Home › Forums › setting the stage › Advantages question 1 › how many bridges This topic has 0 replies, 1 voice, and was last updated 2 years ago by quimico69. Viewing 1 post (of 1 total) Author Posts November 23, 2022 at 2:53 pm #7933 quimico69Participant Only one. There is a lot of planning involved including calculations. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In