![Page 1: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/1.jpg)
LID Cost ConsiderationsLID Cost Considerations“ALL Technologies”“ALL Technologies”
Project Life CycleProject Life Cycle
Planning Design
ConstructionOperation
MaintenanceRecapitalizationDecommission
![Page 2: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/2.jpg)
Conventional 244 Lots
Cantura Coves: Cantura Coves: Mesquite, TexasMesquite, TexasD.R. Horton 241 Coved LotsD.R. Horton 241 Coved Lots
Cantura Coves: Cantura Coves: Mesquite, TexasMesquite, TexasD.R. Horton 241 Coved LotsD.R. Horton 241 Coved Lots
Coving:Coving:42% Less Street42% Less Street40% Larger Lots40% Larger LotsMeandering WalksMeandering Walks
![Page 3: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/3.jpg)
3.7
Per A
c
3.7
Per A
c
3.7 Per A
c
3.7 Per A
c
3.7 Per Ac
3.7 Per Ac
Photo: Cantura Cove – Mesquite, Texas
![Page 4: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/4.jpg)
Placitas de La Paz: Placitas de La Paz: Coachella, CaliforniaCoachella, CaliforniaCanaday & CompanyCanaday & Company271 Coved Lots271 Coved Lots
Coving:Coving:
42% Less Street42% Less Street
Same Avg. Lot Size.Same Avg. Lot Size.
Connective WalksConnective Walks
31 MORE Lots!31 MORE Lots!
Conventional Coved
City of Coachella, CaliforniaCity of Coachella, CaliforniaRESIDENTIAL PROJECT RESIDENTIAL PROJECT
OF THE YEAROF THE YEAR20022002
Awarded for Providing Awarded for Providing Beautiful, QualityBeautiful, Quality
Affordable HousingAffordable Housing
![Page 5: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/5.jpg)
![Page 6: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/6.jpg)
Construction Cost ComparisonConstruction Cost Comparison
Patuxent Riding
Conventional Low Impact
Grading /Roads 569,698$ 426,575$
StormDrains 225,721$ 132,558$
SWM Pond / Fees 260,858$ 10,530$
Bioretention / Micro -$ 175,000$
Total 1,086,277$ 744,663$
Unit Cost 14,679$ 9,193$
![Page 7: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/7.jpg)
Green - LIDGreen - LID
Yellow - Conventional Yellow - Conventional
![Page 8: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/8.jpg)
A Comparison of Two Different Land Plans
PROJECTED RESULTS FROM TOTAL DEVELOPMENT
Total SiteLot YieldLinear Feet - StreetLinear Feet - Collector StreetLinear Feet - Drainage PipeDrainage Sections(Inlets, Boxes, Headwalls)Estimated Total Cost
Conventional Plan35821,7707,36010,098103
$4.6 million
Revised Green Plan37521,12506,73379 $3.9 million
ACTUAL RESULTS FROM PHASE ONE
Total Site (engineer’s estimate)Lot YieldTotal Cost Cost Per Lot
Conventional Plan
63$1,028,544$16,326
Green Plan
72828,523$11,507
ECONOMIC AND OTHER BENEFITS FROM LOW-IMPACT DEVELOPMENT
Higher Lot YieldHigher Lot ValueLower Cost per Lot Enhanced Marketability Added Amenities Recognition
17 additional lots$3,000 more per lot than competition$4,800 less per lot80 percent of lots sold in the first year23.5 acres of green space/parksNational, state, and professional groups
TOTAL ECONOMIC BENEFIT More than $2.2 million in savings.
![Page 9: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/9.jpg)
No Cost Stuff No Cost Stuff
1.1. Site Design to Conserve Terrestrial FunctionsSite Design to Conserve Terrestrial Functions
2.2. Disconnection Disconnection
3.3. Grading TechniquesGrading Techniques
4.4. Distributed Controls Distributed Controls
5.5. Multifunctional Use of SpaceMultifunctional Use of Space
6.6. Less Grading and Clearing Less Grading and Clearing
““Optimize the use of these smart design techniques” Optimize the use of these smart design techniques”
![Page 10: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/10.jpg)
Rain Garden Treatment Train Approach
Bioretention CellStorm Drain System
Bioretention Cell
Flow Path
Grass Swale Grass Filter Strip
![Page 11: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/11.jpg)
Rain Gardens
![Page 12: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/12.jpg)
Conventional Conventional DevelopmentDevelopment
![Page 13: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/13.jpg)
Stormwater Pond Problems
• High Design / Construction Costs
• Moderate Maintenance– Functional / Aesthetics
• Consumes Land / Resources
• Limited Effectiveness
• Disease
• Public Safety
![Page 14: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/14.jpg)
LID Development
Conservation Conservation Minimization Minimization Soil Soil Management Management Open Drainage Open Drainage Rain Gardens Rain Gardens Rain Rain Barrels Barrels Pollution Pollution Prevention Prevention
Conservation Conservation Minimization Minimization Soil Soil Management Management Open Drainage Open Drainage Rain Gardens Rain Gardens Rain Rain Barrels Barrels Pollution Pollution Prevention Prevention
Disconnected Disconnected Decentralized Decentralized Distributed Distributed Multi-functional Multi-functional
Disconnected Disconnected Decentralized Decentralized Distributed Distributed Multi-functional Multi-functional
Multiple SystemsMultiple Systems
![Page 15: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/15.jpg)
No Cost Stuff No Cost Stuff
1.1. Site Design to Conserve Terrestrial FunctionsSite Design to Conserve Terrestrial Functions
2.2. Disconnection Disconnection
3.3. Grading TechniquesGrading Techniques
4.4. Distributed Controls Distributed Controls
5.5. Multifunctional Use of SpaceMultifunctional Use of Space
6.6. Less Grading and Clearing Less Grading and Clearing
““Optimize the use of these smart design techniques” Optimize the use of these smart design techniques”
![Page 16: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/16.jpg)
Construction Cost ComparisonConstruction Cost Comparison
Patuxent Riding
Conventional Low Impact
Grading /Roads 569,698$ 426,575$
StormDrains 225,721$ 132,558$
SWM Pond / Fees 260,858$ 10,530$
Bioretention / Micro -$ 175,000$
Total 1,086,277$ 744,663$
Unit Cost 14,679$ 9,193$
![Page 17: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/17.jpg)
Rain Garden Treatment Train Approach
Bioretention CellStorm Drain System
Bioretention Cell
Flow Path
Grass Swale Grass Filter Strip
![Page 18: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/18.jpg)
Rain Gardens
![Page 19: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/19.jpg)
Somerset Cost Savings
• $780,000 Total Cost Savings – Eliminated
• Curb / Gutter $350,000• 4 stormwater ponds $650,000• Pipes / Structures $150,000
– Added • $370,000 for Rain Gardens
![Page 20: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/20.jpg)
Bioretention Bioretention • Shallow Ponding - 4” to 6”
• Soil Depth 2’ - 2.5’
• Sandy Top Soil
• 50% Sand
• 20% Sandy Loam
• 30% Compost
• Under Drain System
• Plant Selection
Aesthetic Value / Habitat Value
Property Value / Low Cost
Low Maintenance
X 2’
Under Drain
![Page 21: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/21.jpg)
Proprietary Devices
2” Mulch
Sandy Filter Media
Drain Pipe
Storm Drain
Roadway
A Grow ing Idea in Stormwater Filt ration.
