Rail Extension Tracker
78 projects tracked. Filter by country, region, agency, or status.
| Project | Agency | Region | Mode | Status | Alignment | Last Updated |
|---|---|---|---|---|---|---|
| AIFA–Pachuca Passenger Train (Tren México–Pachuca) | ATTRAPI | HID | commuter rail | Under Construction | New ~57 km (35.4 mi) electrified double-track line branching off the Buenavista–AIFA Tren Felipe Ángeles at Xaltocan and running northeast to Pachuca, with four stations and four smaller stops. Army engineers are building it; ATTRAPI reported 45% progress in September 2026, and service is expected in 2027. | Nov 13, 2026 |
| Alto High-Speed Rail (Toronto–Québec City) | Alto | QC | high speed | Planning | Planned ~1,000 km dedicated high-speed rail line at up to 300 km/h linking Toronto, Peterborough, Ottawa, Laval, Montréal, Trois-Rivières, and Québec City. The route is still a study corridor; Ottawa–Montréal (~200 km) is the first segment, with construction targeted to begin in 2029. | Nov 13, 2026 |
| Austin Light Rail Phase 1 | ATP | TX | light rail | Env. Review | 9.8-mile, 15-station light rail line on city streets, running from 38th Street down Guadalupe Street through UT and downtown, across a new Lady Bird Lake bridge, then splitting south to Oltorf Street and east along East Riverside Drive to Yellow Jacket Lane. The FTA issued its Record of Decision in January 2026; construction is slated to start in 2027, with service targeted for 2033. | Nov 13, 2026 |
| BART Silicon Valley Phase II Extension | VTA | CA | heavy rail | Under Construction | Six-mile, four-station BART extension from Berryessa/North San José through downtown San José to Santa Clara, about 5 miles of it in a single large-bore tunnel. Early works at the west portal are under way, but tunneling has slipped to early 2028 and VTA expects its next cost estimate to be significantly above $12.7B. | Nov 13, 2026 |
| Broadway Subway Project (Millennium Line Extension) | BC MoTT | BC | heavy rail | Under Construction | 5.7 km SkyTrain Millennium Line extension west from VCC–Clark to Arbutus Street, mostly in twin bored tunnels under Broadway, with six new underground stations. Tunnelling and trackwork are complete, train testing began in May 2026, and opening is planned for fall 2027. | Nov 13, 2026 |
| Surrey Langley SkyTrain (Dave Barrett Extension) | BC MoTT | BC | heavy rail | Under Construction | 16 km elevated extension of the SkyTrain Expo Line from King George Station along Fraser Highway to Langley City Centre, with eight new stations. Major construction began in November 2024, the guideway was about 65% complete by September 2026, and service is expected in late 2029. | Nov 13, 2026 |
| Millennium Line UBC Extension (UBCx) | BC MoTT | BC | heavy rail | Planning | Proposed ~7 km SkyTrain extension continuing the Millennium Line west from the Broadway Subway's Arbutus terminus to UBC, with about four stations (Macdonald, Alma, Jericho Lands, UBC). The Province has led planning since 2022 and has a business case under way, but there is no cost estimate, funding, or construction date. The BC Conservatives, who won the October 2026 election, have not committed to the project. | Nov 13, 2026 |
| Brightline Orlando–Tampa Extension | Brightline | FL | intercity | Planning | Proposed ~85–90-mile extension of Brightline's Miami–Orlando intercity service from Orlando International Airport to Tampa. It would share a new Sunshine Corridor track with SunRail along SR 528 to the Convention Center, then run in the median FDOT has preserved along I-4. Stations beyond the Convention Center are undecided. With no cost estimate or schedule, the project's prospects became more uncertain after Brightline's parent companies filed for Chapter 11 in September 2026. | Nov 13, 2026 |
| Brightline West | Brightline West | CA | high speed | Under Construction | Privately developed 218-mile, all-electric high-speed line between Las Vegas and Rancho Cucamonga, running mostly in the I-15 median, with four stations. Construction formally began in April 2024, but work has largely stalled because financing is incomplete: the company is waiting on a $6 billion federal loan, and bondholders have extended its deadlines into January 2027. | Nov 13, 2026 |
