Colorado Rv below Hoover Dam, AZ-NV

USGS Site No: 09421500 • Colorado River • Clark County, NV

Colorado Rv below Hoover Dam, AZ-NV on the Colorado River is currently at 0 cfs (Unknown) . Gage height: 44.68 ft. This station is at or above flood stage.

Reading from

0
CFS Discharge
44.68
Gage Height (ft)
Unknown
Flow Condition
FLOOD
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 9,050
25th Low threshold 11,700
50th (Median) Normal (median) 15,200
75th High threshold 17,300
95th Very High threshold 28,200

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.

30k 15k 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 — 47.20
May 27, 2026 — 48.00
May 26, 2026 — 47.40
May 25, 2026 — 47.00
May 24, 2026 — 46.19
May 23, 2026 — 46.53
May 22, 2026 — 47.12
May 21, 2026 — 47.46
May 20, 2026 — 47.44
May 19, 2026 — 47.45
May 18, 2026 — 46.58
May 17, 2026 — 48.57
May 16, 2026 — 48.02
May 15, 2026 — 48.46
Apr 20, 2026 — 47.50
Apr 19, 2026 — 47.37
Apr 18, 2026 — 47.20
Apr 17, 2026 — 47.17
Apr 16, 2026 — 47.21
Apr 15, 2026 — 46.99
Apr 14, 2026 — 46.38
Apr 13, 2026 — 46.47
Apr 12, 2026 — 46.42
Apr 11, 2026 — 46.82
Apr 10, 2026 — 47.60
Apr 9, 2026 — 47.53
Apr 8, 2026 — 47.42
Apr 7, 2026 — 47.57
Apr 6, 2026 — 49.02
Apr 5, 2026 — 48.11

Station Information

USGS Site No
09421500
State
NV
County
Clark County
Coordinates
36.0153, -114.7386
Drainage Area
171,700 mi²
Datum (ft)
675.5
HUC Code
15030101
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
11.7 ft
Flood Stage
18.0 ft
Moderate Flood
22.5 ft
Major Flood
28.8 ft

Currently 26.68 ft above flood stage.

Recent Extremes

Max discharge
20,500 cfs
May 8, 2025
Min discharge
1,280 cfs
Nov 27, 2025
Days at flood stage
379

Computed from the local daily-values archive.

Nearby Gauges

Related