environmental deconstruction initiative · the city of lethbridge environmental deconstruction...

The City of Lethbridge

ENVIRONMENTAL DECONSTRUCTION INITIATIVE

INTRODUCTION

‘Deconstruction’ is the selective dismantling of buildingcomponents, specifically for re-use, recycling, and wastemanagement – “construction in reverse”,

It differs from demolition where a site is cleared of its building by themost expedient means

Contributes To Sustainability By;

giving materials a new lifecycle,

lowering the need for virgin resources, thus reducing energy andemissions from the refining and manufacturing process of new materials,

reduces the need for transportation of raw and new materials both formanufacturing and post product delivery,

provides local jobs, - 3 to 6 workers for every 1 employed in a comparabledemolition project, 2

But the prime benefit of this innovation is that solidwaste from conventional demolition is diverted fromlocal landfills.

construction and demolition (C & D) waste accountsfor approximately 20% of the solid waste stream at theLethbridge landfill,

A landfills basic commodity is selling cubic meters of‘air’ which is especially relevant as C & D wastecompacts less than normal mixed stream waste, thusconsuming up to 25% more area.



3

ECONOMIC POTENTIAL

Varies from project to project.

The amount of time and cost of labor can be a drawback.Harvesting materials from a structure can take weeks, whereasdemolition may be completed in roughly a day.

Some of the costs, if not all, can be recovered.

reusing materials in future projects,

selling reclaimed materials,

donating materials for income tax write-offs,

avoiding transportation and landfill “tipping fees” ,



4

As the City of Lethbridge continues with this innovation we have found that the local

contractor’s ingenuity in finding new uses for reclaimed materials is ever increasing and the City

is benefiting greatly



5

PROCESS

Hazardous materials are identified and properlyabated to render a safe and clean site.

A ‘waste streaming’ specialist is engaged,

assess achievable goals,

further aid the contractor in the successful diversion ofC & D materials,

monitor and record the disposal of all materials,

prepare a detailed report of the projects success,



6

‘Waste Streaming’ process,

involves identifying and assessing various buildingelements so that prearranged ‘homes’ can be found forusable materials prior to even starting work.

Quantifying waste material is based on a percentageof the C & D material weight of all; building materials,

furnishings,

equipment,

site elements, such as parking lots, swimming pools,sidewalks, driveways,

The successful contractor is awarded salvage of allmaterials,



7

SUCCESS STORIES The City’s first waste streaming project was the 2007

deconstruction of a hotel constructed in 1889.Deconstruction was found to be a new method ofbuilding removal in the area and some project‘growing pains’ were experienced.

However through time, the local industry has gaineda better understanding of this process and while eachproject is different, the percentage of successfuldiversion of materials has significantly increased.



8



BRIDGE INN HOTEL

9

BRIDGE INN HOTEL1350 m2 (14,530 sf) - 3 story, 50 patron rooms,

Deconstruction time frame:

May 2007 to June 2007

Project Costs totalled:

$497,700

Haz Mat Abatement: $314,500

Deconstruction: $183,200



10



11

Interesting accounts of salvage include; 125 pallets of brick and 6 pallets of sandstone were

salvaged,

a local resident bought 3000 bricks to finish the exteriorof his garage,

a resident bought miscellaneous wood and sandstonepieces to build a bedroom suite,

a local antique shop bought cast iron radiators andwooden door frames for resale,

Ducks Unlimited used concrete for an erosion controlproject near Stirling Alberta,

the City retained 9 pallets of sandstone and 1 pallet of600 bricks for future projects,



12

Bridge Inn Hotel Project

55.4%

C & D Waste Diverted



13

VILLAGE INN MOTEL



14



15

VILLAGE INN MOTEL1,114 m2 (11,990 sf) - 2 story, 32 patron


November 2008 to April 2009


$277,000





16



17

Interesting accounts of salvage include;

methods of sale included, on-site signage, phone-ins;drive-bys;,

a resident removed 2”x 4’’s manually for reuse inbuilding a residential garage.

a resident salvaged most of the windows to construct a54’ x 9’ x 10 ft high green house on his acreage.

a local Hutterite colony dismantled and salvaged theroof joists, mechanical units and industrial washer &dryer for use on their colony,

the contractor salvaged exterior metal handrails to bereused as deck railings,



18

flagstone and brick was sold for residential projects,

the contractor salvaged halogen yard lights for reuse intheir yard,

bathtubs were sent to a local reuse store for sale andsome were taken by local farmers for use as wateringtroughs,

asphalt was recycled as resurfacing material for a localparking lot,

Lafarge used the majority of the concrete and concreteblock to build a base structure and breakwaterstructure,



