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<br />Table <br />1 Dr4inage Areas in watershed of Purgatoire River. . <br />2 Highest Ten Dawaging Floods in Order of Magnitude. <br />3 Bridges Across Purgatoire River and Tributaries--. <br />Descriptions <br /> <br />CONTENTS <br /> <br />P"ge <br /> <br />PREFACE. . <br /> <br />" <br /> <br />BACKGROUNDINFORMJ<TION <br /> <br />, <br />, <br />, <br />, <br />, <br />, <br />; <br />, <br />U <br />U <br />U <br />" <br />" <br />" <br />" <br />" <br />n <br />n <br />n <br />" <br />" <br />;; <br />" <br />" <br />" <br />" <br /> <br />,30-31 <br />32-33 <br />" <br />35-36 <br />37-38 <br />39-40 <br />" <br />" <br />" <br /> <br />Settlement... . <br />The Streams and Their Valleys. <br /> <br />PAST FLOODS. . <br /> <br />Sources of Data and Records. <br />Flood season and Flood Characteristics <br />summary of Historie"l Floods <br />Flood Descriptions . <br />CURRENT FLOOD SITOATION. <br />Developments in the Flood Plain. <br />ObstruetionstoFloodflows.. . <br /> <br />Plate <br /> <br />Flood Damage Prevention Measures <br />Flood Warning and Forecasting Services <br />Flood Fighting and Emergency Evacuation Plans. <br /> <br />, <br />, <br />3-15 <br />16-18 <br />19-22 <br />23-25 <br />" <br /> <br />FUTURE FLOODS. . <br /> <br />Intermediate Regional Flood. <br />Standard Froject Flood <br />Frequency of Floods . <br />Hazards of Large Floods. <br />Flooded Areas and Flood Oamage <br />Velocities, Rates of Rise, and Duration. <br />Obstructions <br /> <br />~7.2S <br /> <br />Future Flood Neiqhts <br />- - <br /> <br />INTERPFETAT!ONOFr.Wl'i\. . <br /> <br />(;!JtDF.I,T'-"F.IJFORFLOODPLAINMA-'>;AGEMENT. <br /> <br />GLOSSARY. <br /> <br />i <br /> <br />TABLES <br /> <br />, <br /> <br />Maximum Known Flood Discharges on StJ:eams in the <br />Region of Trinidad, Colorado <br />Flood Characteristics of Purgatoire River and. . <br />Tributaries <br />Bridges Across Purgatoire River and Tributaries--. <br />Elevation Data <br /> <br />; <br /> <br />, <br /> <br />PLATES <br /> <br />General Map. ... <br /> <br />Index Map.-Flooded Areas--Vicinity of Tri~idsd <br /> <br />Flooded Areas. ,. <br /> <br />,.. . <br /> <br />Flood Frofiles--Purgatoire River <br />Flood Profiles--Raton Cre~k, . <br />Flood Profiles--Moores Canyon. <br />Flood Proflle--Fishers Peak Arroyo <br />Flood Pro!ilesu"PortlandAvenuc" Co:lr.yon <br />Flood Profi1es--Hospital Canyon. <br />Flood Profiles--colorado canyon. <br />Flood Profi1e-~Prospeot Canyon <br />Flood Profiles--Pinon Canyon . <br />Flood Profiles--Powe11 i\rroyo. <br />cross sections--purgatoire River <br />CrossSection--Ra,tonCreek <br />Cross Section--MOores Canyon <br />Cross Section--"Portland Avenue", Hospital, and. <br />Prospect Canyons <br /> <br />, <br />. <br /> <br />" <br />" <br /> <br />Cross Section--Colorado Canyon <br />Cross Section--Powe11 Arroyo . <br /> <br />H <br /> <br />Page <br />, <br />; <br />15-18 <br /> <br />n <br /> <br />36-38 <br /> <br />39-42 <br /> <br />Follows <br />Page <br />Hi <br />" <br />" <br />" <br />" <br />" <br />" <br /> <br />" <br /> <br />" <br />" <br />" <br />" <br />" <br />" <br />" <br />" <br />" <br /> <br />" <br />" <br />