Offices and Contacts

1.877.300.4800

  • About Us
    • Vision & Values
        Environmental impact Assesments

        It is our vision at DST Consulting Engineers Inc. to build one of the best places to work by focusing on our people, focusing on a culture of innovation and collaboration, and focusing on high-quality project management....

        Read More
    • Our History
        Our History

        Dominion Soil Investigations was established in Toronto, Ontario in 1956 by Aron Bonca, a self-made entrepreneur. Arriving in Canada with a few cents in his pocket, Aron successfully acquired the drills of a bankrupt geotechnical ...

        Read More
    • Leadership
        The Team

        DST is a 100% employee owned company that is governed by a Board of Directors comprised of both internal and independent board members. The Board of Directors is responsible for establishing DST’s mission, vision and values with strategic oversight...

        Read More
    • Awards

        From innovation techniques to environmentally friendly solutions, the team at DST has won a variety of awards that reflect the achievements of our company and employees...

        Read More
    • Health & Safety

        Commitment to workplace health and safety forms an integral part of our organization from the Board of Directors and President through to all DST employees...

        Read More
  • Sectors
    • Mining
        Mining Service Providers

        DST has been working in the mining industry for almost 40 years as engineers, scientists and contractors. Canadian offices are in Ontario, Manitoba, Alberta and...

        Read More
    • Energy
        Energy Engineering Services

        DST provides a wide range of environmental and engineering solutions to hydro, wind and solar power generation and transmission line clients. Our integrated...

        Read More
    • Government
        Government

        DST has been delivering environmental analysis and permitting, engineering and design, and building environmental services to all levels of government for over...

        Read More
    • Infrastructure
        Infrastructure Project Engineering

        DST has extensive experience in the practical design and construction of various types of infrastructure projects, particularly in remote locations requiring ground improvement...

        Read More
    • First Nations
        First Nation Community Environmental and Geotechnical Services

        DST has extensive experience working with First Nation communities and organizations in Canada in the environmental and geotechnical service areas. Our team understands the importance...

        Read More

  • Services
  • Monitoring Instrumentation
  • Careers
  • News
    • Community
        Community

        Corporate responsibility is a top priority for DST Consulting Engineers and we make every effort to give back to the communities in which we operate. We understand that our continued support of local events, programs and charities contribute not only to the success and wellbeing of the community, but also the long term success of our business. Together, we are working with community partners to invest in our shared future.

    • DST Newsroom
        DST Newsroom

        DST is a nation-wide, employee owned company with over 40 years of experience. Our ‘product’ is our knowledge, our greatest asset is our brain power, and our business is providing a range of comprehensive, results-driven services to meet the special demands of our clients.

        Read More
  • Contact Us
Home>> Projects>> Hydrologic Hydraulic Modelling Black Sturgeon River

Projects Detail

Snart Hydrologic & Hydraulic Modelling | Black Sturgeon River

DST's environmental consulting team carried out hydrologic and hydraulic modelling of two areas of the Black Sturgeon River located around Thunder Bay, Ontario.

.DST completed a project for the Ontario Ministry of Natural Resources (MNR) to do hydrologic and hydraulic modelling of two reaches of the Black Sturgeon River (100 km northeast of Thunder Bay, Ontario).  The first, at an existing dam and the second, downstream of a proposed sea lamprey control dam immediately downstream of Eskwanonwatin Lake.
.
The Black Sturgeon Dam was constructed on the river as part of these historical logging activities and does not currently meet the Ontario Dam Safety Guidelines (OMNR 2011). As a result of a recent Environmental Assessment and public comment period, a number of options pertaining to the future use of the dam have been developed.
.
The purpose of the modelling was to investigate the potential water level changes in the Black Sturgeon as a result of proposed changes in management of dams on the river, including removing the existing dam, altering the number of logs in the existing dam and building a new dam downstream of Eskwanonwatin Lake.
.
Using a combination of elevation data supplied by OMNR, new survey data and available geographic information system data, a Hydrologic Engineering Centers River Analysis System (HEC-RAS) model of the river was developed and run for ten (10) scenarios at both the seven day low flow with a 20 year return period and the 50 year return period high flow. These two discharge rates were calculated for the two reaches using Environment Canada flow data from 1970 to 2010 in conjunction with the hydrology computer programs Low Frequency Analysis (LFA) and Consolidated Frequency Analysis (CFA). This modelling was used to predict the effects of these changes to the river and to assist the OMNR making a final decision on whether to remove or retain the existing dam structure.
.
Sediment samples were also collected above and below the existing dam, in order to provide information regarding sediment quality and to evaluate the potential effects on the river as a result of sediment transport following the removal of the dam. Laboratory analysis of sediment included; metals, nutrients, polychlorinated biphenyls, pesticides/herbicides, and polycyclic aromatic hydrocarbons.
.
DST conducted further hydrological modelling at the  to assess if and when critical velocities would occur which would preclude the movement of walleye (Sander vitreus) and lake sturgeon (Acipenser fulvescens) through the open sluice gates in the event that all logs were removed.  The potential effects that the resulting velocities could have on the spawning potential of walleye and lake sturgeon was also assessed to evaluate if the high velocities predicted in the model would prevent the movement of these fish species through the dam location.
.
 Black Sturgeon River located 100 km northeast of Thunder Bay, Ontario
.
  Back

Community Events

Marketing Intern Farewell

For those of you at DST who I have not met, I am sorry that our paths never crossed. I have been working every Friday out of the Thunder Bay…


Read More

DST at Algonquin College

On April 3rd, DST Consulting Engineers attended the Algonquin College  Professional Networking Event in Ottawa. The event gave students an opportunity to connect with environmental professionals and industry leaders from…


Read More

Environmental Design with Youth Fusion

This past week, DST’s Kris Tuuttila has continued his mentorship through Youth Fusion/Fusion Jeunesse. As an environmental design mentor, Kris has provided guidance to students at Ogden Community Public School…


Read More

Introducing our new Building Sciences Division

We are excited to announce our newest division: Building Sciences. This new service line includes a variety of building envelope and structural engineering services. Under the leadership and guidance of…


Read More

Thunder Bay vs Office Flood

“Always be prepared but expect the unexpected.” Nothing can stop our Thunder Bay team – even unexpected flooding!  Luckily, we are experts in emergency response who know flood relief services.…


Read More

Blasting Videos

Loading the player...
Our qualified blasting engineers design more than just rock-cuts and mines. They take down structures! Reinforced concrete buildings, smokestacks, steel tanks…

View More



Top

Home

About Us

Sectors

Services


© 2019 Geotechnical Engineering Services | Environmental Consulting Services - Dstgroup.com. All Rights Reserved.
Internet Marketing by TechWyse
TechWyse