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<br />. . <br /> <br />4. Embankment Protection (continued) <br /> f. Is a bedding/filter analysis and design attached? DYes o No <br /> g. Describe the analysis used for other kinds of protection used (include copies of the design analysis): <br /> Attach engineering analysis to support construction plans. <br />5. Embankment And Foundation Stabilitv <br /> a. Identify locations and describe the basis for selection of critical location for analysis: <br /> D Overall height: Sta. ; height ft. <br /> D Limiting foundation soil strength: <br /> Sta. , depth to <br /> strength $= degrees, c = psf <br /> slope: SS = (h) to (v) <br /> (Repeat as needed on an added sheet for additional locations) <br /> b. Specify the embankment stability analysis methodology used (e.g., circular arc, sliding block, infinite slope, etc.): <br /> c. Summary of stability analysis results: <br /> Case Loading Conditions Critical Safety Factor Criteria (Min.) <br /> I End of construction 1.3 <br /> II Sudden drawdown 1.0 <br /> III Critical flood stage 1.4 <br /> IV Steady seepage at flood stage 1.4 <br /> VI Earthquake (Case I) 1.0 <br />(Reference: USACE EM-1110-2-1913 Table 6-1) <br /> d. Was a seepage analysis for the embankment performed? DYes DNo <br /> If Yes, describe methodology used: <br /> e. Was a seepage analysis for the foundation performed? DYes DNo <br /> f. Were uplift pressures at the embankment landside toe checked? DYes DNo <br /> g. Were seepage exit gradients checked for piping potential? DYes DNo <br /> h. The duration of the base flood hydrograph against the embankment is hours. <br /> Attach engineering analysis to support construction plans. <br /> <br />E. LEVEE/FLOODWALL (CONTINUED) <br /> <br />FEMA Form 81-898, SEP 02 <br /> <br />Riverine Structures Form <br /> <br />MT,2 Form 3 Page 6 of 10 <br />