Flood Risk Mapping Studies / Public Information Maps

Flooding is a natural process that is a necessary component to the survival and health of many types of ecosystems. The processes and conditions that result in floods are often predictable and usually occur in the same areas, known as floodplains. Unfortunately people are often drawn to inhabit and develop in floodplains as this is usually flat, fertile land. Because of this, floods are one of the most common natural hazards in Newfoundland and Labrador and are often the most costly. Floods can cause considerable damage to property and infrastructure, threaten human lives and cost millions in emergency assistance, clean-up and remediation.

Flooding and erosion processes are quite difficult to control and avoid. As such, the best and most cost effective method of minimizing their impact is proper management and planning of known floodplains. Floodplain management usually involves the adoption of land use regulations that limit human exposure to areas prone to flooding events. For more information on the Government’s approach to management of identified flood zones see the Policy for Flood Plain Management.

The Province, in conjunction with the federal government, has worked to reduce the human hardship and economic loss of floods through the Canada-Newfoundland Flood Damage Reduction Program (CNFDRP). Work under this program was carried out from 1981 to 1993. From 1993 to 1996 further flood studies were carried out under the federal-provincial "General Agreement Respecting Water Resource Management". This was a comprehensive agreement that included along with Flood Damage Reduction Program, groundwater management, watershed and water quality management, flow forecasting systems, water conservation economic, estuary and aquaculture management studies.

Work under the CNFDRP consisted of undertaking hydrotechnical studies, identifying and mapping flood risk zones and then implementing policies to limit future flood susceptible development in those areas. Flood risk areas are usually subdivided into two zones – the floodway and the flood fringe. The floodway is the portion of the floodplain where the risk of flooding is greatest and flood waters are deepest and most destructive. The outer portion of the flood zone, the flood fringe, is the area where the risk of flooding is lower and water is generally slower and less hazardous than the floodway. For more information, visit the federal government Flood Damage Reduction Program site.

Flood Risk mapping in Newfoundland and Labrador delineates the floodway as zones where floods have a return period of 20 years (5% chance in any year) and the flood fringe where the risk of flooding is once in 100 years (1% chance in any year). Flood risk areas have been mapped for 38 communities in the Province. These maps are used for public information, municipal planning, development control, and the setting of structural design criteria. All proposed developments in flood risk zones are evaluated against potential impacts on water resources, the structures themselves, and the surrounding areas.

To help support climate change adaptation, these flood risk mapping studies are being updated and new ones undertaken using climate change projections. This initiative is important for public safety and information, municipal and development planning, setting of structural design criteria, and flood response. This mapping will assist in regulating new developments in flood-prone areas, help minimize flood damage to properties and the environment, and restrict activities that could degrade water resources. A brochure is available outlining Government’s New Template for Climate Change Flood Risk Mapping.

In March 2012, Dr. Dean Djokic, ESRI, developed an ArcHydro Map-To-Map Implementation Workflow, a climate change geo-processing tool, to automate the generation of climate change flood risk maps. The basic concept is to take a “map of rainfall” and transform it to the “map of flooding”, thus Map To Map.

The table below contains all the studies and mapping associated with flood risk mapping in the Province. This includes:

  • Engineering studies completed as part of the flood risk mapping program.
  • AutoCAD drawings. These are digital versions of the large scale engineering maps, usually at a 1:2500 scale, used to accurately delineate the flood risk area
  • Public Information maps. These are used to show the approximate location of the flood risk area and provide the public with information on the Canada – Newfoundland Flood Damage Reduction Program

The information below consists of 580Mb of data with over 300 Adobe pdf, Jpg, and Tif files. These files contain scanned reports and associated maps and figures. Some map files can be quite large as the original maps were 60cmx90cm or larger.

All of the links below have been tested and if a file won't show on your computer try clicking the Refresh button on your browser. Otherwise, you can right-click on any link and select "Save Target As" to download a copy of the file to your computer for offline viewing.

