Green Girl Land Development Solutions
p 503.334.8634
f 503.892.2321
greengirl@greengirlpdx.com
Sustainable Site Planning Checklist
Consider on-site natural resources.
Water Resources:
Wetlands?
Floodplains?
FEMA Coastal Hazard Areas (Zones V & A)
Evidence of erosion? (shoreline, streamside, etc.)
Shoreline erosion rate?
Wellhead protection areas?
Riparian buffers?
Naturally vegetated swales/drainageways?
Seasonal high water table?
Instream habitat?
Existing hydrology (drainage swales, intermittent,
perennial)?
Problems with run-on from neighboring properties?
Receiving water body for site drainage?
Land Forms:
Steep slopes?
Unique topographic features?
Existing topography, contours?
Depth to bedrock?
Special geological issues (e.g., karst, limestone)?
Existing land cover/uses?
How does size and shape of the site affect stormwater
Are there areas where development should generally be
avoided?
Evidence of soil erosion?
Soils:
Hydrologic soil groups?
Tested infiltration rates?
Erodability?
Swell potential?
Hydric soils present?
Unstable soils/landslide evidence?
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Texture?
Fertility?
Soil biology?
Chemical properties? (pH, macro- & micronutrients)
Contaminants detected?
Livability:
Aesthetics?
Viewsheds?
Sense of place?
Opportunities to create private, semi-private, and public
Noise source?
Microclimate:
Wind tunnels caused by vegetation/building orientation?
Wind breaks?
Solar access?
Temperature variation?
Geothermal?
Evaporation/moisture variation?
Vegetation:
Special status trees?
Threatened or endangered species habitat?
Blocks of habitat and corridors or connections between
habitat patches?
Native plant communities?
Distinctive individual plants or communities?
Vegetation that could provide shade to buildings, parking
lots, or spaces used for mental restoration, social
interaction, or physical activities?
Invasive species/noxious weeds?
Wildfire risks?
Resources to be salvaged (topsoil, boulders, rocks, trees,
etc.) ?
Renewable Energy:
Geothermal?
Wind?
Hydroelectric?
Solar?
Air Quality:
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Pollen sources?
Smoke sources? (controlled burns, wildfire, etc.)
Consider on-site infrastructure/built environment.
Utilities:
Wastewater system?
Stormwater system?
Structures with potential to serve as cisterns? (pools, spaces
under existing buildings, etc.)
Water?
Gas?
Electric?
Communication?
Livabaility:
Beloved infrastructure? (gathering spaces, arbor, etc.)
Cultural:
Historic infrastructure? (signs, bridges, entryways)
Historic register? (local, state, or national?)
Archeological site?
Air Quality:
Loading dock?
Areas of idling?
Outdoor smoking areas?
Land Coverage/Uses:
Total site area
Impervious area:
impervious area covered by evergreens
roof
sidewalks
vehicular pavement
other (swimming pools, basketball court, etc.)
Porous area:
lawn
naturalized
ornamental beds
food gardens
paving surfaces (pavers, mulch, boardwalk)
other
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Contaminants from past uses (leaking tanks, pesticides,
herbicides, etc.?
Existing stressors (noise, odor, excessive light, etc.)?
Infrastructure to be salvaged (asphalt, concrete, buildings
[deconstruction])?
Water Resources:
Fish/mammal barriers to passage?
Off-site drainage?
Drainage patterns before and after finish grading?
Locations of discharge outfalls/points?
Size of discharge outfalls/points?
Type of discharge outfalls/points?
Areas used for storage of soils or wastes?
Erosion and sediment control facilities/structures including
vegetative practices?
Staging/Storage Considerations:
Disturbance area?
Total surface area of the site, broken down by phases of
development?
Timetable for sequence of major events?
Type of material used for fill?
Volume of cut?
Volume of fill?
Recycling area?
Composting area?
Consider off-site/regional natural resources.
Water Resources:
Receiving water body for site drainage?
Major/minor watershed location?
EPA Level III ecoregion (EPA website)
State stream use/standards designation/ classifcation?
Special high quality designations? (e.g., natural rivers, cold
wateror endangered species or communities present?
Rare fishery)
Are there required water quality standards?
303d/impaired stream listing classifcations?
Existing or planned Total Maximum Daily Loads (TMDLs) for
the waterbody?
