Why can t vehicles larger than Class E vehicles (oversized vehicles allowed during special operations) be allowed to use the tunnel?
Class E vehicles are more than 10.0 feet wide or 14.0 feet high, but not more than 11.0 feet wide and 15.0 feet high. Vehicles larger than this would scrape the tunnel. Special hours of operation are established by schedule to accommodate Class E vehicles. During these periods, the speed limit may be reduced, drivers will receive special instructions, and the tunnel staff will direct and assist the larger vehicles as needed. These special requirements ensure that oversized vehicles will not scrape the sides or crown of the tunnel. Also, by segregating these large vehicles from the general public, the likelihood of a traffic accident between oversized and small vehicles is reduced.
