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1 1 . 1 1 I 1\ -17- "The information portrayed on the following drawings is for planning purposes only and is intended to provide the capability for staged development of a total compatible drainage system. The drawings are not to be construed as final design drawings nor are they to be used for construction purposes." represents the flood plain which should be regulated. As changes will occur in the flood plain which have not been considered in this analysis, a special note has been added to the title sheet which reads as follows: is purposely limited to avoid use of the drawings as final design or construction drawings. The following statement has been noted on Sheet I of the planning drawings: 1 1 I I I I I I .' . 1\ I The information portrayed on the drawings is of sufficient detail to allow for staged development in separate reaches of the creek with the assurance that any constructed facilities will be compatible with the planned, overall system when total implemen- tation is completed. Individual improvements and private development may proceed in the areas on and adjoining the creek with the assurance that facilities constructed will also be compatible with the overall drmnage system when completed. "Plood water surface elevations and flood plain boundaries are often revised by road and bridge construction, flood plain development, flood control improvements, or natural processes. Prior to utilization of this report for planning or design purposes, the user is advised to contact the Urban Drainage and Flood Control District or the Colorado Water Conservation Board to determine if the information in this report has been amended." The accuracy of available information on utilities cannot be relied upon for final design. All major facilities shown on existing utility maps which would affect improvements along the creek have been shown. Prior to implementation of final design and construction, it is imperative that the exact locations of the critical facilities be defined very accurately by field measure- ment. It is not intended that the information portrayed on the drawings for the recommended improvements be of sufficient detail to justify a final design of individual structures without extra, detailed investigations of surrounding utilities, street grades, house elevations, soils information and other factors necessary for final design. Complete final construction plans and specifications must be prepared on any portion of this stream prior to construction of the proposed facilities. Construction plans should deal with the structural design of all facilities, detailed grading plans, treatment of individual utilities and a myriad of other points which are handled in a cursory manner in this report. Although the master plan as prepared will be of great benefit to the designer of final channel improvements and the flood plain manager, the plan by no means solves all the questions of design and construction of the proposed improvements. One of the primary uses of the preliminary plan will be for right- of-way acquisition. The approximate location of the areas suggested for acquisition are delineated on the drawings but exact title and legal information is, by intent, not portrayed on the maps. A second important use of these drawings will be for flood plain regulation by Arvada and Jefferson County. The lOO-year flood plain for existing channel conditions, which is updated to reflect basin and flood plain changes since past studies, The following general description of the proposed improvements is organized to coincide with each of the planning drawings. Information contained herein is intended to be descriptive and generally supplemental to that information portrayed on the master planning sheets. In all cases, this information, as well as the information shown on the master planning sheets, is