Setting things up
Seth Tuttle

Sound Transit 4 - Possible Alignments - Rail Only

Map is Public
created 28 weeks ago
updated 27 weeks ago
This is a branch of my Refined - Seattle Subway Vision Map 2025 (https://metrodreamin.com/view/WTdVWWt4NERKbmRWNEtpWVNhOFRBS3B5ZzRKMnwz) cut down to a possible ST4 layout. Overall the additions to this map would probably be larger than ST3 within Seattle, but a similar/smaller size overall. Important since some of the funds would be for ST3 back-fill no doubt. Notes -Sound Transit is set up a regional agency, and funds raised within a Sound Transit subarea (Snohomish, North King, East King, South King, and Pierce) generally have to be used in that subarea or to that subarea's benefit. To that end, there are multiple projects on this map which, while I don't think should be prioritized (mainly being the 7 Line), they need to be built in order to keep subarea equity. Meaning this is not exactly my ideal ST4 map, just what I think could be a likely possibility. -Shared projects does not mean equal funding. -Pierce and Snohomish might have leftover funds, there are some Stride corridors they could fill, but I will not be showing BRT on this map. -Link Light Rail is not like a typical light rail system, it acts and is characterized more like a light metro. Unfortunately Metro Dreamin does not have a category between light rail and metro/rapid transit. For now I have just selected metro/rapid transit. Projects -Snohomish ----Exclusive: 3 line from Everett Downtown to Everett College ----Shared: --------7 line from SLU to Edmonds and Lynnwood City Center as a branched service (shared with North King) ------------This is not a project that really should be prioritized, but Snohomish needs a money spend for their portion --------New N line stations at Richmond Beach, Golden Gardens, Salmon Bay, Fisherman's Terminal, and Belltown (shared with North King) ------------Probably not worth it or a good idea, but anything to make the N line not terrible -North King ----Exclusive: 5 Line from Sand Point to Salmon Bay ----Shared: --------6 line from Ballard to Renton Landing by way of Madison Valley (shared with East and South King) ------------Rainer Beach station is moved to Cloverdale to accommodate the 6 line --------7 line from SLU to Edmonds Downtown and Lynnwood City Center as a branched service (Shared with Snohomish) ------------This is not a project that really should be prioritized, but Snohomish needs a money spend for their portion --------8 line from Burien to Kirkland Downtown (shared with South and East King) --------Trenching the Rainer Valley segment starting after S Walden St and ending at either S Norfolk St or S Henderson St (shared with East King and Pierce) --------New N line stations at Richmond Beach, Golden Gardens, Salmon Bay, Fisherman's Terminal, and Belltown (shared with Snohomish) ------------Probably not worth it or a good idea, but anything to make the N line not terrible -East King ----Exclusive: 4 line from South Kirkland to Kirkland Downtown, West Issaquah to Highlands ----Shared: --------8 line from Burien to East Main (shared with South and North King) --------Trenching the Rainer Valley segment starting after S Walden St and ending at either S Norfolk St or S Henderson St (shared with North King and Pierce) -South King ----Exclusive: 8 Line from Midway (Kent/Des Moines) to Tukwila ----Shared: --------8 line from Burien (branched service) to Kirkland Downtown (shared with North and East King) --------Trenching the Rainer Valley segment starting after S Walden St and ending at either S Norfolk St or S Henderson St (shared with North/East King and Pierce) -Pierce ----Exclusive: 1 line from Tacoma Dome to Theater District, 1 line from Tacoma Dome to Tacoma Mall, T2 line service along 6th Ave, T3 line service along S Union Ave ----Shared: Trenching the Rainer Valley segment starting after S Walden St and ending at either S Norfolk St or S Henderson St (shared with North and East King)
Branch History
  1. MetroDreamin' by Seth Tuttle
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Comments

Score
0
Ridership
408M
Cost
$ 36.3B
Stations
184
Lines
16
Modes
3
Length
452 km
Where do these numbers come from?
