Sego Lily Dam project combines art and history with disaster prevention

SALT LAKE CITY — Sometimes life imitates art, but occasionally an artist's vision can depict real-life history.
Environmental architect and landscape designer Patricia Johanson didn't grow up in Utah, but she has become an amateur historian of the state's rich Mormon culture.
It was that intellectual curiosity that inspired her to create a history-telling artistic rendering of the early pioneer trek into the Salt Lake Valley by designing and supervising construction of the Sego Lily at Sug