Aquatic biota, other sampling/monitoring?
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Other special fshery issues?
Downstream flooding problems?
Vegetation:
Major habitat types?
Regional connection to a special habitat system (migratory
routes, wildlife corrdidors, etc., neighborhing publically
owned natural lands)?
Wildfire risks?
Land Development Impacts:
Additional development anticipated for the area that could
lead to further restrictions? (e.g., protection of downstream
land and water uses)
Additional development anticipated for the area that could
lead to further opportunities (e.g., partnerships in multi-site
or regional water quality or quantity controls)?
Nearby construction sites that may have natural materials
that can be salvaged for use on your site?
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Macroclimate:
Seasonal wind direction?
Wind speed?
Annual and monthly precipitation patterns?
Annual solar budget?
Air Quality:
Particulates?
Pollen?
Dissolved pollutants?
Smoke?
Consider off-site/regional infrastructure/built environment.
Utilities:
Sewer and water system serving site?
Storm drainage system?
Gas?
Electric?
Communication?
Livabaility:
Transportation options (mass transit, bicycle & pedestrian
facilities, roadways)?
Recreational opportunities, community resources, and other
amenities?
Existing stressors (noise, odor, excessive light, etc.)?
Walkable?
Neighborhood architectural context?
Cultural:
Historical values, certifed or non-certifed?
Known/potential archaeological values?
Suppliers of materials and services locations:
Native plant nurseries?
Local manufacters/suppliers of building materials?
Deconstruction services?
Re-use facility for salvaged materials (Restore, Rebuilding,
etc.)?
Recycling facility for construction waste?
Air Quality:
Located on busy street?
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Located on truck route?
Areas of idling?
Street canyons?
Consider municipal, state, and federal guidelines/laws.
Master plans (Stormwater, Transportation, Parks,
Watersheds, etc.):
Is development concept consistent with the master plan?
Consistent with goals/policies of the plan?
Preservation of natural resources consistent with priority
areas/maps?
Water Regulations (e.g., ordinances, engineering
standards):
Consistent with local existing regulations?
Wetland regulations?
Tree/woodlands ordinance?
Riparian buffer ordinance?
Open space requirements?
Clustering and/or PUD options?
Overlay districts?
Wellhead protection?
erosion and sedimentation requirements?
Are LID solutions:
required?
or incentivized?
or enabled?
or prohibited?
Reduced building setbacks allowed?
Curbs required?
Swales allowed?
Street width, parking requirements, other impervious
Grading requirements?
Landscaping that allows native vegetation?
Stormwater requirements?
Peak rate?
Total runoff volume?
Water quality?
Maintenance?
State foodplain requirements?
Contaminated sites have followed state “due care”
requirements for soil and groundwater?
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Consistent with state and federal wetland and/or inland lakes
and streams regulations?
Other Regulations:
State and federal threatened and endangered species?
Consistent with county/state road requirements?
Fire Department:
Recommendations for wildfire areas?
Vehicular circulation?
Road widths?
Cul-de-sac/hammerhead requirements?
Consider the programmatic requirements.
Is development concept consistent with the master plan?
Consistent with owner's programmatic needs for sites and
buildings?
Stakeholder Process:
Does the site have current users? Can these uses be
accomodated in the new design?
Who are the new users?
Integrated design team roles defined?
Project principles and goals defined?
Purpose for project and design intent defined?
Future primary and seconday stakeholders identified?
Sustainability goals defined (qualitative, quantitative)?
Stakeholder engagement/charrette?
Gather possible investigative reports and other information from other design team members.
Geotechnical report (geotechnical engineer) including:
boring logs
depth to groundwater table
Infiltration testing (geotechnical or civil engineer) including:
a test for every acre, with a minimum of two tests for site
under 1 acre
flow rates in inches/hour of soil horizons that may be used
for infiltration considering infiltration facility type and
construction by overexcavation after testing to confirm
investigation
sufficient depth to water table and bedrock
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Tree inventory (arborist) including:
common name
tree number corresponding to mapped location
diameter at breast height
health
height
limb spread
maintenance recommendations
hazardous trees to be removed
tree protection recommendations
understory condition
limits of contiguous cover
Instream Physical Inventory including:
This list was lifted word for word from the Salmon Safe Residential Standards. Click here for a live link to that pdf guidance document.
