[問題] 國3大溪的埔頂隧道為何要特意加蓋?
每次經過國3大溪附近就會看到這個特別的隧道
感覺好像其實不用這個隧道 只是在上面刻意加了一層屋頂
用google map及街景去看 上方就是住宅社區和空地 還有道路
為什麼上面還刻意要蓋一個屋頂呢?
一般不都挖空 上面蓋幾座連接橋就好了
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