While I don't have details for you, this NOAA aftermath imagery page does show the flooding from Florence when it was taking place in Conway, SC taken on Sept 19th. The Socastee & ICW & beach imagery was taken earlier on Sept 16th, the greater MB area 17th so this may not show any flooding that may have occurred from the ICW. (You can turn imagery dates on/off in top right corner of page with the layers symbol (stack of paper):
https://storms.ngs.noaa.gov/storms/f....7121/-78.9491
In addition to the FEMA flood maps mentioned above, you may want to also check out the hurricane storm surge maps. Here's the official storm surge maps from the US National Hurricane Center. Note: These are considered 'near worse-case’ scenario, each storm will be different, some storms will cause flooding others may not at all, these assume storm comes in right at high tide(surge is the rise in water above normal tide level), highest surge is typically found on the NorthEast corner of the enter point/eye of a hurricane and less further away from that point you go, every mile makes a difference in hurricanes, you'll need to use the links at the top of the page to change storm category as water is usually higher with higher the storm category, the colors represent water depth over normally dry ground so yellow means 3 to 6ft water depth possible and red indicates 9+ft possible over normally dry ground, etc., the map does NOT take into account rain or regular river flooding (See FEMA maps), map does include waterways connected to the ocean as surge can travel up waterways, map is considered accurate down to 'neighborhood' level so you can't zoom in to your specific house, keep in mind only 4 Cat5's have ever been known to hit the US with last being Michael in 2018. This year will mark the 30th anniversary of Hugo (1989), the last Cat4 to hit the SC coast.
https://noaa.maps.arcgis.com/apps/Ma...935fad&entry=1