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Rio Grande Floodway at San Marcial water level

River gauge, Rio Grande Floodway, New Mexico, United States

Directions

Right now

Below flood stage

Water level

11.82ft Down 0.71 ft over the last 24 hours

Flow
0.0 cfs
15 20 25 Minor floodstage 24.50 ft Highest onrecord 22.30 ft

History

History
12.012.5ftOct 16Oct 17Oct 18Oct 19Oct 2012.012.5ftOct 16Oct 18Oct 20
Water level Minor flood stage

What this means

The gauge at Rio Grande Floodway at San Marcial reads 11.82 ft, a normal level.

It is 12.68 ft below the flood stage of 24.50 ft.

The level is falling, down 0.71 ft over the past 24 hours. Over the past 30 days it has moved between 11.60 ft and 12.54 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record
22.30 ftAugust 12, 2006

What the stage means on the water

A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.

The National Weather Service puts flood stage for this gauge at 24.50 ft, still 12.68 ft away.

What happens at each level

26.00 ft
Significant overbank flooding is occurring as this is the most water this stretch of the Rio Grande has seen since the great flood of 1904. The railroad bridge just above the river gauge site is likely under water.
24.50 ft
Some overbank flooding is in progress. The railroad bridge just above the river gauge may already be impassable.
23.00 ft
The Rio Grande is near to above bankfull and the railroad bridge just north of the river gauge may become inundated if further river rises occur.
11.82 ft
Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

RankLevelDate
122.30 ftAugust 12, 2006
221.70 ftMay 28, 1994
321.43 ftSeptember 16, 1980
421.40 ftJune 7, 2005
521.26 ftAugust 28, 2008
621.25 ftMay 29, 1995
719.40 ftMay 11, 1985
817.94 ftJune 8, 1984
916.77 ftMay 31, 1980
1016.40 ftAugust 15, 1967

Weather at the gauge

The forecast is not available right now.

Sunrise 07:17 AM Sunset 06:29 PM Daylight 11 hr, 12 min First quarter 69%

Map

Other gauges on the Rio Grande Floodway

Gauge Level Compared with normal 24 hours Distance
Rio Grande Floodway near BernardoRiver gauge, Rio Grande Floodway 89.0 cfs Normal −8.4 cfs 52 mi
Rio Grande Floodway at San AcaciaRiver gauge, Rio Grande Floodway 9.24 ft Below flood stage ±0 40 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Rio Grande Conveyance Channel at San MarcialRiver gauge, Rio Grande Conveyance Channel 173 cfs Normal +16.0 cfs 0.6 mi
Rio Grande above Us Highway 380 near San AntonioRiver gauge, Rio Grande 234 cfs Normal +234 cfs 19 mi
Rio Grande at Narrows in Elephant Butte ReservoirRiver gauge, Rio Grande 117 cfs Normal −10.0 cfs 22 mi
Rio Grande at Bridge near EscondidaRiver gauge, Rio Grande 38.1 cfs Low −1.1 cfs 31 mi
Elephant Butte ReservoirReservoir 4,296.05 ft Low 33 mi
Rio Grande below Elephant Butte DamRiver gauge, Rio Grande 0.6 cfs Very low ±0 39 mi
Salt Creek near TularosaRiver gauge, Salt Creek 0.8 cfs High +0.4 cfs 44 mi
Malpais Spring near OscuraRiver gauge, Malpais Spring 6.3 cfs Very high ±0 48 mi

Questions and answers

What is flood stage for the Rio Grande Floodway at San Marcial?

The official flood stage is 24.50 ft. The level is currently 12.68 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Rio Grande Floodway at San Marcial today?

On Oct 20, 2026, 07:45 AM MDT, the water level was 11.82 ft. Down 0.71 ft over the last 24 hours.

Is Rio Grande Floodway at San Marcial rising or falling?

Down 0.71 ft over the last 24 hours.

Is the level of Rio Grande Floodway at San Marcial normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Rio Grande Floodway at San Marcial?

The highest level on record is 22.30 ft on August 12, 2006.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:08358400 (Agency page)
Coordinates
33.67908, -106.99700 (WGS84)
Vertical datum
NAVD88
Update interval
every 15 minutes
Licence
Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Water level 11.82 ft 2026-10-20 13:45 Provisional
Flow 0.0 cfs 2026-10-20 13:45 Provisional

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How to cite

U.S. Geological Survey: Rio Grande Floodway at San Marcial (usgs:08358400). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-mexico/rio-grande-floodway-at-san-marcial

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.