Standard Mitigation Measures for Bridge Repair or Replacement
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Fisheries and Oceans Pêches et Océans
Canada Canada
Fisheries and Oceans Canada-Saskatchewan District
Standard Mitigation Measures for Bridge Repair or Replacement
Version 1.0
Fisheries and Oceans Canada (DFO) is responsible for protecting fish and fish habitat in
Saskatchewan. Under Section 35 of the Fisheries Act no one may carry out a work or
undertaking that will cause the harmful alteration, disruption or destruction (HADD) of fish
habitat unless it has been authorized by DFO.
Bridges are typically a preferred type of stream crossing design compared to culverts because
they have less impact on the natural hydrology, channel processes and don’t impede fish
migrations. DFO-SK currently has two operational statements in place that pertain to
bridges. These include the Clear-Span Bridge Operational Statement and the Bridge
Maintenance Operational Statement. However, other routine maintenance and structural
repairs as well as non-clear span bridge replacement projects can also be low risk to fish and
fish habitat if undertaken correctly and at the appropriate time.
To ensure appropriate protection for fish and fish habitat is considered during bridge repair
or replacement projects, DFO-SK District has developed this Standard Mitigation Measures
for Bridge Repair or Replacement document. If the conditions and mitigations outlined in
this document can be followed or if the work is undertaken when the waterbody is dry or
frozen to the bottom, DFO- SK District considers your proposed work to be low risk to fish
and fish habitat and further review or approval is not required.
Typical activities covered under this document may include:
Replacing an existing multi-span bridge with a new multi-span bridge which has the
same or fewer number of in-water piers/pilings.
Undertaking repairs or reinforcement to existing bridges such as:
o removal of bridge deck pavement;
o timber floor or wearing plank replacement;
o addition of new stringers;
o replacement or repair of instream piers/pilings or their components (e.g.,
scour planks, timber pier caps, sheathing planks, sway-bracing, stub pile
installation and replacement of pile ties behind the abutments);
o replacement or repairs to abutments/wing walls or their components (e.g.,
knee bracing, backing planks, cleats and anchor rods or deadmen);
o repair or replacement of bearings;
o raising or re-leveling bridges; and,
o repair of spalled concrete.
Installing granular filter blankets and/or clean rock rip-rap along the spill-through
slopes in front of and/or adjacent to bridge abutments.
.../2This Standard Mitigation Measures for Bridge Repair or Replacement document is only
applicable to Saskatchewan and to those projects that can meet all of the following
conditions:
1. If the project is a bridge replacement, the existing bridge will be replaced with a new
bridge at the same location and the new bridge will have the same number or fewer
piers/pilings than the old bridge.
2. There is no channel realignment work required as part of the project.
3. The project does not require instream site isolation.
4. If pour-in-place concrete work is required, it will be completely contained so that raw
concrete cannot enter fish habitat.
5. All new, temporary and replacement piers/piles will be installed by working from
shore, the existing bridge or a temporary piling-supported bridge deck. No infill-type
working platform is allowed to be built in the stream channel.
6. All temporary and old pilings located in the stream channel will be completely
removed or cut off at or below the streambed elevation.
7. Any rock armoring material used to stabilize the stream banks must be clean so it
does not introduce sediment into fish habitat, limited to areas within the road right-of-
way (ROW) and installed such that it does not constrict the channel width.
8. Any work taking place above the high-water mark (e.g., side slope repair, site
grading, access road works, etc.) will not result in any shoreline alteration beyond the
existing disturbed area or ROW.
9. Any temporary bridge or ford crossings used to move heavy equipment across the
stream or to bypass vehicle traffic around the work site will be constructed as per the
Temporary Stream Crossing Operational Statement or the Ice Bridges and Snow Fills
Operational Statement.
10. No in-water work is proposed during the Saskatchewan In-Water Closed
Construction Timing Windows for your waterbody.
If you cannot meet all of the above conditions you should contact the DFO office in your
area to discuss your proposal. If you can meet all of the conditions listed above as well as
adhere to the standard mitigation measures below and you intend on this document to guide
your project without further review by DFO, a Notification of Intended Use form must be
completed and sent to DFO at least ten (10) days prior to starting the work. A copy of the
Notification of Intended Use form is included as an attachment at the end of this document.
.../3Standard Mitigation Measures
1. The in-water work must be scheduled so it does not take place during the
Saskatchewan In-Water Closed Construction Timing Windows to protect spawning
fish, their incubating eggs and larval life stages (attached).
2. All dirt and other loose debris will be removed from the old bridge deck (i.e., not
swept or pushed into/onto the watercourse) prior to work on the deck or removal of
the original structure.
3. All areas requiring the clearing of vegetation will be clearly delineated in the field at
the start of the project (i.e., flagging tape, construction fencing, etc.) to ensure there is
no unnecessary disturbance to the riparian vegetation or stream bank. Every effort
should be made to conserve as much natural vegetation growing along the shoreline
as possible. Vegetation adjacent to the ROW should be left unaltered.
4. Whenever possible, all work will be done from the existing bridge deck or road and
not from the banks of the waterbody. Impacts to the stream banks will be kept to the
area within the road ROW.