 Study Area / Report Title

Date

 

Hydrotechnical Study of the Badger and Rushy Pond Areas

Volume 1: Main Report

Volume 2: Technical Appendices
Winter Monitoring Data

 

Mapping:

Badger AutoCad DWG Public Information Map  Small  Large  PDF   

Rushy Pond AutoCad not available Public Information Map Small  Large  PDF

River Ice Modelling Study - Exploits River at Badger (1995)

 

1985/07


Ice Analysis and Flood Risk Mapping Study of Bishop's Falls

Volume 1: Main Report

Volume 2: Technical Appendices

 

Mapping:

Bishop's Falls AutoCad not available  Public Information Map  Small  Large  PDF

 

1990/11

 

Brigus - Hydrotechnical report is not available

 

Mapping:

Brigus AutoCad not available   Public Information Map Small Large PDF


Flood Risk Mapping Study of the Codroy Valley Area

Volume 1: Main Report

Volume 2: Technical Appendices  

Mapping:

Codroy Valley AutoCad not available   Public Information Map Small Large PDF

 

1990/02

 

Flood Risk Mapping Study of the Conception Bay Area - Carbonear, Victoria, Salmon Cove, Whitbourne, Heart's Delight, Winterton, Hant's Harbour

Volume 1: Main Report

Volume 2: Technical Appendices

Figure 3_2.jpg  Figure 3_3.jpg Figure 3_4.jpg Figure 3_5.jpg

Figure 3_6.jpg  Figure 3_7.jpg Figure 3_8.jpg Figure 3_9.jpg

Figure 4_2.jpg  Figure 4_3.jpg Figure 4_4.jpg Figure 4_5.jpg

Figure 4_6.jpg  Figure 5_4.jpg  Figure 5_5.jpg  Figure 5_6.jpg

Figure 5_7.jpg Figure 5_8.jpg  Figure 5_9.jpg  Figure 5_10.jpg

Figure 5_11.jpg 

 

Mapping:

Carbonear AutoCad not available   Public Information Map Small Large PDF

Victoria AutoCad DWG   Public Information Map Small Large PDF

Salmon Cove AutoCad DWG   Public Information Map Small Large PDF

Whitbourne AutoCad DWG   Public Information Map Small Large PDF

Heart's Delight AutoCad DWG   Public Information Map Small Large PDF

Winterton AutoCad DWG   Public Information Map Small Large PDF

Hant's Harbour AutoCad DWG   Public Information Map Small Large PDF

 

 

1996/03

 

Historical Flooding Review and Flood Risk Mapping Study for Cox's Cove

Main Report and Appendices

Map.TIF

Mapping:

Cox's Cove AutoCad DWG   Public Information Map Small Large PDF

 

1988/12

Flood Risk Mapping Project Corner Brook Stream and Petrie's Brook

Main Report PDF (6.6 MB)

Appendices PDF (233.5 MB)

Mapping

Corner Brook ESRI GIS Shapefile ZIP file (7.0 MB)

AutoCad DWG ZIP file (9.6 MB)

Public Information Maps

1:20 and 1:100 AEP Floodlines PDF (45.0 MB)

1:20 and 1:100 AEP Climate Change Floodlines PDF (47.4 MB)

1:20 PDF (13.0 MB) and 1:100 PDF (13.0 MB) AEP Inundation Floodlines

2013/05

 

Hydrotechnical Study of the Deer Lake Area

Volume 1: Main Report

Volume 2: Physical Surveys and Field Program

Figure 1_2.jpg  Figure 2_1.jpg  Figure 3_1.jpg  Figure 4_2.jpg

Figure 4_5.jpg  Figure 5_1.jpg  Figure B_12.jpg  Figure B_13.jpg

Figure B_14.jpg

 

Mapping:

Deer Lake AutoCad not available   Public Information Map Small Large PDF

 

1987/08

Glenwood-Appleton Flood Study Report

Flood Study Report

Field Report

Bridge Schematic 1.TIF   Bridge Schematic 2.TIF

Map 1.TIF  Map 2.TIF

  

Mapping:

Glenwood-Appleton   AutoCad not available   
Public Information Map Small Large PDF

 

1989/11

 

Glovertown Flood Study Report

Volume 1: Main Report

Volume 2: Ice Calculations  

Field Report

Drawing1.TIF  Drawing2.TIF  Drawing3.TIF

Field Report Map 1.TIF

 

Mapping:

Glovertown AutoCad not available   Public Information Map Small Large PDF

 

