Watershed Health Report

Big Fork River Watershed

HUC 8: 09030006  DNR Major: 77
Major River Basin: Rainy River

Area: 2,055 square miles
Stream Length: 1,473 miles
Lakes Area: 57,395 acres

Watershed Mean Health Score: 78

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Overall Watershed Score
Mean Watershed Score:
|
78
Minimum Index Score:
|
33
Hydrology Health Scores
Mean Watershed Score:
|
90
Minimum Index Score:
|
69
Index:
Perennial Cover:
|
97
Impervious Surface:
|
100
Water Withdrawal:
|
100
Hydrologic Storage:
|
84
Flow Variability:
|
69
Geomorphology Health Scores
Mean Watershed Score:
|
68
Minimum Index Score:
|
55
Index:
Soil Erodability:
|
77
Groundwater Contamination:
|
73
Climate Vulnerability:
|
55
Biology Health Scores
Mean Watershed Score:
|
58
Minimum Index Score:
|
33
Index:
Terrestrial Habitat Quality:
|
61
Stream Species:
|
77
Species Richness:
|
59
At-Risk Species:
|
33
Connectivity Health Scores
Mean Watershed Score:
|
75
Minimum Index Score:
|
61
Index:
Terrestrial Habitat Connectivity:
|
67
Aquatic Connectivity:
|
61
Riparian Connectivity:
|
98
Water Quality Health Scores
Mean Watershed Score:
|
97
Minimum Index Score:
|
95
Index:
Non-Point Source:
|
95
Point Source:
|
99
Water Quality Assessment:
|
98

WAT Score
The Watershed Assessment Tool measures five components of watershed health. These components are: Hydrology, Geomorphology, Biology, Connectivity and Water Quality. Each component contains 3-5 health index scores. The index scores are combined to create a component score. The component scores are also combined into an overall mean (average) watershed health score; and the index identified with lowest score is the watershed minimum health score.
 
Please go to the Watershed Health Assessment Results page for more information.