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<br />Cross sections for portions of Fountain Creek were obtained from maps compiled by
<br />Bohannan and Huston, Inc" in 1972 (Reference 30), as well as from aerial topographic
<br />mapping compiled by Hogan and Olhausen, Inc, , in 1975 (Reference 3 I), Cross sections for
<br />Jimmy Camp Creek and its tributaries were compiled from aerial photographs taken by the
<br />SCS in 1973 (Reference 32), Cross sections for Sand Creek were obtained from aerial
<br />topographic maps prepared by the SCS in 1972 (Reference 33), with cross sections of Sand
<br />Creek East Fork, Sand Creek Center Tributary, Sand Creek East Fork Subtributary, and
<br />portions of Sand Creek being obtained from aerial topographic maps compiled by Landmark
<br />Mapping, Ltd" in 1981 (Reference 34), Cross sections for Cottonwood Creek above
<br />Woodman Road were obtained from topographic maps prepared by the USACE in 1975
<br />(Reference 35), Cross sections for Monument Creek below the U,S. Air Force Academy
<br />were obtained from topographic maps prepared by Hogan and Olhausen, Inc" in 1975
<br />(Reference 31), Cross sections for Camp Creek, Cheyenne Creek, Bear Creek, and South
<br />Shooks Run were compiled from aerial topographic photography (References 36 and 37),
<br />Cross sections for Upper Fountain Creek, Security Creek, Widefield Creek, and Windmill
<br />Gulch were compiled from aerial topographic mapping prepared for the USACE by VTN,
<br />Inc" in 1976 (Reference 36),
<br />
<br />Cross sections for Mesa Basin, Douglas Creek South, Douglas Creek North, Rockrimmon
<br />Basin, Cottonwood Creek below Woodman Road, Monument Creek above the U,S, Air
<br />Force Academy, Kettle Creek, Pine Creek, Peterson Field Drainage, Spring Creek, and
<br />Templeton Gap Floodway were obtained from aerial topographic mapping prepared by
<br />Landmark Mapping, Ltd" between 1981 and 1983 (Reference 34),
<br />
<br />Cross-section data for North Monument Creek, Carpenter Creek. Butler Creek, Monument
<br />Creek Bypass, Monument Creek Tributary, and the upper reaches of Monument Creek in the
<br />vicinity of Palmer Lake were obtained from aerial photographs compiled by Hogan and
<br />Olhausen, Inc, (Reference 38), using photogrammetric techniques, All bridges and culverts
<br />were surveyed to obtain elevation data and structural geometry,
<br />
<br />Cross sections for Templeton Gap Lower Tributary were obtained from "as constructed"
<br />channelization plans from the Colorado State Division of Highways (Reference 39),
<br />Cross sections used for the backwater analyses of Sutherland Creek, Williams Canyon,
<br />Ruxton Creek, and Beckers Lane Tributary were obtained from detailed field surveys of each
<br />stream reach, Cross sections used for the backwater analysis of Fountain Creek downstream
<br />of the Road to the Cave of the Winds through Manitou Springs were furnished by the USACE
<br />from the FPI report for the area published in 1974 (Reference 12), For Fountain Creek and
<br />Sutherland Creek, supplemental cross sections were developed from topographic maps at a
<br />scale of ]: I ,200, with contour intervals of 4 and 20 feet (Reference 40), All bridges,
<br />culverts, and other hydraulically significant structures were field checked to obtain elevation
<br />data and structural geometry,
<br />
<br />For detailed flooding sources within Monument, bridge elevations and sizes of openings were
<br />surveyed and measured in the field on February 3 and 4, 1986, These data were combined
<br />with cross-section data taken from a 5-foot contour mapping of the Town of Monument
<br />(Reference 41),
<br />
<br />Locations of selected cross sections used in the hydraulic analyses are shown on the Flood
<br />Profiles (Exhibit I), For stream segments for which a floodway was computed (Section 4,2),
<br />selected cross section locations are also shown on the Flood Insurance Rate Map (Exhibit 2),
<br />
<br />31
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