1989/11

 

Flood Risk Mapping Study of Goulds, Petty Harbour and Ferryland

Volume 1: Main Report

Volume 2: Technical Appendices

 

 

Mapping:

Goulds AutoCad not available Public Information Map   Not available

Petty Harbour AutoCad DWG   Public Information Map Small Large PDF

Ferryland AutoCad DWG   Public Information Map Small Large PDF

 

1996/03

Flood Risk Mapping Project Goulds and Petty Harbour Area
Main Report (11 MB)
Appendices (446 MB)

Mapping:
Goulds and Petty Harbour Area ESRI GIS Shapefile ZIP file (10 MB)
AutoCad DWG ZIP file (46 MB)

Public Information Maps
1:20 and 1:100 AEP Floodlines (109 MB)
1:20 and 1:100 AEP Climate Change Floodlines (110 MB)
1:20 (19.4 MB) and 1:100 (19.8 MB) AEP Inundation Floodlines

2013/05

Flood Risk Mapping Update Project Goulds and Petty Harbour Area Incorporating the Dirty Brook Emergency Overflow Diversion in the Goulds (Map Sheets 14, 15, 19 and 20 have been updated from the 2013 Study)
Main Report (6.2 MB)
Appendices (209 MB)

Mapping:
ESRI GIS Shapefile ZIP file(22 MB)
AutoCad DWG ZIP file(66 MB)

Public Information Maps
1:20 and 1:100 AEP Floodlines (36 MB)
1:20 and 1:100 AEP Climate Change Floodlines (36 MB)
1:20 (4.8 MB) and 1:100 (5.0 MB) AEP Inundation Floodlines

2015/12
Town of Logy Bay – Middle Cove – Outer Cove Flood Risk Mapping Study
Volume 1: Main Report (10 MB)
Volume 2: Technical Appendices (A to O) (38 MB)
Volume 3: Technical Appendices (P to Q) (602 MB)

Mapping:
Logy Bay – Middle Cove – Outer Cove ESRI GIS Shapefile
AutoCad DWG

Public Information Maps
1:20 and 1:100 AEP Floodlines (252 MB)
1:20 and 1:100 AEP Ultimate Development Floodlines (251 MB)
1:20 and 1:100 AEP Climate Change Floodlines (251 MB)
1:20 (16 MB) and 1:100 (16 MB) AEP Inundation Floodlines

2012/08

 

Hydrotechnical Study of the Placentia Area Flood Plain

            Volume 1: Main Report

Volume 2: Field Report

Vol1_Figure 5_2_1.jpg    Vol1_Figure 5_2_2.jpg

Vol1_Figure 5_3_1.jpg    Vol1_Figure 5_3_2.jpg    

Vol1_ Figure 5_4_1.jpg   Vol1_Figure 5_5_1.jpg

Vol1_Figure 6_3_1.jpg    Vol1_ Figure 7_4_1.jpg

Vol1_Table 8_3_1.jpg     Vol1_Figure 10_2_1.jpg

Vol1_A-64.pdf

Vol2_Figure2.jpg   Vol2_Drawing1.TIF 

Vol2_Drawing2.TIF     Vol2_Drawing4.TIF

 

Mapping:

Placentia AutoCad not available   Public Information Map Small Large PDF

 

Assessment of the Effects of Development in the Bruley Area of Placentia (1987)

Figure SK_1.jpg Figure SK_2.jpg

 

Report on Reassessment of Economic Analysis for Flood Control Measures in Placentia (1988)

 Map.TIF

 

Report on Raising of Brestwork Along Riverside Drive in Placentia (1988)  
Map.TIF

 

1985/04

 

Historical Flooding Review and Flood Risk Mapping Study for Parson's Pond

Report

Map1.TIF Map2.TIF

 

Mapping:

Parson's Pond AutoCad DWG   Public Information Map Small Large PDF

 

1988/12

 

Flood Risk Mapping Study of Portugal Cove, St. Philips and Outer Cove

Volume 1: Main Report

Volume 2: Technical Appendices

 

Mapping:

