The Army Corps of Engineers says it will be expensive to fix beach erosion problems along Flagler County's shoreline.
A new report estimates it will cost $43.4 million over 50 years to create a 10-foot seaward extension of existing dune and berm.
Army Corps project manager Jason Harrah told the Daytona Beach News-Journal the plan faces hurdles as it heads to Congress for reviews.
Officials say appropriation is slated for 2016, with construction beginning in 2017 at the earliest.
The plan calls for construction in phases. The initial construction would be followed by four "periodic renourishments" over 50 years.
Flagler County engineer Faith Alkhatib says design work could begin later in the summer if the county and potential partners are able to "front fund" the work.