Sound Transit 4 - Possible Alignments - Rail Only by
created at
updated at 2025-09-22T08:14:00.180Z
This is a branch of my Refined - Seattle Subway Vision Map 2025 (https://metrodreamin.com/view/WTdVWWt4NERKbmRWNEtpWVNhOFRBS3B5ZzRKMnwz) cut down to a possible ST4 layout. Overall the additions to this map would probably be larger than ST3 within Seattle, but a similar/smaller size overall. Important since some of the funds would be for ST3 back-fill no doubt. Notes -Sound Transit is set up a regional agency, and funds raised within a Sound Transit subarea (Snohomish, North King, East King, South King, and Pierce) generally have to be used in that subarea or to that subarea's benefit. To that end, there are multiple projects on this map which, while I don't think should be prioritized (mainly being the 7 Line), they need to be built in order to keep subarea equity. Meaning this is not exactly my ideal ST4 map, just what I think could be a likely possibility. -Shared projects does not mean equal funding. -Pierce and Snohomish might have leftover funds, there are some Stride corridors they could fill, but I will not be showing BRT on this map. -Link Light Rail is not like a typical light rail system, it acts and is characterized more like a light metro. Unfortunately Metro Dreamin does not have a category between light rail and metro/rapid transit. For now I have just selected metro/rapid transit. Projects -Snohomish ----Exclusive: 3 line from Everett Downtown to Everett College ----Shared: --------7 line from SLU to Edmonds and Lynnwood City Center as a branched service (shared with North King) ------------This is not a project that really should be prioritized, but Snohomish needs a money spend for their portion --------New N line stations at Richmond Beach, Golden Gardens, Salmon Bay, Fisherman's Terminal, and Belltown (shared with North King) ------------Probably not worth it or a good idea, but anything to make the N line not terrible -North King ----Exclusive: 5 Line from Sand Point to Salmon Bay ----Shared: --------6 line from Ballard to Renton Landing by way of Madison Valley (shared with East and South King) ------------Rainer Beach station is moved to Cloverdale to accommodate the 6 line --------7 line from SLU to Edmonds Downtown and Lynnwood City Center as a branched service (Shared with Snohomish) ------------This is not a project that really should be prioritized, but Snohomish needs a money spend for their portion --------8 line from Burien to Kirkland Downtown (shared with South and East King) --------Trenching the Rainer Valley segment starting after S Walden St and ending at either S Norfolk St or S Henderson St (shared with East King and Pierce) --------New N line stations at Richmond Beach, Golden Gardens, Salmon Bay, Fisherman's Terminal, and Belltown (shared with Snohomish) ------------Probably not worth it or a good idea, but anything to make the N line not terrible -East King ----Exclusive: 4 line from South Kirkland to Kirkland Downtown, West Issaquah to Highlands ----Shared: --------8 line from Burien to East Main (shared with South and North King) --------Trenching the Rainer Valley segment starting after S Walden St and ending at either S Norfolk St or S Henderson St (shared with North King and Pierce) -South King ----Exclusive: 8 Line from Midway (Kent/Des Moines) to Tukwila ----Shared: --------8 line from Burien (branched service) to Kirkland Downtown (shared with North and East King) --------Trenching the Rainer Valley segment starting after S Walden St and ending at either S Norfolk St or S Henderson St (shared with North/East King and Pierce) -Pierce ----Exclusive: 1 line from Tacoma Dome to Theater District, 1 line from Tacoma Dome to Tacoma Mall, T2 line service along 6th Ave, T3 line service along S Union Ave ----Shared: Trenching the Rainer Valley segment starting after S Walden St and ending at either S Norfolk St or S Henderson St (shared with North and East King)
