EP 1165-2-1
30 Jul 99
relatively uniform in costs and a weighted percentage calculated from
the total costs, from all segments, assigned to each category.
d. Periodic Nourishment. No Federal contribution toward
maintenance of a shore protection project is authorized. However, the
Act of 1956 (Public Law 84-826) provides that Federal participation
may be made toward periodic beach nourishment when it is found to
comprise a more suitable and economical remedial measure for shore
protection than retaining structures such as groins. Periodic
nourishment (if not specifically authorized on another basis) is to be
considered "construction" for funding and cost-sharing purposes.
Corps participation in periodic beach nourishment (sand replacement)
is limited to the period specified in authorizing documents. Section
934 of WRDA 1986 allows extension of the authorized period to 50 years
from the date of initiation of construction, if it is determined that,
based on current evaluation guidelines and policies, the existing
project is economically justified. Preauthorization reports will
generally recommend Federal assistance in periodic nourishment for the
economic life of the project. Nourishment costs will be shared in the
same percentages as initial project installation costs were shared.
(1) Replacement of Dunes. Prior to WRDA 1986, many shore
protection projects were formulated with two separate purposes: BEC
and HSDR. Different cost sharing and local cooperation requirements
applied to these two purposes. Beach berms were generally cost shared
as erosion protection measures. The Federal Government participated
in periodic nourishment. Protective dunes, on the other hand, were
cost shared as HSDR features based on their use for storm surge and
wave damage protection. The local sponsor was responsible for all
OMRR&R, including placement of additional sand to restore the dune
section. WRDA 1986 established the single unified purpose of HSDR.
Accordingly, where protective dunes are included as part of the HSDR
project, the Corps will recommend authorization for continued Federal
participation in periodic nourishment of the protective dune. The
rationale for this policy is that the protective dune, along with the
protective beach, is part of the sacrificial storm damage reduction
system where loss of material from the system is anticipated. The
replacement of dune vegetation following periodic nourishment and
replacement of dune cross-overs, however, is a non-Federal
responsibility. This policy does not extend to HSDR levees which do
not function as sacrificial systems, or to hard features (e.g.,
groins, revetments, seawalls). Also the non-Federal sponsor has sole
responsibility for maintenance, including maintenance of dune
vegetation, sand fencing, and grading and reshaping the dune to the
design section with available material.
(2) Recognition of Costs in Non-Federal Sponsor Financing
Plan. The continuing requirement for periodic nourishment for beach
fill projects must be reflected in the schedule of estimated Federal
and non-Federal expenditures. This schedule is furnished to the non-
Federal sponsor to prepare the sponsor's financing plan and statement
of financial capability. The assessment of the non-Federal sponsor's
financial capability must include a demonstration of the sponsor's
capability to meet its share of periodic nourishment costs. The
sponsor must also understand that, while an "average" periodic
nourishment cycle is estimated, the need for periodic nourishment is
most often associated with replacement of erosive losses that occur
during storm periods. Therefore, the local sponsor should demonstrate
the financial capability to respond quickly to periodic nourishment
requirements. This may involve establishing a contingency fund or
emergency response account.
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