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HERON BAY MAINTENANCE ASSESSMENT DISTRICT <br />ASSESSMENT DISTRICT NO. 96-3 <br />CITY OF SAN LEANDRO <br />EXHIBIT B <br />A. Cost Estimate <br />Facili <br />Annual Estimated Cost <br />1. <br />Storm Water Lift Station and Detention Pond (SWLS&DP)* <br />$20,000. <br />2. <br />Storm Water Treatment Pond in Phase 1B* <br />5,000. <br />3. <br />Buffer area and trail <br />a) West of phase 1B & 2B <br />$ 15,000 <br />b) North of phase 2B & 3 <br />15.000 <br />30,000. <br />4. <br />Tidal marsh lands <br />a) North, Bunker, and East Marshes <br />$70,000 <br />b) Citation Marsh** <br />65.000 <br />135,000. <br />5. <br />Lewelling Boulevard soundwalls (east of SPRR) <br />2,200. <br />(1,120 linear feet @ $2.00/1.f.) <br />6. <br />Lewelling Boulevard (Roundabout to Wicks): <br />a) curb and gutter (2880 l.f. @ $1.00)= <br />$3,000 <br />b) sidewalk (10,125 s.f. @ $0.20)= <br />2,000 <br />c) landscaping (28,240 s.f. @ $0.35)= <br />10.000 <br />15,000. <br />7. <br />Roundabout (west of SPRR): <br />a) curb and gutter (4401. f. @ $1.00) _ <br />$ 440 <br />b) sidewalk (1,415 s.f. @ $0.20)= <br />280 <br />c) landscaping (6,000 s.f. @ $0.35)= <br />2,000 <br />d) walls (140 1. f. @ $1.00) = <br />140 <br />2 800. <br />8. <br />Subtotal of Maintenance Costs = <br />$210,000. <br />*Estimate provided by Alameda County Flood Control District <br />**Estimate provided by RMI <br />7 <br />