|
<br />I
<br />I
<br />
<br />I
<br />I
<br />I
<br />
<br />"
<br />
<br />I
<br />
<br />Reach
<br />
<br />Arvada
<br />
<br />2
<br />
<br />I
<br />I
<br />I
<br />
<br />,
<br />
<br />I
<br />I
<br />I
<br />I
<br />I
<br />I
<br />I
<br />I
<br />I
<br />
<br /><.
<br />
<br />I
<br />
<br />Arvada
<br />
<br />3
<br />Jeffco
<br />
<br />TABLE VI-4
<br />
<br />PHASE A
<br />
<br />PROBABLE ANNUAL DAMAGES
<br />LEYDEN CREEK;'
<br />(Dollars)
<br />
<br />Des i gn Status Quo
<br />Frequency w/lmprovements Grass-L i ned
<br />2 $ 8,800 $ 10,800
<br />10 8,800 7,700
<br />100 8,800 0*,""
<br />2 37,100 31,700
<br />10 37,100 9,600
<br />100 37,100 o~"*
<br />100 NA
<br />
<br />VI-5
<br />
<br />TABLE V 1- 6
<br />NDr,STRUCTURAL STRATEGY COSTS
<br />
<br />Tools
<br />
<br />Nonstructural
<br />Strategy
<br />
<br />1. Evaluation of existing Flood Plain including
<br />
<br />Monuments and Signs
<br />
<br />2. Selective Flood Proo~ing for d <0.5 feet only
<br />
<br />
<br />3< Flood Plain Regulations
<br />
<br />4. Revise Building Codes and Subdivision Regulations
<br />
<br />
<br />5. Develop Plan for Urban Area Renewal of Flood Plain
<br />
<br />
<br />6, Early Warning System
<br />
<br />7, Insurance and Publ ic Education
<br />
<br />
<br />8. ReI ief and Rehabilitation
<br />
<br />
<br />9. Minor Structural Modification: Bridges and Culverts
<br />
<br />
<br />10. Parks, Recreation and Open Space
<br />
<br />
<br />11. Evaluation on a Regular Basis
<br />
<br />$ 2,OOO/Mile1
<br />
<br />2
<br />2,OOO/House
<br />
<br />5,OOO/Entity3
<br />11
<br />8,OOO/Entity
<br />
<br />15,OOO/Entity5
<br />6
<br />15,000 Total
<br />
<br />6,000 Total7
<br />8
<br />10,OOO/Year
<br />V . 9
<br />ar les
<br />N/A10
<br />11
<br />10, OOO/Yea r
<br />
<br />$
<br />
<br />8,000
<br />
<br />25,000
<br />700
<br />
<br />* Annual damages are estimated only for those alternatives investigated
<br />in a particular reach.
<br />
<br />** Damages in 100-year channels are considered under O&M.
<br />
<br />Reach
<br />
<br />R-l
<br />R-2
<br />
<br />R-3
<br />R-4
<br />R-5
<br />
<br />TOTAL
<br />
<br />L-l
<br />L-2
<br />L-3
<br />
<br />TOTAL
<br />
<br />Houses+
<br />
<br />TABLE VI-5
<br />
<br />STRUCTURES TO BE REMOVED FROM 100-YEAR FUTURE
<br />FLOOD PLAIN TO ACHIEVE BUILDING-FREE FLOOD PLAIN
<br />
<br />Single
<br />Apa r tmen t
<br />Uni ts1d:.
<br />
<br />Mobile
<br />Homes;'
<br />
<br />Conmercial
<br />Un i ts++
<br />
<br />Includes identification of flood plain in field using 2-man survey crew for
<br />3 days; 6 signs; marking of cooperating buildings & fire hydrants; at $2000
<br />per mile.
<br />
<br />2
<br />Estimate based on improving window wells and providing sand bags & related
<br />barriers, plus check valves.
<br />
<br />3
<br />Legal costs for setting up effective regulations enforcement,
<br />
<br />Tota I Cas t
<br />(Mi 11 ion $)
<br />
<br />4
<br />Legal and engineering costs.
<br />
<br />5 Urban planner & legal fees in conjunction with Federal agencies & city staff,
<br />Costs per entity may vary with type of renewal plan.
<br />
<br />2.2
<br />9.9
<br />
<br />6
<br />Engineering costs related to development of plan, designs, & implementation in
<br />
<br />conjunction with District, State & Federal agencies. Work by City staff,
<br />
<br />
<br />7 Setting up of citizens advisory committee, printing of pamphlets & new releases.
<br />Actual costs of premiums not included but considered as an annualized damage cost.
<br />
<br />46
<br />193
<br />
<br />539
<br />139
<br />2
<br />
<br />186
<br />
<br />34
<br />2
<br />
<br />19<0
<br />4.9
<br />0.1
<br />
<br />36.1
<br />
<br />8
<br />Planning and coordination with local civil defense agency, and preparing
<br />plan of action, printing, & distribution to police & sheriff agencies.
<br />
<br />9 For lOO-year bridge & culvert costs, see the Status Quo with Improvements
<br />Al ternate.
<br />
<br />124 (11
<br />Camp I exes)
<br />
<br />6
<br />
<br />919
<br />
<br />34
<br />12
<br />1
<br />
<br />186
<br />
<br />124
<br />
<br />42
<br />
<br />1.2
<br />0.4
<br />0.04
<br />
<br />1.64
<br />
<br />10
<br />Not appl icable for cost.
<br />sources with benefit/cost
<br />
<br />Parks & open space would be funded by separate fiscal
<br />ratio in excess of 1.0.
<br />
<br />47
<br />
<br />,', Mobile homes assumed to be relocated at $500/each
<br /> Average value is $35,000 per house. 11
<br />+
<br />.':..'~ Ave rage value is $25,000 per apartment unit,
<br />++ Average value is $15,000 per commercial unit.
<br />
<br />In conjunction w/UD & FCD, State CWCB staff, & natural hazards geographer on
<br />consultant basis, Includes annual reports to local governments and det~iied
<br />recommendat ions.
<br />
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