAMAGE REDUCTION Lower Carmel River Floodplain Restoration and Enhancement Project I. Description of the Project and its Relationship to Other Projects in the Proposal The Lower
Commercial Residential Model Reviews Prepared by the Professional Team for The Florida Commission on Hurricane Loss Projection Methodology May 2002 I. Background and Items for Consideration In May, 2000,
C Recommendations for future developments C.1 Reducing flood risk through site layout and design C.1.1 C.1.2 Flood risk should be considered at an early stage in deciding the layout and design of a site
DISTRICT OF COLUMBIA WATER AND SEWER AUTHORITY a guide to PREVENTING SEWER BACKUPS AND FLOODING Sewer backups and flooding can damage District homes and businesses. Sewer blockages are most commonly found