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REACH COMMENTARY Sheets 8, g, 10, and 11 of 23 Station 1642+00 to 1314+00 Reach Four -- Bates to Colfax Flood Control Alternative: limited Structural Improvements and Floodplain Management limited Recreation Improvements Recreation Alternative: This area has al ready been developed by the Greenway Foundation and the City of Denver. Most of what remains to be done is relatively small in comparison to the $13 million expended to date in the successful ten-mile, 4DO-acre rehabil itat i on of the South Pl atte through Denver. However, several small park areas and parts of the existing trail are in need of additional improvement. Since Denver forms the heart of the metropolitan region and will receive the heaviest trail use, an opposite-bank trail system is proposed. Boat chutes and landings are required at several locations to provide for continuous and safer passage, although most obstructions through the city have already been notched. The excellent existing wildlife habitat along the river should be maintained and improved wherever possible. For example, dense ground cover shoul d be pl anted along the ri verbanks and at Overl and Pond Park, where artificial floating nests and fish stocking can be employed to vastly improve the wildlife resources of the area. !!!5h-!: Annul' 0 , M Cost Routtne Mitnten.nce 1. Trail Mow1 ng 2. Weed Control 3. Debris' Trash Removal 4. Tra11 Sweeping 5. Park PloWing 54,000 LF 54,000 LF 54,000 LF 54.000 IF 90 M. .36 .09 .50 .58 480.00 19.440.00 4,860.00 27.000.00 31.320.00 43,200.00 $125,8ZO.oo COST ESTIMATE ~: Bates Avenue to Colfax Avenue IV-5 Unit Item Quant f ty Cost .!2!!l Parks 1. Landscaping (turf and ,25 AC $40,000 $ 10.000.00 irrigatton) opposite Valverde Park 2. Picnic Area opposite .50 AC 40.000 20.000.00 Frog Hollow Park 3. Overlook Park Picnic LS 30.000 30.000.00 Shelter 4. landscaping of Open Area 8.8 AC 40.000 352,000.00 south of 6th Avenue Pocket Park 5. Expand Frog Hollow Park 4.0 AC 40.000 160.000.00 Subtota 1 : $S72,OOO.OO Trails 1. Hard Surface Tra11 4.1 HI 200.000 820,000.00 Construction - opposite bank 2, R1gnt-of-'flay Acquisition 19,4 ~C 15.000 291.000.00 (opposite bank trail) 3. New Concrete Trai 1 from 2.900 IF 175.00 507.500.00 8th Ave. to 13th Ave. 4, Retaining Walls to 4 locations 30.000 120,000.00 alleviate trail flooding 5. Pedestrian Bridge at LS 150.000 150.000.00 lakewood Gulch 6. Improved 13th Ave. crossing LS IS,OOO 15,000.00 7. Tributary Trails nfa 8. Underpass Construction 7 60.000 420.000.00 (opposite bank trail) A. B. C. Boating 1. Medium Soat Chute lS 2. Safety 8arrier at lS 13th Ave. Boat Chute 3. low.Flow Channel lS downstream of Alameda Ave. 4. Boat landings 14 D. Access 1. Guard Rall 2750 IF 2. Pedestrian Crossings at 3 Grant.Frontier Park, Florida Ave. Pedestrian Bridge and Vanderbilt Park 3. Habitat Park Parking lot lS E. Views/landscaping 1. Tree Thinning 6.0 At 2. Overland Park landscaping a) Native Grass Seeding b) Automatic Irrigation c) Native Landscaping 3. Habitat Park Native Landscaping (trees a shrubs) 4. landscape Screening at Public Works Yards 5. Linear Landscape Planting .6 HI between 8th Ave. and 13th Ave~ 6. linear landscape Planting 2.1 HI adjacent to 1.25 12 AC 12 AC 12 ~c 5 AC 300 LF Subtotal: $2,323.500.00 60,000 60,000.0.. 5.000 5.000.00 2.250 2,250.00 6,000 84.000.00 S\lbtt>tal: $151,250.00 18.00 49,500.00 5.000 15,000.00 40.000 40.000.00 Subtota 1 : $104,500.00 2.000 12,000.00 3.000 36.000.00 15.000 180,000.00 9.000 108.000.00 9.000 45,000.00 16.00 4.800.00 21.000 12.600.00 21.000 44,100.00 Subtotal: $442.500.00 Tot.l: $3.593.750.00 30S Cont1ngency: $1.078.125.00 TOTAl REM.H 4: $4,671.875.00