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an existing berm which runs along the perimeter of the park. Several short breaks on the parapet wall at this location are provided for access to the streamside of Trailhead Park. These breaks will be sandbagged during design flood occurrence. At Sta 28+30 the soil cement levee is resumed and continued to the upstream side of the 4th street bridge. The levee is interrupted at the 4th and 8th street bridges where the natural ground elevation is equal to the design water surface elevation. Sandbagging will be required across the bridge abutments to provide the necessary free board during occurrence of the design flood. At the downstream side of the 4th Street bridge, the earth levee section is resumed and parallels the Atchison Topeka and Sanl:a Fe railroad embankment from Sta 39+00 to Sta 69+00. From Sta 69+00 the levee follows the existing Fountain Creek bank to its termination point at the Missouri Pacific Railroad north bridge abutment. The levee alignment and details are shown on Plates 3 and 4. 2-05. Several drainage pipes for interior drainage exist along the East levee alignment. The existing drainage pipes will be extended through the soil cement or earth levee. The pipes will then be fitted with a headwall and flapgate. Location and dimension of pipes are shown on Plate 17. 2-06. Channel Improvement. The project design includes channel improvements from the 13th Street Interstate 25 overpass to the COnfluence of the Ark,ansas River and Fountain Creek. The depth of the typical excavation cut section begins 3 feet above the existing thalweg on the wes t s ide of Fountain Creek and at the thalweg on the east side of Fountain Creek. The cut is horizontal up to the excavation control alignment. The excavation then slopes up on a 1 vertical On 2.5 horizontal until the excavation slope meets existi!lg ground surface. Riprap and soil cement are provided as slope protection On the excavated slopes of the channel improvements. Excavated material fou,nd to be unsuitable for levee construction will be wasted in areas designated by the local sponsor as possible waste areas. Typical sections of channel exca~'ation are shown On Plate 8. 2-07. Recreation Facilities. The project plan includes two recreation areas and a jogging trail. Recreation Area No.1 is located between Sta 5+00 and Sta 12+00 along the East Levee. The levee top width is increased 20 het to provide for parking vehicles. Picnic tables and shelters will be located On the streamside of the levee. The recreation area will be cleared and Eleeded to provide cover. Recreation Area No.2 is located between Sta 23+00A arid Sta 30+00A of the channel excavation baseline west. Recreation Area No.2 comprises a picnic area with shelters, a bike ramp to provide access from 8th Street bridge to the recreation area, a seating area and concrete pitd and parking. Recreation Area 1 and 2 are shown On Plate 4. The jogging trail connects an existing trail On the east side of Fountain Creek with arlother existing trail located above the confluence of the Arkansas River and Fottntain Creek. The trail begins at Sta 0+00 of the cast levee and stays on top (If the levee except at bridges where the trail will go under the bridges. The trail continues downstream of the Missouri Pacific railroad bridge paraHeling Fountain Creek. At Sta 99+40, an existing 102 inch diameter sewerline will be capped at local sponsor expense and a low water crossing, incorporated in the recreational facilities, will be constructed above the capped sewerline where it crosses Fountain Creek. The jogging trail will cross the bridge and tie to an existing jogging trail. II-2 . . -~- .