| California High-Speed Rail: Merced–Bakersfield | CHSRA | CA | high speed | Under Construction | 171-mile first segment of California High-Speed Rail through the Central Valley, with stations at Merced, Fresno, Kings/Tulare and Bakersfield, built around a 119-mile civil section from Madera County to north of Bakersfield. Under construction with about 81 miles of guideway finished. The track contract was awarded in June 2026, and the 2026 Business Plan targets passenger service in 2033 on a pared-back 162-mile, mostly single-track version. | Nov 13, 2026 |
| Green Line LRT (Phase 1) | City of Calgary | AB | light rail | Under Construction | 17 km first phase of Calgary's Green Line LRT, from Shepard in the southeast to a new at-grade station on 10 Avenue near 2 Street SW, with 11 stations. The 16 km SE Segment has been under construction since June 2025; council approved a surface route for the downtown section in September 2026, and opening is targeted for 2031. | Nov 13, 2026 |
| Cascadia High-Speed Rail | WSDOT | WA | high speed | Planning | Proposed dedicated high-speed line of roughly 315 miles linking Vancouver, BC, Seattle, and Portland, OR, at speeds above 160 mph. No route or stations have been chosen; WSDOT is preparing a federally funded service development plan due in 2028, with Oregon and British Columbia as partners. | Nov 13, 2026 |
| Mexico City Metro Line 12 Extension (Mixcoac–Observatorio) | ATTRAPI | CMX | heavy rail | Under Construction | 4.6 km deep-tunnel extension of Metro Line 12 from Mixcoac to Observatorio, with two intermediate stations and a terminal linking to Line 1 and the Mexico City–Toluca interurban train. Under way since the mid-2010s, the tunnel was finished in April 2026; stations and systems remain, with works due to finish in 2028 and service in 2029. | Nov 13, 2026 |
| Réseau express métropolitain (REM) | CDPQ Infra | QC | heavy rail | Under Construction | 67 km automated light metro with 26 stations on four branches. 64 km and 23 stations are in service: the South Shore branch (2023), the Deux-Montagnes branch (2025), and the Anse-à-l'Orme branch (May 2026). The last piece, a two-station branch to Montréal-Trudeau Airport, is in high-speed testing with service planned for the end of 2027. Two infill stations near the Lachine Canal are in planning. | Nov 13, 2026 |
| Red Line Extension | CTA | IL | heavy rail | Under Construction | 5.5-mile extension of the CTA Red Line south from 95th/Dan Ryan to 130th Street, mostly elevated alongside the Union Pacific Railroad, with four new stations and a new rail yard. Construction formally began in April 2026 and service is targeted for 2030, while a lawsuit over a 2025 federal funding freeze is in settlement talks. | Nov 13, 2026 |
| Valley Line West LRT | City of Edmonton | AB | light rail | Under Construction | 14 km low-floor LRT extension of the Valley Line from downtown Edmonton (102 Street) west to Lewis Farms, with 14 street-level stops and two elevated stations. Construction was 64.4% complete at the end of March 2026 and is expected to finish in 2028; an opening date will be set after testing. | Nov 13, 2026 |
| Foothill Gold Line: Pomona to Montclair (A Line Extension) | Foothill Gold Line Construction Authority | CA | light rail | Funded | Final 3.3-mile, two-station segment of the Metro A Line's Foothill extension, from Pomona to Claremont and Montclair along the Metrolink San Bernardino Line corridor. The 2.3-mile Pomona–Claremont section is funded with $798M in state money and in final design, with major construction expected from late 2027 and completion around 2031. The Claremont–Montclair section is on hold after San Bernardino County withdrew its support in 2025. | Nov 13, 2026 |
| Hudson Tunnel Project (Gateway Program) | GDC | NJ | intercity | Under Construction | New two-track rail tunnel under the Palisades and the Hudson River, about 4.5 route miles (nine miles of new track) from the Northeast Corridor in Secaucus, NJ to New York Penn Station, followed by rehabilitation of the 1910 North River Tunnel. Under construction; tunnel boring began in October 2026 after a 2025–26 federal funding freeze was overturned in court. | Nov 13, 2026 |
| Skyline Segment 3 (City Center Guideway and Stations) | HART | HI | heavy rail | Under Construction | Final ~3-mile elevated segment of Honolulu's Skyline automated metro, from the Middle Street–Kalihi Transit Center through Iwilei, Chinatown, and Downtown to a Civic Center terminus in Kakaʻako, with six new stations. Under construction since August 2025; HART targets March 2031, but the FTA's oversight consultant puts a spring 2032 opening as more likely. | Nov 13, 2026 |
