Green Cove Springs seawall and bulkhead planning
Green Cove Springs is the Clay County seat on the St. Johns River, near the Shands Bridge and the mouth of Black Creek, which set a record crest in Irma.
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Get to know your waterfront
Green Cove Springs is a city on the west bank of the St. Johns River in Clay County, with about 8.6 square miles of land and 2.7 square miles of water. The mouth of Black Creek lies to the north. The river’s daily tide range near the Shands Bridge is about 1 foot, but storms have pushed the river more than 3.5 feet above normal high water.
2024 Census Gazetteer: Florida places; USGS GNIS · St. Johns River upriver station datums (8720503, 8720625, 8720774, 8720767, 8720296, 8720333, 8720409, 8720406) · NWPS gauge GCEF1 – St. Johns River at Shands Bridge
River walls and creek walls
The NWS gauge at the Shands Bridge lists crests of 3.66 feet above normal high water in Matthew and 3.52 feet in Nicole, with minor flooding from 1.5 feet. Black Creek near Middleburg reached a record 27.89 feet in Irma, and local reporting described more than 300 residents rescued. Creek-side walls face fast-rising fresh water as well as river surge. NWPS gauge GCEF1 – St. Johns River at Shands Bridge · NWPS gauge MDLF1 – North Fork Black Creek near Middleburg · Gov. Scott Tours Middleburg Flooding
Upstream of the Shands Bridge, average salinity is under 0.5 ppt. Gribble is unlikely, but Sphaeroma tolerates tidal-fresh water, so timber still needs inspection. Continuous stream discharge, salinity, and associated data collected in the lower St. Johns River and its tributaries, Florida, 2021 (OFR 2022-1111) · Wood-Boring Marine and Estuarine Animals in Florida (SGEB-15)
What could the work cost?
Flood-prone creek lots may need higher walls or different shoreline approaches; ask for options, not just a like-for-like price.
Published prices are attributed planning context from contractors’ own pages, not a measured Jacksonville average or this website’s quote. Ranges differ about five-fold between publishers; your written, itemized scope decides the real number.
Compare quotes and plan a budget →Find the relevant permits and records
| Starting point | What to resolve | Prepare and look up |
|---|---|---|
City of Green Cove Springs | Building permits inside city limits through the city’s SmartGov portal. | City Hall, 321 Walnut Street; 904-297-7500. |
Florida DEP Northeast District (Jacksonville) | State environmental resource permit or exemption, and state-lands consent for work at or below the high-water line. DEP handles single-family docks and shore protection not tied to a larger development. | Survey with the existing wall face and high-water line, the proposed alignment and photos. DEP Northeast District: 904-256-1700. |
U.S. Army Corps of Engineers, Jacksonville District | Federal authorization for work in tidal and navigable waters, often verified by DEP through the state programmatic general permit or covered by a nationwide permit. | Ask DEP whether its review includes federal verification for your scope, or which nationwide permit applies. |
A Green Cove Springs checklist
Prepare these before you request quotes.
Confirm city or county
Inside city limits, use the city’s SmartGov permitting; outside, Clay County.
Check flood insurance
Green Cove Springs is not on FEMA’s current CRS list, so no community discount applies.
Use the right gauge
Shands Bridge for the river; Black Creek near Middleburg for creek flooding.
NWPS gauge GCEF1 – St. Johns River at Shands Bridge · NWPS gauge MDLF1 – North Fork Black Creek near Middleburg
Plan your Green Cove Springs seawall project
Tell us where your Green Cove Springs property is, what you have noticed and what you want to decide. We will help you plan the next step.
Local guidance. A clearer plan for your waterfront.
Green Cove Springs project questions
How high did Black Creek get in Irma?
The NWS gauge near Middleburg lists a record crest of 27.89 feet on September 11, 2017, above the prior 1919 record.
Keep planning
Nearby waterfront guides
Fleming Island & Doctors Lake, Orange Park, Fruit Cove & Julington Creek
Show sourcesHide sources
- 2024 Census Gazetteer: Florida places; USGS GNISSource reviewed 2026-10-24
- St. Johns River upriver station datums (8720503, 8720625, 8720774, 8720767, 8720296, 8720333, 8720409, 8720406)Source reviewed 2026-10-24
- NWPS gauge GCEF1 – St. Johns River at Shands BridgeSource reviewed 2026-10-24
- NWPS gauge MDLF1 – North Fork Black Creek near MiddleburgSource reviewed 2026-10-24
- Gov. Scott Tours Middleburg FloodingSource reviewed 2026-10-24
- Continuous stream discharge, salinity, and associated data collected in the lower St. Johns River and its tributaries, Florida, 2021 (OFR 2022-1111)Source reviewed 2026-10-24
- Wood-Boring Marine and Estuarine Animals in Florida (SGEB-15)Source reviewed 2026-10-24
- City of Green Cove Springs home pageSource reviewed 2026-10-24
- Northeast DistrictSource reviewed 2026-10-24
- Operating Agreements ERP Permitting: DEP District Offices and the Water Management District OfficesSource reviewed 2026-10-24
- Operating Agreement Concerning Regulation Under Part IV, Ch. 373, F.S., Between SJRWMD and DEP (eff. 07/01/07)Source reviewed 2026-10-24
- Federal Permits and Coordination Agreements Between DEP, WMDs, and the U.S. Army Corps of EngineersSource reviewed 2026-10-24
- SPGP VI – 1. Shoreline Stabilization, Activity descriptionSource reviewed 2026-10-24
- Reissuance and Modification of Nationwide Permits (91 FR 768, Jan. 8, 2026)Source reviewed 2026-10-24
- CRS Eligible Communities, October 1, 2026 Effective DateSource reviewed 2026-10-24