Throughput and capacity

Section updated annually (mid-April)

Select units:
Key Point Trends
Key Point Description

Note: The physical capacity of a pipeline is based on many factors such as the products being carried, direction of flow, pipeline pumping capacity, and maintenance work or other pressure restrictions. The actual physical capacity of the pipeline may, at times, be higher than the assumed operational capacity stated here.

Dashboard instructions
  • Click on a key point button above the chart & map to view traffic at a different location. The map shows approximate locations on the pipeline where throughputs & capacity are recorded by the pipeline operator.
  • Click and drag your mouse on the area chart to zoom into the desired date range. Click on the Reset Zoom button to reset the full date range.
  • Click on the chart legend items below the chart to remove & add sections of data as required.
  • The key point trends are calculated using quarterly average traffic at the key point. Natural gas throughput trends are displayed year over year (last full quarter of data compared to the same quarter last year). Crude oil and liquids key point trends are displayed quarter over quarter (last full quarter of data compared to the previous quarter).

Note: The five-year average is calculated for natural gas key points using the total throughput across all trade types and direction of flows. For bi-directional key points (both export and import) the throughput is displayed for both directions, instead of the five-year average.

Source and description

Data Source: Open Government

Description: The above dashboard displays pipeline throughput and capacity at key point(s) along the system. Where possible, the five-year average and five-year range for throughput is shown with the current year throughput to better highlight the trends. For pipeline key points with a defined location, a map is displayed next to the graph showing the approximate key point location where pipeline throughput and capacity are recorded.

Tolls (in progress)

Section updated November 2022

System Tolls Description

Line 9 International Joint Tolls (IJT) are inclusive of service on the Enbridge Mainline system. Line 9 IJTs apply to crude oil that is transported from Canadian Mainline receipt points in western Canada, across international boundaries near Gretna, Manitoba, and Sarnia, Ontario, to Line 9 delivery points at either Nanticoke, Ontario, or Montreal, Quebec. The Committed IJTs are determined using the transportation charges on the Enbridge Mainline and several additional surcharges. The Uncommitted IJTs are set at a premium such that it does not exceed 122% of the Committed IJT for the same path.

Line 9 local tolls apply to transportation service from Sarnia, Ontario, to Montreal, Quebec.