10-13-08 Drainage and Flooding Committee minutes

Browse Search

k lot z 4~~ ass 0 cia t e s If, however, Project 26 is removed from consideration, Projects 25 and 24 can also be removed from consideration because they have more efficient options. Consequently, the largest cost/benefit drops to only $87,500 (for Project 23) and the largest project cost drops to $8.3 million (also for Project 23). The projects removed from consideration reduce the channels for which projects remain from 10 to 8. Additional removals require more comprehensive considerations that would involve City policy and funding considerations. Recommended Channel Improvement and Detention Pond Projects to Address Flooding Problems Project. . Subdivision! Area Benefiting Type of Project Construction ill Improvement Construction Cost Per Loss Cost Removed1 13 Fairmont Park, Fairmont Park East Channel Widening $781,000 $23,000 14 Brookglen Channel Lining $5,494,000 $29,400 15 Meadow Park, Villa Del Rancho Channel Widening $1,701,000 $47,000 16 Lennox Gardens, L Street Pond for Diversion $1,092,000 $50,000 18 Battleground Estates, Pine grove Valley, P Channel Lining $1,032,000 $54,000 Street 19 Shady River Channel Widening $361,000 $60,200 21 Woods on the Bay, Pine Bluff, Shady Channel Widening $600,000 $75,000 River 23 Meadow Crest, Creekmont, Glen Pond for Diversion $8,314,000 $87,500 Meadows, Fairmont Park, Fairmont Park West Total 8 Projects $19,375,000 1 Total Construction cost divided by the number of structures that have been reported in the past to have flooded and for which recommended projects will alleviate flooding in the future. Thus, in view of project cost/benefits and total projects costs; $87,500 per loss removed appears to be a reasonable breakpoint for deciding whether channel improvements or diversion ponds are EN -12 Klotz Associates Project No. 0127.008.000 January 2009 La Porte Citywide Drainage Study City of La Porte