The gist: Dozens gathered at a private home in Lafayette’s Quail Hollow neighborhood to get answers from public officials on efforts to relieve flooding in what was one of the hardest hit areas in the floods of August 2016. Begging for projects that would make inches of difference, residents were told there was meaningfully little that could be done in the near term.
Work on a coulee lateral that drains part of the neighborhood has stalled. Two gas lines were discovered by work crews in the last few weeks, according to Public Works drainage coordinator Fred Trahan, pausing cleanup on the ditch that runs behind Cornelius Street, near Comeaux High School. Most of the homes on Cornelius flooded in 2016. Some have flooded again since.
LCG’s drainage project dashboard lists the project as under budget and on schedule to have been finished at the end of June. Residents have been clamoring for the work to be done on the lateral — designated Isaac Verot Coulee Lateral 7 — since 2016. Trahan said in an email to The Current that the project was at one time ahead of schedule, but weather delays and the discovery of the two gas lines interrupted work.
Quail Hollow and its sister neighborhoods aren’t designed to handle recent flooding events. Trahan noted the 40-year-old subdivisions were built long before developers were required to add detention facilities to capture stormwater and reduce runoff. Increasingly intensifying rains are overwhelming a system built for lighter rains. Public Works is considering a diversion project for the bowl-shaped basin, an intervention expected to be costly and long in the making.
“Can we do it? Yes. But it won’t solve the problem,” Trahan said, explaining that the backflows in 25-year storms would still topple into homes.
Cost could prohibit any real solution. Meanwhile, people are trapped in their homes. What interventions have been offered, many by frustrated residents, are unlikely to shave much more than an inch off of rising water levels during a big storm. Several homes have gone on the market since 2016, with no takers. Much of the neighborhood is now part of a 100-year flood zone, meaning at elevated risk, according to FEMA flood maps adopted in 2018. That wasn’t the case when many residents bought their homes years ago.
“One day, it may be cheaper to do buyouts,” Trahan told me.
The coulee behind Cornelius can’t handle the added volume of water shedding into it from widespread development and urbanization, UL geosciences professor Gary Kinsland told me last year. Kinsland’s mother-in-law lives in the neighborhood, and he surveyed the area following the 2016 floods. He’s studied the relationship between urbanization and increased flooding in Lafayette Parish. In Kinsland’s opinion, routine maintenance wouldn’t prevent flooding related to the collision of intensifying rains and proliferating pavement.
Officials promise that efforts are underway. Councilwoman Nanette Cook and State Rep. Stuart Bishop, who represent the neighborhoods at local and state levels, respectively, reiterated steps taken in their arenas of power. Cook reminded residents of a proposition on ballots this fall to divert $8 million in library funds to drainage and other capital projects, and noted she added a $5 million line item to LCG’s budget for spot dredging in the Vermilion River, a project generally believed to have limited, if any, impact on flooding in Quail Hollow. Bishop, for his part, promised to push the state department of transportation to clear out blockage under state bridges and pressure the U.S. Army Corps of Engineers to move on the Vermilion.
“Obviously, we don’t want to leave, because we’re here fighting for our homes,” said Melanie Roy, a Cornelius Drive resident. Roy demanded that nearby retention ponds, which she says maintain a high water level for aesthetic purposes, be lowered ahead of named storms. Trahan conceded it was feasible but cautioned that it may not do much good.
“Can we try it?” Roy replied, exasperated and drawing applause from her fellow residents.
Why this matters: Stormwater management is a quagmire in the parish and a political lightning rod. Simply put, no two drainage problems are alike, and in a time of limited resources, competing concerns are inevitable. In some cases, authorities are throwing pennies at $10 problems. Meanwhile, residents are emotionally drained by years of flood anxiety and what they see as inaction.
Thanks for this article on a complex subject. In my opinion, dredging the Vermilion needs to be highest priority. All the other drainage improvement projects are of no value if there is no place for the water to go. I look forward to seeing the Corps' hydraulic analysis report on the Vermilion due out in about 4-5 months. Until then, the Corps' 1995 report on alternative Vermilion River flood measures gives some good information.
MIchael, do you have a copy of that report? I've not seen it.