| East San Fernando Valley Light Rail Transit Project | LA Metro | CA | light rail | Under Construction | 6.7-mile, 11-station street-running light rail line in the middle of Van Nuys Boulevard, from the Metro G Line in Van Nuys to San Fernando Road in Pacoima, with transfers to Metrolink at Van Nuys and at a new Pacoima Metrolink station. Major construction began in October 2026 on a $4.0 billion budget, and the line is due to open in 2031–2032. The originally planned 2.5-mile northern segment to Sylmar/San Fernando was dropped in favor of the Pacoima station. | Nov 13, 2026 |
| K Line Extension to Torrance | LA Metro | CA | light rail | Env. Review | 4.7-mile, two-station light rail extension of the K Line (formerly the C Line Extension to Torrance) from Redondo Beach (Marine) Station to the Torrance Transit Center. In January 2026 the Metro Board certified the Final EIR and chose an elevated route along I-405 and Hawthorne Boulevard; the project is now in preliminary engineering with $1.13B of funding identified, and opening is targeted for late 2036. | Nov 13, 2026 |
| D Line Subway Extension Section 3 | LA Metro | CA | heavy rail | Under Construction | 2.56-mile subway extension of the Metro D Line (formerly the Purple Line) from Century City/Constellation to Westwood, with two new underground stations at Westwood/UCLA and Westwood/VA Hospital. Tunneling is finished, the project was 85% complete in June 2026, and opening is planned for fall 2027. | Nov 13, 2026 |
| Southeast Gateway Line | LA Metro | CA | light rail | Under Construction | 14.5-mile light rail line with nine stations from the A Line's Slauson station to Pioneer Boulevard in Artesia, mostly at grade on existing rail corridors including the former Pacific Electric West Santa Ana Branch. It was environmentally cleared in 2024, and advance utility work and early works are under way. Metro is aiming for a federal funding agreement by 2027 and completion by 2035. The roughly 4.8-mile northern segment to Union Station has no settled alignment and no funding. | Nov 13, 2026 |
| West-East Rail (Compass Rail) | MassDOT | MA | intercity | Funded | Intercity passenger rail on the Boston & Albany corridor, about 150 miles from Boston South Station through Worcester and Springfield to Pittsfield, part of MassDOT's Compass Rail program. Phase 1, the Inland Route, would add two daily Boston–Springfield–New Haven round trips by 2030, with construction starting in 2027. Service west to Pittsfield and Albany is still in federal corridor planning. | Nov 13, 2026 |
| Blue Line Extension to Lynn | MBTA | MA | heavy rail | Proposed | Long-proposed ~4.5-mile extension of the Blue Line from its terminus at Wonderland in Revere to downtown Lynn, most often studied along the Newburyport/Rockport commuter rail right-of-way. The project is dormant, with no funding and no active MBTA study. State and MBTA attention in Lynn has shifted to Lynnway bus lanes and future commuter rail electrification. | Nov 13, 2026 |
| Green Line Extension to Mystic Valley Parkway (Route 16) | MBTA | MA | light rail | On Hold | Proposed ~0.9-mile extension of the Green Line's Medford Branch (E branch) from Medford/Tufts along the Lowell Line commuter rail corridor to one new terminal station at Mystic Valley Parkway (Route 16). Once the second phase of the Green Line Extension, it lost its $190M in regional funding to the main project in 2016. A 2017 redesign entered state environmental review, but the project has had no funding or construction schedule since. | Nov 13, 2026 |
| Red-Blue Connector | MBTA | MA | heavy rail | Env. Review | Proposed ~0.4-mile Blue Line extension in a cut-and-cover tunnel under Cambridge Street from Bowdoin to a new Blue Line platform at Charles/MGH, giving the Blue and Red lines their first direct transfer; Bowdoin station would close. The project is in preliminary engineering and environmental review, and the MBTA's capital plan funds only that planning work, with no construction money. | Nov 13, 2026 |
