Rio Grande at Lake Amistad

Highest listed crest 1,135.66 ftFlood stage 1,120.0 ft3 crests since 1974

The Rio Grande at Lake Amistad crested at major flood stage 3 times among the 3 crests the National Weather Service lists from 1974 to 2010. The highest, 1,135.66 ft on September 22, 1974, was major flooding, 15.66 feet above flood stage. 3 other gauges on the Rio Grande crested above flood stage within a week of it.

The gauge

Highest listed crest: 1,135.66 ft; September 22, 1974; 64,400 cubic feet per second
Flood stage: 1,120.0 ft; Major flooding from 1,125.0 ft
Crests at major: 3; 187th of 370 gauges in Texas
Most recent flood crest: July 6, 2010; 1,129.86 ft, major flooding
Location: Val Verde County; Near Del Rio (11.9 mi)
Identifiers: NWS AMIT2; USGS 08450700

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Rio Grande at Lake Amistad

Action stage	1,120.0	0	—	The level at which the NWS or its partners begin to take action
Flood stage (minor)	1,120.0	0	—	Minimal or no property damage, but possibly some public threat
Moderate flood stage	1,122.0	0	—	Some inundation of structures and roads near the stream
Major flood stage	1,125.0	3	Jul 6, 2010	Extensive inundation of structures and roads

Every listed crest

3 crests from 1974 to 2010. Filled: at or above flood stage. Hover a crest for its date and stage.

Crests at or above flood stage, by decade

These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, Rio Grande at Lake Amistad

1	Sep 22, 1974	1,135.66	+15.66	Major	64,400
2	Jul 6, 2010	1,129.86	+9.86	Major	—
3	Oct 5, 1991	1,125.30	+5.30	Major	20,130

The worst floods along the Rio Grande

For this gauge's highest crests, the other gauges on the Rio Grande that crested above flood stage within a week.

September 22, 1974: 1,135.66 ft here, major flooding

Foster RanchTX · Sep 20, 1974 · 36.69 ft · Major
Del RioTX · Sep 21, 1974 · 14.08 ft · Major
Eagle PassTX · Sep 24, 1974 · 22.47 ft · Moderate

July 6, 2010: 1,129.86 ft here, major flooding

Eagle PassTX · Jul 7, 2010 · 35.06 ft · Major
Foster RanchTX · Jul 3, 2010 · 31.52 ft · Major
Del RioTX · Jul 5, 2010 · 14.61 ft · Major

October 5, 1991: 1,125.30 ft here, major flooding

Foster RanchTX · Oct 1, 1991 · 16.01 ft · Moderate

Gauges on the Rio Grande

Flood gauges sharing the river's name, linked within 80 miles of one another.

Flood gauges on the Rio Grande

Del Rio	TX	4.5	38.25 ft, Jun 28, 1954	16
Eagle Pass	TX	16.0	55.99 ft, Jun 1, 1865	9
Foster Ranch	TX	14.0	50.00 ft, Jun 17, 1922	9
Lake Amistad this gauge	TX	1,120.0	1,135.66 ft, Sep 22, 1974	3

Other gauges in Val Verde County

Flood gauges in Val Verde County

Bakers Crossing near Juno	6.0	35.00 ft, Jun 28, 1954	8
Cauthorn Ranch near Juno	8.0	22.57 ft, Jul 18, 2026	2
Pafford Crossing near Comstock	5.0	19.82 ft, Sep 18, 1974	6
Comstock	5.0	10.30 ft, Sep 14, 1986	0
Pandale Crossing	7.0	43.90 ft, Jun 28, 1954	5
Langtry	10.0	38.14 ft, Nov 5, 1978	5
Del Rio	4.5	38.25 ft, Jun 28, 1954	16
Foster Ranch	14.0	50.00 ft, Jun 17, 1922	9

Val Verde County: every hazard · River floods across the country · Texas

NOAA National Water Prediction Service, gauge AMIT2, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.