Rocky Arroyo (Rio Hondo)
Streamflow, conditions and background by watershed segment. Data through November 1, 2026.
Where it is
Segments are the HUC8 watersheds the gauges sit in, numbered upstream to downstream. Use the buttons to switch between the state and the river.
- 1Rio Hondo
- river and reservoirs
- gauge
About the Rocky Arroyo (Rio Hondo)
This report follows 32 miles (51 km) of the Rocky Arroyo (Rio Hondo), all within the Rio Hondo watershed segment. At the lower end of the report the river drains about 81 square miles. Downstream of the mapped reach it flows into the Rio Hondo. Named tributaries joining it here include the South Fork Rocky Arroyo. Reservoirs on this reach: Two Rivers Reservoir. 2 gauges with at least 26 weeks of daily flow cover 1963 to 2026.
From the archive: NHDPlus river network, WBD watersheds, NHD waterbodies, TIGER urban areas and the report's gauges.
From the headwaters down
Each watershed segment in order, with last week's flow rated against the same week in 1991–2020.
Segment 1: Rio Hondo
39 cfs last week much above normal.
Rain over the last 3 months: 169% of normal.
Reservoirs
| Reservoir | Completed | Main purpose | Storage, acre-ft |
|---|---|---|---|
| Two Rivers Reservoir (Rocky Dam)Rocky Dam, Two Rivers project | flood control (normally dry) |
From the archive: National Inventory of Dams (USACE) and the reservoir registry.
Water users
Surface water withdrawn, 2020
In the counties this river crosses (Chaves, Lincoln): 44,684 acre-feet. County totals include other streams.
| Use | Share (bar) | Share | Acre-ft |
|---|---|---|---|
| Irrigated agriculture | 92% | 41,185 | |
| Commercial | 5% | 2,219 | |
| Public water supply | 2% | 887 | |
| Livestock | 1% | 393 |
State Engineer, New Mexico Water Use by Categories 2020.
Irrigation districts and acequias
- Pecos Valley Artesian Conservancy District (4,941 acres mapped)
State Engineer's irrigation districts and acequia layers.
Public water systems beside the river
Berrendo Co-Operative Water Users Association
State Engineer's public water systems layer (service areas within 2 km).
Sources
Numbered sources for the statements above, as they were read when the page was prepared.