Optional Infiltration Storage
Volatilization
BioretentionClean-out
Rip-Rap
Biodegradation
Root Uptake
Drains to infiltration storage
Tree Grate
![Page 22: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/22.jpg)
![Page 23: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/23.jpg)
![Page 24: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/24.jpg)
![Page 25: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/25.jpg)
![Page 26: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/26.jpg)
![Page 27: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/27.jpg)
![Page 28: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/28.jpg)
Rain Garden on a commercial project with turf grass near I-395 and Edsall Road.
![Page 29: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/29.jpg)
Rain Garden longitudinal view showing overflow device.
![Page 30: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/30.jpg)
Cost Comparison Proprietory BMP's
Device Type Unit Cost Main.Cost Annual
Storm Solutions Absrobant 5,500$ 455$ Ab Tech Absrobant 5,000$ 1,600$ Bay Saver Hydrodynamic 6,700$ 2,000$ Vortechnics Hydrodynamic 12,000$ 2,000$ CDS Hydrodynamic 15,000$ 2,000$ Fossil Filter Filter Inlet Insert 5,400$ 6,300$ Stormceptor Hydrodynamic 34,570$ 2,000$ Stormtreat Filter Wetland 33,000$ 4,500$ Stormfilter Filter Cartrages 40,000$ 5,000$ Filterra Bioretention 6,000$ 100$
![Page 31: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/31.jpg)
High Flow Rate Filter and Infiltration
Treats 90% of Total Annual Volume
![Page 32: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/32.jpg)
Maintenance Cost - $200 / Year
![Page 33: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/33.jpg)
![Page 34: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/34.jpg)
Perspectives on Perspectives on Implementing Implementing Low-Impact Low-Impact
Developments since 1998Developments since 1998
Waukesha, WisconsinWaukesha, Wisconsin
![Page 35: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/35.jpg)
Use native species in restoring open spaces and in lot bioretetnion landscapingUse native species in restoring open spaces and in lot bioretetnion landscaping
![Page 36: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/36.jpg)
© Applied Ecological Services, Inc.
![Page 37: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/37.jpg)
Home and Lot SalesHome and Lot Sales
Conventional Conventional Village of Jackson
Lot Size: 7,000 – 8,000 ft2
Price: low-mid $40,000$40,000
Low ImpactLow ImpactPrairie Meadows
Lot Size: 7,000 – 8,000 ft2
Price: mid-high $50,000$50,000
![Page 38: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/38.jpg)
Advantages of LID Over Advantages of LID Over Conventional DesignConventional Design
Advantages of LID Over Advantages of LID Over Conventional DesignConventional Design
Added Value of LID Results in:Added Value of LID Results in:
• Lot PremiumsLot Premiums
• Increased Sales VelocityIncreased Sales Velocity
• Increased Sales Volume Increased Sales Volume
• Reduced Debt Service Reduced Debt Service
• Reduced Infrastructure CostsReduced Infrastructure Costs
![Page 39: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/39.jpg)
Lessons Learned Nature Sells!Lessons Learned Nature Sells!Lessons Learned Nature Sells!Lessons Learned Nature Sells!
![Page 40: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/40.jpg)
Biggest Obstacles to LIDBiggest Obstacles to LID
Local Ordinances Local Ordinances and and
Knowledge / Experience Knowledge / Experience of of
Local Building Officials Local Building Officials & &
Consultants!Consultants!
Biggest Obstacles to LIDBiggest Obstacles to LID
Local Ordinances Local Ordinances and and
Knowledge / Experience Knowledge / Experience of of
Local Building Officials Local Building Officials & &
Consultants!Consultants!
![Page 41: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/41.jpg)
![Page 42: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/42.jpg)
![Page 43: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/43.jpg)
![Page 44: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/44.jpg)
![Page 45: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/45.jpg)
![Page 46: LID Cost Considerations “ALL Technologies” Project Life Cycle Planning Design Construction Operation Maintenance Recapitalization Decommission](https://reader035.vdocuments.net/reader035/viewer/2022070407/56649e405503460f94b325bc/html5/thumbnails/46.jpg)