| METRO Green Line Extension (Southwest LRT) | Metro Transit | MN | light rail | Under Construction | 14.5-mile, 16-station extension of the METRO Green Line light rail from Target Field in downtown Minneapolis through St. Louis Park, Hopkins, and Minnetonka to Eden Prairie. Construction is essentially complete and systems testing is underway, with passenger service set to begin June 12, 2027, years late and at more than double the original estimate. | Nov 13, 2026 |
| Eglinton Crosstown West Extension | Metrolinx | ON | light rail | Under Construction | 9.2 km (5.7 mi) westward extension of Line 5 Eglinton from Mount Dennis to Renforth, with seven new stations: four underground, two elevated over the Humber River valley, and one in an open trench. All tunnelling was finished by August 2026, and station construction is under way. A further 4.7 km link to Pearson Airport is still only being studied. | Nov 13, 2026 |
| Hamilton LRT | Metrolinx | ON | light rail | Funded | 14 km (8.7 mi) light rail line with 17 stops, running from McMaster University through downtown Hamilton along Main Street, King Street and Queenston Road to Eastgate Square. Enabling works are under way, and in April 2026 an Aecon-led alliance was chosen for the first major civil contract. Major construction is not expected before about 2028, and there is no opening date. | Nov 13, 2026 |
| Ontario Line | Metrolinx | ON | heavy rail | Under Construction | 15.6 km (9.7 mi) automated subway with 15 stations, running from Exhibition Place through downtown Toronto and up to Line 5 Eglinton at Don Mills Road. It is under construction: tunnelling began in April 2026, and Metrolinx now puts the cost at about C$34 billion with no fixed opening date. | Nov 13, 2026 |
| Scarborough Subway Extension | Metrolinx | ON | heavy rail | Under Construction | 7.8 km (4.8 mi) extension of TTC Line 2 Bloor–Danforth from Kennedy Station to Sheppard Avenue and McCowan Road, with three new underground stations. It replaces the closed Line 3 Scarborough RT. Tunnelling was more than 75% complete by August 2026, but the opening has reportedly slipped from 2030 to 2033. | Nov 13, 2026 |
| Yonge North Subway Extension | Metrolinx | ON | heavy rail | Under Construction | About 8 km (5 mi) extension of TTC Line 1 north from Finch Station along Yonge Street into York Region, with five new stations: three underground and two at the surface beside the GO Richmond Hill line. Early construction is under way. The tunnel launch shaft is finished, the first tunnel boring machine arrived in October 2026, and bids for the stations, rail and systems work closed in August 2026. | Nov 13, 2026 |
| Metrorrey Line 4 (Monorail) | Gobierno del Estado de Nuevo León | NLE | monorail | Under Construction | 7.62 km (4.7 mi) elevated monorail running west along Avenida Constitución from Hospital de Ginecología in downtown Monterrey to Pablo González, where it will meet the planned federal passenger train, with seven stations in the 2025 plan. A planned extension to Santa Catarina was dropped in 2025. The state reported works on Lines 4 and 6 at 96% (viaduct 95.6%, stations 56.7%) in September 2026; passenger service is targeted for 2027. | Nov 13, 2026 |
| Metrorrey Line 6 (Monorail) and Airport Extension | Gobierno del Estado de Nuevo León | NLE | monorail | Under Construction | 17.6 km (10.9 mi) elevated monorail from Hospital de Ginecología in downtown Monterrey through Parque Fundidora and along Avenida Miguel Alemán to Centro Apodaca, plus an extension to Monterrey International Airport. A test train reached Centro Apodaca in November 2026, but no part of the line has opened; passenger service is targeted for 2027 after a planned opening for the June 2026 World Cup was missed. | Nov 13, 2026 |
| Mexico City–Querétaro Passenger Train | ATTRAPI | HID | intercity | Under Construction | New ~226 km (140 mi) double-track passenger line from Buenavista in Mexico City to Querétaro, largely alongside existing freight tracks, with stations at Huehuetoca, Tula, San Juan del Río, El Marqués, and La Corregidora. Army engineers are building it; the federal government reported 32% progress in November 2026 and targets opening in 2027. | Nov 13, 2026 |
| Northeast Corridor Rapid Transit (Coastal Link) | MDT | FL | commuter rail | Funded | 13.5-mile commuter rail line on the Florida East Coast Railway from MiamiCentral in downtown Miami to the Aventura Brightline station, with five new stations. The project is in FTA New Starts engineering and its construction funding was completed in October 2026, but the track-access deal with Brightline is unresolved. Service is targeted for 2032. | Nov 13, 2026 |
