My home has a basement garage that flooded last year from the street. Street flooding over the course of 1-2 hours was enough to just crest over the sidewalk and cascade down our driveway and overwhelm the sumps, flooding the basement in 3 feet of water. We’ve lived here for 5 years and haven’t had this issue before. If I had put sandbags it wouldve been fine - I could certainly pay more attention to weather reports in the future and put our bags when storms are expected but would like a solution that doesnt rely on my putting out and taking in sandbags all winter.
I’m considering a more permanent solution this summer - installing a gradually sloped 1” high cement berm at the edge of the sidewalk to provide just enough elevation to keep waters out, but not enough to be a trip hazard. Does anyone have a better idea? Our neighbors with similar design had more powerful sump pumps and they were overwhelmed as well, so I don’t think that’s the solution…