HomeMy WebLinkAboutOceana Dredged Material Management Area 06102025Oceana Dredged Material
Management Area (DMMA)
Follow-up City Council Briefing
Toni Utterback, P.E. | June 10, 2025
Why we are here
•This is a follow-up presentation on the proposed Dredged Material
Management Area (DMMA) at 560 Oceana Boulevard to address concerns
raised during the City Council briefing held on May 13, 2025.
•City Council is set to vote on whether to approve a Modification of
Conditions for the existing Conditional Use Permit (CUP) to establish a new
DMMA at this location on June 17, 2025.
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Agenda
•Stormwater Management
•Land Use
•Alternative Dredged Material Disposal Sites
•Cost Impacts to Neighborhood Dredging Special Service Districts (SSDs)
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Stormwater Management
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How the area drains
•560 Oceana
Boulevard is located
in:
•Chesapeake Bay
watershed
•Linkhorn Bay
Drainage Basin
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How the
area drains
•No stormwater infrastructure on-site
•The area is divided between the Linkhorn Bay Drainage Basin and the Oceanfront Drainage Basin
•Linkhorn Bay Drainage Basin Drains to the Chesapeake Bay
•Oceanfront Drainage Basin Drains to the Atlantic Ocean 6
560 Oceana Blvd
Surface Elevations – 560 Oceana Boulevard
•Stormwater Runoff
drains from West to
East
•Groundwater and
rainfall control the
lake’s elevation
•Normal Pool
elevation of the lake
is 13.9 feet
•Majority of runoff
stays on site
•Modeling Shows
100-yr storm
exceeds capacity of
lake 7
Existing Flooding 10-year Storm
•10-year storm is
6.8 inches of
rain in 24 hours
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560 Oceana Blvd
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560 Oceana Blvd
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560 Oceana Blvd
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Proposed Design
•A berm will be
constructed to 18 ft
(NAVD 88) to
provide storage for
the 100-year, 24-
hour storm event
•DMMA will not
increase
stormwater runoff
since the
imperviousness of
the site is being
reduced
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Proposed DMMA at
560 Oceana Boulevard
•Does NOT function as a stormwater
management pond
•There are no pipes that convey
stormwater to or from the site.
•Will NOT cause flooding
•By constructing a berm, we are increasing
the stormwater storage capacity on the
site.
•Will NOT increase Stormwater Runoff
•By filling the lake with dredged material, it
will become pervious, allowing rainwater
to be absorbed into the ground.
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Land Use
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Land Use
•City Council approved the
acquisition of the property by an
ordinance dated January 19, 2016.
•The ordinance specified that the
acquisition was "to provide an area
for the deposit of dredged spoils."
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Alternative Dredged Material
Disposal Sites
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Alternative Site Options
•There are no other City-owned DMMA sites available to receive non-beach
quality dredged material.
•Privately owned disposal sites are available, but are located over a 20-mile
one-way travel distance from most planned dredging projects.
•Potential Private Disposal Sites*
•Bonney Bright – Virginia Beach
•Clearfield MMG, Inc. – Chesapeake
•Dominion Recycling Center, LLC – Chesapeake
*These sites have not been evaluated to determine their capacity to accept dredged material 18
Cost Impacts to Neighborhood Dredging
Special Service Districts (SSDs)
•Tax Rate for six Neighborhood Dredging SSDs will increase if Dredged
Material is hauled to a private disposal site
•New Rate assumes $140/cubic yard to use private disposal sites
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Percent ChangeChangeNew RateCurrent RateNeighborhood
259 %47.6 ¢66.0 ¢18.4 ¢Old Donation
79 %37.3 ¢84.5 ¢47.2 ¢Bayville Creek
22 %13.0 ¢71.0 ¢58.0 ¢Schilling Point
119 %19.0 ¢35.0 ¢16.0 ¢Gills Cove
350 %154.0 ¢198.0 ¢44.0 ¢Hurds Cove
122 %35.4 ¢64.4 ¢29.0 ¢Chesopeian Colony
THANK YOU
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