| Gatineau–Ottawa Tramway (TramGO) | MIQ | QC | light rail | Planning | Planned 24 km tramway with 37 stations, as designed by the Société de transport de l'Outaouais (STO): two branches from Aylmer and the Plateau join in Hull and cross the Portage Bridge into downtown Ottawa. In February 2026 Québec moved the project to Mobilité Infra Québec, which put the full plan at about C$8B and is due to recommend a smaller, phased project to the government by November 30, 2026. | Nov 13, 2026 |
| Purple Line | MTA Maryland | MD | light rail | Under Construction | 16-mile, 21-station light rail line across the Maryland suburbs of Washington, D.C., linking Bethesda, Silver Spring, College Park, and New Carrollton, with Metrorail connections at all four. Construction was 92% complete in fall 2026 and live-wire testing covers more than half the line; passenger service is targeted for late 2027. | Nov 13, 2026 |
| Penn Station Access | MTA | NY | commuter rail | Under Construction | About 19 miles of Metro-North New Haven Line service from New Rochelle to Penn Station over Amtrak's Hell Gate Line, with four new stations in the East Bronx. Under construction since December 2022; the MTA now forecasts completion in 2030 rather than 2027, blaming limited track access from Amtrak. | Nov 13, 2026 |
| S-Line Raleigh to Richmond (R2R) | NCDOT | NC | intercity | Under Construction | 162-mile higher-speed intercity passenger rail route between Raleigh and Richmond, Virginia, on the former Seaboard Air Line 'S-Line' corridor, designed for trains of up to 110 mph. The first phase, an 18-mile Raleigh–Wake Forest segment backed by a $1.09B federal grant, is under construction with road–rail grade separations; NCDOT aims to extend Amtrak Piedmont service to Wake Forest by 2032. | Nov 13, 2026 |
| Capitol Corridor (Nashua–Manchester Commuter Rail) | NHDOT | NH | commuter rail | On Hold | Proposed ~30-mile extension of the MBTA Lowell Line commuter rail north from Lowell, MA to Nashua and Manchester, NH, on existing rail right-of-way with four new stations. The state-led effort stalled in 2022; the City of Nashua is now pursuing a ~13-mile Lowell–Nashua first segment. | Nov 13, 2026 |
| Lackawanna Cut-Off Restoration (Port Morris–Andover) | NJ Transit | NJ | commuter rail | Under Construction | 7.3-mile restoration of the abandoned Lackawanna Cut-Off from Port Morris Junction to a new station in Andover, Sussex County, including rehabilitation of the Roseville Tunnel. Tunnel work is largely finished, but the Andover station has not been built; NJ Transit now targets August 2031 for station completion and still faces a $19M funding gap. | Nov 13, 2026 |
| Second Avenue Subway Phase 2 | MTA | NY | heavy rail | Under Construction | About 1.5-mile extension of the Q train north from 96 St along Second Avenue and west on 125th Street to Lexington Avenue, with three new stations at 106 St, 116 St and 125 St. Backed by a $3.4B federal grant signed in 2023, it is under construction, with three of four main contracts awarded and completion targeted for fall 2032. | Nov 13, 2026 |
| O-Train Stage 2 (East and West Extensions) | City of Ottawa | ON | light rail | Under Construction | The unfinished part of Ottawa's 44 km Stage 2 LRT program: a 12.5 km, five-station Line 1 extension east from Blair to Trim, and a 15 km, 11-station extension west from Tunney's Pasture to Moodie (new Line 3) and Algonquin (Line 1). The east extension is built and in pre-opening testing with no public opening date; the west extension, targeted for 2027, was damaged by a July 2026 flood. Stage 2's Trillium Line south extension (Lines 2 and 4) opened in January 2025. | Nov 13, 2026 |
| Roosevelt Boulevard Subway | PennDOT | PA | heavy rail | Planning | Proposed 14.7-mile branch of SEPTA's Broad Street Line from Erie station along Roosevelt Boulevard (US 1) to Neshaminy Mall in Bucks County, with 12 new stations, mostly in tunnel with an elevated northern section. It is one of several transit options in PennDOT's Roosevelt Boulevard 2040 study, run with the City of Philadelphia and SEPTA. No alternative has been chosen and no funding is identified, while SEPTA itself depends on stopgap operating money. | Nov 13, 2026 |
