Lower Monongahela HUC8 05020005
A 3,816 km² sub-basin of the Ohio region in PA, WV. 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
76
Healthy
Drought index
0
None
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 5 reporting
Median flow
516%
p89 of record
Water assets
4,056
949 springs · 1,489 wells
USGS gauges (9)
- Redstone Creek at Waltersburg, PA0307450045 cfsp77 · above normal
- Dunkard Creek at Shannopin, PA0307200072 cfsp89 · above normal
- South Fork Tenmile Creek at Jefferson, PA0307300067 cfsp89 · above normal
- Thompson Run at Turtle Creek, PA0308480046 cfsp92 · much above normal
- Monongahela River near Masontown, PA030726559,120 cfsp93 · much above normal
- Turtle Creek at Wilmerding, PA0308469841 cfsno long-term record
- Monongahela River at Braddock, PA0308500012,800 cfsno long-term record
- Ninemile Run above McFarren St nr Swissvale, PA0308504983 cfsno long-term record
- Streets Run at Hays, PA0308510014 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 0 | 0 | 0/5 | p89 |
Top water assets
- 71PA Well AG 293well
- 71PA Well AG 628well
- 65Monongahela River At Braddock, Pariver
- 65Braddock Locks And Damreservoir
- 65Ninemile Run Above Mcfarren St Nr Swissviale, Pariver
- 65McCourtney Runriver
- 65Mingo Creekriver
- 65Thompson Runriver
- 65Grays Landing Lock And Damreservoir
- 65Dunkard Creek At Shannopin, Pariver