Girtys Run Above Grant Avenue at Millvale, PA

USGS Site No: 03049819 • Girtys Run • Allegheny County, PA

Girtys Run Above Grant Avenue at Millvale, PA on the Girtys Run is currently at 2 cfs (Low — 22th percentile for this date) . Gage height: 2.40 ft.

Reading from

2
CFS Discharge
2.40
Gage Height (ft)
Low
Flow Condition
Normal
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile Label CFS Threshold Today's Flow
10th Very Low threshold 0
25th Low threshold 3 Today: 2 cfs
50th (Median) Normal (median) 4
75th High threshold 19
95th Very High threshold 0

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

23 11 0 cfs Apr 6 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 — 2.45
May 27, 2026 — 2.57
May 26, 2026 — 2.59
May 25, 2026 — 3.10
May 24, 2026 — 2.73
May 23, 2026 — 2.75
May 22, 2026 — 2.37
May 21, 2026 — 2.38
May 20, 2026 — 2.40
May 19, 2026 — 2.34
May 18, 2026 — 2.34
May 17, 2026 — 2.35
May 16, 2026 — 2.36
May 15, 2026 — 2.37
Apr 21, 2026 — 2.41
Apr 20, 2026 — 2.44
Apr 19, 2026 — 2.58
Apr 18, 2026 — 2.49
Apr 17, 2026 — 2.46
Apr 16, 2026 — 2.44
Apr 15, 2026 — 2.44
Apr 14, 2026 — 2.56
Apr 13, 2026 — 2.40
Apr 12, 2026 — 2.41
Apr 11, 2026 — 2.44
Apr 10, 2026 — 2.46
Apr 9, 2026 — 2.47
Apr 8, 2026 — 2.49
Apr 7, 2026 — 2.55
Apr 6, 2026 — 2.62

Station Information

USGS Site No
03049819
State
PA
County
Allegheny County
Coordinates
40.4778, -79.9700
Drainage Area
13 mi²
Datum (ft)
716.8
HUC Code
05010009
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
8.0 ft
Flood Stage
11.0 ft
Moderate Flood
14.0 ft
Major Flood
18.0 ft

Currently 8.60 ft below flood stage.

Nearby Gauges

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