| TramCité (Québec City Tramway) | CDPQ Infra | QC | light rail | Under Construction | 19 km light rail line with 29 stations from Le Gendre in the west, through Sainte-Foy, Université Laval, a 2 km tunnel under Parliament Hill, and Saint-Roch, to Charlesbourg. Utility relocation and tunnel portal excavation are under way; main construction is due to start in 2027 once the target price is approved, with service planned for 2033. | Nov 13, 2026 |
| Querétaro–Irapuato Passenger Train | ATTRAPI | GUA | intercity | Under Construction | New ~102–108 km (about 64–67 mi) non-electrified double-track passenger line extending the Mexico City–Querétaro train west to Irapuato alongside the existing freight railway, with five stations in Guanajuato. Construction began in September 2025; ATTRAPI reported 25% progress on October 31, 2026, and federal plans point to service in 2028. | Nov 13, 2026 |
| Stage 2 ION (Kitchener–Cambridge LRT) | Region of Waterloo | ON | light rail | Env. Review | 17 km extension of ION light rail from Fairway Station in Kitchener to downtown Cambridge, with seven new stations. Provincial environmental approval came in 2021, and in November 2025 Regional Council chose a full-length LRT over a bus rapid transit option. The C$3.1B project has no construction funding yet; the Region is asking the provincial and federal governments to pay its full capital cost. | Nov 13, 2026 |
| Saltillo–Monterrey–Nuevo Laredo Passenger Train (Tren del Norte) | ATTRAPI | NLE | intercity | Under Construction | New ~396 km (246 mi) passenger line from the Saltillo area through Monterrey to Nuevo Laredo on the U.S. border, built mostly alongside existing freight tracks for 160–200 km/h diesel-electric trains, with 11 to 13 stations. Construction began in September 2025; ATTRAPI put progress near 10% in September 2026, with service expected in 2028. | Nov 13, 2026 |
| Mi Tren Line 4 (Guadalajara–Tlajomulco Light Rail) | Gobierno del Estado de Jalisco | JAL | light rail | Completed | 21 km (13 mi) light rail line from central Tlajomulco de Zúñiga northeast to Las Juntas, on the Guadalajara–Tlaquepaque border, running beside the Ferromex freight corridor. It opened on December 15, 2025 with eight stations, after nearly three years of construction, at a reported cost of MX$9.5B. | Nov 13, 2026 |
| ACE Extension to Ceres and Merced (Valley Rail) | SJRRC | CA | commuter rail | Under Construction | Southern branch of the Valley Rail program, extending Altamont Corridor Express commuter trains from Lathrop down Union Pacific's Fresno Subdivision to Ceres (Phase I) and then about 34 miles further to Merced (Phase II), with new stations in Manteca, Ripon, Modesto, Ceres, Turlock, Livingston and Merced. Construction began at the Lathrop Wye in 2024, but rising costs and slow Union Pacific approvals have pushed first service from late 2026 to 2031 or later. | Nov 13, 2026 |
| West Seattle and Ballard Link Extensions | Sound Transit | WA | light rail | Funded | Two ST3 light rail extensions, planned together and split into separate projects in 2023. West Seattle Link (3.9 mi, SODO to Alaska Junction, two new stations) has federal environmental approval, is in final design, and targets 2035. Ballard Link (7.7 mi, SODO to Ballard through a new downtown tunnel, up to nine stations) is in environmental review; construction is funded only to Seattle Center, targeted for 2042. | Nov 13, 2026 |
| Blue Line Extension (Line 5) | STM | QC | heavy rail | Under Construction | 6 km underground extension of Montréal Métro Line 5 (Blue) east from Saint-Michel along Jean-Talon Street to Anjou, with five new stations. Under construction: the tunnel boring machine began its 4.6 km drive in May 2026, and the line is due to open in 2031. | Nov 13, 2026 |
| Sunshine Corridor | FDOT | FL | commuter rail | Planning | Proposed ~15-mile east–west SunRail branch, as traced here, linking the existing north–south line to Orlando International Airport and then running west along Taft-Vineland Road and SR 528 to the Orange County Convention Center and down I-4 to South International Drive. An optional spur would reach Disney Springs. Brightline would share the track toward Tampa. FDOT is leading a PD&E study requested by SunRail's local governing commission, but no construction funding exists. | Nov 13, 2026 |
