Warning! This data has NOT been reviewed for accuracy.

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Time series plot showing recent conditions at the lake or reservoir. See tabulated data for details.

Plot last updated at : 13:59 hrs - Fri, 23 Jan 2026

 

                             TRINIDAD LAKE
                           PURGATOIRE RIVER
                       DRAINAGE AREA = 671 SQ MI

                     VOLUME        AREA      ELEV.      FLOW IN CFS
                     IN ACRE-FEET  IN ACRES  IN FEET     OUTLET  SPILLWAY


TOP OF PARAPET WALL  177,713       2,713     6,284


TOP OF DAM           169,699       2,623     6,281               


MAXIMUM POOL         165,283       2,573     6,279.3    6,000   516,230


TOP OF FLOOD CONTROL 120,446       2,086     6,260      5,700    18,600


SPILLWAY CREST       116,330       2,024     6,258      5,600     8,800


SPILLWAY NOTCH CREST  88,668       1,681     6,243      5,300         0


TOP OF IRRIGATION     68,482       1,428     6,230      5,000         0

AUTHORIZED SPACE (INITIAL)
     FLOOD CONTROL    51,000
     IRRIGATION       20,000
     RECREATION        4,500
     
SEDIMENT (75 YR) 39,000
     1986 SURVEY      37,325
     1994 SURVEY      36,284
     1997 SURVEY      35,045
     2009 SURVEY      32,599
     2018 SURVEY      32,267

RECREATION POOL       15,967         625     6,176.5    4,100         0

ZERO STORAGE               0           0     6,115

CONDUIT INVERT             0           0     6,095          0         0

STREAM BED                 0           0     6,081          0         0

COMMENTS
VERTICAL DATUM NGVD29.
ADD 3.45 FEET TO CONVERT ELEVATIONS to NAVD88.
1 INCH OF RUNOFF EQUALS 35,787 AC-FT
FLOOD CONTROL SPACE EQUALS 1.46 INCHES OF RUNOFF
A-C TABLE ADOPTED NOVEMBER 2019