但市府官员与隧道业界人士普遍质疑其技术与安全准备不足，尤其纳什维尔周边为易形成陷穴的石灰岩地层，可能带来地表塌陷、影响州际要道、破坏管线、地下水渗入与淹水等风险；营运面也被批不切实际：若要达到每小时 1,000 人的低端目标，几乎得每 3.6 秒就送出一台单乘客车辆，且路线还包含看似 90 度转弯，费用与回收期也未交代清楚。
政治与治理层面同样紧绷：共和党州长比尔・李公开力挺，称其为前瞻且财政负责的合作，州政府并提供州有停车场作为施工基地，路线多在州管道路下方，使市府难以阻止；纪录也显示州方曾在 2025 年 6 月会议中强调要「掌控叙事」。面对外界疑虑，Boring 以公开场合与书面答复主张会有监控中心、通风与灭火、符合规范的紧急出口，以及可让消防员进入的应变车辆；然而包括隧道机具商主管在内的专家反驳其地质与掘进说法不符现实，并指出 Boring 过往多次高调承诺未落地，除拉斯维加斯的观光性质路段外鲜有可供公众使用的成果。
Elon Musk’s tunneling startup, The Boring Company, says it is ready to begin its first full transit corridor in Nashville: two roughly 10-mile tunnels between downtown near the state capitol and the airport, using chauffeured Teslas in the “Music City Loop.” The company claims the system can move thousands of people per hour, will be safe, and will be entirely self-funded, costing taxpayers nothing while requiring “a few hundred million dollars” in private spending.
Nashville officials and veteran tunneling experts argue the proposal is risky and operationally dubious, given the region’s sinkhole-prone limestone and the potential for ground collapse, utility damage, and groundwater flooding. Critics also challenge the throughput math—serving even 1,000 travelers per hour could imply a single-passenger car departing every 3.6 seconds—and question feasibility claims like average 60 mph travel on a route that appears to include a 90-degree bend, with pricing and payback left unspecified.
The project’s momentum is fueled by state support in a politically divided landscape: Governor Bill Lee has praised the partnership, the state is providing staging access and a route largely under state-controlled roads, and records show officials were attentive to managing the public narrative. Boring executives have described monitoring, ventilation, fire suppression, code-compliant emergency exits, and specialized response vehicles, but experts say the company’s geologic assertions and tunneling claims don’t match real-world conditions, and they point to a history of Musk-linked grand promises that never materialized beyond the Las Vegas loop. (Key numbers: 2025, 6)