Streets in South Norwalk must be raised by at least 3 feet to prepare for future storm surges in 2050, experts with the Connecticut Institute for Resilience and Climate Adaptation report. South Norwalk is one of seven coastal cities selected by CIRCA for climate mitigation planning. In major storms like Hurricane Sandy, South Norwalk can see typically 4 1/2 to 5 feet of storm surge, which causes major flooding throughout South Norwalk. CIRCA projects that the Long Island Sound will rise 20 inches by 2050 due to climate change, which would worsen the issue. CIRCA outline solutions the city can take to combat this issue, including raising the road by 3 feet so they are 10 feet about the sea level. Officials did not detail the engineering and construction work that would be needed to elevate the roads. But raising the street is more complicated in dense areas like South Norwalk because all the driveways and roadway feeding onto the main road will need to connect to the new height.
https://www.stamfordadvocate.com/news/article/sono-streets-raised-flooding-climate-change-18112495.php