Arizona Water Crisis Calculator — CAP + SRP

Per-city CAP impact · SRP reservoir drought scenarios · Dual-system stress analysis · Live feed loading…

Connecting to feeds…
Lake Mead — loading…
1,046.56 ft MSL
182.44 ft below full pool · 28.5% full · dropping ~0.2 ft/day
Tier 1: 1,075 Tier 2: 1,050 Tier 3: 1,025 Hydro ↓: 1,035 Dead pool: 895
USBR Lower Colorado · reservoir ID 921 ·
Lake Powell — loading…
3,527 ft MSL
24% full · 158 ft above dead pool · 31.7 ft lower than June 2025
Min power: 3,490 Dead pool: 3,370
USBR Upper Colorado · reservoir ID 919 ·
SRP Total Reservoir System — loading…
52% full — 1,180,768 AF
−2,449 AF yesterday · Was 64% one year ago · Inflow at 64% of normal
Roosevelt: 40% Horseshoe: 45% Bartlett: 68%
SRP Daily Water Report ·
Colorado R. Streamflow (DWR)
Total inflow: — cfs
Salt R.: — cfs · Tonto Ck: — cfs · Verde: — cfs
SRP Watershed Connection ·
Lake Mead drop probability — updated June 18, 2026. Currently at 1,046.56 ft and falling ~0.2 ft/day. BOR June 2026 24-month study projects most-probable low of 1,015.77 ft by July 2027 and 1,011.74 ft by May 2028 — nearly 29 ft below all-time record. Powell releases to Mead cut by 1.48M acre-feet through Sept 2026, accelerating Mead's decline. Hoover Dam hydropower significantly curtailed below 1,035 ft. At current rate (~0.18–0.22 ft/day summer draw), Mead reaches 1,034 ft in approximately 68–75 days from today — placing that crossing around late August 2026.
~92%
below 1,034 ft
by end of 2026
~78%
below 1,030 ft
by end of 2026
SRP system total
52% · 1,180,768 AF
Full capacity: 2,270,000 AF · Was 64% June 2025
Roosevelt Lake (largest)
40% full · 664,888 AF
Elevation: 2,093.35 ft · −2,544 AF yesterday
Total inflow today
135 cfs vs 213 normal
Salt R.: 61 cfs (47% of normal) · Tonto Ck: 0 cfs · Verde: 74 cfs
Groundwater backup
270 wells · ~50% capacity
Max ~400K AF/yr · Currently ~150K · 2003 drought: 200K AF/yr
2003–04 critical threshold
25% capacity → cuts
Allocation cut 3.3→2.0 AF/acre (−39%) · Only time in modern era