The parts may not fit together, it may be too long, too short, too wide or too narrow. It could fall down. It will likely take time and cost money to fix.
Bridge-It happened in 1984.
Battle of the Bridge happened in 634.
Tjörn Bridge happened in 1980.
Norton Bridge happened in 2003.
Silver Bridge happened in 1967.
Bridge Builder happened in 2000.
Angers Bridge happened in 1850.
Battle of Radcot Bridge happened in 1387.
Battle of Iron Bridge happened in 637.
Battle of Linlithgow Bridge happened in 1526.
Battle of Kjölberg Bridge happened in 1814.
Bull bridge accident happened in 1860.