Appendix - Phase 1 Fish Passage Assessment Data and Photos

Location and Stream Data
Crossing Characteristics –
Date 2025-09-15 Crossing Sub Type Round Culvert
PSCIS ID 203577 Diameter (m) 1.5
External ID 5400047 Length (m) 40
Crew AI Embedded No
UTM Zone 9 Depth Embedded (m) –
Easting 666752 Resemble Channel No
Northing 5984529 Backwatered No
Stream Van Lear Creek Percent Backwatered –
Road Unnamed Fill Depth (m) 2.5
Road Tenure MoTi Outlet Drop (m) 0
Channel Width (m) 2.5 Outlet Pool Depth (m) 0
Stream Slope (%) 1 Inlet Drop Yes
Beaver Activity No Slope (%) 3
Habitat Value Low Valley Fill Deep Fill
Final score 32 Barrier Result Barrier
Fix type Replace with New Open Bottom Structure Fix Span / Diameter 15
Comments: This pipe, along with the adjacent overflow pipe, appeared to be located under what was likely the historic alignment of Colleymount Road. Approximately 3–4m downstream of the outlets, the road was armored with parking blocks that directed flow west into the oval culvert beneath the current road. The channel was dry at the time of assessment.
Photos: PSCIS ID 203577. From top left clockwise: Road/Site Card, Barrel, Outlet, Downstream, Upstream, Inlet.





Location and Stream Data
Crossing Characteristics –
Date 2025-10-05 Crossing Sub Type Round Culvert
PSCIS ID 203578 Diameter (m) 1.25
External ID 24403467 Length (m) 19
Crew AI Embedded No
UTM Zone 10 Depth Embedded (m) –
Easting 570742 Resemble Channel No
Northing 5925896 Backwatered No
Stream Tributary To Willow River Percent Backwatered –
Road Willow FSR Fill Depth (m) 1
Road Tenure MoF Outlet Drop (m) 0.65
Channel Width (m) 3.2 Outlet Pool Depth (m) 0.85
Stream Slope (%) 3.5 Inlet Drop No
Beaver Activity Yes Slope (%) 1.5
Habitat Value Medium Valley Fill Deep Fill
Final score 34 Barrier Result Barrier
Fix type Replace with New Open Bottom Structure Fix Span / Diameter 15
Comments: Nice habitat downstream with abundant gravels, shallow pools, and woody debris. EDNA collected downstream. Wetland upstream. Two pipes with only one actively passing water at the time of survey, both 1.25m in diameter. Beaver grate on the inlet of the pipe.
Photos: PSCIS ID 203578. From top left clockwise: Road/Site Card, Barrel, Outlet, Downstream, Upstream, Inlet.





Location and Stream Data
Crossing Characteristics –
Date 2025-10-05 Crossing Sub Type Round Culvert
PSCIS ID 203579 Diameter (m) 1.1
External ID 24403486 Length (m) 12
Crew AI Embedded No
UTM Zone 10 Depth Embedded (m) –
Easting 572013 Resemble Channel No
Northing 5922265 Backwatered Yes
Stream Tributary To Willow River Percent Backwatered 100
Road Willow FSR Fill Depth (m) 1
Road Tenure MoF Outlet Drop (m) 0
Channel Width (m) 2 Outlet Pool Depth (m) 0.5
Stream Slope (%) 3.5 Inlet Drop Yes
Beaver Activity No Slope (%) 0.5
Habitat Value Medium Valley Fill Deep Fill
Final score 16 Barrier Result Potential
Fix type Replace with New Open Bottom Structure Fix Span / Diameter 15
Comments: Small stream with good flow. Small gravels upstream and downstream. Culvert was backwatered 100% at the time of survey.
Photos: PSCIS ID 203579. From top left clockwise: Road/Site Card, Barrel, Outlet, Downstream, Upstream, Inlet.





Location and Stream Data
Crossing Characteristics –
Date 2025-09-15 Crossing Sub Type Oval Culvert
PSCIS ID 203580 Diameter (m) 2.2
External ID 5400321 Length (m) 21
Crew AI Embedded Yes
UTM Zone 9 Depth Embedded (m) 0.06
Easting 681754 Resemble Channel Yes
Northing 5988177 Backwatered No
Stream Cordella Creek Percent Backwatered –
Road Colleymount Creek Fill Depth (m) 1
Road Tenure MoTi Outlet Drop (m) 0
Channel Width (m) 3.2 Outlet Pool Depth (m) 0.2
Stream Slope (%) 3.5 Inlet Drop No
Beaver Activity No Slope (%) 1
Habitat Value High Valley Fill Deep Fill
Final score 19 Barrier Result Potential
Fix type Replace with New Open Bottom Structure Fix Span / Diameter 15
Comments: Very nice stream with good flow and abundant, small gravel upstream and down. There is a boulder line approximately 3m downstream of the outlet that has removed the outlet drop but creates a ~40cm high cascade. Outlet of culvert is approximately 25m from François lake.
Photos: PSCIS ID 203580. From top left clockwise: Road/Site Card, Barrel, Outlet, Downstream, Upstream, Inlet.





