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<br />e <br /> <br />- <br /> <br />, <br /> <br />e <br /> <br />. <br /> <br />e <br /> <br />Table 6.1 Summary of Data Requirements <br /> <br />Units <br /> <br />Data and Acceptable <br />Accuracy <br />1. Buildings: <br />a. 1st flr. elev, + 1 ft <br />b. Value including- <br />contents, + 10% <br />c. Locations,-Nearest X-Sect. <br />2. Crops: <br />a. Area per contour <br />interval <br />b. Value of mature <br />crop in field <br />c. Locations, Nearest X-Sect. <br />3. Flood Plain Geometry: <br />a. 5 or 6 X-section <br />b. Avg valley slope <br />c. Manning Un" values <br />4. a. Gaging Records <br />(1) Gagi ng data <br />(2) Drainage areas <br />b. Watershed Parameters <br />(1) Ilydrophysi ographi c Zone <br />(2) Isoerodent factor <br />(3) Elevation Diff. <br />(4) Drainage area <br />5. a. Hydrograph <br /> <br />ft <br />$ <br /> <br />acre/contour <br />elevation. <br />$/acre <br /> <br />ft/mi <br /> <br />sq mi <br /> <br />ft <br />sq mi <br />Elev. vs <br />time or <br />Q vs time <br /> <br />b. Hydrograph Factors <br />(1) Length of longest <br />watercourse, L <br />(2) Elev. difference <br />6. Soils properties <br />a. Soil Types <br /> <br />mi <br />ft <br /> <br />b. Grain Size Distr. <br />7. Scour In story <br /> <br />8. Channel Morphology <br /> <br />9. Construction Costs <br /> <br />10. a. Traffic Data: <br />(1) Initial ADT <br /> <br />(2) Design ADT <br />(3) Traffi c Mi x <br />(4) Vehicle <br />Running Costs <br />*WPRS is the U.S. \Jater and <br />Reclamation <br /> <br />Veh/day <br /> <br />" <br /> <br />Source <br /> <br />Surveys <br />ReM Offices <br />Rea ltors <br />Quad. Map <br /> <br />Aeri al Photo. <br />Quad. Map <br /> <br />Where Used <br />In Analysis <br /> <br />B.W. Damage <br />" <br /> <br />" <br /> <br />" <br /> <br />" <br /> <br />" <br /> <br />" <br /> <br />Field Surveys Hydraulic <br />Low Water Elev. Analysis <br />at Gage Stations <br /> <br />USGS, SCS <br />CDE, WPRS* <br /> <br />Ref (20) <br />Ref (20) <br />Quad. Map <br /> <br />USGS, SCS, <br />COE, WPRS <br /> <br />Quad. Map <br />Quad. Map <br /> <br />Split Spoon <br />Sample <br />Sieve Anal. <br />Maintenance <br />Records <br />Sequent ial <br />Aerial Photos <br />C & M Unit or <br />Bridge Unit <br /> <br />Traffic and/or <br />Pl anning Units <br />" <br /> <br />" <br /> <br />Hydro. Analysi s <br />For Caged Sites <br /> <br />Hydro. Analys i s <br />For Ungaged Sites <br /> <br />Traffic Losses <br />Emba nkme nt <br />Damage <br /> <br />Traffic Losses <br />Emb. Damage <br />Constructi on <br />Costs in <br />Conjunct ion <br />W /Scour Est. <br />II <br /> <br />" <br /> <br />" <br /> <br />" <br /> <br />Annua 1 Ca pita 1 <br />Costs <br />Traffic Losses <br /> <br />" <br /> <br />" <br /> <br />$/mi 1 e " " <br />Power Resources Service, previously the U.S. Bureau of <br /> <br />23 <br />