Camas Ian Vierck
1
Historical Analysis Alluvial Deposits
Terrace Deposits
1947 1947
1777
Boat landing
ette To
day
1777
Willam m
1947 1947 Portland Gas and Coke Co. and Allen Fruit Co. Inc
Upland
1777 The ecosystems and geography of the past show that the site would look familiar preeuropeans Shared Railroad 1947 Analyzing the scars of the floodplain reveals that the site has been fairly consistent for several hundreds of years.
Historical Floodplain of the Willamette
Shared Flows of Movement
Timber Industry
Shared geology
1777
1987
2
3
1777: Pre-European
1948: The Industrial Era
1987: The Aftermath of Indutry
2021: Post Cascadian Subduction Zone Earthquake
4
3 2
1
3
2
1
5
Coarse woody debris
Riparian habitat
Ecotones
Upland
Upland Riparian Fores/ Savanah
Foraging
1777
6
3 2
1
Path
Ampitheater
Path
Covered ampitheater being constructed over capped waste
Tracks
Present
7
Sediment, debris, and other pollutants
Toxic Fill Resurfaces d Lan w Flo
Water erupts to the surface
Capped Fill Sink s
Toxic Fill Resurfaces Sand Boils
Capped Fill Sink s
Liquification on the site causes toxic soil to surface along with sand boils and water. Capped landfill will sink due to its density as land flows into the river. Sediment, debris, and pollutants turn the river brown, rerouting and changing the familiar course and banks of the river. Post Cascadian Subductionzone Eathquake 8
Land flows into river
Water and sand boils surges to the surface
Soil horizons mix
Capped fill sinks, uncapped fill surfaces
Buildings, trees, and Post other debris sinks and Earthquake moves throughout soil
9
Clay Studies
1.
7.
No change
4. Filter berm on terrace
2.
5.
8.
Filter berm on terrace and on landslide deposit
Sediment ponds along the terrace
Two capture basins between the terrace and train tracks/ Front St.
3.
6.
9.
Capture basin and filter berm on terrace
Filter berm on terrace and near train tracks/ Front St.
Filter berm on terrace and capture basins where historics roads once were
Filter berm on terrace and capture basin in between berm and train tracks/ Front St
10
Concept
Present Contours
Size of the remaining depressions with a 4:1 slope
Removal of the Soil Depth NA 0-5ft 6-10ft 11-20ft
Finley Buttes Regional Landfill
Removal of the toxic soil on site described by the DEQ as well as the top 3ft of topsoil will be done to ensure safety long into the future
Shape of site post earthquake
11
Camas
Early written reports describe large open meadows of Camas prior to colonization
When camas was in bloom in wet meadows, the flowers grow so thickly that they look like a blue lake
Each flower has six showy petallike tepals, blue to purple with yellow anthers
James Clyman, May 1845
Edith Van Allen Murphey, 1959
Riverfront park
ette am will
Bulb, once boiled or cooked in oven, was a staple of First Nations people throughout the west coast
6000-5000 B.P
5000-4000 B.P
4000-3000 B.P Camas ovens per millennium at Mill Creek Site
Jul
bot
Mill Creek archealogical sites
Camas prefer soils that are high in clay and silt
Jan
Stout stem sports flower from April to May
any .org
Camas have a long history of growing in Salem
Dec
Modern-1000 B.P
1000-2000 B.P
2000-3000 B.P
Camassia leichtlinii Large Camas
Wet winters and dry summers are ideal for growth 12
Grading Plan Plan
LP LP
Slope 5-10% LP
Slope <5%
LP
LP
LP LP
LP
Slope for meadows not related to toxic waste LP
LP
2ft
4:1
LP
Slope
LP LP
LP LP LP LP
LP
LP
LP
LP LP
LP
LP
Camas meadows dominate the site while willamette riparian forest planting give a unique sence of place.
13
Riparian planting
Boardwalk
Seasonal Goats
Trees reminiscent of willamette riparian forests
Camas meadows
2030
14
15
Sources • • • • • • • • • • • • • • • • • •
https://www.willametteheritage.org/wp-content/uploads/2015/07/What-Price-Eden-PDF.pdf https://pubs.usgs.gov/of/2013/1246/pdf/ofr2013-1246.pdf https://gis.dogami.oregon.gov/maps/geologicmap/ https://publishing.cdlib.org/ucpressebooks/view?docId=ft5z09p09z&chunk.id=d0e107&toc.depth=1&toc.id=d0e107&brand=ucpress http://www.fsl.orst.edu/pnwerc/wrb/access.html https://ndnhistoryresearch.com/2018/05/01/chemeketa-creek-becomes-mill-creek/ https://www.willametteheritage.org/assets/FScurriculum.pdf https://core.ac.uk/download/pdf/36682083.pdf https://creation-designs.com/gracemillennium/sojourn/premiere/html/ed_murphey.html https://plants.usda.gov/plantguide/pdf/cs_caquq.pdf https://www.nrcs.usda.gov/Internet/FSE_PLANTMATERIALS/publications/orpmcpg13213.pdf https://willamettebotany.org/asparagaceae/ https://www.google.com/url?sa=i&url=https%3A%2F%2Fplants.ces.ncsu.edu%2Fplants%2Fcamassia%2F&psig=AOvVaw0VMZ77Yv7hLXl-5R3pQofL&ust=16137 92698298000&source=images&cd=vfe&ved=0CAIQjRxqFwoTCIC9hsiE9e4CFQAAAAAdAAAAABAE https://www.plant-world-seeds.com/images/item_images/000/007/856/large_square/CAMASSIA_LEICHTLINII_SUBSP_SUKSDORFII.jpg?1559221443 https://cdn.sierrasun.com/wp-content/uploads/sites/4/2016/08/SS_SS200710070904010AR.jpg https://photos.salemhistory.net/ https://www.google.com/earth/ https://data.cityofsalem.net/