5. Any cutting or drilling of treated timber will take place outside the wetted width of
the stream or be effectively contained using measures such as barges or shrouding to
avoid having any of this material fall into the water.
6. Sandblasting and jack-hammering is to be effectively contained, collected and
disposed of off-site to prevent any materials from entering the water.
7. Areas used for stockpiling construction materials or storing equipment will be well
back from the edge of any waterway, and in areas which have already been disturbed
or are devoid of vegetation.
8. All debris from construction will be removed from the site upon completion of the
project. Any garbage encountered on the shoreline during construction (e.g., tires,
pieces of concrete, etc.) should be removed and disposed of in a landfill or other
appropriate disposal site.
9. No raw concrete, wash water or chemicals used for concrete treatment will be
allowed to enter the watercourse during the project.
10. Any new cobble/gravel, rip rap or other materials used for construction will be
obtained from off-site and not from below the average high water level of any
waterbody or watercourse that functions as fish habitat.
11. During land clearing or near water work with heavy equipment, timing of the work
should avoid periods of predicted precipitation and if it does rain during the project,
work should be stopped if necessary to prevent the introduction of sediment laden
water into the waterbody from the work area.
.../412. All materials (rock, gravel, etc.) used for the slope repair or stabilization are to be
clean and free of silt, clay and other contaminants. Material used for stabilizing the
disturbed areas must not introduce additional sediment into fish habitat.
13. Any permanently removed materials and/or spoil will be disposed of above the high
water level, and located and stabilized so that they do not re-enter any fish habitat.
Spoil includes any excavated material such as sediment, rocks, vegetation and woody
debris.
14. Appropriate precautions will be taken to ensure that deleterious substances do not
enter fish habitat:
a. Appropriate precautions will be taken to ensure that deleterious substances do
not enter fish habitat: equipment operating near any fish bearing waters will be
properly maintained, in sound mechanical condition and free of any fuel, oil,
hydraulic fluid, or coolant leaks. Cleaning, fueling and servicing of equipment
will be conducted in an area from which spills or wash water will not enter fish
habitat.
b. All machinery will be equipped with emergency spill kits large enough to
contain possible spills or leaks of oil, fuel, hydraulic fluid or coolant during the
project. The operators of the equipment will be familiar with how to properly
use the spill kits in the event of an emergency.
c. Any spilled materials will be cleaned up as soon as possible and disposed of in
an environmentally safe manner. Spilled material will not be left where it may
enter any waterbody or watercourse. Where necessary, containment such as
pans or spill blankets will be used to prevent spills or leaks from entering fish
habitat.
d. If these measures are insufficient for effective control, it is the responsibility of
the proponent to implement alternative measures as required for effective
deleterious substance control. Any intentional or unintentional deposit of any
type of deleterious substance into fish habitat is a violation of subsection 36(3)
of the Fisheries Act. The spill report number in Saskatchewan is 1-800-667-
7525.
15. Any soils that are exposed and/or have significant potential for sediment delivery to
fish habitat including ditches will be stabilized (i.e., re-seeded and/or re-vegetated)
immediately following activities at the site to minimize potential for erosion. Until
revegetation is complete, temporary erosion control practices (e.g., silt fences,
sediment traps, flow diversion, etc.) may be required to effectively control sediment.
During construction and until re-vegetation is sufficient to control sediment and
erosion, the proponent will ensure that these effective sediment and erosion control
measures are in place and that they are functioning properly and are maintained
and/or upgraded as required to prevent sediment from entering fish habitat.
16. The contents of this Standard Mitigation Measures for Bridge Repair and
Maintenance document must be reviewed by all relevant construction personnel and a
copy kept on site at all times while the work is in progress. Photographs should be
.../5taken of the project at various stages of completion so they are available upon request
by DFO staff.
If you feel that you cannot meet all the terms and conditions of document, then you are
advised to contact your nearest DFO office prior to undertaking your project. This document
does not authorize you to harmfully alter, disrupt or destroy fish habitat which is a violation
of Section 35(1) of the federal Fisheries Act.
Please note that this Standard Mitigation Measures for Bridge Repair or Replacement
document does not release you from the responsibility of obtaining any other approvals that
may be required under federal, provincial or municipal legislation.
DFO Offices in Saskatchewan:
Prince Albert District Office Regina District Office
Fisheries and Oceans Canada Fisheries and Oceans Canada
125-32nd Street West 1804 Victoria Avenue East
Prince Albert, SK Regina, SK
S6V 8E2 S4N 7K3
Phone: (306) 953-8777 (General Inquiries) Phone: (306) 780-8725 (General Inquiries)
Fax: (306) 953-8792 Fax: (306) 780-8722
Project email: Projects.PrinceAlbert@dfo-mpo.gc.ca Project email: Projects.Regina@dfo-mpo.gc.ca
.../6Notification of Intended Use Form
Standard Mitigations for Bridge Repair and Replacement
t information
PROPONENT INFORMATION:
Name:
Address:
Telephone (residence):
Telephone (work):
Fax No:
Email address:
CONTRACTOR INFORMATION (if relevant):
Name:
Address:
Telephone (residence):
Telephone (work):
Fax No:
Email address:
PROJECT LOCATION:
Name of water body or watercourse:
Coordinates of the Project:
(UTM co-ordinate or Degrees, Minutes,
Seconds)
Legal Land Description:
(Section-Township-Range or Route or
Highway number)
Proposed Start Date:
Proposed Completion Date:
I, ______________________________ (print name) certify that the information given on this form
is, to the best of my knowledge, correct and complete.