Map type: local | Total track length: 281 miles | Center coordinate: 47.5277, -122.329 | * T1 Line: (Tram, 18 stations) Tacoma Dome, S 25th, Union Station, Convention Center, Theater District, Old City Hall, S 4th, Stadium District, Tacoma General East, 6th Avenue, Hilltop District, St Joseph, Ainsworth, Sprague, Union South, Stevens South, Pearl, Tacoma Community College * S Line: (Commuter/suburban rail, 11 stations) DuPont, Tillicum, Lakewood, South Tacoma, Tacoma Dome, Puyallup, Sumner, Auburn, Kent Downtown, Tukwila, King Street * N Line: (Commuter/suburban rail, 9 stations) Everett, Mukilteo, Edmonds Downtown, Richmond beach, Golden Gardens, Salmon Bay, Fishermen's Terminal, Belltown, King Street * 6 Line: (Metro/rapid transit, 22 stations) Landing, Renton Downtown, Skyway, Kubota Garden, Ranier Beach, Othello, Graham, Columbia City, Mount Baker, Judkins Park, 23rd/Jackson, Cherry, Central District, Madison Valley, East Capitol Hill, West Capitol Hill, Fairview, South Lake Union, Seattle Center, Smith Cove, Interbay, Central Ballard * 7A Line: (Metro/rapid transit, 22 stations) Alaska Junction, Avalon, Delridge, SODO, International District/Chinatown at 4th Avenue, Midtown, Westlake, Denny, South Lake Union, Ward, Dexter, Fremont, Upper Fremont, Green lake, Licton Springs, 105th/Aurora, Bitter Lake, Westminster, West Shoreline, Echo Lake, South Edmonds, Edmonds Downtown * T2 Line: (Tram, 17 stations) Tacoma Community College, Mildred, Scott-Pierson, Orchard, Stevens North, Union North, Alder, S State, Tacoma General West, Stadium District, S 4th, Old City Hall, Theater District, Convention Center, Union Station, S 25th, Tacoma Dome * T3 Line: (Tram, 9 stations) Proctor, N 21st, Unoversoty of Puget Sound, Union North, S 12th, Union South, Center, Pine, S 38th * 4 Line: (Metro/rapid transit, 14 stations) Kirkland Downtown, Feriton, Houghton, South Kirkland, Wilburton, Bellevue Downtown, East Main, Richards Road, Eastgate, Lakemont, West Issaquah, Gilman, Historic Issaquah, Highlands * 2 Line: (Metro/rapid transit, 30 stations) Downtown Redmond, Marymoor Village, Redmond Technology, Overlake Village, BelRed, Spring District, Wilburton, Bellevue Downtown, East Main, South Bellevue, Mercer Island, Judkins Park, International District/Chinatown at 5th Avenue, Pioneer Square, University Street, Westlake, Capitol Hill, University of Washington, U District, Roosevelt, Northgate, Pinehurst, Shoreline South/148th, Shoreline North/185th, Mountlake Terrace, 220th St SW, Lynnwood City Center, Alderwood Mall, Ash Way, Mariner * 8A Line: (Metro/rapid transit, 18 stations) Kirkland Downtown, Feriton, Houghton, South Kirkland, Wilburton, Bellevue Downtown, East Main, Factoria, Newport, May Creek, Renton Downtown, South Renton, Tukwila, Orillia, Industrial Valley, Kent Downtown, Meeker, Midway * 1A Line: (Metro/rapid transit, 30 stations) Central Ballard, Interbay, Smith Cove, Seattle Center, South Lake Union, Denny, Westlake, Midtown, International District/Chinatown at 4th Avenue, SODO, Beacon Hill, Mount Baker, Columbia City, Graham, Othello, Ranier Beach, East Marginal Way, Tukwila/International Boulevard, SeaTac/Airport, Angle Lake, Midway, Star Lake, Federal Way Downtown, South Federal Way, Fife, Portland Avenue, Tacoma Dome, Union Station, Convention Center, Theater District * 8B Line: (Metro/rapid transit, 16 stations) Kirkland Downtown, Feriton, Houghton, South Kirkland, Wilburton, Bellevue Downtown, East Main, Factoria, Newport, May Creek, Renton Downtown, South Renton, Tukwila, Southcenter, Tukwila/International Boulevard, Burien * 3 Line: (Metro/rapid transit, 29 stations) Everett College, 19th St, Everett Downtown, SR 526/Evergreen Way, Southwest Everett Industrial Center, Airport Road, Mariner, Ash Way, Alderwood Mall, Lynnwood City Center, 220th St SW, Mountlake Terrace, Shoreline North/185th, Shoreline South/148th, Pinehurst, Northgate, Roosevelt, U District, University of Washington, Capitol Hill, Westlake, University Street, Pioneer Square, International District/Chinatown at 5th Avenue, Stadium, SODO, Delridge, Avalon, Alaska Junction * 5 Line: (Metro/rapid transit, 11 stations) Salmon Bay, Ballard West, Central Ballard, West Woodland, Upper Fremont, Densmore, Thackery, U District, U Village, Children's Hostpital, Sand Point * 1B Line: (Metro/rapid transit, 29 stations) Central Ballard, Interbay, Smith Cove, Seattle Center, South Lake Union, Denny, Westlake, Midtown, International District/Chinatown at 4th Avenue, SODO, Beacon Hill, Mount Baker, Columbia City, Graham, Othello, Ranier Beach, East Marginal Way, Tukwila/International Boulevard, SeaTac/Airport, Angle Lake, Midway, Star Lake, Federal Way Downtown, South Federal Way, Fife, Portland Avenue, Tacoma Dome, S 38th, Tacoma Mall * 7B: (Metro/rapid transit, 23 stations) Alaska Junction, Avalon, Delridge, SODO, International District/Chinatown at 4th Avenue, Midtown, Westlake, Denny, South Lake Union, Ward, Dexter, Fremont, Upper Fremont, Green lake, Licton Springs, 105th/Aurora, Bitter Lake, Westminster, West Shoreline, Echo Lake, Esperance, Halls Lake, Lynnwood City Center
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