The position of the site within the watershed is documented
and has been mapped.
Research existing watershed-specific restoration or recovery
plans and local salmonid recovery programs.
Identify opportunities to incorporate objectives of these plans
and programs into development planning decisions.
Investigate physical and biotic watershed conditions noting
physical and chemical impairments to water quality including
303(d) lists or designated total maximum daily loads
(TMDLs).
Note biological impairments such as non-native fish.
Evaluate onsite stream crossings to determine priorities for
fish and wildlife passage and flood conveyance.
Identify onsite stream channel deficiencies:
Characterize bank stability and channel incision.
Map onsite 100-year flodplain and channel migration zones.
Instream Biological Inventory:
This list was lifted word for word from the Salmon Safe Residential Standards. Click here for a live link to that pdf guidance document.
Classify stream types in the system as either: (1) fish
bearing, (2) potentially fish bearing, (3) nonfish bearing with
a defined channel connected to a fish-bearing or potential
fishbearing stream, or (4) none of the above.
If no fish are currently present, estimate historic fish
presence/absence in the system.
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Document presence or absence of fish on site either via fish
surveys, use of available data or regulatory habitat
designation, or based on expert interviews.
For onsite streams and rivers classified as either (1) fish
bearing, (2) potentially fish bearing, or (3) nonfish bearing
with a defined channel connected to a fish-bearing or
potentially fishbearing stream, idnetify and map significant
aquatic habitat features (riffles, pools, runs, large wood, etc).
Riparian/Wetland/Vegetation Protection and Restoration:
This list was lifted word for word from the Salmon Safe Residential Standards. Click here for a live link to that pdf guidance document.
Characterize local and watershed riparian habitat extent,
quality and conditions
Estimate percent cover in the tree canopy, shrub layer, and
herbaceous layer, especially in areas adjacent to,
immediately upstream, or immediately downstream of the
site.
Identify, map, and describe all onsite riparian areas by width
of existing buffer and stream length of riparian vegetation
free from intrusions from roads, utilities, and other clearings
(i.e.,riparian continuity).
Identify and map damaged, exposed, or at-risk areas, as
well as locations of invasive species .
Characterize t ypical local terrestrial riparian species
(vegetation, birds, mammals, reptiles, and amphibians).
Site survey including:
Legal:
Right of ways on both sides of all street frontages
property and lot lines with bearings & lengths
all easements
legal description
taxlot info
street names
Surveyor data:
Benchmarks
monuments
iron pipes
brass screws
basis of bearings & elevations
north arrow
Professional stamp and
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contact info for surveyor
Elevation data:
Contours in appropriate intervals (0.5’ for flat areas, 1’ for
average areas, and 2’ for steep areas)
Spot elevations on a 25-foot grid and at changes in grade
such as at walls, curbs (indicate top of curb and gutter
elevations or curb height), flowlines, swales and ditches,
centerline and/or crown or valley, etc.
Both contours and spots should extend at least 10’ beyond
the property line and/or across the street to the curb
Utilities:
Utility vaults such & above-grade fixtures such as gas
valves, water valves, water meters, traffic boxes, fire
backflow assembly, water backflow assembly, fire
hydrants, etc.
Storm structures including catch basins, manholes, water
quality facilities and devices, cleanouts, etc. Include all
relevant elevation date including rim elevations and invert
elevations; pipe size and direction if more than one pipe. In
the public ROW, provide information for at least two storm
manholes or more if necessary so that inverts all along
pipes fronting the property can be found.
Power poles (indicate with a symbol where the guy wires
extend), light poles, traffic poles, overhead lines.
Sewer manholes and cleanouts. In the public ROW,
provide information for at least two sewer manholes or
more if necessary so that inverts all along pipes fronting
property can be found. Subsurface pipe and cable network
marked out by a utility locate company for water lines,
storms sewers, sanitary sewers, telephone, cable, gas, etc.
that serve
Land Cover:the site
Extent of buildings with dimensions of buildings and
dimensions to property lines
The boundaries of all land cover types such as asphalt,
gravel, concrete, bus shelters, etc.
For street frontages, survey should extend across the
street to include curb line, pedestrian ramps, and
sidewalks.
Water features such as wetlands, streams, ditches, ponds,
etc.
