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Demo shows thousands of Charleston County parcels could be inaccessible under a 100‑year storm scenario
Summary
Fernleaf's AccelaDAP demo highlighted road-accessibility analytics: a local James Island example showed ~500 properties potentially inaccessible, and the demo reported a countywide analytic of about 72,000 properties inaccessible under the USGS 100‑year flood extent; participants discussed Palmetto and ReadyOp as staging resources.
Fernleaf consultant Matt Hutchins walked participants through AccelaDAP’s road and parcels module and showed how the platform identifies properties potentially made inaccessible by flood extents. In a countywide analytic Matt reported, "On the top right, we can see countywide, there's 72,000 properties inaccessible under this storm scenario." He zoomed to a James Island neighborhood to show a localized view in which roughly 500 parcels appeared inaccessible and roadways flagged in red for emergency-responder inaccessibility.
The demo layered critical facilities and point-of-distribution (POD) tags with flood-depth estimates and social-vulnerability metrics (for example, percent of housing units without vehicles) so planners can consider where to pre-stage resources. Participants discussed other staging tools that jurisdictions use — Palmetto (a free regional platform) and ReadyOp (a resource for some fire departments and opt-in users) — and requested the data documentation links Matt said would be posted after the session.
"On the top right, we can see countywide, there's 72,000 properties inaccessible under this storm scenario," Matt Hutchins said during the demo to illustrate the scale of potential access loss in a major flood event.
