|
Capitol Lake
|
Liquefaction
Lateral spreading
Landslide |
· Need improved
mapping of failures
· Inclinometer
· S&W
has video of sand boil
· Shifted
abutment on RR bridge |
|
Port of Seattle
|
Terminal 5
Terminal 18
Terminal 25
West Marginal Way |
· North
end
o
Sand boils on APL property
o
MSE wall movement
o
Ground cracks 1-2 wide, 300 long, up to
1 vertical offset
o
2 settlement near buildings
· South
end
o
2-3 settlement near bridge piers
o
Evidence of pier movement relative to soil
· Similar
to Terminal 5
· Sinkhole
· To the
south PM Ag soil improvement performance
· Cracking,
sand boils
· Not much
to see some cracks and sand boils
· Sand boils
off E. Marginal Way, south of Spokane St.
|
|
Seattle waterfront
|
Myrtle Edwards Park
|
· Hydraulic
fill improved by ??? no damage
|
|
Port of Olympia
|
|
· Sand boils
· Crack
(small) at boundary between fill and pile-supported wharf structure |
|
Port of Tacoma
|
Puyallup River levees
ASARCO
|
· No damage
observed
· Possible
damage claimed by ???
· Could
be worth follow-up visit
Embankment on soils improved by dynamic compaction Mark
Koelling to get info
|
|
Nisqually Delta
|
Central area
Perimeter dike
Fish hatchery
|
· Remarkably
little evidence of liquefaction or movement
· Some sand
boils, but not many
· Sand boils
adjacent and parallel to draw along central road
· Minor
cracking in some locations up to ~1
· No vertical
offsets
· Minor
cracking adjacent to Nisqually River
· Minor
cracking
|
|
Puyallup River Valley
|
|
· No damage
observed
· Worth
closer look based on historical liquefaction |
|
Kent-Auburn Valley
|
|
· Same as
Puyallup River valley
· Some minor
cracking in Renton (S&W) |
|
Lower Duwamish River Valley
|
Boeing Field
|
· East side
o Extensive liquefaction
o 300 long zones
of ejecta
o Up to 9 settlement
· West side
o Less liquefaction,
few scattered sand boils
o Cracking, joint
separations
o 4 wide, 6deep
sinkhole on north side of runway
· Need to
map spatial distribution of liquefaction features w/r/t old
river meanders
|
|
16th Ave S & E. Marginal Way
|
|
· Half a
dozen 2 cm cracks
|
|
Seattle Chocolates at First Ave S and Holgate
|
Sand boils
|
·
|
|
Coleman Dock
|
Settlement
|
· 2 of
settlement over few hundred feet
· adjacent
to pile supported section |
|
Pioneer Square to Jackson
|
Cracking
Settlement |
· 12 settlement
· slabs
pulling away from pile cap |
|
West Seattle, Walnut Street
|
Landslides
|
· On private
property
· East facing
slope
· Cracks
at top of slope
· 4-5 properties
affected
· 11 vertical,
8 lateral displacement |
|
Martin Way, Olympia
|
Partial Embankment Failure
|
· 350 length
· On north
side
· Vertical
displacement 10 feet
· Snapped
communication line poles
· Next to
Baileys |
|
Tumwater @ Crosby and Mottman
|
Aztec Wall Failure
|
· 15 blocks
high (9 to 12 feet)
· 100 long
· Slope
factor 3:1; 14 to 18 sloe height
· Shannon
and Wilson to get drawings |
|
I5 South of Olympia
|
MSE Supported Abutments
|
·
|
|
Sunset Lake, Tumwater
|
Later Spreading
Sand boils
|
· 4 vertical
· 5 horizontal
· Mobile
homes shifted
· Gas pipe
break
· Sand boils
away from lake |
|
North Creek, Woodinville
|
Not much
|
|
|
Marriott Residence Inn, Bothell/Woodinville
|
Settlement
|
· 6 vertical
· 4 lateral |
|
East Sammamish Parkway and Thompson Hill Road, Sammamish
|
Slide
|
· Cleaned
up
|
|
Highway 101 near Mud Bay
|
Slide
|
· Embankment
in ravine
· Cut vertical
· Artesian
GW conditions
· North
part of embankment lost
· Flow slide
with rotation
· > 100
meters of movement |
|
Cedar River
|
Slide
|
· John Bethel
· Steve
Botheim |
|
|
|
|
|
First Ave South and Holgate warehouse
|
Sinkhole Inside Building
Pile Foundation Settlement
|
· Several
tens of feet across
· Several
feet deep |
|
Puyallup River Valley/Puyallup
|
No liquefaction whatsoever
|
· From Puyallup
to Sumner
· Minute
cracks at 65 liquefaction location
· Liquefaction
at one site in Sumner
· Chimney
damage |
|
Burien
|
Landslide
|
· Eight
red tagged residences
· Bluff
geomorph setting
· Already
covered
· 1 ft vertical
cracking
· 4 to 5
horizontal
· Geoengineers
has an inclinometer in area
· Preexisting
slide |
|
Hwy 302 Tacoma Narrows Bridge
|
Slide
|
· Front
page of news weekly
· Downward
displacement of 1 meter, horizontal displ of 15 cm.