Walls (show length & width)
Site furniture such as bollards, benches, fences, etc.
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Trees with greater than 3” diameter, tree wells, major
vegetation such as hedges. Include type of tree and draw
spread of branches to scale and outline of massed trees.
Bibliography
Alameda County Waste Management Authority. (2008, January).
Retrieved from StopWaste.org: http://www.stopwaste.org/docs/bay
American Society of Landscape Architects. (2009). The Sustainable Sites Initiative: Guidelines and Performance Benchmarks.
Sites Initiative: http://www.sustainablesites.org/report/Guidelines%20and%20Performance%20Benchmarks_2009.pdf
David Humber, P. (2006, Nov 28). Survey Guidelines for Land Development. Vancouver, WA, USA: MGH Associates.
Salmon Safe. (2009, Feb). Salmon-Safe Certification Standards for Residential Development.
http://www.salmonsafe.org/urban/salmonsafe-residential.pdf
SEEDA, WWF, BRE. (n.d.). Southwest Sustainability Checklist. Retrieved from Southwest Sustainability Checklist: http://www.checklistsouthwest.co.uk/
Southeast Michigan Council of Governments. (2008). South Michigan Low Impact Deveopment Manual: A Design Guide for Implementers and Reviewers.
Retrieved from LIDManualWeb.pdf: http://library.semcog.org/InmagicGenie/DocumentFolder/LIDManualWeb.pdf
There may be more sources, but when I started this, I didn't think to track them. I apologize to anyone I might've missed.
This list was compiled from a number of sources referenced in the bibliography. It's a tool I made for my business, and I don't mind if
it, if we don't start sharing these kinds of tools the Chesapeake Bay will never get cleaned up, and we'll lose all our salmo
if you could leave my logo and references on this. Obviously, this tool is being made available "as is" and I won't take resp
missing? Contact me so I can add it to future versions!
Thanks so much, and Happy Site Planning! Maria Cahill
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stainable Site Planning Checklist
Comments
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environment.
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ines/laws.
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her information from other design team members.
including:
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tial Standards. Click here for a live link to that pdf guidance document.
tial Standards. Click here for a live link to that pdf guidance document.
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oration:
tial Standards. Click here for a live link to that pdf guidance document.
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January). Bay Friendly Landscape Guidelines: Sustainable Practices for Landscape Professionals.
rg/docs/bay-friendly_landscape_guidelines_-_all_chapters.pdf
e Sustainable Sites Initiative: Guidelines and Performance Benchmarks. Retrieved from Sustainable
Guidelines%20and%20Performance%20Benchmarks_2009.pdf
or Land Development. Vancouver, WA, USA: MGH Associates.
tandards for Residential Development. Retrieved 2009, from Salmon Safe web site:
hecklist. Retrieved from Southwest Sustainability Checklist: http://www.checklistsouthwest.co.uk/
South Michigan Low Impact Deveopment Manual: A Design Guide for Implementers and Reviewers.
g.org/InmagicGenie/DocumentFolder/LIDManualWeb.pdf
didn't think to track them. I apologize to anyone I might've missed.
in the bibliography. It's a tool I made for my business, and I don't mind if you share this list. I mean, let's face
ake Bay will never get cleaned up, and we'll lose all our salmon. It did take a bit of work to compile, so I'd like it
y, this tool is being made available "as is" and I won't take responsibility for how it's used. See somehthing
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Sustainable Stormwater Site Inventory Checklist
TRILLIUM HILL DEVELOPMENT
Tigard, OR
Comments
Consider on-site natural resources.
Water Resources:
na Wetlands?
na Floodplains? (FEMA maps)
na FEMA Coastal Hazard Areas (Zones V & A)
na Evidence of erosion? (shoreline, streamside, etc.)
na Shoreline erosion rate?
na Wellhead protection areas?
na Riparian buffers?
na Naturally vegetated swales/drainageways?
n Seasonal high water table? 5' deep (from geotech report)
na Instream habitat?
y Existing hydrology (drainage swales, intermittent, perennial)? This upland area of Tigard know for seeps, but no evidence on-site
n Problems with run-on from neighboring properties? there are no problems, but there IS forest uphill that drains to us
n Receiving water body for site drainage? off-site
Land Forms:
n Steep slopes? 3-15%
y Unique topographic features? upland hill with deep 5-7' deep soil (uncommon in Tigard)
y Existing topography, contours? on survey
y Depth to bedrock? 5-7'
Columbia River Basalt (per geotech report and Tualatin Watershed
n Special geological issues (e.g., karst, limestone)?
