Just before we reach the T-intersection with the eastern segment of
South Broadway we may still see on the right some of the destruction
caused by a devastating flood that roared down No Thoroughfare and other
canyons on September 7, 1978, as a result of what was termed the worst
cloudburst to hit Glade Park, the Monument, and the Grand Valley since
1958. A house on the flood plain just above the bridge was badly damaged
and was filled with 4 feet of mud, and the Monument Road bridge across
No Thoroughfare Canyon nearest the intersection was washed out,
necessitating the rerouting of traffic to and from the East Entrance of
the Monument. Moral—never build a house or even pitch a tent in a dry
wash or arroyo in desert regions! Incidentally, indirect measurements by
engineers of the U.S. Geological Survey indicated a discharge of 9,290
cfs just above the washed out bridge in No Thoroughfare Canyon, and
2,980 cfs in Red Canyon beneath the Broadway bridge.