· Many asphalt
overlays (preexisting problem) |
|
Marymoore Park
|
No liquefaction
|
·
|
|
Sammamish River Valley
|
No liquefaction
Cracking near Redhook |
·
|
|
Prot of Tacoma
|
Settlement
|
· of one
inch in 10 x 10 area
· Port Engineers
say only damage |
|
Pier 37
|
Settlement
|
· 7 cm over
large area
· settlement
of timber supported pier |
|
Dahl Playfield 78th and 25th Ave NE
|
Sandboils
Cracking |
· ½ cm cracks
|
|
Greenlake
|
South soccer field sand boils and fractures
|
|
|
West Greenlake Way
|
Pavement
distress/settlement
Sand boils |
· 10 cm
settlement
|
|
Greenlake Path
|
Lateral Spread
|
· near aquetheater
· 80 m extent
· 6 7cm
horizontal
· 5 cm vertical |
|
Lower Most Snoqualmie Valley
|
No damage
|
|
|
E. of Gold Bar, Big Eddy Bridge
|
Settlement
|
· 2 inches
|
|
Paradise Lake
|
Driller had problems
|
|
|
Lake Union
|
Cracking along Westlake?
|
|
|
Port of Seattle, Terminal 30
|
Cracking
Settlement
Sand boils |
· 250 long
· 4 sets
of cracks
· up to
1 of lateral displacement per crack
· Vertical
irregular
· Monitoring
wells present
· Abundant
sand boils |
|
Pioneer Square
|
Settlement
|
· 4 6
inches of settlement away from buildings (10 away from buildings)
|
|
AWV
|
Sand boils
Settlement
Partially collapsed Building |
· at switching
substation
· one track
closed
· ~2 inches
of settlement
· Ejecta
covered tracks
· Black
sand, some silica sand in ejecta
· Continued
liquefaction along 1st Ave South down to Hanford
· 2 partially
collapsed buildings caused by un-reinforced masonry
· liquefaction
observed on all sides of Sodo Center
· Sidewalk
settlement of 1-1/2 inches next of pier supported Safeco field |
|
Seattle Underground
|
|
· No definitive
new damage
|
|
Terminal 5
|
Settlement
|
· Couple
of inches of separation of crane rails
· Separate
support for two rails
· Bulkhead
probably moved |
|
14th/16th Ave Bridge
|
Settlement
|
· At abutment
· Damage
not related to soil
· South
abutment |
|
Chambers Creek Road/University Place
|
Liquefaction
Lateral Spreading |
· At bridge
approach
· 4 5
inches of vertical |
|
SE 1st and 136th Ave NE/Glendale Gold
Course
|
|
· 300 cy
of material
· Mud slide
· 500 feet
lateral displacement |
|
Duwamish Corridor
|
Many (~100) liquefaction sites
|
|
|
Upper Part of Green River
|
|
· North
of Green River nothing
· Flaming
Geyser Park nothing
· Existing
slide covered in plastic
· Small
features (east of Auburn East Green River Park) several
small sand boils, 1cm lateral spreading per crack
· North
of Green River Park significant lateral spreading long (10s
of meters), 10 cm wide lateral spreading |
|
Lake Sammamish State Park
|
Sand boils
|
· At mouth
of creek (coal debris)
|
|
Lake Union, 2720 Westlake Ave N
|
Settlement
|
· Structure
settlement?
· Ground
crack along railroad right of way |
|
Port of Olympia, Corky and B St.
|
No liquefaction where it was expected
|
·
|
|
Salmon Beach
|
Large Slide
|
· Impacted
structures
|
|
Hwy 202 near fish hatchery
|
Slide
|
· 1000 cy
into creek
· Shoulder
of 202 settled 1 feet |
|
West Point Treatment Plant
|
|
|
|
Landfills
|
|
|
|
Perkins Lane
|
|
|
|
West of Pigeon Point
|
|
|
|
East of Boeing Field
|
|
|
|
Tukwila
|
|
|
|
Issaquah (South of Park)
|
|
|
|
Lake Union
|
|
|
|
Sammamish Slough (Wville and Bothell)
|
|
|
|
SW of Marginal Way and 99/509
|
|
|
|
Tacoma Promenade
|
|
|
|
White River
|
|
|
GEOTECHNICAL
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