Council)
y Existing land cover/uses?
historic orchard in open field, forested NW corner, numerous trees
y How does size and shape of the site affect stormwater all runoff ends up at sw corner of site where there's a storm sewer
management? where development should generally be
Are there areas
y
avoided? forested NW corner
Trillium Hill, Tigard, OR 25 of 38 by NEED
Soils:
y soil survey mapping? Cornelius & Kinton silt loam, 2-7% & 7-12% (per web soil survey)
y hydrologic soil groups? C
y tested infiltration rates? 5-50 inches/hour (per geotech report)
n erodability?
n swell potential?
n hydric soils present?
n unstable soils/landslide evidence? slope instabaility low & nothing observed (per geotech report)
y texture? silt loam
y fertility? soil appears to suuport healthy veg, mushrooms observed
y soil biology? mushrooms observed
chemical properties? (pH, macro- & micronutrients) to be tested
contaminants detected? to be tested, unlikely
Livability:
y Aesthetics? forested NW corner
y Viewsheds? of Mt. Hood looking east down Lady Marion Rd
y Sense of place? many natives
y Opportunities to create private, semi-private, and public spaces?
lots of previously disturbed areas to build various spaces
n Noise source? relatively isolated in areas of low traffic
Microclimate:
n wind tunnels caused by vegetation/building orientation?
n wind breaks? not all of the ex trees are healthy, will have to come down
y solar access?
excellent southern/decent eastern exposure (per MEP solar report)
y temperature variation?
warmer in field, cooler in forestesd area and under big trees in field
y moisture variation? field vs. forested
Vegetation:
n special status trees?
Habitat for squirrels; birds incl. robins, bald eagles, hawks, stopover for
n threatened or endangered species habitat? migrating Canadian geese (per Audobon Soc visit). Not classified as
significant habitat by Tigard.
Trillium Hill, Tigard, OR 26 of 38 by NEED
blocks of habitat and corridors or connections between habitat
y
patches?
y native plant communities? Western Hemlock-Douglas Fir forest
y distinctive individual plants or communities? Trillium
vegetation that could provide shade to buildings, parking lots, or
y spaces used for mental restoration, social interaction, or physical
activities?
y invasive species/noxious weeds? ivy, blackberry
n Wildfire risks?
y Resources to be salvaged (topsoil, boulders, rocks, trees, etc.) ? topsoil, trees
Renewable Energy:
y geothermal?
closed loop, vertical bore recommended (per MEP geothermal report)
n wind? no significant, steady winds
na hydroelectric?
y solar?
excellent southern/decent eastern exposure (per MEP solar report)
Air Quality:
y pollen sources? trees
n smoke sources? (controlled burns, wildfire, etc.)
Consider on-site infrastructure/built environment.
Utilities:
existing house & mobile home must have a sewer line, but not located
y Wastewater system?
on survey
existing house & mobile home must have a storm drain, but not located
y Stormwater system?
on survey
structures with potential to serve as cisterns? (pools, spaces
y
under existing buildings, etc.) swimming pool, no basements
existing house & mobile home must have a water service, but not
y Water?
located on survey
existing house & mobile home may have a gas line, but not located on
y Gas?
survey
Trillium Hill, Tigard, OR 27 of 38 by NEED
existing house & mobile home must have electric service, but not
y Electric?
located on survey
existing house & mobile home may have a storm drain, but not located
y Communication?
on survey
n Fire hydrants? none indicated on survey
Livabaility:
n Beloved infrastructure? (gathering spaces, arbor, etc.)
Cultural:
n historic infrastructure? (signs, bridges, entryways)
n historic register? (local, state, or national?)
n archeological site? nothing discovered yet
Air Quality:
n loading dock?
n areas of idling?
n outdoor smoking areas?
Land Coverage/Uses:
y Impervious areas? house, trailer, pool, driveway, various small sheds
field is currently being mowed, central courtyard to be maintained
y Pervious maintained areas?
native & herb garden plus community gardens in south corners
Contaminants from past uses (leaking tanks, pesticides,
na
herbicides, etc.? always a residential site, no evidence during site visit
n Existing stressors (noise, odor, excessive light, etc.)?
