Form A - Fish Passage - Culvert Inspection - Side 1
Date (mm/dd/yy) |
05/30/98 |
Stream Name |
|
Road Name/ID# |
7000 |
Road Location (MoF district) |
100 Mile House |
UTM/GPS Location |
10.680656.5771241 |
Road Responsibility |
Weldwood |
1:20 000 Map Sheet |
93A.009 |
Watershed Code |
|
Site Number |
33 |
Recorders Name |
TA |
Culvert Characteristics
Culvert Diameter (mm) |
r=0.9/cr=0.9/cl=0.9/ l=1.4 |
FPC Diameter Estimate (mm) |
|
Culvert Length (m) |
16 |
Culvert Slope (%) |
3 |
Culvert Material |
steel |
High Water Mark (cm) |
new culverts/unk. |
Culvert Water Velocity (m/s) |
unk. |
Current Culvert Water Depth (cm) |
|
Culvert Shape |
round |
Culvert Outfall Drop (cm) |
r=10/c=0/l=10 |
Culvert Wetted Width (cm) |
full above diameter |
Culvert Maintenance |
Hi / Mod / L / No |
Stream Characteristics
Stream Reach |
Stream Classification |
S1 S2 S3 S4 S5 S6 P |
|
Sediment Source/Degree |
Yes / No - Hi / Mod / L |
Blue Listed/ Significant |
|
Pool Depth at Outfall (cm) |
unk. |
Measure |
Measurement(s) Above Culvert |
Measurement(s) Below Culvert |
Average Measurement |
Mean Wetted Width (m) |
~10 |
~10 |
|
Mean Bankfull Width (m) |
~10 |
~10 |
|
Mean Water Depth (cm) |
1+ |
1+ |
|
Mean Bankfull Depth (cm) |
1+ |
1+ |
|
Stream Water Velocity (m/s) |
1.6 1.8 1.8 |
1.8 1.8 1.6 |
1.8 |
Stream Gradient (%) |
5 |
4.5 |
5 |
Fish Presence |
Yes / No / No Survey |
Yes / No / No Survey |
NA |
Fish Sampling Method |
NA |
||
Sampling Effort (time) |
NA |
||
Species Present |
suspect RB |
RB |
NA |
Beaver Activity/Type |
none |
NA |
Barrier Evaluation:
Barrier |
Full Partial None Undetermined |
Barrier Type
|
velocity barrier to all age classes at present hanging velocity barrier to juveniles over most flow regimes |
Prescription
|
replace culverts with a bridge |
Form A - Fish Passage - Culvert Inspection - Side 2
Comments:
- flood conditions at time of survey
- flow is not contained within a defined channel
- two middle culverts completely submerged - potential for road to wash out as has happened before (May 1997)
- adult rainbow trout could not migrate past culverts while attempting to reach spawning habitat
Site Photos: Roll # 6 Inlet upstream photo # 10 Inlet downstream photo # 11
Outlet upstream photo # 12 Outlet downstream photo # 13
Other photos 9- looking down at submerged culvert
14- overflow