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~ ~ ~ "ill coordinate this work and meet with the geotechnical enQineer at the proj~ct areas as a part of Rasie Services. MS::C shall p epare a preliminary design of the levee improvements in the Phase II area, as defined above. The preliminary design will address the following concerns: 1. Impact of levee reconstruction on the ~xisting treeS ;n Cols:! Park. 2. Impact of the trees on the new levee section. 3. Special construction materials or techniques which may be incorporated into the levee to avoid or minimize impacts between the trees and the levee and to consider aesthetics. 4. Using the typical, Improved levee section constructed in Phase : and encro03.ching ....hf~ 'rlest levee into the river sec:ion. to preserve the trees. 5. Identify the required hydraulic characteristics of the improved 1 evees, considering the IOO-year flood and freeboard require- ments and pos~cble hydraulic impacts to the existing east levee. The hydraulic "odel will extend from U.S. 160 to State St reet. 6. Estimate construction quantities and construction costs. A preliminary design report will be prepared, submitted and review- ed with the ENTITIES. A copy of the preliminary design report will be submitted to the U.S. Army Corps of Engineers (COE) for comment and review. A qualified arborist will be consulted to identify the impacts and provide recommend,:ions to mitigate the impacts of le- vee reconstruction on the existing trees in Cole Park. No special consultation will be obtained regarding recreation impacts or spe- cial landscaping proposals for the Phase II improvements. Upon the ENTITIES approval or alternate direction of the prelimin- ary design concepts, the 404 Permit Application form will be prepared by MEC and submitted to tne Corps of Engineers for toeir review-and action. F. The final design of improvements will utilize U.S. Army Corps of Engineers (COE) cri~eria as outlined in the engineering manual Design and Construction of Levees (EMIIIO-2-1913 dated, March 31, 1978). Criteria of tne Federal Emergency Management Agency (FEMA) will also be used where applicable. The requirements of the Colorado Water Conservation Board (CWC8), as identified to MEC. E. wi'l also be considered. Conflicts in any criteria, as determined by l~tC. will be resoh'ed at the direction of ENTITIES. The ""ina: design and the rl3ulting plans and specifications for a;l the improvements proposed.for the project areu, shall address: 1. Locaticn, extent and de~ails regarding levee seepage reduction or control 2. Special requirements of levp.€ foundation and embankment 3 Location, rock s~ze and requirlments of the riprap armour 4. Revcqe~atio~ af ~~vpp,