Lake Erie North Shore Watershed Plan - Niagara Peninsula ...
Lake Erie North Shore Watershed Plan - Niagara Peninsula ...
Lake Erie North Shore Watershed Plan - Niagara Peninsula ...
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LAKE ERIE NORTH SHORE WATERSHED PLAN<br />
potentially constricting the channel. Measurements taken at channel cross sections would indicate that the<br />
watercourse at this field site is entrenched which results in flood waters having limited to no access to the<br />
floodplain. Therefore, the energy within the flow is contained in the channel. Recommendations for this site<br />
include not grading the channel banks too steep during the dredging process so that deep rooted vegetation can<br />
become established along the banks and stabilize the soil. It should be confirmed that the culvert is not<br />
constricting the channel and if it is then it needs to be rebuilt and adequately sized. Due to the impact on water<br />
quality it is advised that landowners stop throwing vegetated debris over the bank. Monitoring the accumulation<br />
of sediment along the channel bed can be done by the use of sediment traps throughout the watercourse.<br />
Proper bank protection measures should be installed along the right bank to ensure adequate stabilization. All<br />
recommendations should be discussed with the Drainage Superintendent.<br />
3. Sideroad 18 (CDMa-2): This section of watercourse is managed as a municipal drain; Casey Drain. It has<br />
been channelized and there are a few point bars and side bars present within the channel. The near bank and<br />
riparian vegetation consists predominantly of herbaceous vegetation and therefore habitat and shading over the<br />
stream will be negatively impacted No pools exist but there is stagnant water present throughout the field site.<br />
Algae and an oily sheen on the water surface were identified throughout the watercourse during a site visit in<br />
2008, as well as dense vegetation within the channel. Small tributaries or possibly gullies/rills exist along the<br />
watercourse. Relatively deep unconsolidated sediment is deposited along the channel bed. Bank instability is<br />
present in the form of bare soil extending up the bank, undercut banks, and possible slumping. This instability is<br />
occurring on both banks which can indicate that widening may be occurring at this field site. Measurements<br />
taken at channel cross sections would indicate that the watercourse at this field site is moderately entrenched<br />
which results in flood waters having limited to no access to the floodplain. Therefore, the energy within the flow<br />
is contained in the channel. Recommendations for this site include not grading the channel banks too steep<br />
during the dredging process so that deep rooted vegetation can become established along the banks and<br />
stabilize the soil. The presence of bank slumping usually indicates that vegetative roots are too shallow to<br />
stabilize the bank. Water quality should continue to be monitored in this watershed. Monitoring the<br />
accumulation of sediment along the channel bed can be done by the use of sediment traps throughout the<br />
watercourse. Projects to prevent and limit further development of rills adjacent to the watercourse should be<br />
implemented. Some examples include grassed waterways, chute spillways, tile drainage outlets, and proper<br />
tillage and cropping practices (OMAFRA, 1997a, and OMAFRA, 1997b). All recommendations should be<br />
discussed with the Drainage Superintendent.<br />
4. Sideroad 18 (CDMb): This section of watercourse is managed as a municipal drain; Casey Drain. It has<br />
been channelized and lacks any depositional features along the stream bed which indicate little flow diversity<br />
within the channel. The buffer zone is predominantly shrubs and herbaceous vegetation therefore habitat and<br />
shading over the watercourse will be impacted. No pools exist along the bed but there is stagnant water present<br />
throughout the field site. Relatively deep unconsolidated sediment is deposited along the channel bed. Algae<br />
and turbid water were noted during a site visit in 2008. Small tributaries or possibly gullies/rills exist along the<br />
watercourse. A failed culvert exists at the road allowance and a debris jam exists upstream of it. Bank erosion<br />
is evident along the steep banks of the channel. Bare soil extends up the bank, slumping is occurring, and<br />
fracture lines are present at the top of the banks. Measurements taken at channel cross sections would indicate<br />
that the watercourse at this field site is moderately entrenched which results in flood waters having limited to no<br />
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