Bridge Guidelines and details for the Northeast Extreme Tee (NEXT) Beam. These guidelines and guide details have been developed for the purpose of promoting a greater degree of uniformity among owners, engineers and industry with respect to planning, designing, fabricating and constructing the Northeast Extreme Tee (NEXT) Beam for bridges. These guidelines are for NEXT "F" , "D" and "E" beams. The guide includes section properties and design details.