New estimates put Palo Alto’s three south Caltrain crossings above $1.5 billion, and the Rail Committee is leaning toward Charleston Road first. The post walks through what each design would change for the neighborhoods beside the tracks.

Electric Caltrain approaching a lowered crossing gate beside Alma Street in south Palo Alto at blue hour Photo: Houseberry
On September 8, 2026, Palo Alto’s Rail Committee reviewed new estimates that put Caltrain grade separations at Charleston Road, East Meadow Drive and Churchill Avenue above $1.5 billion combined, with a Charleston underpass alone at $480 million to $530 million. The full council is tentatively set to take up the designs on September 28.
Charleston, where drivers on Alma Street queue at the gates to turn across the tracks, is the city’s busiest rail crossing. In the peak hour, the city’s 2020 fact sheet projected a total gate-down time of 9 minutes once electric service began. It is also the crossing the Rail Committee now favors taking on first.
The discussion pointed toward Charleston. According to San José Spotlight’s report on the meeting, Councilmember Ed Lauing called the costs “staggering” and suggested concentrating on Charleston. Chair Pat Burt said even Charleston plus nearby bike and pedestrian upgrades would bring “a lot of construction impacts,” and that separating all four of the city’s crossings would likely take “at least two decades.”
Those designs have a paper trail. The council picked a preferred design for each crossing on December 15, 2025, and residents saw the refined 15 percent drawings at two Mitchell Park Community Center meetings on August 25 and 26, per the city’s grade separation project page.
The committee advises, and the full council decides. On September 28 it is expected to weigh moving the designs to 35 percent and starting environmental documentation, which the city expects to finish in fall 2027. That step is what lets Palo Alto apply for the larger construction grants.
The estimates below are the ones the Rail Committee reviewed this week.
| Crossing | Design the council picked (Dec. 15, 2025) | Latest estimate (Sept. 2026) | Where it stands |
|---|---|---|---|
| Charleston Road | Underpass for cars, bikes and pedestrians, with a direct ramp from Alma Street | $480M to $530M | Committee discussed starting here, Sept. 8 |
| East Meadow Drive | Hybrid: tracks raised on an earthen berm or podium, road lowered | $1B to $1.3B for Charleston and Meadow together | Would follow or pair with Charleston |
| Churchill Avenue | Partial underpass, plus a bike and pedestrian crossing at Seale Avenue | $420M to $450M | Council rejected closing it to cars, 7-0, on May 11, 2026 |
The funding side is short. Palo Alto’s $20 million covers design and environmental review only. Construction money would have to come from VTA’s 2016 Measure B sales tax plus state and federal grants the city has not yet won.
Charleston carries the most traffic of the three. The city’s 2020 Connecting Palo Alto fact sheet counted about 1,080 cars crossing at Charleston in the peak hour, against 970 at Meadow and 800 at Churchill. It is not the cheapest, though. Churchill’s partial underpass is estimated $60 million to $80 million below Charleston’s underpass.
Churchill’s path changed this spring. After a push to close it to cars, the council voted 7-0 on May 11 to keep it open and stay with the partial underpass, while funding security guards at all four crossings and speeding up a quiet zone, the Palo Alto Daily Post reported. The guards cost $1.7 million a year, split between the city and the Palo Alto Unified School District.
Three neighborhoods on our Palo Alto neighborhood rankings sit closest to the Charleston crossing. Charleston Meadow sits on the west side between the tracks and El Camino Real, overall 4.1 out of 5. Fairmeadow, the Eichler tract known for its circular streets, sits on the east side, also 4.1. Greenmeadow, reached from East Charleston Road at Nelson Drive a few blocks southeast, scores 4.8.

For a block near Charleston, the underpass would end the gate wait, with cars, bikes and pedestrians passing beneath the tracks. The direct ramp from Alma Street keeps drivers on Alma connected to Charleston. Trains would also stop sounding horns for that crossing, since the federal horn rule applies only where road and rail meet at grade.
The trade is the build. Charleston Road would be dug down beneath tracks that stay in service. Mountain View’s Rengstorff Avenue underpass, a similar road-under-rail design a few miles down the line, is planned as a 30-month job, according to the Mountain View Voice.
On price, Charleston Meadow’s August median of $3.29 million sits $1.15 million under the citywide July median of $4.44 million, and Fairmeadow’s $3.53 million sits $910,000 under. Both score a 5.0 on schools.
We would not pin that gap on the gates. Housing stock and distance from downtown differ too, and small-neighborhood medians move a lot month to month. Greenmeadow went from $3.28 million in July to $4.26 million in August.
A Charleston-first plan leaves the gates in place everywhere else. At Churchill, that means Southgate, the small grid between Churchill, El Camino and the tracks (overall 4.1, July median $4.22 million), and Old Palo Alto across Alma (overall 4.6, August median $5.96 million) keep crossing at grade.
The horns stay with them for now. Trains must sound four blasts approaching each grade crossing, and the horn reaches 100 decibels from the first train around 5 a.m. until well past midnight, per San José Spotlight’s quiet zone reporting. Churchill’s quiet zone has $1 million in the current budget, while Meadow and Charleston are on separate timelines.
East Meadow is the odd middle case. Fairmeadow and Charleston Meadow border both Meadow and Charleston, so a Charleston-only build would give them one separated crossing and one gated one.
The pressure on these crossings grows with service. Caltrain launched electric service on September 21, 2024, with trains every 15 to 20 minutes at peak hours at 16 stations and every 30 minutes on weekends, per Caltrain’s service announcement.
The same 2020 city fact sheet projected peak-hour trains rising from 8 to 12 with electrification, which is where its 9-minute gate-down estimate, 15 percent of the peak hour, comes from. More trains means more gate-down minutes at every crossing still at grade.
Mountain View’s Rengstorff underpass, a few miles south, is further along. It was trimmed to $395 million, leans on $296 million in Measure B money and faced a $99 million gap as of November 2025, with construction proposed for 2027. Charleston’s estimate runs $85 million to $135 million above Rengstorff’s trimmed budget.
Blocks near Alma differ in which crossing they use to get east or west. Houseberry’s neighborhood pages linked above carry the scores and monthly medians used here.
The council is tentatively scheduled to take up the 15 percent designs on September 28, 2026, and the Rail Committee meets again on November 10.
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