FLOOD06515 - Laserfiche WebLink

Home Browse Search

FLOOD INSURANCE STUDY 1.0 INTRODUCTION 1.1 Purpose of Study The purpose of this Flood Insurance Study is to investi- gate the existence and severity of flood hazards in the unincorporated areas of Las Animas County, Colorado, and to aid in the administration of the Flood Insurance Act of 1968 and the Flood Disaster Protection Act of 1973. Initial use of this information will be to convert Las Animas County to the regular program of flood insurance by the Federal Insurance Administration. Further use of the information will be made by local and regional planners in their efforts to promote sound land use and flood plain development. 1.2 Coordination The Las Animas County Planning Department supplied corporate boundary maps for areas throughout the county. Conferences were held with the county staff on August 26, 1974, December 10, 1974, and February 11, 1976, to obtain additional information and to field check flood plain delineations. The U. S. Army Corps of Engineers, Albuquerque District, supplied HEC-2 computer printouts for the Purgatoire River, Raton Creek, Colorado Canyon, Prospect Canyon, and Powell Arroyo (Reference 1). In an effort to develop a regionalized discharge versus discharge area curve, as described in Section 3.1, an independent hydrologic analysis was completed. This analysis resulted in different flood discharges from those reported in the Flood Plain Information Report and Flood Insurance Studies completed for the City of Trinidad. In an effort to resolve these differences, coordination meetings were held with the U. S. Army Corps of Engineers on August 10, 1974, and February 14, 1975. In addition, a meeting was held with the Technical Liaison Representative of the Federal Insurance Adminis- tration on October 22, 1975, in a further effort to resolve the hydrologic differences. After further meetings between the U. S. Army Corps of Engineers, the U. S. Geological Survey, and the Technical Liaison Representative between October, 1975, and February, 1976, there was final aqreement as to the flood dis- charges considered to be characteristic of the Purgatoire River and tributaries.