Navigation Protection Act (NPA) - Scheduled Waterways

Owned by Diego Cesa de Meira (Unlicensed)
Jul 31, 2019
2 min read

Description

The Navigation Protection Act (NPA) is the result of the 2012 amendments to Navigable Water Protection Act (NWPA). The List of Scheduled Waters includes the busiest waterways in Canada for which regulatory approval is required for works that risk a substantial interference with navigation. The Navigation Protection Program (NPP) refers to “scheduled” and “non-scheduled” navigable waters to indicate waterways that are or are not listed on the schedule.

When a proponent submits a project for approval, whether it is in the vicinity of scheduled waters affects the owner’s obligation and option. Using this overlay, the NPP Officer can decide if the project requires further review and assessment.

Originator

  1. Transport Canada, Programs Group, Navigation Protection Program.

  2. Canada Open Data

  3. TC Smart Maps

Use Cases

  1. As an NPP Officer I want to be able to validate if the project is near an NPA scheduled waterways so that I proceed with the project review.

Source(s)

Description

Source

Format

Date

Update Frequency

Metadata

Cost

Link

Remarks

Description

Source

Format

Date

Update Frequency

Metadata

Cost

Link

Remarks

Scheduled Waterways

TC Smart Maps
Canada Open Data

SHP
TAB
KML

2015

As needed

N/A

Free

EGIS Data Folder: NPAScheduledWaters_Waterbody.gdb.zip
NPAScheduledWaters_Markers.gdb.zip
Open Data (50K NHN)

-Use preprocessed GDB file as provided.
-Manually extracted from Open Data National Hydro Network 1:50K based on NPA Documentation

Remarks

  1. EGIS Data Folder: \\ncras382\Application Source Files\EGIS\Smartmap Files\

Process for EGIS integration

Waterways Extraction:

  1. NPA Scheduled Waterways hydrography extraction is a labour intensive process.

  2. In Google Earth, National Hydro Network (NHN) 1:50,000 was used as a base and polygon boundaries were drawn to cover the extent of each segment of the waterway described in the NPA document.

  3. In FME, using the Clipper transformer, with the digitized polygon as clipper and the NHN as clipee, lakes and rivers were extracted.

  4. Delete any excessive tributaries or features not included in the document.

  5. In FME, NPA Waterways Start and Stop which showed the extent of lakes and rivers were transformed as points.

  6. For display at a smaller scale, 1:2M Hydrography which matched the NPA Scheduled Waterways were extracted.

  7. These formed the complete NPA Scheduled Waterways dataset.

  8. The extracted data is exported as SHP, GDB or KML as required.

TC Smart Maps:

  1. Not all GIS applications can consume KML file directly due to its unique data structures such as networklinks, folders, models etc.

  2. Please contact Lawrence Chong, Digital Services Directorate for TC Smart Maps KML dataset and format translation.

  3. TC Smart Maps KML link: \\tc.gc.ca\tcgis\GISData\Google Mashup\Marine-NWP\NPA-ScheduledWaters\NPA-ScheduledWaters.kmz

Customization:

  1. Schema transformation: Not required

  2. Denormalization: Not required

  3. Value coding: Not required

  4. Attribute renaming: As required to improve readability

  5. Attribute removal: It is highly recommended as some fields are unnecessary, this will also reduce file size and improve performance

  6. Geoenrichment: Feature symbolization by theme is recommended

  7. Format translation: Not required

  8. Language translation: As required

  9. Update frequency: As specified.