| The Portal (Downtown Rail Extension) | TJPA | CA | commuter rail | Env. Review | Mostly underground, 2.2-mile extension of Caltrain, and later California High-Speed Rail, from the 4th & King terminus beneath Townsend and Second streets into the existing trainbox under the Salesforce Transit Center, with a new Fourth & Townsend station. The project is in the FTA Engineering phase with a $3.38 billion federal share set aside, but the funding plan is not yet complete. The state awarded $750 million in November 2026, and service is forecast for 2036. | Nov 13, 2026 |
| Tren Suburbano Lechería–AIFA Extension (Tren Felipe Ángeles) | ATTRAPI | MEX | commuter rail | Completed | 22.94 km (14.3 mi) electrified double-track branch of the Tren Suburbano from Lechería to Felipe Ángeles International Airport (AIFA), with six intermediate stations and an airport terminal. It opened on April 26, 2026, about three years behind its original 2023 target, with through service from Buenavista in Mexico City. | Nov 13, 2026 |
| Valley Link | Tri-Valley–San Joaquin Valley Regional Rail Authority | CA | commuter rail | Env. Review | 22-mile first phase of a planned 42-mile regional rail line from the Dublin/Pleasanton BART station over Altamont Pass to Mountain House, mostly in or beside the I-580 corridor. Phase 1 was environmentally cleared in 2024–25, but its estimated cost has roughly doubled to $4.4B. The authority has split it and is advancing an 11-mile Phase 1A to the Vasco Road ACE station in Livermore with battery-electric trains, targeted for 2032; Phase 1B to Mountain House has no construction funding. | Nov 13, 2026 |
| Colorado Connector (Front Range Passenger Rail) | FRPR District | CO | intercity | Planning | Roughly 190-mile intercity passenger rail corridor along Colorado's Front Range connecting Fort Collins to Pueblo through Denver Union Station, operating on existing BNSF and Union Pacific freight trackage. | Jul 14, 2026 |
| Tren Urbano Northwest Extension (Alternatives Analysis) | ATI | PR | — | Proposed | Federally funded feasibility study evaluating extension of Tren Urbano northwest from its Sagrado Corazón terminus toward Old San Juan, with a second alternative studying a branch to Luis Muñoz Marín International Airport; mode (bus rapid transit, light rail, or heavy rail) has not yet been determined. | Jul 13, 2026 |
| MAX Yellow Line Extension (Interstate Bridge Replacement Program) | TriMet | OR | light rail | Env. Review | Light rail component of the Interstate Bridge Replacement program extending the MAX Yellow Line roughly 1.9–3 miles from Portland's Expo Center across a new I-5 Columbia River bridge into downtown Vancouver, WA, with new stations at Hayden Island, Vancouver Waterfront, and Evergreen Boulevard. | Jul 1, 2026 |
| Northern Branch Corridor Project (Hudson-Bergen Light Rail Extension) | NJ Transit | NJ | light rail | Env. Review | Proposed ~10-mile extension of the Hudson-Bergen Light Rail north from its Tonnelle Avenue terminus in North Bergen, using existing CSX freight right-of-way through Ridgefield, Palisades Park, and Leonia to a terminus at Englewood Hospital. | Jun 1, 2026 |
| Central Subway North Beach Extension | SFMTA | CA | light rail | Planning | Proposed extension of the T Third Line (Central Subway) north from its Chinatown–Rose Pak Station terminus into North Beach, reusing subway tunnel already bored toward Columbus Avenue and Union Street; a relaunched 2026 study is comparing a minimal one-station extension against a longer option reaching Fisherman's Wharf. | Jun 1, 2026 |
| Everett Link Extension | Sound Transit | WA | light rail | Env. Review | 16-mile extension of Link light rail from Lynnwood through unincorporated Snohomish County to downtown Everett, largely following the I-5/Broadway corridor, with six stations plus a provisional SR 99/Airport Road stop. | May 29, 2026 |
| Sepulveda Transit Corridor | LA Metro | CA | heavy rail | Env. Review | Fully underground ~13-mile heavy-rail subway connecting the Van Nuys Metrolink Station in the San Fernando Valley to the E Line at Expo/Sepulveda, via a tunnel beneath the Sepulveda Pass serving UCLA and Westwood. | May 9, 2026 |