Portugal Cove, St. Philips AutoCad DWG   Public Information Map Small Large PDF

Outer Cove AutoCad DWG   Public Information Map Small Large PDF
NOTE: Additional areas were mapped in the 2012 Logy Bay – Middle Cove – Outer Cove Flood Risk Mapping Study above

 

1996/03

Town of Portugal Cove-St. Philip’s Flood Risk Mapping Study
Main Report (37 MB)
Technical Appendices – Volume 1 (160 MB)
Technical Appendices - Volume 2 (600 MB)


Mapping:
ESRI GIS Shapefile ZIP file(3 MB)
AutoCad DWG ZIP file(55 MB)

Public Information Maps
1:20 and 1:100 AEP Floodlines (175 MB)
1:20 and 1:100 AEP Climate Change Floodlines (177 MB)
1:20 and 1:100 AEP Inundation Floodlines (78 MB)
1:20 and 1:100 AEP Velocity Distribution Floodlines (76 MB)
1:20 and 1:100 AEP Flood Hazard Floodlines (78 MB)
 

 

2015/05

 

 

Rushoon Flood Study Report

Hydrotechnical Study- Field Report (1985)

Map1.TIF

 

Volume 1: Main Report

Volume 2: Appendices

Vol1_Figure 1_1.jpg   Vol1_Figure 2_1.jpg

Vol1_ Figure 2_5.jpg   Vol1_ Figure 2_6.jpg

Vol1_Figure 3_1.jpg   Vol1_Figure 4_5.jpg

Vol1_Figure 4_6.jpg   Vol1_Figure 4_7.jpg

Vol1_Figure  5_2.jpg  Vol1_Figure 6_1.jpg 

Vol1_Figure 6_2.jpg   Vol1_Figure 6_3.jpg 

Vol1_ Figure 6_4.jpg  Vol1_Figure 6_5.jpg  

Vol1_Figure 6_6.jpg   Vol2_FigureIII_1.jpg  

Vol2_FigureIII_2.jpg 

 

Mapping:

Rushoon AutoCad DWG   Public Information Map Small Large PDF

 

Rushoon Supplementary Report (1987)

Figure 4_5.jpg Figure 4_6.jpg

 

Investigation of 1989 Winter Flood in Rushoon (1990)  

 

 

 

1986/06


Flood Risk Mapping Project for Shearstown/Bay Roberts Area
Volume 1: Main Report (151 MB)
Volume 2: Technical Appendices (471MB)

Mapping:
Shearstown ESRI GIS Shapefile
AutoCad DWG

Public Information Maps
1:20 and 1:100 AEP Floodlines (68 MB)
1:20 (68 MB) and 1:100 (68 MB) AEP Climate Change Floodlines
1:20 (2 MB) and 1:100 (2 MB) AEP Inundation Floodlines

2012/03

 

Hydrotechnical Study of the Steady Brook Area

Volume 1: Main Report

Volume 2: Technical Appendices

Vol1_Figure 1_2.jpg  Vol1_Figure 2_1.jpg

Vol1_Figure 2_2.jpg  Vol1_Figure 2_3.jpg

Vol1_Figure 2_4.jpg  Vol1_Figure 3_2.jpg

Vol1_Figure 3_6.jpg  Vol1_Figure 4_3.jpg

Vol1_Figure 4_4.jpg  Vol1_Figure 4_5.jpg

Vol1_Figure 4_6.jpg  Vol1_Figure 4_7.jpg

Vol1_Figure 4_8.jpg  Vol1_Figure 4_9.jpg

Vol1_Figure 5_1.jpg  Vol1_Figure B_16.jpg

Vol2_Figure 1.jpg  Vol2_Figure 2.jpg

Vol2_Figure A_1.jpg  Vol2_Figure F_2.jpg

 

Mapping:

Steady Brook AutoCad not available   Public Information Map Small Large PDF

 

Study of Possible Remedial Measures for the Steady Brook Area (1986)

Figure 1_2.jpg  

 

1984/10


An Evaluation of Flooding in Stephenville, Newfoundland

Volume 1: Main Report

Volume 2: Technical Appendices  

Figure 24.jpg  Figure 27 .jpg  Figure 28.jpg
Figure C_24.jpg  Figure C_26.jpg  Figure C_29.jpg
Map1a_1974.TIF  Map1b_1974.TIF  Map2a_1974.TIF
Map2b_1974.TIF

