Middle Gila HUC8 15050100
A 8,508 km² sub-basin of the Lower Colorado region in AZ. Drought coverage is from the US Drought Monitor (map of 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
39
Stressed
Drought index
211
Severe
Area in D2+
11.41%
0% exceptional (D4)
Gauges below normal
100%
of 4 reporting
Median flow
3%
p5 of record
Water assets
4,478
12 springs · 3,277 wells
USGS gauges (5)
- GILA RIVER BELOW COOLIDGE DAM, AZ.094695001 cfsp2 · much below normal
- GILA RIVER AT KELVIN, AZ.0947400012 cfsp4 · much below normal
- FLORENCE-CASA GRANDE CANAL, NEAR FLORENCE, AZ.0947550013 cfsp7 · much below normal
- GILA RIVER NEAR MARICOPA, AZ.094793500 cfsp10 · below normal
- QUEEN CREEK BELOW WHITLOW DAM NR SUPERIOR, AZ.094785001 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 211 | 11.41 | 4/4 | p5 |
Top water assets
- 67Brady Washriver
- 67Queen Creekriver
- 67Gila Riverriver
- 67Ash Creekriver
- 67Gila River Below Coolidge Dam, Az.river
- 67Brady Washriver
- 67Deer Creekriver
- 67Whitlow Ranch Damreservoir
- 67Coolidgereservoir
- 67Coronado Washriver