 The northeast Seattle Tunnel length is 12 miles (18Km)
The Mill Creek tunnel length is 12 miles (18Km)
 Reason for tunneling is surface land availability, noise
and general environmental impact.
 Tunnels have crown elevation for natural draining
purposes.
 This tunneling will prevent surface from destruction and
allow speedy train service.
Des. By R.N.
HSR_Seattle to Everett
Legend
CHSR Stations
x
Commuter Stations
Flyovers
Cuts
Fills
Tunnels
Roadway over or under passes
Revised Roadways
Generally on ground
Freight Railroads (BNSF) (UPRR)
= Closed RR Crossings
Elv. = Rail Elevation
E = Ground surface Elevation
R = Radius
HSR_Legend
E 384'
E 386'
E 111'
HSR_SE_01
E 381'
E 360'
HSR_SE_02
E 203'
To Lake Forest Park Adit 6 miles (9 Km)
E 109'
CHSR Elv. 10'
TBM assembly
cavern Elv. 10'
Adit Shaft 1400' (450m)
E 40'
CHSR Elv. -50' Grade 0.75%
Muck via conveyor to
Barges for possible
artificial Island
building
HSR_SE_03
To SEA ST 6 miles (9 Km)
E 213'
E 180'
HSR_SE_04
E 300'
E 158'
E 386'
E 230'
E 85'
HSR_SE_05
E 398'
Mill Creek Tunnel Section
CHSR Elv. 40'
Possible Commuter
Subway Station
E 325'
E 257'
TBM assembly
cavern Elv. 40'
Muck via conveyor
to Barges
Adit Tunnel 0.54 miles
(0.86Km) long
NE Seattle Tunnel Section
Tunnel length 11.5 Miles
E 280'
HSR_SE_06
E 350'
E 560'
HSR_SE_07
E 140'
E 405'
E
CHSR enters Transmission
Line corridor (300' wide)
E 377'
HSR_SE_08
E 252'
E 397'
E 338'
CHSR Tunnel center point
Elv. 90' Drainage grade 0.15%
E 334'
HSR_SE_09
E 432'
Existing Transmission
Line corridor
E 445'
CHSR is departing
Transmission Line corridor
HSR_SE_10
Fill area
Material from
Tunnel
excavation
E 7'
Main CHSR Service
Area 80 acres
(33 Hectares)
Elv. 40'
Provide underpass
for Farming
E 8'
Causeway, fill from Tunnel excavation
Tunnel entrance elv. 40'
E 160'
Mill Creek Tunnel length 12 Miles (18Km)
HSR_SE_11
E 410'
CHSR Elv. 52'
BNSF Elv. 26'
Provide underpass
for Farming
E 7'
Causeway Elv. 46'
HSR_SE_12
Existing BNSF Elv. 69'
E 7'
CHSR Flyover Elv. 46'
Flyover length to
Everett Station 4.5 Miles
HSR_SE_13
CHSR Elv. 55'
I-5 Elv. 29'
Jct. Elv. 77'
Everett Station Area + new Road
Platform Elv. 44'
Also end of the Amtrak Empire
E 18'
HWY 2 Elv. 19'
HSR_SE_14
New access Road to
Everett Station Elv. 40'
CHSR Elv. 81'
BNSF with swing bridge
Pacific HWY Elv. 55'
Turnaround for Amtrak Empire Builder
HSR_SE_15