01 / Dune Crossovers
AnswerDune crossover design, permitting, and construction for barrier island properties. FDEP CCCL coordination. Built to county spec on first submission.
The path from house to beach should feel permanent. We build it that way.
21
Years on the lagoon
100%
Self-performed
25-yr
Typical design life
8
Private communities
Dunecrossoversthatfailcountyspecificationarerequiredtoberemovedattheowner'sexpense.Non-compliantstairriserheights,inadequatehandrailsystems,andinsufficientclearanceabovethedunecrestforsandpassagearethecommonfailurepoints.
FDEP-permitted · Engineered to ASCE 7 · FL RG291103858
FDEP-permitted
Every project runs the full FDEP, USACE, and Indian River County permit pack — filed, tracked, and closed by us.
Engineered to ASCE 7
Stamped structural design against the lagoon's tide, surge, and salt — not a generic catalog spec.
Self-performed
One licensed Florida marine contractor (RG291103858), one accountable crew — no subcontractor hand-offs.
Selected work
John's Island 
John's Island
01 / What you get
Dune Crossovers on the Indian River Lagoon.
· 01 — The challenge
What a non-compliant or deteriorated dune crossover costs.
Dune crossovers that fail county specification are required to be removed at the owner's expense. Non-compliant stair riser heights, inadequate handrail systems, and insufficient clearance above the dune crest for sand passage are the common failure points. Structural deterioration in pressure-treated crossovers appears as stringer rot at the ground contact points — typically 8–12 years on untreated wood in direct sand contact.
· 02 — Our approach
How we design and build dune crossovers.
Crossover design begins with the property survey. Keith locates the Coastal Construction Control Line (CCCL) — the regulatory boundary that governs everything seaward of it — and confirms the crossover route and county-required clearance specifications. Material selection is determined by community aesthetic standards, maintenance preference, and budget.
· 03 — The lagoon
The Indian River Lagoon barrier islands — what they change about crossover work.
Barrier island properties — Orchid Island, John's Island beachfront — sit seaward of the Coastal Construction Control Line. The CCCL is an invisible regulatory boundary on every property. Any structure seaward of it is subject to stricter setback and design review under FDEP Coastal Construction rules.
02 / Process
4 phases, in order.
01CCCL location verification and design1–2 weeks | 02HOA / ARB review (barrier island communities)2–6 weeks | 03FDEP CCCL permit and county permit review30–45 days concurrent | 04Construction1–3 weeks |
03 / Materials
What we specify, and why.
Composite decking is specified for most new crossover installations — it eliminates the stringer rot issue that limits pressure-treated wood crossovers to 8–12 years. Composite systems on aluminum or hot-dipped galvanized steel framing are specified where the community aesthetic requires a natural finish with composite performance. Handrail systems are engineered to IRC compliance standards — load, height, and balusting interval are non-negotiable county requirements, not design preferences.
04 / Investment
Dune crossover installation in Vero Beach ranges from $18,000 (standard pressure-treated, 40–60 feet) to $55,000 (ADA-accessible composite with full ramp grade, 60–80 feet). A standard 60-foot composite crossover with rails runs $28,000–$42,000 fully permitted. ADA-compliant designs with 1:12 ramp grade add $5,000–$12,000. Primary variables: length, material selection, ADA compliance requirements, and handrail specification.
05 / Warranty
[KEITH: confirm warranty terms for dune crossover construction.]
06 / Communities served
07 / FAQ
Frequently asked questions.
Let's start with a walk of the property.
Site visits with Keith are by appointment — a one-hour walk of the waterfront, then a written estimate within ten business days.