From the Longmont Times-Call (Scott Rochat):
Longmont workers and residents have kept a closer eye on both Left Hand Creek and the St. Vrain River during the last week, when the annual spring runoff of mountain snowmelt began.
During a regular inspection for the water division, Longmont city workers spotted flood debris clogging a stretch of the creek near the 1300 block of Missouri Avenue. Such debris has been a special concern since a blocked channel could lead to more flooding…
In September’s flood, water from Left Hand Creek turned Missouri Avenue into a small river. The flooding left large amounts of mud in the nearby Southmoor Park neighborhood, but city officials and neighbors said afterward that damage would have been even worse without the flood-control improvements that the city made to the creek last summer.
Flows in Left Hand Creek were at 87 cubic feet per second Monday evening, according to online information from the Colorado Division of Water Resources. Levels in its parent stream, the St. Vrain River, were at about 350 cfs at midday — higher than average for the Longmont area at this time of year, according to public works director Dale Rademacher — but had fallen to 307 cfs Monday evening.