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Some advantages: - no impact on environment, birds, bugs, animals, trees, etc... - can use surface land for other things - no weather exposure
by adverbly 3y ago
Some advantages:
- no impact on environment, birds, bugs, animals, trees, etc...
- can use surface land for other things
- no weather exposure
- johannes1234321 3y ago> - no impact on environment, It requires tons of concrete, which causes lots of CO2. Also might require ground water control, which might impact lakes etc. nearby. Tunnels often are still beneficial, but it's not like there is no impact.