Welcome to www.nbmca.ca

Spring 2019 Flood Event

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.

Spring 2019 Flood Event

NBMCA issued a Flood Warning on April 21 for waterways in our jurisdiction and it remains in effect.  
The combination of snowmelt, precipitation and already high water levels in area streams and rivers have created flooding conditions throughout the watersheds within NBMCA's jurisdiction (see map). 
(Please note NBMCA does not provide flood forecasting for the Parry Sound District.) 
Updates on the status of the flood forecast are posted on our website under
Spring 2019 Flood Event Updates and the "News" section below.

For updates on the status of the Flood Warning, you can also follow us on  Facebook.   Twitter.   Instagram.

If you think that your property may be at risk of flooding, please contact your municipality.
If you live in an unorganized township in Nipissing District, contact the Ministry of Natural Resources and Forestry District office at 705-475-5529.   

Please share photos of conditions in your area using #NBMCAFlood on all social media and include the location of the photograph.

Thank you. NBMCA Communications & Outreach.  705-474-5420

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?  


Levels in Lake Nipissing rising; Mattawa River slowly trending downward

May 24, 2019

(North Bay May 24, 2019 – 4 pm)   Water levels on Lake Nipissing are rising again from yesterday’s rainfall and are expected to continue to rise. The Ottawa River at Mattawa has resumed its slight downward trend following a rise in response to recent rainfall.  Several weather systems are moving into the area over the next five days, prompting the North Bay-Mattawa Conservation Authority to extend its Flood Warning to May 29.  For a full update visit the Spring 2019 Flood Update page.


Levels Stable Today but Vulnerable to Forecast Rain

May 22, 2019

(May 22, 2019 – 1 pm)    Water levels on Lake Nipissing and the Ottawa River appear to be stabilizing following a rise after last weekend’s rainfall.  Both are still vulnerable to inflows and additional rainfall.  30mm rain is forecast for the next two days, prompting the North Bay-Mattawa Conservation Authority to update and extend its Flood Warning to May 27.  NBMCA also provides updates on the 2019 Flood Event Update page. 


Conservation Areas and Trails Open for Season

May 17, 2019

NBMCA’s 15 Conservation Areas and Trails Open for Victoria Weekend               

The 15 conservation areas and trails owned and managed by the North Bay-Mattawa Conservation Authority are opened for the Victoria Day weekend, including the pedestrian underpass on the Kinsmen Trail between Oak St. and Stanley St., with the exception of those listed below.  For more information, directions and trail maps of NBMCA conservation areas and trails, as well as updates on trail closures or service disruptions, visit www.nbmca.ca.



Flood Warning Extended and Updated

May 16, 2019

(May 16, 2019 – 11:30 am)    Water levels on Lake Nipissing continue to rise, affecting the lower reaches of the La Vase River, Parks Creek, and Jessups Creek, and the Ottawa River remains extremely high at Mattawa.  Substantial precipitation is forecast through this week prompting the North Bay-Mattawa Conservation Authority to update and extend its Flood Warning to May 22.


Technology and the arts meet nature in Laurier Woods with launch of Forest Talk Radio May 25

May 15, 2019

A unique blend of story telling, science, and environmental education kicks off Saturday, May 25 at 9:45 am with the launch of Forest Talk Radio, a smart phone application you can download and listen to while you walk the orange and white trails at Laurier Woods Conservation Area.


2018 Year in Review



Register today for the 43rd Annual Mattawa River Canoe Race - July 27, 2019



Want to see more NBMCA videos?  Subscribe to our YouTube Channel!