Study flags geological risks for Nashville tunnel project

Technology · First reported 31 Oct, 10:30 · Updated 11:22

Image: Wikimedia Commons · NASA Johnson Space Center · Public domain

A geological assessment commissioned by the Southern Environmental Law Center warns that karst terrain along the planned Nashville-to-airport tunnels could bring flooding, sinkholes and groundwater contamination risks. The Boring Co. has said its machines would try to avoid karst areas; the assessment questions whether that is feasible and says detailed plans have not been shared with the state.

The planned Music City Loop is a 10-mile pair of tunnels connecting downtown Nashville with the international airport; construction began late last year, with opening targeted for 2027.
A study commissioned by the Southern Environmental Law Center says Nashville’s karst geology could pose risks including flooding, sinkholes and contamination spreading through groundwater.
The project is estimated to cost $300 million, which the article says The Boring Co. is covering; the state oversight panel had met once and had no further meetings scheduled.

Summary written by Lux AI from 2 articles

Key facts

Planned route: 10 miles, linking downtown Nashville and the international airport
Target opening: 2027
Estimated cost: $300 million, covered by The Boring Co.
Study concerns: Potential flooding, sinkholes, ground subsidence and groundwater contamination
State panel: Had met once; no additional meetings were scheduled at the time of the article