Watershed Health Report

Snake River Watershed

HUC 8: 09020309  DNR Major: 68
Major River Basin: Red River

Area: 779 square miles
Stream Length: 1,003 miles
Lakes Area: 66 acres

Watershed Mean Health Score: 46

download health report (PDF/0.5MB)


Overall Watershed Score
Mean Watershed Score:
|
46
Minimum Index Score:
|
4
Hydrology Health Scores
Mean Watershed Score:
|
60
Minimum Index Score:
|
16
Index:
Perennial Cover:
|
16
Impervious Surface:
|
100
Water Withdrawal:
|
100
Hydrologic Storage:
|
25
Flow Variability:
|
58
Geomorphology Health Scores
Mean Watershed Score:
|
52
Minimum Index Score:
|
16
Index:
Soil Erodability:
|
85
Groundwater Contamination:
|
54
Climate Vulnerability:
|
16
Biology Health Scores
Mean Watershed Score:
|
36
Minimum Index Score:
|
4
Index:
Terrestrial Habitat Quality:
|
4
Stream Species:
|
64
Species Richness:
|
46
At-Risk Species:
|
28
Connectivity Health Scores
Mean Watershed Score:
|
18
Minimum Index Score:
|
5
Index:
Terrestrial Habitat Connectivity:
|
5
Aquatic Connectivity:
|
21
Riparian Connectivity:
|
29
Water Quality Health Scores
Mean Watershed Score:
|
66
Minimum Index Score:
|
46
Index:
Non-Point Source:
|
57
Point Source:
|
96
Water Quality Assessment:
|
46

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.