Tunnel
$2.5M
A tunnel is an underground passageway structure typically used for transportation, utilities, or water management, with construction costs varying widely by type, length, and method.
Estimated value as of 2026 · Source: Average of microtunneling/road tunnel costs per km from
Fun Fact
Tunnels in New York can cost up to $1.5–2.5 billion per mile due to high labor, regulations, and complexity, far exceeding global averages.
Price History
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