Watershed Report Card: Big Fork River Watershed size: 1,315,135 acres 2,055 square miles Watershed Surface Area: Percent Land - 95 % Percent Water - 5 % HUC8 ID: 09030006 Basin Name: Rainy River (0903) Percent of watershed area by land cover type: Watershed Population: 2000 census - 5,217 2010 census - 5,079 Counties - % of watershed: Marcell - 467 Bigfork - 446 Big Falls - 236 Bowstring - 230 Max - 142 Largest Cities - Population: Koochiching - 51 % Itasca - 49 % People and Places: Land Use: Watershed Area: September, 2015 Watershed Health Assessment Framework "Managing for System Health"
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Watershed Report Card:Big Fork River
Watershed size: 1,315,135 acres 2,055 square miles
Watershed Surface Area: Percent Land - 95 % Percent Water - 5 % HUC8 ID: 09030006Basin Name: Rainy River (0903)
Percent of watershed area by land cover type:
Watershed Population: 2000 census - 5,217 2010 census - 5,079
Counties - % of watershed:
Marcell - 467 Bigfork - 446 Big Falls - 236 Bowstring - 230 Max - 142
Largest Cities - Population:
Koochiching - 51 % Itasca - 49 %
People and Places:
Land Use:Watershed Area:
September, 2015
Watershed Health Assessment Framework"Managing for System Health"
Altered Streams*Surface Storage
Flow Variability
Index Scores
Hydrologic Storage
Water Withdrawal*Impervious Cover*Perennial Cover*
Component Health Score(index average)
Component Health Score(index average)
Component Health Score(index average)
Hydrology
Index Scores
Climate Vulnerability
Groundwater Susceptibility
Soil Erosion Potential*
Index Scores
At-Risk SpeciesRichness
Species Richness
Stream Species Quality*
Terrestrial HabitatQuality*
Index Scores
Riparian Connectivity*
AquaticConnectivity*
Terrestrial HabitatConnectivity
Watershed Health Report - Major Watershed
Watershed Health Assessment Framework Health score methodology - www.dnr.state.mn.us/whaf/about/scores September, 2015
90
99
9892
84
9969
69
5868
77
73
55
9775
Connectivity
59
77
61
33
67
89
9899
95
98Sub-Scores
Component Health Score(index average)
National Land Cover - 2011Open WaterDeveloped, Open Developed, Low Developed, MediumDeveloped, High Barren LandDecidious ForestEvergreen ForestMixed ForestShrub/ScrubGrasslandPasture/HayCultivated CropsWoody WetlandsHerbaceous Wetlands
95
Big Fork River
These health scores are calculated at the Major Watershed (HUC8) scale. Health score namesfollowed by (*) are also calculated at the DNR Catchment scale (subdivided HUC12). Thoseresults are reported on the following pages.
Average Watershed Health Score - 78
Component Health Score(index average)
Water Quality
Index Scores
Assessments
Localized Pollution Sources*
Non-Point Pollution Sources
Phosphorus Risk*Sub-Score
Geomorphology Biology
88
9999
89
96100
98
989289
92
79
91
92
8396
99
87
93
90
86
91
90
9589
100
9795
85
96
85
98
8786
95 9093100
84
78
96
93
9898
95
84
92
99
93
98
9689
97
99
97
98
9595
90
95
98 97
79
92
98
74
10093
96
9993
94
80
9683
93
95
95
98
85
95
97
87
60
9398
88
8994
94
86
9094
96
98
91
9097
83
85
94
100
8899
95
95
9998
65 918297
87 69
91
76
9697
82 959687
0
83
90
99
89
87
92909781
9973
85 91
9488
8391
9798
9698
94
94
89
93
100
100
9689
9099
9898
99
63
89
100
89
80
82
49
7265
869056
70
100 91
100
100
100100
100
100
100
100100100
100100
100
100
100
100100
100
100
100
100
100
100
100
100100
100
100100 100100
100
100
100
100
100
100100
100100
100
100
100
100
100
100
100
100
100
100100
100
100
100100
100
100
100
100
100
100
100
100100
100
100
100100
100
100
100
100
100
100100100
100
100
100
100100
100
100
100100
100
100
100
100100
100
100
100100
100
100
100
100100
100
100
100
100100
100
100
100100
100 100100100
100 100
100
100
100100
100 100100100
100
100
100
100
100
100100
100
100
100
100100
100
100
100100
100
100
100
100
100
100
100
100
100
100
100
100
100 100
61
660
95
56
95
894678
81
1008
0
0
70
10099
6
9589
46
82
60
14
12
9999
9380
0
4
70
10093 98
0
100
54
88
10095
64
43
93
9444
96100
100
100100 9897
53
10096
92 5
55
10098
97
100
92100
100
89
97
76
97
100100
98
97
100
81
97
100
100
100
100
100100
100 99100
30
100
59
100
10086
100100
100
100
84100100
100
97
100
100
0
100
100100
100
100
100100
100 100100100
100 100
97
100 100100
100 100100100
100 0
100
100
97
100100
100
100
100
100100
100
100
100100
100
100
100
100
100
100
100
100
100
Perennial Cover (2011) Impervious Cover (2011)
Water Withdrawal Index
Health Score Distributions: Big Fork River Min: 79 Max: 100 Median: 98.0 Mean: 96.64 Standard Dev: 2.97
Altered Streams
Health Score Distributions: Big Fork River Min: 0 Max: 100 Median: 93.0 Mean: 89.64 Standard Dev: 11.69
Health Score Distributions: Big Fork River Min: 0 Max: 100 Median: 100.0 Mean: 86.92 Standard Dev: 27.11
Health Score Distributions: Big Fork River Min: 100 Max: 100 Median: 100.0 Mean: 100.0 Standard Dev: 0.0