Harvie Passage Low Water Channel (LWC) was developed as a safe passage through the Western Irrigation District (WID) weir in the heart of the City of Calgary, adjacent to Pearce Estate Park. The original development was completed in 2012, but unfortunately the 2013 flood destroyed most of the infrastructure. There was weakness in the original development, whereby safe passage through the weir was problematic. The redevelopment of the site addressed these concerns with a clear directive to make the Low Water Channel safer for all river recreational use. Although the objective was safe through passage, there was a secondary objective to develop the site into a Whitewater Park. The Government of Alberta (GOA) was comfortable that both objectives could be met.
It was unfortunate that the interests of the fishing community and specifically the use of drift boats were not considered in the early stakeholder consultation process. Bow River Trout Foundation (BRT) engagement with the consulting engineers on the Harvie Passage Project did not take place until 2016, therefore there was little time to make concessions to the design of the LWC to meet the specific needs for drift boat passage.
BRT concerns are centered on the width of each drop chute throughout the LWC. A drift boat with oars extended is 6.50 meters in width and would have difficulty navigating each LWC drop. Although changes could not be built into the design to meet additional width, it was felt that navigation through the LWC would be possible provided there was a straight run at each drop and no rocks to avoid on entry and exit from each LWC chute. This concept was tested in July 2017 where a low-profile drift boat skiff navigated the LWC with little difficulty.
Access to Harvie Passage was limited to hand launch activities until August 29, 2018 when a temporary public boat ramp was opened at Shouldice Park that made trailered-boat use of the upper city reach of the Bow River possible. This new access gives an additional 22 Km of river to float and fish from a drift boat, including the traverse of Harvie Passage by access to the LWC. Unfortunately, several enhancements to the design of the LWC following the 2017 test days have created potential hazards. The following photos of LWC Drop 4 illustrate modifications that changed the stream flow to the left of the channel.
It is now difficult for a drift boat with oars extended to navigate Drop 4 and change direction between the two rock deflections on the left side of the channel. There have been incidents where drift boats have hit these rocks, that suggest changes in the design may be needed. Alberta Environment & Parks is aware of these concerns and will monitor the situation next year.
In the meantime it is advisable to scout out the Low Water Channel before taking a trip.
A float through Harvie Passage Low Water Channel is only possible when the Western Irrigation District water sluice-gates are closed from April to early October. It is hoped that this can be extended until the end of October.
Drift boat use of the HP Portage Channel above the weir is difficult under low flow conditions. It’s too shallow, not wide enough and has very little flow. It needs to be dredged.
Harvie Passage has been a very popular destination water park this year with unexpected use by body and tube floaters. This will only increase next summer constituting even more caution by paddlers and drift boats.
Twenty drift boats ventured out on the Bow River Saturday, September 29, 2018 on a cold snowy day to participate in Bow River Trout Foundation’s 2018 One Fly Tournament. The morning meet and evening reception were held at the Toad & Turtle on 130 Avenue SE, Calgary.
Awards were presented for: Most fish caught – Sean Britt (11 fish) ,Brown Trout – Anne Jurgens ( 22″), Rainbow Trout – John Roggensack – (22″)
We would like to recognize our sponsors and the Angling Outfitters and Guide Association of Alberta for their support
Bow River Trout Foundation is pleased to announce the appointment of Patricia Hughes to the position of Executive Director. Patricia brings to the foundation a wealth of experience in project management and engagement. Most recently Patricia worked for Teck Resources as Senior Advisor, Community Relations, and previously for Devon Energy in a similar capacity.
Patricia received a BA in Cultural Anthropology from the University of California, Santa Barbara, CA and an MA, in Latin American Studies, from the University of New Mexico.
In the position of Executive Director, Patricia will lead the advancement of the Bow River Trout Foundation in its commitment to the Blue Ribbon Bow River Fishery.