Signature Date: _____________________________
Note: If you cannot meet all of the conditions and cannot incorporate all of the measures in the Standard Mitigations for
Bridge Repair and Replacement document then your project may result in a violation of Subsection 35(1) of the Fisheries
Act and you could be subject to enforcement action. In this case, you should contact the DFO office in your area if you
wish to obtain DFO’s opinion on the possible options you should consider to avoid contravention of the Fisheries Act.
Information about the above-noted proposed work or undertaking is collected by DFO under the authority of the Fisheries
Act for the purpose of administering the fish habitat protection provisions of the Fisheries Act.TIMING WINDOWS Fisheries and Oceans Canada
Saskatchewan Operational Statement
Version 3.0
SASKATCHEWAN IN-WATER CLOSED
CONSTRUCTION TIMING WINDOWS
Restricted activity timing windows have been identified for
Saskatchewan lakes, rivers and streams to protect fish during
spawning and incubation periods when spawning fish, eggs and
fry are vulnerable to disturbance or sediment. During these
periods, no in-water or shoreline work is allowed except under
site- or project-specific review and with the implementation of
protective measures. Restricted activity periods are determined
on a case by case basis according to the species of fish in the
water body, whether those fish spawn in the spring or fall/winter,
and whether the water body is located in Northern, Central, or
Southern Saskatchewan.
Timing windows are just one of many measures used to protect fish
and fish habitat when carrying out a work or undertaking in or
around water. Be sure to follow all of the measures outlined in the
Operational Statements to avoid negative impacts to fish habitat.
Figure 1:
Northern, Central, and Southern Saskatchewan boundaries
for in-water closed construction timing windows.
(Note: Central Region includes the Churchill River).
How To Determine Timing Windows
1. Determine the fish species living in the water body where you 3. Determine if the water body is located in Northern, Central,
wish to do work. Consult Saskatchewan Environment or your or Southern Saskatchewan according to Figure 1.
local Fisheries and Oceans Canada (DFO) office.
4. Use Table 2 to determine the in-water work timing restrictions
2. Determine if the fish living in the water body spawn in the according to the location of a water body (Northern, Central
spring or fall/winter according to Table 1. There may be one or Southern) and the type of fish found within (spring or fall
or both spawning types in any given water body. In spawners). During these periods, no in-water work (below the
Saskatchewan, essentially all lakes and streams contain one ordinary high water mark) is to occur without site- or project-
or more of the spring spawning fish listed, however far fewer specific review by DFO.
contain fall/winter spawning fish.Table 1:
Common spring and fall/winter spawning fish.
Spring Fall/Winter
Spawning Fish Spawning Fish
Arctic Grayling Rainbow Trout Brook Trout
Bullhead Sauger Brown Trout
Goldeye Smallmouth Bass Burbot (winter)
Lake Sturgeon Suckers Cisco (Tullibee)
Mooneye Walleye Lake Trout
Northern Pike Yellow Perch Whitefish
Table 2:
Timing windows when no in-water work is to occur in order to protect spawning fish and developing eggs and fry.
Spring Spawning Fish Fall/Winter and Spring Spawning Fish
Location
No Lake Sturgeon Lake Sturgeon present No Lake Trout Lake Trout present
Northern May 1 – July 15 May 1 – July 31 October 1 – July 15 Sept. 1 – July 15
Saskatchewan
Central
April 16 – June 30 April 16 – July 15 October 1 – June 30 Sept. 15 – June 30
Saskatchewan
Southern
April 1 – May 31 April 1 – July 15 October 1 – May 31 Not Applicable
Saskatchewan
FISHERIES AND OCEANS CANADA OFFICES IN SASKATCHEWAN
Prince Albert Office Regina Office
Fisheries and Oceans Canada Fisheries and Oceans Canada
125 – 32nd Street West 1804 Victoria Avenue East
Prince Albert, SK S6V 8E2 Regina, SK S4N 7K3
Tel.: (306) 953-8777 Tel.: (306) 780-8725
Fax: (306) 953-8792 Fax: (306) 780-8722
Aussi disponible en français
http://www.dfo-mpo.gc.ca/oceans-habitat/habitat/
modernizing-moderniser/epmp-pmpe/index_f.asp
DFO/2007-1329
©Her Majesty the Queen in Right of Canada 2007
This Operational Statement (Version 3.0) may be updated as required by Fisheries and Oceans Canada. It is your responsibility to use the most recent version. Please refer to the Operational
Statements web site at http://www.dfo-mpo.gc.ca/oceans-habitat/habitat/modernizing-moderniser/epmp-pmpe/index_e.asp to ensure that a more recent version has not been released.You can also read