Location and Stream Data
Crossing Characteristics –
Date 2025-09-24 Crossing Sub Type Concrete Box
PSCIS ID 203581 Diameter (m) 2.1
External ID 19703295 Length (m) 50
Crew AI Embedded No
UTM Zone 10 Depth Embedded (m) –
Easting 526469 Resemble Channel No
Northing 5985767 Backwatered No
Stream Tributary To Fraser River Percent Backwatered –
Road Railway Fill Depth (m) 9.9
Road Tenure CN Rail Outlet Drop (m) 2.5
Channel Width (m) 4 Outlet Pool Depth (m) 0.1
Stream Slope (%) 2.5 Inlet Drop No
Beaver Activity No Slope (%) 2.5
Habitat Value Medium Valley Fill Deep Fill
Final score 37 Barrier Result Barrier
Fix type Replace with New Open Bottom Structure Fix Span / Diameter 35.5
Comments: Large concrete box structure with the outlet directly on the floodolain of the Fraser River. When the river is 2.5 - 3.5m higher the structure would backwater. Appears that the high watermark is near level with the outlet of the culvert.
Photos: PSCIS ID 203581. From top left clockwise: Road/Site Card, Barrel, Outlet, Downstream, Upstream, Inlet.





Location and Stream Data
Crossing Characteristics –
Date 2025-09-25 Crossing Sub Type Round Culvert
PSCIS ID 203582 Diameter (m) 5.2
External ID 19703257 Length (m) 50
Crew AI Embedded No
UTM Zone 10 Depth Embedded (m) –
Easting 518844 Resemble Channel –
Northing 5961981 Backwatered No
Stream Tabor Creek Percent Backwatered –
Road Railway Fill Depth (m) 10
Road Tenure CN Rail Outlet Drop (m) 0.3
Channel Width (m) 10 Outlet Pool Depth (m) 1
Stream Slope (%) 1.5 Inlet Drop No
Beaver Activity No Slope (%) 0.5
Habitat Value Medium Valley Fill Deep Fill
Final score 32 Barrier Result Barrier
Fix type Replace with New Open Bottom Structure Fix Span / Diameter 36
Comments: Two pipes at 2.6 m each. Pipes are in decent shape although it appears they had metal skirt sections (previously attached to bottom of pipes) at the outlets that have ripped off. Difficult to determine the size of the outlet drop as the stream was dry at the time of assessment. Culvert also crosses underneath a road and powerline on the east side of the railway
Photos: PSCIS ID 203582. From top left clockwise: Road/Site Card, Barrel, Outlet, Downstream, Upstream, Inlet.





Location and Stream Data
Crossing Characteristics –
Date 2025-09-15 Crossing Sub Type Round Culvert
PSCIS ID 203583 Diameter (m) 1
External ID 5405348 Length (m) 11
Crew AI Embedded No
UTM Zone 9 Depth Embedded (m) –
Easting 642730 Resemble Channel –
Northing 5985238 Backwatered No
Stream Tributary To Nadina River Percent Backwatered –
Road Tahtsa FSR Fill Depth (m) 1
Road Tenure FLNR DND Outlet Drop (m) 0
Channel Width (m) 1.5 Outlet Pool Depth (m) 0
Stream Slope (%) 3 Inlet Drop Yes
Beaver Activity No Slope (%) 4
Habitat Value Low Valley Fill Deep Fill
Final score 26 Barrier Result Barrier
Fix type Replace Structure with Streambed Simulation CBS Fix Span / Diameter 3
Comments: Review of floodplain mapping indicates that this watershed actually drains to 1 km west through an open bottom structure. Adjacent land use is for cattle so this may be affecting drainage and habitat health upstream.
Photos: PSCIS ID 203583. From top left clockwise: Road/Site Card, Barrel, Outlet, Downstream, Upstream, Inlet.





Location and Stream Data
Crossing Characteristics –
Date 2025-09-15 Crossing Sub Type Round Culvert
PSCIS ID 203584 Diameter (m) 0.9
External ID 5405311 Length (m) 15
Crew AI Embedded No
UTM Zone 9 Depth Embedded (m) –
Easting 646168 Resemble Channel –
Northing 5987669 Backwatered No
Stream Tributary To Nadina River Percent Backwatered –
Road Tahtsa FSR Fill Depth (m) 1.5
Road Tenure Canfor R03011 174 Outlet Drop (m) 1.1
Channel Width (m) 2.3 Outlet Pool Depth (m) 0.4
Stream Slope (%) 3.5 Inlet Drop No
Beaver Activity No Slope (%) 0
Habitat Value Medium Valley Fill Deep Fill
Final score 29 Barrier Result Barrier
Fix type Replace with New Open Bottom Structure Fix Span / Diameter 15
Comments: Larger stream than expected, with substantial flow, a large outlet drop, and a significant outlet pool indicating the culvert is likely undersized for the crossing. Some gravels suitable for bull trout spawning were present.
Photos: PSCIS ID 203584. From top left clockwise: Road/Site Card, Barrel, Outlet, Downstream, Upstream, Inlet.





