Scott - Goldie Creek - District of North Vancouver

31-288\Drawings\Fig1-1.DWG Dec.05/03
Sunshine Creek
Watershed
Mount
Seymour
Ski Area
Deep
Cove
Scott - Goldie Creek
Sunshine Creek
Scott-Goldie Creek
Watershed
A R M
I N D I A N
District of North Vancouver
Debris Flow Study and
Risk Mitigation Alternatives for
Scott-Goldie Creek and Sunshine Creek
1000
Watershed Boundary
Mount Seymour
Park Boundary
0
Scale in Metres
1000
31.288 December 2003
Location Map
Figure 1-1

31.288\Drawings\31288Fig1-2.Dwg Dec.05/03
Mount
Seymour
Ski Area
Mount Seymour
Provincial Park
Scott - Goldie Creek
Sunshine Creek
I N D I A N
A R M
District of North Vancouver
Debris Flow Study and
Risk Mitigation Alternatives for
Scott-Goldie Creek and Sunshine Creek
Legend
400
Watershed Boundary
Property Line
Mount Seymour
Park Boundary
0
Scale in Metres
400
31.288 December 2003
Photo Mosaic of
Scott-Goldie Creek
and Sunshine Creek
Watersheds
Figure 1-2

31.288\Drawings\31288Fig1-3.Dwg Dec.05/03
200
Mount Seymour Provincial Park
Sunshine
31.288 December 2003
0
Scale in Metres
Creek
200
Scott-
Goldie
Creek
Legend
District of
North Vancouver
District of North Vancouver Debris Flow Study and
Risk Mitigation Alternatives for Scott-Goldie Creek and Sunshine Creek
Property Ownership
Indian
Arm
Private
Figure 1-3

31-288\Fig2-1.DWG Dec.20/02
974.8
.7
982.9
S
991.0
999.4
1005.5
997.4
S
Seymour
Mountain
1012.4
1006.2
999.2
S
1026.3
1017.2
1016.5
933.5
SEYMOUR ROAD
1023.0
1019.2
1022.6
927.4
1021.5
923.7
1020.2
924.4
915.8
Debris flow deposit (from Scott-Goldie avulsion) at intersection with Sunshine Creek
F at 250 m elevation, February 2002.
D
G
1058.2
1025.7
997.7
955.3
Flower
Lake
Right bank of Scott-Goldie Creek (290 m elevation) at possible avulsion route into the drainage of Sunshine Creek, February 2002.
Sunshine Creek at Firelane 8, February 2002.
962.4
Mount Seymour
Provincial Park
S
972.8
S
Section 6
S
T5
S
T6
S
S
S
S
Section 5
E
S
S
S
T4
T4
S
T3
T2
T3
S
T5
Seymour Park
Boundary
T2
Section 4
Scott - Goldie
Possible
Avulsion
Route
Percy
E Debris slides along upper reaches of Scott-Goldie Creek, October 2001.
B
Creek
G
F
Sunshine
D
Scott-Goldie Creek at Indian Arm, July 1997
T1
T1
Section 3
W
Creek
Creek
Section 2
FIRELANE 7
W
Vapour Creek
H
FIRELANE 8
Water Intake
C
Section 1
INDIAN
ARM
B
A
A Overview of Scott-Goldie Creek, 2001.
100 0 100
Scale in Metres
Fireline 8 crossing of Scott-Goldie Creek, October 2001
Watershed Area
Scott-Goldie Creek 1.7 km 2
Sunshine Creek 1.2 km 2
Debris Flow Study and
Risk Mitigation Alternatives for Scott-Goldie Creek and Sunshine Creek
C
H Overview of Sunshine Creek at Indian Arm, 2001.
Hydrologic Landforms
Swamp, Bog
Helicopter Logged
Mass Movement Processes
and Land Forms
Avalanche Trimline
Potential Avulsion Routes
for Debris Flows and
Debris Floods
Potential Displacement
Wave from Rockfall/Rockslide
into Lake
Approximate Photo
Location and Direction
Rockfall Scarp (recent)
Sackung/Antislope Scarp
Translational Slide or Road
Fill Slope Failure
Gullies in Cohesionless
Materials
Bank Erosion
Geomorphic Map of
Scott-Goldie Creek and Sunshine Creek Watersheds
200
187.4
A
Definite Stream
Indefinite Stream
Lake
Topography
Infrastructure
Trail
Bridge
Building
Hydro Pole
Vegetation
Bank Full Stream Channel
Shoreline
Index Contour (25 m)
Intermediate Contour (5 m)
Spot Height (m)
Road
Gravel Road
Property Line
Snag
Tall Tree
Treeline
Area of Potential Debris Flow
or Debris Slide Initiation
Area of Debris Accumulation
Modern Creek Fan
Watershed Boundary
Bedrock (Selected Locations)
Colluvium (Selected Locations)
Tributary Debris Slide, Rock
Slide Debris Flow Trajectory
Potential Landslide
Dam Location
Ravelling
Figure 2-1