| Baltimore Red Line | MTA Maryland | MD | light rail | Planning | ~14-mile east-west light rail line connecting Woodlawn (Baltimore County) through downtown Baltimore to Bayview/Highlandtown, filling a historic east-west transit gap; a phased first segment and a lower-cost BRT alternative are also under consideration amid funding constraints. | May 1, 2026 |
| METRO Blue Line Extension (Bottineau LRT) | Metro Transit | MN | light rail | Funded | 13.4-mile extension of the METRO Blue Line light rail from Target Field Station through North Minneapolis, Golden Valley, Robbinsdale, and Crystal to Brooklyn Park, largely following County Road 81 (Bottineau Boulevard). | May 1, 2026 |
| Tacoma Dome Link Extension | Sound Transit | WA | light rail | Env. Review | ~8.5-mile extension of Link light rail from the Federal Way terminus south to Tacoma Dome Station, mostly elevated, with new stations at South Federal Way, Fife, and East Tacoma/Portland Avenue, connecting to the T Line and Sounder commuter rail. | May 1, 2026 |
| LYNX Silver Line | CATS | NC | light rail | Planning | Proposed east-west light rail line through Uptown Charlotte and Charlotte Douglas International Airport toward Matthews, Stallings, and Indian Trail; CATS is prioritizing a fiscally constrained ~10-mile initial segment from the airport to the Coliseum/Ovens area ahead of the full 26–29 mile vision. | Apr 1, 2026 |
| Metro Rail Expansion (University Station to Amherst) | NFTA | NY | light rail | Env. Review | 7-mile light rail extension of Metro Rail from University Station north through Amherst and Tonawanda to UB North Campus, adding 10 stations including two park-and-rides. | Feb 10, 2026 |
| San Diego Trolley Purple Line | MTS | CA | — | Planning | Proposed ~11-mile transit line from the San Ysidro Transit Center at the US-Mexico border through National City, City Heights, and Kearny Mesa to University Town Center/Sorrento Mesa; SANDAG has not yet finalized whether the corridor will be built as subway, above-ground rail, or Trolley (light rail). | Feb 9, 2026 |
| West Phoenix Extension | Valley Metro | AZ | light rail | Planning | Proposed ~10-mile light rail extension connecting the existing system near Indian School Road/Central Avenue west along Indian School Road to 75th Avenue, then south to Desert Sky Transit Center; designated the region's top light-rail priority in January 2026 after the Capitol Extension (CAPEX) project was cancelled. | Jan 28, 2026 |
| TCC T Line Extension (Tacoma Link) | Sound Transit | WA | light rail | Planning | 3.5-mile extension of the T Line (Tacoma Link) streetcar-style light rail from its Hilltop terminus northwest to Tacoma Community College, adding six stations including one near St. Joseph Hospital; grows the total T Line to 8.4 miles and 18 stations. | Jan 1, 2026 |
| North Corridor Metrorail Extension | MDT | FL | heavy rail | Planning | Elevated ~10-mile heavy-rail Metrorail extension along NW 27th Avenue from the MLK Jr. Metrorail Station north through Opa-locka to the Broward County line, part of Miami-Dade's SMART Plan. | Oct 31, 2025 |
| Interborough Express (IBX) | MTA | NY | light rail | Env. Review | 14-mile light rail line connecting Brooklyn Army Terminal (Bay Ridge) to Jackson Heights, Queens along the existing Bay Ridge Branch freight right-of-way, linking to 17 subway lines and the LIRR without passing through Manhattan. | Jul 1, 2025 |
| Green Line Extension to Sacramento International Airport | SacRT | CA | light rail | Proposed | Proposed ~12.5-mile extension of the Green Line light rail from downtown Sacramento through North Natomas to Sacramento International Airport, crossing the American River on a new bridge; SacRT is also weighing an interim bus rapid transit phase on the same corridor. | Jun 22, 2025 |
| L Line Central Rail Extension | RTD | CO | light rail | Proposed | A short, currently unfunded 0.8-mile light rail infill connection linking the L Line's downtown loop terminus at 30th & Downing to the A Line (airport line) at 38th & Blake, with two new stations. | — |
| TRAX Orange Line | UTA | UT | light rail | Planning | Proposed new TRAX light rail line splitting from the existing system near University South Campus, connecting the University of Utah's Research Park through downtown Salt Lake City, then sharing trackage with the Red/Green Lines to the airport; the preferred alternative adds 2.8 miles of new track and 8 stations. | — |
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