Tunnel proposed by University of Washington professor Bob Ortblad would be 4 miles long and it would cost $200 million.
https://www.southwhidbeyrecord.com/news/uw-professor-floats-idea-for-tunnel-between-whidbey-mukilteo/
The underwater alternative to the state’s ferry system involves a tunnel 610 feet below sea level.
https://www.southwhidbeyrecord.com/news/uw-professor-floats-idea-for-tunnel-between-whidbey-mukilteo/
UW professor floats idea for tunnel between Whidbey, Mukilteo
www.southwhidbeyrecord.comThe underwater alternative to the state’s ferry system involves a tunnel 610 feet below sea level.