19

ADDITIONAL PROJECT BENEFITS

Cooperated with a Local Housing Authority to offer low cost temporary housing for employed

homeless over winter months,

Motel bed mattresses offered to departing patrons,

Motel furnishings were auctioned providing additional proceeds,



20

Village Inn Motel Project

90.3%




21

COMMERCIAL

WAREHOUSE



22



23

COMMERCIAL WAREHOUSE

1,160m2 (12,490 sf) - farm implement dealership


March 2009 to April 2009


$18,800

Haz Mat Abatement: minimal




24



25


aluminum overhead door panels were reused for signbanners by a local sign company,

large steel sign was reused for a new sign elsewhere,

chainlink fencing reused by a local contractor,

weathered “barn boards” and some beams weresalvaged to build a deck,

“barn board” roof decking was salvaged to finish a smallbarn interior, and for mounting trophy animals at ataxidermy shop,

the majority of the timber columns and rafters weresalvaged to build a large camp kitchen facility,



26

Commercial Warehouse Project

95.5%




27

MULTI-FACILITY PROJECTCommercial Shop / Dealership - 351 m2 (3,779 sf)

Single Family Residence - 131 m2 (1,410 sf)

Pump House & Water Storage Tank - 155 m2 (1,670 sf)



28



29

7 Bay Heavy Vehicle Shop – 783 m2 (8,433 sf)

Metal Sand Storage Quonset - 590 m2 (6,350 sf)

Concrete & Metal Salt Storage Shed - 67 m2 (720 sf)



30



31

MULTI FACILITY PROJECT

total building area: 2,077 m2 (22,360 sf)


September 2009 to January 2010


$247,100





32



33


A local Hutterite colony dismantled and salvaged a over half of the 7 Bay Vehicle Shop,

the majority of mechanical fixtures were also salvaged for reuse by a local Hutterite colony,

glu-lam beams, purlins and some roof decking was salvaged for City of Lethbridge reuse in a Leed Gold Project,

metal beams were salvaged for reuse by the contractor,

chainlink fencing was reused by a local contractor,



34

Multi Facility Project

92.1%




35

IGA BUILDING &

JUDGES BOOTH



36

IGA BUILDING & JUDGES BOOTH

total building area: 2,370 m2 (25,510 sf)


September 2010 to December 2010


$224,200





37



38


a local farmer purchased the roof system including steelbeams to build a new equipment shop,

a local farmer purchased heating units and theindustrial capacity hot water tank,

salvaged concrete was broken up and used as base fillmaterial to build up low areas at other local projects,


Building was used as a temporary archives storage facility until completion of another project,



39

IGA &Judges Booth Project

90.6%




40

16 HOUSE RESIDENTIAL NEIGHBORHOOD



41



42

16 HOUSE RESIDENTIAL NEIGHBOURHOOD

total building area 1,063 m2 (14,440 sf)


Residence Removal - March 2010 to March 2011Basement Clean-Up - March 2011 to June 2011


Profit of $72,050

Income from sale of houses: ($86,000)

Basement Clean-Up: $13,950

(Remaining foundation & site cleanup works included in road project)



43



44



45


all houses were sold to three Building Movers and threeprivate citizens, and relocated throughout SouthernAlberta, (Lethbridge, Taber, Grassy Lake, Raymond,Coaldale, Stirling, Calgary),

hard surface site elements are slated to be recycled onsite and used as clean fill for a local road project,

miscellaneous site elements were reclaimed for reuse bythe City, (street lights, fire hydrants, catch basin covers,electrical transformer,)

Contractor salvaged misc. items (wood deck,underground copper from transformer, steel fenceposts,fence boards,)



46

16 House Residential Neighborhood Project

93.8%




47

With a further

100%of the remaining hard surface


(residential and City sidewalks, patios, driveways, road surface & curb and gutter) to be processed into clean

fill for the new road project



48


Cooperated with a Local Housing Authority to offer low cost temporary housing,

Police K-9 & Tactical Team Training,

Police Training exercises increased a police presence in the neighborhood which helped mitigate

concerns of vandalism and unauthorized entry,



49

CONCLUSION

In adopting deconstruction as a responsible means of building disposal,

to date Lethbridge Facility Services has successfully diverted 9,478 tonnes of C & D waste or the

equivalent volume of 70 average 2000 square foot houses from entering local landfills,

in turn resulting in only 1038 tonnes or the equivalent volume of only 7.7 houses being

landfilled.



50

AWARDSThe City of Lethbridge Facility Services is honored to have

been recognized and receive local, provincial and international awards due to their deconstruction

initiatives.

ALLIANCE FOR INNOVATION –OUTSTANDING ACHIEVEMENT IN LOCAL GOVERNMENT

INNOVATION AWARD 2011

RECYCLING COUNCIL OF ALBERTA –R’s OF EXCELLENCE - MUNICIPAL LEADERSHIP AWARD 2010

LETHBRIDGE ENVIRONMENT WEEK –GREEN LIST 2010 AWARD - ORGANIZATION



51

Detailed project report outlining all projects is available at:

www.lethbridge.ca

Search: “Deconstruction”



52

www.lethbridge.ca

QUESTIONS

[email protected]



53

environmental deconstruction initiative · the city of lethbridge environmental deconstruction...

Documents