Rapid Creek above Canyon Lake Near Rapid City,sd

USGS Site No: 06412500Rapid Creek • Pennington County, SD

Rapid Creek above Canyon Lake Near Rapid City,sd on the Rapid Creek is currently at 40 cfs (Normal — 25th percentile for this date) . Gage height: 2.14 ft.

Reading from

40
CFS Discharge
2.14
Gage Height (ft)
Normal
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 25
25th Low threshold 40
50th (Median) Normal (median) 71 Today: 40 cfs
75th High threshold 146
95th Very High threshold 520

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.

583 292 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 39 2.12
May 27, 2026 40 2.14
May 26, 2026 44 2.18
May 25, 2026 38 2.11
May 24, 2026 43 2.17
May 23, 2026 32 2.04
May 22, 2026 49 2.23
May 21, 2026 52 2.26
May 20, 2026 56 2.31
May 19, 2026 62 2.36
May 18, 2026 65 2.39
May 17, 2026 65 2.39
May 16, 2026 64 2.38
May 15, 2026 54 2.29
Apr 20, 2026 17 1.79
Apr 19, 2026 16 1.77
Apr 18, 2026 15 1.76
Apr 17, 2026 16 1.77
Apr 16, 2026 16 1.77
Apr 15, 2026 17 1.79
Apr 14, 2026 16 1.77
Apr 13, 2026 16 1.78
Apr 12, 2026 17 1.80
Apr 11, 2026 17 1.80
Apr 10, 2026 16 1.78
Apr 9, 2026 15 1.76
Apr 8, 2026 16 1.78
Apr 7, 2026 17 1.79
Apr 6, 2026 15 1.76
Apr 5, 2026 16 1.78

Station Information

USGS Site No
06412500
State
SD
Coordinates
44.0528, -103.3119
Drainage Area
374 mi²
Datum (ft)
3,401.2
HUC Code
10120110
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
5.0 ft
Flood Stage
7.0 ft
Moderate Flood
9.0 ft
Major Flood
11.0 ft

Currently 4.86 ft below flood stage.

Recent Extremes

Max discharge
65 cfs
May 17, 2026
Min discharge
6 cfs
Feb 20, 2026
Days at flood stage
0

Computed from the local daily-values archive.

Nearby Gauges