Revised Final Environmental Study Report (24 MB) - Gold Canyon ...
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Revised Final Environmental Study Report (24 MB) - Gold Canyon ...

Revised Final Environmental Study Report (24 MB) - Gold Canyon ... Revised Final Environmental Study Report (24 MB) - Gold Canyon ...

goldcanyon.ca
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06.05.2015 Views

Springpole_GenericSedInstall_____________________________________________________10July2013 5.2 Winter Snow and Ice Bridge • The winter stream crossing will be used when creeks are completely frozen and movement of machinery is required before a culvert can be installed. • The DFO Operational Statement for Ice Bridges and Snow Fills will be followed. • Winter snow and ice bridge will only be used on streams less then 1m wide. 5.2.1 Installation and Sediment Control Plan Installation 1. No digging, grubbing or ditching will occur within the flood plain or 30 m past the flood plain. 2. No debris will be dropped in the stream any debris that inadvertently falls into the stream will be removed. 3. Feller buncher will install brush mat on the approaches to the stream so as to avoid rutting or site disturbance in the flood plain. 4. Snow will be excavated and placed on top of the creek, packed and allowed to freeze. 5. The packed snow will be flooded with water from a tanker obtained from one of the larger flowing streams within the corridor and allowed to freeze. 6. A layer of geotextile will be placed on top of the frozen snow/ice pack and snow will be placed on top of this to create the travel surface (illustrated in Figure 4) Figure 4. Snow and Ice Crossing Diagram Erosion Control 1. No grubbing or ditching within 30m of the creek will occur 2. Before the spring freshet the geotextile will be removed and snow and ice broken to ensure water flow is not impeded. 5.3 Portable Bridge Installed under Frozen Conditions • A MNR standard portable timber bridge will be used only as a last resort if unforeseen problems prevent installation of a culvert • Installation of portable bridges will adhere to the standards in the Crown Bridge Management Guidelines (2008). • Bridge size opening will be installed to a Q25. • The MNR Standard Portable Timber Bridge Design and MNR Standard Abutment Design will be used as the standard for the bridge. 5.3.1 Installation and Sediment Control Plan Installation 1. No digging, grubbing or ditching will occur within the flood plain or 30 m past the flood plain. 2. No debris will be dropped in the stream any debris that inadvertently falls into the stream will be removed. 3. Feller buncher will install brush mat on the approaches to the stream so as not to create rutting or site disturbance in the flood plain. ______________________________________________________________7 of 11

Springpole_GenericSedInstall_____________________________________________________10July2013 4. Approaches to the bridge will be straight. 5. Engineered sill timbers as per the MNR standard abutment design will be placed on the banks at the maximum design distance allowed as per the design drawing. 6. The bridge will be placed on the sill timbers. 7. A layer of geotextile will be placed on the bridge ends and rolled out for 5 m along the road bed 8. Corduroy will be placed on the bridge approaches to create a ramp to the bridge 9. The corduroy ramp will be covered with snow/ice mixture and frozen to create the travel surface 10. Bridge warning signs and corner markers will be installed Erosion Control 1. Before the spring freshet the approaches to the bridge will be excavated and removed from the flood plain, brush mat material will be spread along the road at least 30 m from the stream 2. The bridge will be removed. 3. Any exposed slopes will be stabilized to 2H:1V and slash will be used for erosion control on exposed mineral soil 4. During the summer work season a permanent culvert will be installed as described in 4.1.2. 6.0 Contingency Plan Any changes to this plan must be approved by the MNR. MNR approval will be required for all major deviations from this plan. 7.0 Inspection and Maintenance GCU will adhere to the standards for compliance for forestry operation in Ontario through the forest operation inspection program (FOIP). GCU will: a. Provide email notification to Red Lake MNR 7 days prior to Start up of ROW harvest and road construction b. Upon completion of the harvest and each stream crossing a forest operations inspection will be completed by a certified inspector and filed through FOIP. ______________________________________________________________8 of 11

Springpole_GenericSedInstall_____________________________________________________10July2013<br />

4. Approaches to the bridge will be straight.<br />

5. Engineered sill timbers as per the MNR standard abutment design will be placed on the banks<br />

at the maximum design distance allowed as per the design drawing.<br />

6. The bridge will be placed on the sill timbers.<br />

7. A layer of geotextile will be placed on the bridge ends and rolled out for 5 m along the road<br />

bed<br />

8. Corduroy will be placed on the bridge approaches to create a ramp to the bridge<br />

9. The corduroy ramp will be covered with snow/ice mixture and frozen to create the travel<br />

surface<br />

10. Bridge warning signs and corner markers will be installed<br />

Erosion Control<br />

1. Before the spring freshet the approaches to the bridge will be excavated and removed from<br />

the flood plain, brush mat material will be spread along the road at least 30 m from the stream<br />

2. The bridge will be removed.<br />

3. Any exposed slopes will be stabilized to 2H:1V and slash will be used for erosion control on<br />

exposed mineral soil<br />

4. During the summer work season a permanent culvert will be installed as described in 4.1.2.<br />

6.0 Contingency Plan<br />

Any changes to this plan must be approved by the MNR. MNR approval will be required for all major<br />

deviations from this plan.<br />

7.0 Inspection and Maintenance<br />

GCU will adhere to the standards for compliance for forestry operation in Ontario through the forest<br />

operation inspection program (FOIP). GCU will:<br />

a. Provide email notification to Red Lake MNR 7 days prior to Start up of ROW harvest<br />

and road construction<br />

b. Upon completion of the harvest and each stream crossing a forest operations<br />

inspection will be completed by a certified inspector and filed through FOIP.<br />

______________________________________________________________8 of 11

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