Checking a Conway or Myrtle Beach property
A Horry County flood map, a record of a past flood, and a terrain drainage map answer different questions. For a home in Conway, Myrtle Beach, or Socastee, start with the exact address rather than a county-wide risk label. This guide separates those sources so you can compare them without mistaking a modeled flow line for evidence that a building flooded.
How do I check a Horry County address for flood zones?
- Enter the address above, or select a location on the map. Compare Elevation with Surface Drainage to inspect modeled downhill paths. Confirm that the selected point is the property you intended.
- Open Hazards → Flood to compare the separate FEMA flood zone layer. For an official map check, search the same address in the FEMA Map Service Center and review the effective map and any relevant map changes.
- The Horry County FEMA flood maps page links to county map resources. The county's flood GIS instructions describe searching by address or parcel identifiers and switching current and preliminary layers. A preliminary layer is not the same as an effective map.
Can I check flood history by address in Conway?
Terreflow does not provide a verified flood-loss or insurance-claim history for an individual house. For local event context, Horry County's Supplemental Flood Zone study metadata (PDF) explains a separate mapping exercise based on Hurricane Florence's 2018 high-water marks. It includes parts of the Waccamaw River and its tributaries, the Intracoastal Waterway near Socastee, and the Little Pee Dee River.
That study is not a continuously mapped, complete history of flooding across the county. Its metadata identifies coverage gaps where suitable observations were missing. A location outside a mapped area is not proof that a house never flooded; an event boundary is not an insurance-claim record. Use the study as context and ask for property-specific documentation separately.
Why can drainage and FEMA flood maps look different?
Terreflow's flow lines describe land shape, not past flooding, a storm forecast, or water depth. The USGS 3DEP products guide explains elevation datasets and their different resolutions. A terrain view does not establish how a particular storm, river level, tide, drainage pipe, or local grading will affect a building. Read it alongside official hazard mapping, not as a replacement.
Who can answer local property and drainage questions?
The county's Map Your Move flood information directs buyers to its floodplain manager for property impacts and recent flood events, and to Stormwater for drainage areas and easements. Confirm which county or city office serves the property before requesting records or project advice. For a site-specific drainage design, seek a qualified professional rather than relying on this map alone.
This guide is free to read. Interactive analysis shares the first three free locations across county and city pages and Analyze; the fourth distinct location requires a one-time $4.99 pass for 30 days, with no subscription or auto-renewal. Analyze a specific address.