Infrastructure to be salvaged (asphalt, concrete, buildings
y
[deconstruction])? house, asphalt driveway, keep a portion of pool for rainwater harvesting
Water Resources:
na Fish/mammal barriers to passage?
y Off-site drainage? currently drains to an on-site catch basin in SW corner
y Drainage patterns before and after finish grading? will be preserved
no ex outfalls, we plan to keep most of stormwater on-site, but overflow
na Locations of discharge outfalls/points?
to be piped
na Size of discharge outfalls/points?
Trillium Hill, Tigard, OR 28 of 38 by NEED
na Type of discharge outfalls/points?
n Areas used for storage of soils or wastes? areas will not impact water resources
Erosion and sediment control facilities/structures including
y
vegetative practices? as required by 1200C
Staging/Storage Considerations:
y Disturbance area? approx 2.8 acres
Total surface area of the site, broken down by phases of
y
development? 3.1 acres, site to be developed, houses by individual builders
Timetable for sequence of major events? develop this
salvaged asphalt and base rock from dwy, get fill recommendations
Type of material used for fill?
from geotech
Volume of cut?
Volume of fill?
n Recycling area? Recycling to be done in individual homes and placed on curb
y Composting area? where is this going?
Consider off-site/regional natural resources.
Water Resources:
y Receiving water body for site drainage? Tualatin River via pipes and unnamed drainageway
y Major/minor watershed location? Columbia/Tualatin
y EPA Level III ecoregion (EPA website) Willamette Valley
State stream use/standards designation/ classifcation?
Special high quality designations? (e.g., natural rivers, cold water
y fishery) endangered species or communities present?
Rare or steelhead trout
Are there required water quality standards?
303d/impaired stream listing classifcations? temperature
Existing or planned Total Maximum Daily Loads (TMDLs) for the
waterbody?
Aquatic biota, other sampling/monitoring?
Other special fshery issues?
Downstream flooding problems?
Vegetation:
Western Hemlock-Doug Fir forest immediately surrounding, number of
y Major habitat types?
riparian habitats nearby
Trillium Hill, Tigard, OR 29 of 38 by NEED
Regional connection to a special habitat system (migratory
y routes, wildlife corrdidors, etc., neighborhing publically owned
natural lands)? forested area to N & NW (significant) of property
n Wildfire risks?
Land Development Impacts:
Additional development anticipated for the area that could lead to
n further restrictions? (e.g., protection of downstream land and
water uses)
Additional development anticipated for the area that could lead to
n further opportunities (e.g., partnerships in multi-site or regional
water quality or quantity controls)?
Nearby construction sites that may have natural materials that
n
can be salvaged for use on your site?
Macroclimate:
y seasonal wind direction? winter: SE; summer: NW
J=5.36 F=5.31 M=4.75 A=4.28 M=4.00 J=4.08 J=3.89 A=3.83 S=4.08
y wind speed?
O=4.42 N=5.58 D=5.17
[inches] J=5.8 F=4.84 M=4.06 A=2.79 M=2.25 J=1.62 J=0.68 A=0.84
y annual and monthly precipitation patterns? S=1.64 O=2.92 N=6.07 D=6.41 TOTAL=39.95
y annual solar budget 440.24 kWh/sf/day
Air Quality:
y particulates?
y pollen?
y dissolved pollutants? Mercury
n smoke?
Consider off-site/regional infrastructure/built
environment.
Utilities:
public san sewer pipes in Lady Marion (needs ~50' extension,
y Wastewater system? MH#57105) & 109th (MH #59563 at SW corner) - get depths from
Clean Water Services
Water? public water in Lady Marion & 109th
Trillium Hill, Tigard, OR 30 of 38 by NEED
public storm sewer pipes in Lady Marion (MH#183146) & mid-109th
y Storm drainage system?
