Miami Affairs | The Navarro Report
The half-cent sales surtax that has funded nearly a quarter century of Miami-Dade transit expansion is bringing in meaningfully less money than it used to, the Citizens’ Independent Transportation Trust learned last week, a decline that arrives at an inconvenient moment: the county’s flagship SMART Plan corridor is still years from full completion and has already blown past its original budget and timeline more than once.
April collections from the transit surtax came in at $26.4 million, down $4.2 million, or nearly 14 percent, from the same month a year earlier. That was not a one-month anomaly. It followed an 8.54 percent decline in the first quarter of this year and a 7.36 percent drop in the final quarter of 2025, according to figures presented to the trust, the citizen oversight body charged with ensuring the surtax is spent as voters intended. Three consecutive quarters of falling collections on a tax approved in 2002 specifically to fund transit growth is a trend, not noise, and it directly limits how much new expansion the county can responsibly fund without turning to its general budget or new debt.
The timing compounds the problem, because the surtax’s most visible current project, the South Dade Transitway and its connecting Dadeland South Metrorail station, has a well-documented history of costing more and taking longer than planned. The Citizens’ Independent Transportation Trust last week approved an additional $1.9 million in oversight spending tied to design changes linking the new South Dade Bus Rapid Transit service to the Dadeland South Metrorail Station, on top of $6.9 million in oversight costs already added earlier this year, which itself came after a July 2023 contract originally budgeted at $66.8 million and 685 days ballooned to 949 days, adding bus chargers that were not part of the original design.
That intermodal station work is only the latest chapter. The underlying Transitway itself, a 20-mile bus rapid transit corridor running from the Dadeland South Metrorail Station to a park-and-ride terminal in Florida City, was originally priced at $299.9 million and expected to open by January 2023. Supply chain shortages in fiber strands needed for the corridor’s communications systems pushed that timeline back a full year, adding $3.7 million in extended engineering and inspection fees along the way. By the time the bus rapid transit service actually launched, the total project cost had climbed to roughly $368 million, and even that number came with an uncomfortable public reception: a county presentation showed the new service would save most riders only about four minutes on a 70-minute trip between Florida City and Dadeland, prompting one transportation board member to say publicly that the result was not what residents were promised for the money.
None of this is happening in isolation from the county’s broader transit ambitions. Miami-Dade Commissioner Oliver Gilbert has estimated that fully building out the SMART Plan’s remaining corridors, including routes to Miami Beach, Aventura, and the Kendall corridor toward the Everglades, would cost at least $6 billion, a figure he floated after nearly 80 percent of voters said in a nonbinding 2024 ballot question that they wanted more rail and transit investment. That voter appetite is real, but it now collides with a funding source that is contracting rather than growing, and with a track record on the one corridor already built that shows real difficulty controlling costs and schedules even on projects with dedicated, voter-approved revenue.
For a county government that oversees transit spending through the citizen trust precisely to prevent surtax dollars from drifting into unrelated uses, the immediate question is arithmetic rather than ideological: with April collections down $4.2 million from the prior year and oversight costs on existing infrastructure still climbing, what portion of the promised SMART Plan corridors can actually be funded through the surtax alone versus what will require new bonding, state assistance, or a scaled-back scope. County commissioners were reportedly reassured that the added Dadeland South oversight costs would come from transportation surtax funds rather than the general county budget, but that reassurance means less if the surtax itself continues shrinking.
The broader accountability point is straightforward. Miami-Dade voters approved this surtax on the premise that a dedicated revenue stream would let the county build rail and rapid transit without competing against police, parks, and other core services for general fund dollars. That premise depends on the tax base holding steady or growing. Three straight quarters of decline, paired with a station project that has already required $8.8 million in added oversight spending beyond its original scope, suggests the county’s transit ambitions are now running ahead of the mechanism built to pay for them. Whether that gap gets closed through better cost discipline on future SMART Plan segments, a genuine reckoning with what $6 billion in remaining build-out actually requires, or simply slower progress than voters were told to expect, is the question Miami-Dade’s transportation trust and county commission will have to answer well before the next corridor breaks ground.
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