Welcome to NBMCA.ca


North Bay-Mattawa Conservation Authority

NBMCA was founded in 1972 by the Province of Ontario and the NBMCA’s 10 member municipalities.
As a community-based, non-profit environmental organization, NBMCA is dedicated to
conserving, restoring, developing and managing renewable natural resources on a watershed basis.
NBMCA is one of 36 Conservation Authorities who are members of Conservation Ontario.

Be a Steward!

Prevent Erosion and Runoff!

Planting trees and shrubs along the shoreline or stream bank at your home, farm or cottage is one of the ways you can help protect and preserve water quality. 


Development and On-site Sewage

Permits are one tool for balancing human needs with the needs
of the natural environment, protecting people and property
from natural hazards.


Integrated Watershed Management

From water quality monitoring and flood forecasting to drinking water source protection, NBMCA uses science to make watershed management decisions. 

Get Outside!

Trails & Events

Looking to hike, bike, or ski?
Paddle a historic canoe route?
Explore our natural heritage?
Take part in an environmental festival or special event?  


NBMCA Delivers Essential Service During Stay-at-Home Order

April 13, 2021

During the Provincial Emergency and Stay-at-Home Order issued by the province on April 8, 2021, the North Bay-Mattawa Conservation Authority will continue to deliver programs that have been deemed an “Essential Business/Service” by the Ontario/Canadian government. 


Chippewa Creek Project will Reduce Flood Risk, Enhance City's Active Transportation Network

July 29, 2021

(North Bay, July 29, 2021) The North Bay-Mattawa Conservation Authority will begin work next week on the remediation of 45m of Chippewa Creek at Oak St and reestablish the Kinsmen Trail link across the creek with a new pedestrian bridge.

“The benefits to the residents of North Bay are two-fold; the channel work will repair streambank erosion and help alleviate upstream flood hazards.  The new pedestrian bridge will provide a significant enhancement to the City’s active transportation network,” said Dave Mendicino, Chair of the North Bay-Mattawa Conservation Authority (NBMCA).


NBMCA Issues Flood Outlook

July 24, 2021

A wave of thunderstorms are forecast by Environment Canada to bring 30-50mm of rain, possibly more in some areas, this evening and overnight adding to watercourses that are already at or above normal for this time of year. These conditions have prompted the North Bay-Mattawa Conservation Authority to issue a Watershed Conditions Statement – Flood Outlook for the watershed.


Flood Outlook Upgraded to Flood Watch for Chippewa Creek

July 24, 2021

The Flood Outlook Statement issued this afternoon by the North Bay-Mattawa Conservation Authority has been upgraded to a Flood Watch for Chippewa Creek due to significant rainfall.  The Flood Outlook statement remains in effect for the remainder of the watershed.


NBMCA Issues Flood Warning for Chippewa Creek

July 19, 2021

Significant local rainfall amounts have been received around the City of North Bay due to the ongoing thunderstorms in the area, prompting the North Bay-Mattawa Conservation Authority to issue a Flood Warning for Chippewa Creek and a Water Safety Statement for the remainder of the watershed.


The 2021 Mattawa River Canoe Race has been cancelled due to COVID-19. Here's hoping we're back in 2022! 

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