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� <br />� <br />conditions" labeled in the report simply as "hydrology <br />Summary of hydraulic da.ta including channel and floodplain vegetative <br />cover, channel conditions, roughness coefficients, analysis of structure <br />blockage potential and how treated and other miscellaneous data. <br />f. A map depicting the subject watershed, sub-watersheds, channel by <br />reaches and junsdictions involved. <br />g. An index ma.p depicting the subject watershed, channels, jurisdictions <br />involved, and the individual plan and profile map covera.ge. <br />h. Tabulation of flood hazard information for each cross-section including <br />section number, reference line stationing, thalweg elevation, 10-, 50-, and <br />100-year discharges, 10-, � 0-, 100-year water surface elevations, top <br />width of 100-year floodplain, mean velocity, top width of proposed <br />floodways, floodway widths on lefr and right side of thalweg or reference <br />line, floodway water surface elevations, and mean velocity in floodways. <br />All data reported in these ta.bles shall be backed up by final backwater <br />calculations for floodplain and floodway. <br />The plan and profile information sha11 be drafted in ink by ENGINEER on <br />22" x 34" plan and profile mylar sheets provided by COUNTY to <br />ENGINEER. The informaticn �ortrayed shall include, but not be limi���:. <br />to: a reference line down the center of the low flow channel; limits of 100- <br />year floodplain based on 100-year flows for a"future watershed <br />condition" and existing channel conditions; profiles showing the bottom of <br />the channel or thalweg, left and ri�uht bank where applicable, and 10-year <br />and 100-year water surface profiles; cross-sections of crossing structures; <br />t��pical cross-sections at appropriate scales on same drawings and/or on <br />separate drawings, design flows and velocities at cross-section locations;� <br />location of all cross-sections used in hydraulic computations; and a� <br />sufficient number of flood contours to enable reconstruction of the 100- <br />year water surface profile to an accuracy of 0.2m. In preparation of <br />drawings, ENGINEER shall use line weight, lettering and drafting <br />techniques necessary to insure production of legible printed copies at an <br />e�act �0 percent reduction in the printed report. <br />2.C2. The report shall be prepared and presented to COLJNTY for approval. A <br />specified number of copies of the final report will be printed by ENGINEER <br />