WSP12639

• File Number: 8220.101.10.A
• Description: Colorado River - Water Projects - Glen Canyon Dam-Lake Powell - Glen Canyon AMWG
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 10/1/2004
• Author: Schmidt - Topping - Grams - Hazel
• Title: System-Wide Changes in the Distribution of Fine Sediment in the Colorado River Corridor Between Glen Canyon Dam and Bright Angel Creek - Arizona - Final Report - 10-01-04
• Water Supply Pro - Doc Type: Report/Study

001530

. Table 6. Locations of cross-sections in Glen Canyon indicating which cross-sections were surveyedl each
year and the dates of those measurements if known.
Distance
from Dam
Section Name (km) 1956 1959 1963 1965* 1975* 1983 1990* 2000
20-30
R.20 1.0 lS-Aug 25-Nov 21-May Sep Jul 19-0ct Sep 10-May
R.19 1.5 lS-Aug 21-May 10-May
Glen Canyon Dam
Gage Station
Cableway 2.3 10-May
20-30
R.18 2.5 lS-Aug 24-Nov 22-May Sep Jul IS-Oct Sep lO-May
R-17 3.4 18-Aug 22-May 11- May
20-30
R-16 4.3 15-Aug 23-Nov 22-May Sep Jul 18-0ct Sep 11-May
R15A 4.6 23-May 11-May
20-30
R.15 5.8 15-Aug 30-Nov 23-May Sep Jul 19-0ct Sep II-May
20-30
R.14 7.5 10-Aug 19-Nov 24-May Sep Jul 19-0ct Sep
R.13 8.9 lO-Aug 24-May 27-Jan
R.12 9.4 10-Aug 24-May 27-Jan
. 20-30
R.11A 10.3 9-Aug 18-Nov 27-May Sep Jul 20-0ct Sep 27-Jan
R.11 11.0 9-Aug 27-May 27-Jan
20-30
R-10 12.8 9-Aug 17-Nov 27-May Sep Jul 20-0ct Sep 26-Jan
R.9 14.4 S-Aug 26-Jan
20-30
R.8 15.0 8-Aug 12-Nov Sep Jul 20-0ct Sep 26-Jan
R.7 15.8 8-Aug 26-Jan
R-6 16.8 7-Aul! 26-Jan
-
20-30
R-5 18.4 7-Aug 9-Nov Sep Jul 21-0ct Sep 26-Jan
R.4 20.1 7-Aug 25-Jan
R-3 21.4 6-Aug
R-2 22.6 6-Aug 25-Jan
R.1 (Old Upper Lees 20-30
Ferry Cableway) 23.9 6-Aug 4-Nov Sep Jul 21-0ct Sep 25-Jan
Old Lower Lees Ferry
Cableway 24.7 24-Jan
Lees Ferry Cableway 25.4 24-Jan
20-30
R-O 27.8 6-Aug 29-0ct Sep Jul Sep 28-Jan
* Exact measurement date not known.
.

5.0 Changes in the Topography of the Main-Channel Bed 29