thunderhead - dnrdnr.mo.gov/geology/wrc/drought/lakesurvey/thunderhead... · 2015-11-16 ·...

0 600 1,200 1,800 2,400 3,000 FEET 0 200 400 600 800 1,000 METERS BATHYMETRIC CONTOUR—Shows altitude of the reservoir bottom. Contour interval 2 feet. Contours tested 2.78 feet vertical accuracy at 95 percent confidence level. WATER SURFACE—Shows approximate elevation of water surface, March 29 through April 3, 2004 (mean water-surface elevation during survey was 967.8 feet, table 32). U. S. GEOLOGICAL SURVEY REFERENCE MARKER— Chiseled arrow located on west side of emergency spillway. Elevation 970.3 feet. EXPLANATION 968 970 THUNDERHEAD LAKE Figure 32. Bathymetric map and table of areas/volumes of the Thunderhead Lake near Unionville, Missouri. Table 32. Lake elevations and respective surface areas and volumes. Approximate elevation of primary spillway structure is 967.3 feet and emergency spillway is 971.3 feet. Elevations referenced to North American Vertical Datum 1988 (NAVD 88). Note: Volumes calculated from surface testing 1.62 feet vertical accuracy at 95 percent confidence level. Elevation Area Volume (feet) (acres) (acre-ft) 932.0 16.8 10.1 934.0 48.7 76.5 936.0 78.0 202 938.0 118 398 940.0 162 678 942.0 208 1,050 944.0 260 1,510 946.0 304 2,080 948.0 356 2,740 950.0 412 3,500 952.0 476 4,390 954.0 537 5,400 956.0 598 6,540 958.0 660 7,800 960.0 721 9,180 962.0 791 10,690 964.0 864 12,340 966.0 940 14,140 967.3 989 15,400 967.8 1,010 15,900 968.0 1,040 16,100 970.0 1,100 18,240 971.3 1,140 19,690 In cooperation with Missouri Department of Natural Resources Putnam County LOCATION MAP MISSOURI 970 90 6 968 68 9 950 90 4 940 950 960 970 968

Upload: others

Post on 13-Aug-2020

6 views

Category:

Documents

0 download

Report

Download

Embed Size (px):

TRANSCRIPT

Page 1: thunderhead - DNRdnr.mo.gov/geology/wrc/drought/lakesurvey/thunderhead... · 2015-11-16 · THUNDERHEAD LAKE Figure 32. Bathymetric map and table of areas/volumes of the Thunderhead

0 600 1,200 1,800 2,400 3,000 FEET

0 200 400 600 800 1,000 METERS

BATHYMETRIC CONTOUR—Shows altitude of the reservoir bottom.Contour interval 2 feet. Contours tested 2.78 feet vertical accuracy at95 percent confidence level.

WATER SURFACE—Shows approximate elevation of water surface,March 29 through April 3, 2004 (mean water-surface elevation during survey was 967.8 feet, table 32).

U. S. GEOLOGICAL SURVEY REFERENCE MARKER—Chiseled arrow located on west side of emergency spillway. Elevation 970.3 feet.

EXPLANATION

968

970

THUNDERHEAD LAKE

Figure 32. Bathymetric map and table of areas/volumes of the Thunderhead Lake near Unionville, Missouri.

Table 32. Lake elevations and respectivesurface areas and volumes. Approximateelevation of primary spillway structure is 967.3 feet and emergency spillway is 971.3feet. Elevations referenced to North American Vertical Datum 1988 (NAVD 88). Note: Volumes calculated from surface testing 1.62 feet vertical accuracy at 95percent confidence level.

Elevation Area Volume

(feet) (acres) (acre-ft)

932.0 16.8 10.1934.0 48.7 76.5936.0 78.0 202938.0 118 398940.0 162 678942.0 208 1,050944.0 260 1,510946.0 304 2,080948.0 356 2,740950.0 412 3,500952.0 476 4,390954.0 537 5,400956.0 598 6,540958.0 660 7,800960.0 721 9,180962.0 791 10,690964.0 864 12,340966.0 940 14,140967.3 989 15,400967.8 1,010 15,900968.0 1,040 16,100970.0 1,100 18,240971.3 1,140 19,690

In cooperation withMissouri Department of Natural Resources

Putnam County

LOCATION MAP

MISSOURI

970

9 06

968

689

950

940

950

960