31-288\Drawings\Fig2-2.DWG Dec.05/03
Bridge
FIRELANE 8
Scott - Goldie Creek
Waterfall
HAZARD ZONE
RED
ORANGE
YELLOW
HAZARD ZONE DEFINITION
v (m/s) d (m) D (m)
>3 >3 >2
1-3 1-3 1-2

Fig3-1.DWG Dec.05/03
Approximate
Location of
1000 m 3
Debris Barrier
Sunshine
Creek
FIRELANE 8
Approximate
Location of
500 m 3
Debris Barrier
FIRELANE 7
INDIAN
Water Intake
ARM
District of North Vancouver
Debris Flow Study and
Risk Mitigation Alternatives for
Scott-Goldie Creek and Sunshine Creek
Legend
Notes:
1.
2.
3.
50
Building
Dock
Property Boundary
Possible Avulsion Route
from Scott-Goldie Creek
Contours are based on photogrammetry
and are approximate only.
The dimensions and location of mapping
features are approximate and are based
on 1996 colour air photos.
Property lines are based on cadastral
information provided by the District of
North Vancouver.
0
Scale in Metres
50
31.288 December 2003
Debris Barrier Options
for Sunshine Creek
Figure 3-1

Fig3-2.DWG Dec.05/03
4.0 m
Note:
4.0 m
All dimensions are approximate
and would have to be adjusted
depending on the chosen location.
31.288 December 2003
Scale 1:100
1.0 m
0.5
1
15.0 m
10.0 m
1
8.0 m
Cross-Section
(Looking Downstream)
Steel Plated
on Upstream
Side
1
Section
Impact
Existing
Surface
District of North Vancouver Debris Flow Study and
Excavated
Surface
Existing
Surface
Excavated
Surface
Risk Mitigation Alternatives for Scott-Goldie Creek and Sunshine Creek
Concept Plan for Debris Barrier
at Sunshine Creek Figure 3-2

0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
WATERCONTENTIN%
100
1.0
90 80 70 60 50 40 30 20 10 0
0.0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
SEDIMENTCONCENTRATIONBYVOLUME,C
C
C
1+(G-1)C
Specific Gravity
G=2.65
Classification of
Mass Movement Processes
w
=
v
G
v
v
30-100
10-30
5-10
1-10
2-5
1-3
1.0
FigureA-1

31-288\Drawings\FigC-1.DWG Dec.05/03
Elevation above Sea Level (m)
1000
900
800
700
600
500
400
300
200
100
Flower
Lake
0
3500
4°
T6
Section 6
8°
12°
T4
Lower Bounds
of Ski Area
T2
11°
T5
3°
16°
3000
21°
16°
11°
6°
26°
25° 13°
32°
40°
18°
Section 5
28°
17°
23°
19°
34°
T3
14°
16°
Several
Debris
Slides
2500
26°
36°
Debris
Slide
36°
Debris
Slide
2000
17°
Section 4
Canyon
14°
1500
Horizontal Distance (m)
15°
Section 3
T1
24°
27°
36°
Section 2
12°
Possible
Avulsion Route
into Sunshine Creek
1000
500
17°
Section 1
200
Firelane 8 Waterfall
19°
0
1000
900
800
700
600
500
400
300
100
0
District of North Vancouver
Debris Flow Study and
Risk Mitigation Alternatives for
Scott-Goldie Creek and Sunshine Creek
Legend
16°
16°
Creek Profile
Gradient in Creek Section
Tributary Creek
Gradient in Tributary
Creek Section
Note:
Vertical scale is exaggerated.
Horizontal 1:15,000 Vertical 1:5,000
Scale in Metres
31.288 December 2003
Profile of
Scott-Goldie Creek
Figure C-1

31-288\Drawings\FigC-2.DWG Dec.05/03
Elevation above Sea Level (m)
800
700
600
500
400
300
200
100
0
2500
18°
T5
19°
2000
23°
T4
22°
24°
1500
Avulsion Route From Scott-Goldie Creek
17°
33°
25°
24°
T3
20°
30°
40°
Horizontal Distance (m)
26°
15°
12°
1000
24°
24°
T2
26°
34°
Firelane 8
T1
29°
10°
9°
15°
15°
10°
35°
14°
500
4°
11°
20°
14°
0
800
700
600
500
400
300
200
100
0
District of North Vancouver
Debris Flow Study and
Risk Mitigation Alternatives for
Scott-Goldie Creek and Sunshine Creek
Legend
8 °
8 °
Creek Profile
Gradient in Creek Section
Tributary Creek
Gradient in Tributary
Creek Section
Note:
Vertical scale is exaggerated.
Horizontal 1:10,000 Vertical 1:5,000
Scale in Metres
31.288 December 2003
Profile of
Sunshine Creek
Figure C-2