(MH# 179461 to MH#180374 at SW corner) - get depths from CWS
y Gas? from Lady Marion
y Electric? from Lady Marion
y Communication? from Lady Marion
n Fire hydrants? none indicated on survey
Livabaility:
Transportation options (mass transit, bicycle & pedestrian people walk through the site to access buses on 99W, multiple bike
y
facilities, roadways)? paths in area
Recreational opportunities, community resources, and other
y
amenities?
n Existing stressors (noise, odor, excessive light, etc.)?
y Walkable? Somewhat walkable according to walkscore.com
y Neighborhood architectural context? craftsman
Cultural:
Little Bull Mountainwhere Wilson Tigard established a homestead in
y Historical values, certifed or non-certifed?
1852 is 1/2 mile north of the project
y Known/potential archaeological values?
Suppliers of materials and services locations:
Native plant nurseries?
Local manufacters/suppliers of building materials?
Deconstruction services?
y Re-use facility for salvaged materials (Restore, Rebuilding, etc.)? Restore, Rebuilding of Portland
y Recycling facility for construction waste?
Air Quality:
n located on busy street?
n located on truck route?
n areas of idling?
n street canyons?
Trillium Hill, Tigard, OR 31 of 38 by NEED
Consider municipal, state, and federal guidelines/laws.
Master plans (Stormwater, Transportation, Parks,
Watersheds, etc.):
y Is development concept consistent with the master plan?
y Consistent with goals/policies of the plan?
Preservation of natural resources consistent with priority
n/a
areas/maps? we have no mapped priority areas, but do have important upland forest
Water Regulations (e.g., ordinances, engineering standards):
y Consistent with local existing regulations?
n Wetland regulations? no unmapped wetlands found on-site
must mitigate for all trees above 12", see City of Tigard municipal code
y Tree/woodlands ordinance?
18.790
na Riparian buffer ordinance?
n Open space requirements?
y Clustering and/or PUD options? PUD
n Overlay districts?
na Wellhead protection?
y erosion and sedimentation requirements? 1200C will be required by DEQ
Are LID solutions:
y required? swales have been required by CWS for years
n or incentivized? other LID not incentivized
y or enabled? new LIDA manual expands swales design
y or prohibited? in some situations, see LIDA manual
na Reduced building setbacks allowed?
n Curbs required?
City of Tigard given us OK to experiment with alternatives to curbs
y Swales allowed?
Street width, parking requirements, other impervious
y
requirements? skinny streets allowed in Tigard, we're doing a woonerf/shared space
n Grading requirements?
y Landscaping that allows native vegetation?
Stormwater requirements?
y Peak rate?
n Total runoff volume? not strictly required
Trillium Hill, Tigard, OR 32 of 38 by NEED
y Water quality?
y Maintenance? new LIDA manual has maintenance agreement
na State foodplain requirements?
Contaminated sites have followed state “due care” requirements
na
for soil and groundwater?
Consistent with state and federal wetland and/or inland lakes and
nma
streams regulations?
Other Regulations:
y State and federal threatened and endangered species? ESA
y Consistent with county/state road requirements? doing frontage improvements on 109th
Fire Department:
n Recommendations for wildfire areas?
y Vehicular circulation? see note below
y road widths? seedia cul-de-sac or 120' hammerhead for Lady Marion dead end, see
96' note below
y cul-de-sac/hammerhead requirements? "Fire & Life Safety Requirements for Fire Dept Access & Water
Supplies "
Consider the programmatic requirements.
Is development concept consistent with the master plan?
Consistent with owner's programmatic needs for sites and
y
buildings?
Stakeholder Process:
Does the site have current users? Can these uses be
y The site has one resident who will move when the development breaks
accomodated in the new design?
ground. Some folks in the neighborhood walk their dogs here.
y Who are the new users? homeowners
Integrated design team roles defined? do this
y Project principles and goals defined? see project program document created by developer
y Purpose for project and design intent defined? age in place courtyard community
n Future primary and seconday stakeholders identified?
y Sustainability goals defined (qualitative, quantitative)?
y Stakeholder engagement/charrette? completed in 2008
Trillium Hill, Tigard, OR 33 of 38 by NEED
Trillium Hill, Tigard, OR 34 of 38 by NEED
highlight to show things that still need to be completed
Trillium Hill, Tigard, OR 35 of 38 by NEED
Trillium Hill, Tigard, OR 36 of 38 by NEED
Trillium Hill, Tigard, OR 37 of 38 by NEED
biological criteria, set water qual stds
Trillium Hill, Tigard, OR 38 of 38 by NEED