Flowery Branch, which has set aside money over the next few years for stormwater management, plans to study four culverts along Flowery Branch Creek.
City Council voted Thursday night to pay Norcross engineering firm Pond & Co. $21,000 for the analysis.
Stormwater problems have plagued the city for years, highlighted by the December 2009 collapse of the Spring Street culvert, stranding residents in a 50-unit apartment complex.
“This is simply an analysis to make sure that those other culverts have sufficient capacity,” City Planner James Riker said. “It could very well be the case that their analysis concludes that those culverts are fine, and we can move on and start thinking about other things.”
Pond designed the new Spring Street culvert, “so they have some familiar engineering background ... and they were extremely responsive in that matter,” Riker said.
“The day the (Spring Street) culvert washed out, they had three engineers here coming up with a design solution for us.”
Speaking to this week’s heavy downpours, Riker said the city had some storm-related issues, including the unearthing of a coffin.
“Although these events don’t happen that often, they certainly are capable of happening,” Riker said.
If the analysis shows a need for culvert replacement, it could also indicate which ones should be done first.
“We can take that order and evaluate it against your capital improvement plan and decide if and when they can be replaced,” Riker said.
“For example, we have (a culvert) that goes under Mulberry Street, which is, for the most part, a cul-de-sac,” he said. “So, if that culvert were to wash out, we would be in the same condition we were in with Spring Street.”
In other business, Riker announced that a city application for storm sirens was accepted by the Georgia Emergency Management Agency.
The sirens would be placed in the Sterling on the Lake subdivision off Spout Springs Road, near the city water tower downtown and at Alberta Banks Park off Jim Crow Road.