Location and Stream Data
Crossing Characteristics –
Date 2025-09-15 Crossing Sub Type Oval Culvert
PSCIS ID 203585 Diameter (m) 1.7
External ID 5400078 Length (m) 16
Crew AI Embedded No
UTM Zone 9 Depth Embedded (m) –
Easting 666733 Resemble Channel –
Northing 5984517 Backwatered No
Stream Van Lear Creek Percent Backwatered –
Road Colleymount Road Fill Depth (m) 1
Road Tenure MoTi Outlet Drop (m) 0
Channel Width (m) 2.5 Outlet Pool Depth (m) 0
Stream Slope (%) 1 Inlet Drop No
Beaver Activity No Slope (%) 3
Habitat Value Low Valley Fill Deep Fill
Final score 29 Barrier Result Barrier
Fix type Replace with New Open Bottom Structure Fix Span / Diameter 15
Comments: This is the crossing on Colleymount Road; however, two additional pipes located approximately 10m west and just upstream appear to be remnants of pipes under historic Colleymount Road location. The existing pipe was in poor condition, with rust-through observed along the upstream 2m. The stream was dry at the time of assessment.
Photos: PSCIS ID 203585. From top left clockwise: Road/Site Card, Barrel, Outlet, Downstream, Upstream, Inlet.





Location and Stream Data
Crossing Characteristics –
Date 2025-09-15 Crossing Sub Type Pipe Arch
PSCIS ID 203586 Diameter (m) 16
External ID 5405342 Length (m) 2.25
Crew AI Embedded No
UTM Zone 9 Depth Embedded (m) –
Easting 641843 Resemble Channel –
Northing 5984683 Backwatered No
Stream Tributary To Nadina River Percent Backwatered –
Road Tahtsa FSR Fill Depth (m) –
Road Tenure FLNR DND Outlet Drop (m) 0
Channel Width (m) 0 Outlet Pool Depth (m) 0
Stream Slope (%) 0 Inlet Drop No
Beaver Activity No Slope (%) 0
Habitat Value – Valley Fill –
Final score 10 Barrier Result Passable
Fix type – Fix Span / Diameter –
Comments: Numerous spawning sockeye immediately adjacent to culvert outlet and upstream. Channel dry at the time of assessment but appears as though this stream joins with and drains the watershed for the stream mapped as larger located to the east approximately 1km. Floodplain modelling shows this.
Photos: PSCIS ID 203586. From top left clockwise: Road/Site Card, Barrel, Outlet, Downstream, Upstream, Inlet.





Location and Stream Data
Crossing Characteristics –
Date 2025-09-15 Crossing Sub Type Bridge
PSCIS ID 203587 Diameter (m) 17
External ID 5404085 Length (m) 5.2
Crew AI Embedded No
UTM Zone 9 Depth Embedded (m) –
Easting 655728 Resemble Channel –
Northing 5988666 Backwatered No
Stream Tributary To Nadina River Percent Backwatered –
Road Morice Owen East FSR Fill Depth (m) –
Road Tenure MoF Outlet Drop (m) 0
Channel Width (m) 0 Outlet Pool Depth (m) 0
Stream Slope (%) 0 Inlet Drop No
Beaver Activity No Slope (%) 0
Habitat Value – Valley Fill –
Final score 10 Barrier Result Passable
Fix type – Fix Span / Diameter –
Comments: Bridge
Photos: PSCIS ID 203587. From top left clockwise: Road/Site Card, Barrel, Outlet, Downstream, Upstream, Inlet.





Location and Stream Data
Crossing Characteristics –
Date 2025-09-15 Crossing Sub Type Pipe Arch
PSCIS ID 203588 Diameter (m) 30
External ID 5404090 Length (m) 3.6
Crew AI Embedded No
UTM Zone 9 Depth Embedded (m) –
Easting 660673 Resemble Channel –
Northing 5987470 Backwatered No
Stream Tributary To Nadina River Percent Backwatered –
Road Morice Owen East FSR Fill Depth (m) –
Road Tenure Canfor R13343 11 Outlet Drop (m) 0
Channel Width (m) 0 Outlet Pool Depth (m) 0
Stream Slope (%) 0 Inlet Drop No
Beaver Activity No Slope (%) 0
Habitat Value – Valley Fill –
Final score 10 Barrier Result Passable
Fix type – Fix Span / Diameter –
Comments: Pipe Arch
Photos: PSCIS ID 203588. From top left clockwise: Road/Site Card, Barrel, Outlet, Downstream, Upstream, Inlet. 





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