 

 

1975/12

 

Hydrotechnical Study of the Stephenville Area

Volume 1: Main Report

Volume 2: Technical Appendices

Figure 2_1.pdf  Figure 4_3.pdf  Figure 4_4.pdf

Figure 4_5.pdf  Figure 4_6.pdf  Figure 4_7.pdf

Figure 4_9.pdf  Figure 5_1.pdf  

 

1984/02

 

Flood Risk Mapping Study of Stephenville, Kippens and Cold Brook

Volume 1: Main Report

Volume 2: Technical Appendices  

Figure 5_2.TIF  Figure 5_3.TIF  Figure 5_4.TIF

Figure 5_5.TIF  Figure 5_6.TIF  Figure 5_7.TIF

Figure 5_8.TIF  Figure 5_9.TIF

 

Mapping:


Cold Brook AutoCad DWG 
Kippens (Gaudon's Brook) 
AutoCad not available
Stephenville  AutoCad DWG (2005) 

 

Public Information Maps
Cold Brook and Kippens (Gaudon's Brook) Small Large PDF

Stephenville Small Large PDF


 

 

1996/05

Hydrotechnical Study of Stephenville
Volume 1: Main Report 
Volume 2: Technical Appendices

Mapping:

Stephenville and Cold Brook ESRI GIS Shape file   AutoCad DWG

Public Information Maps
Stephenville 1:20 and 1:100 AEP Floodlines  1:100 AEP Climate Change Floodline
Cold Brook
1:20 and 1:100 AEP Floodlines  1:100 AEP Climate Change Floodline

 

 

 

2009/03

 

Hydrotechnical Study of the Stephenville Crossing And Black Duck Siding Area

        Volume 1: Main Report

        Volume 2: Technical Appendices  
Ice Simulation Model Documentation (ICESIM)

Main_Report_Figure_12-6_Page_153.jpg

 

Mapping:

Stephenville Crossing And Black Duck Siding AutoCad not available   
Public Information Map Small Large PDF

 

1988/05


Hydrotechnical Study of Stephenville Crossing/Black Duck Siding
Volume 1: Main Report (262 MB)
Volume 2: Technical Appendices (A to KK) (837 MB)
Volume 3: Technical Appendices (LL to GGG) (726 MB)

Mapping:

Stephenville Crossing
ESRI GIS Shapefile
AutoCad DWG

Public Information Maps
1:20 and 1:100 AEP Floodlines (326 MB)
1:20 (97 MB) and 1:100 (97 MB) AEP Climate Change Floodlines
1:20 (4 MB) and 1:100 (5 MB) AEP Inundation Floodlines

 

Black Duck Siding
ESRI GIS Shapefile
AutoCad DWG

Public Information Maps
1:20 and 1:100 AEP Floodlines (100 MB)
1:20 (100 MB) and 1:100 (99 MB) AEP Climate Change Floodlines
1:20 (5 MB) and 1:100 (5 MB) AEP Inundation Floodlines

2012/03

 

Flood Risk Mapping Study of Trinity South Area

Volume 1: Main Report and Appendices

 

Mapping:

Shoal Harbour AutoCad DWG and Hodges Cove AutoCad DWG   
Public Information Map Small Large PDF

Hickmans Harbour    AutoCad DWG   Public Information Map Small Large PDF

 

1995/04

 

Flood Risk Mapping Study of the Trout River Area

            Volume 1: Main Report

Volume 2: Technical Appendices

Background Data and Survey and Monitoring Report

 

Mapping:

Trout River AutoCad not available   Public Information Map Small Large PDF

 

1990/05

 

Hydrotechnical Study of the Waterford River Area

            Volume 1: Main Report

Volume 2: Technical Appendices

 

Mapping:

Waterford AutoCad not available   Public Information Map Small Large PDF

Updated Flood Extents for the Waterford River October 1998 (6.5 MB)
Updated Flood Extents for the Waterford River October 1998 AutoCAD ZIP file (6.2 MB)

Updated Flood Extents for the Waterford River Mount Pearl Revisions 2001 2004 ZIP file (0.08 MB)

 

 

 

1988/06

 
Last Updated:
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