Bow River Trout Foundation was established in 2016 with an objective to “Advocate and Support the Bow River Fishery”. With a broad base of membership and local fishing community support, Bow River Trout Foundation has engaged with government agencies to recognize the importance of the Bow River fishery as a world class trout fishery and as a local recreation venue. Our recent initiative to revitalize the Policeman’s Flats river access site downstream of the City of Calgary was completed this year.
President, Peter Crowe-Swords comments: “The addition of Patricia Hughes to the position of Executive Director is an important step to meet our commitments to the Bow River fishery. Bow River Trout Foundation has accomplished a considerable amount in a relatively short period of time and now we have the opportunity to reach out to enhance a very valuable resource for future generations”.
After the success of the inaugural tournament in 2017 we would like to invite you to participate again this year. The 2018 One Fly Tournamentwill take place on Saturday, September 29, 2018. Anglers are invited to actively participate in the event, or enjoy a day on the river that will also support Bow River Trout Foundation’s initiatives to “Advocate and Support the Bow River Fishery”.
This year’s event will offer the following registrations:
Guided Trip – $600.00 will buy a fully guided boat for the day (up to 2 anglers). Registration closes September 23, 2018
Self-Guided Trip – $300.00 will allow participation with a self-provided boat (up to 3 anglers) Registration closes September 26, 2018
The Event Format:
A morning meet up to distribute lunches and facilitate final registration will be held at the Toad and Turtleparking lot off 130th Avenue SE between 7:30 and 8:30 AM. A reception for participants and the angling community at large will be held at the Toad and Turtleafterwards, beginning at 5:00 PM.
For anglers competing in the tournament, awards will be presented at 7:30 PM. In order to qualify for awards participants must submit pictures and catch charts either in person or by email/text photo of the charts prior to 6:30 PM. Only participants present at the time of the awards presentation are eligible for prizes.
An Update of the original article published earlier this year
The previously reported Bow River Fish Populations Reportdocumented the historical fish population surveys from 1980 to 2007 which at that time supported a sustainable fishery. The recent retrospective analysis of Bow River Trout Population Surveys by University of Calgary researcher Chris Cahill,entitled, Multiple Challenges Confront a High-Effort Inland Recreational Fishery in Decline has indicated that rainbow trout populations are in trouble. Data analysis showed that the Rainbow Trout populations may have declined by as much as 50% over a ten-year period from 2003 to 2013. The research indicated that:
“Despite uncertainty in both abundance and trend estimates, these results indicate that Rainbow Trout in the LBR (Lower Bow River) likely declined during both assessment periods. The median posterior estimates for a 10-year standardized population trend were -43.0% using Trendestimated from the 2003-2008 data, and -50.0% using Trend estimated from the 2003-2013 data. Since the size criteria for tagged fish (≥ 250 mm FL) corresponds approximately to the sizes of mature Rainbow Trout (Rhodes 2005), the estimated decline likely represents a large reduction in the number of mature individuals in this population. For example, The Committee on the Status of Endangered Wildlife in Canada (COSEWIC) guidelines state that “in cases where the declines or its causes are unknown” a decline in the number of mature individuals ≥ 30% or ≥ 50% over a period of ten years would qualify a population as “threatened” or “endangered,” respectively (COSEWIC 2018). Rainbow Trout in the LBR are naturalized (Gilmour 1950), and hence do not qualify for listing as per COSEWIC guidelines; nonetheless, these criteria demonstrate the magnitude of the decline documented here”.
Recent stakeholder engagement with Alberta Environment & Parkshas addressed an initiative to stop the decline in Bow River trout populations and hopefully see improvements in the future.
The first step to a recovery program is to establish a baseline fish population index that will guide fishery management policy change.
During the weeks of September 10 and 17 AEP will conduct fish populations surveys on the Bow River using the electro-shocking technique.
Bow River Trout Foundationis committed to this process and believes that the first step should be to conduct Bow River fish population monitoring on a regular basis that will give an index for the “The State of the Bow River Fishery”
The State of the Bow River Fishery
The Blue Ribbon Bow River needs your help.
Your donation will assist BRT initiatives to monitor fish population dynamics and advocate for fishery management change.