Holden Beach-Ocean Isle ICW corridor — Two Bridges, Ten Miles of Waterway, and a Real Mainland Boating Community

What This Corridor Actually Is

This page exists because a real, continuous, named stretch of the Atlantic Intracoastal Waterway runs between Holden Beach and Ocean Isle Beach, and almost nothing about that stretch is covered by either town's own oceanfront-focused hub page on this site. The two islands are each single-bridge barrier islands -- Holden Beach reached only by the Holden Beach Bridge (NC 130, dedicated May 13, 1986, an 1,800-foot high-rise span at ICW Mile Marker 323.6 with 65 feet of vertical clearance) and Ocean Isle Beach reached only by the Odell Williamson Bridge (NC 904, completed 1986, at Mile Marker 333.7, also 65 feet of clearance) -- and both bridges cross the same waterway, into the same general mainland area of southern Brunswick County. The distance between those two mile markers is 10.1 statute miles: a boat can run from one bridge to the other, inside the protected ICW, in a fraction of the time a car needs to make the same trip by road, because there is no direct coastal route connecting the two islands. A driver has to leave the coast, cross back onto the mainland, and come back out to the other island -- a documented 21-mile, roughly 39-minute drive via NC 130 and connecting mainland roads, per TravelMath's routing data. That water/road asymmetry is the single most concrete fact defining this corridor's identity: for a boater, this is one continuous, connected stretch of coast; for a driver, it is two separate towns with a real trip between them.

The mainland side of that stretch is not empty land waiting to be developed -- it already holds a specific, real mix of gated marina communities and a working fishing town. On the Holden Beach side, Seascape at Holden Plantation sits directly across the ICW from the island: a 500-acre, gated, forested community with roughly 500 home sites and its own private marina featuring a dockhouse, dual boat launch, and 75 slips with water and electric service for vessels up to 55 feet. On the Ocean Isle Beach side, the mainland community of Sommersett sits at the end of Sommersett Road on the ICW, its marina operated as Ocean Isle Marina & Yacht Club -- a 2000 Sommersett Road SW facility (NC DEQ-certified as a North Carolina Clean Marina in January 2024) that takes vessels to 60 feet and 14 feet of beam, offers 30- and 50-amp shore power, and sits a documented 4 miles from Shallotte Inlet and 7 miles from Little River Inlet as ocean-access routes. Between the two, along the Lockwood Folly River where it meets the ICW, Brick Landing Plantation is a gated golf-and-marina community built in 1987 around what's locally known as "The Brick," with Intracoastal Waterway-front condominiums and townhomes roughly 3 miles inland of Ocean Isle Beach's own sand. None of these three communities is on either island; all three exist specifically because of this mainland stretch of protected water.

This corridor also holds a genuine working waterfront that has nothing to do with resort development: Varnamtown, an incorporated town (since 1988) of 603 year-round residents at the 2020 Census, sitting on the banks of the Lockwood Folly River. Its history traces to around 1860, when the Varnam family, followed by the Dixon and Galloway families, settled the area and built a community of fishermen, vessel captains, and boatbuilders that Varnamtown's own local history describes as having endured for more than 200 years -- shrimp boats still work out of Varnamtown today. That's a genuinely different flavor of "living on the water" than either island's vacation-rental-dominated housing stock: a small, year-round, working fishing town on the same waterway that the gated marina communities and the two barrier islands all connect to. Inland a bit further, the gated community of Lockwood Folly in Supply, NC sits where the Lockwood Folly River meets the ICW, offering a golf course, clubhouse, pool, tennis and pickleball courts, a community boat ramp, and a documented median sale price of roughly $595,000 as of June 2026 (up from roughly $512,750 in May 2025, per neighborhood-level home-sale tracking) -- real, current numbers for mainland waterfront-adjacent property in this corridor, distinct from either island's own price range.

Property-tax structure is one of the more concrete, practical ways this mainland corridor genuinely differs from the two islands it connects. Brunswick County's own countywide ad valorem rate is 34.20 cents ($0.3420) per $100 of assessed value for fiscal year 2025 (July 2025 through June 2026), unchanged since the county's January 1, 2023 revaluation, with the next countywide revaluation scheduled for January 1, 2027. Most of this corridor's mainland parcels -- in unincorporated Supply and Bolivia specifically -- fall outside any town's corporate limits, so they generally owe only that county rate plus a fire-district charge, rather than the additional municipal property tax that Holden Beach and Ocean Isle Beach each levy on their own island parcels. Brunswick County is also structurally unusual: rather than levying a separate fire tax the way most North Carolina counties do, it funds fire departments through per-property fire fees, a system regulated under state law (Session Law 2017-60) that caps what any department can charge; county fire-service funding documents show Bolivia's fire department receiving roughly $406,830 and Supply's receiving roughly $1,266,660 in a recent allocation. Varnamtown, as an incorporated town, is a partial exception -- it can and does levy its own municipal tax on top of the county rate, though this research did not independently pull Varnamtown's own current adopted rate from the town's own budget documents, and does not state one as confirmed fact.

Several practical facts a buyer or boater would want were not independently confirmed at a level this page treats as settled, and it does not invent them. Not confirmed this research pass: Varnamtown's own current municipal tax rate from its adopted budget (as opposed to a third-party blended-rate estimate); current slip rates or waitlist status at Seascape at Holden Plantation, Ocean Isle Marina & Yacht Club, or Brick Landing Plantation's own docks; current channel depths at Lockwood Folly Inlet or Shallotte Inlet beyond the general shoaling pattern described above; and a clean, sourced waterfront-versus-interior price premium specific to this mainland corridor as opposed to either island's oceanfront. Anyone seriously evaluating a purchase, a slip, or a move to this corridor should confirm current numbers directly with Brunswick County's Tax Office and Floodplain Management office, the specific marina or POA involved, a licensed NC insurance broker, and Brunswick County Schools rather than assuming an online figure is current.