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Army Corps of Engineers, Update Report for Maine, June 30, 2012
CAMDEN HARBOR, CAMDEN (1st Congressional District)
"The Camden Board of Selectmen requested the New England District
Conservation of Maine's Biggest Bay, 2004 - Present. Use search bar or archives list on right
DEP's
2. EXISTING SCENIC, AESTHETIC, RECREATIONAL OR NAVIGATIONAL USES:

Maine Dredge Team Meeting April 2025 agenda/outline
April 7, 2025
(See
·
Projects completed 2024-2025
o
Isles of Shoals breakwater repairs – New
Hampshire/Maine
§ Repair
damage to 3 breakwaters
§ Construction
began in June 2023, wrapped in November 2024
§ 11,000
tons of new armor stone
§ Final
cost around $10 million
o
Kennebec River (USN support-maintenance
dredging)
§ Hoping
to dredge every 2 years
§ 40-60k
cy material by hopper dredge; disposal at alternative Jack Knife Ledge Disposal
Area
§ Completed
in January 2025
§ No
take of endangered species occurred
§ USN
will be looking to expand the dredging footprint for the 2028 dredge adjacent
to Bath Iron Works – still within the navigation channel
·
Sand suitable for placement in-river
·
Carlton Bridge to Doubling Point
·
USN coordinating NEPA and state reviews
o
May need additional consultation and/or permit
updates to account for changes in footprint, increased dredging frequency, and use
of alternate disposal area
o
Josias River, Ogunquit maintenance dredging
§ Mechanically
dredged 10,300 cy of material; disposal at Isles of Shoals North Disposal Site
§ Completed
in March
§ Had to
leave some areas untouched due to presence of hard material (ledge)
§ Final
survey on ehydro
website
§ Last
dredged 1994
·
Scheduled for award in 2025
o
Narraguagus River Maintenance Dredging
§ 2024
contract solicitation cancelled – only one bidder, over budget
§ Re-advertised
March 17, 2025 hoping to open bid April 17, 2025
§ Looking
to do full FMP 150k cy of material; disposal at Douglas Isle Disposal Site
o
Bar Harbor breakwater repairs
§ 2
repair areas between Bald Porcupine Island and Porcupine Dry Ledge and beyond
Dry Ledge
§ WQC/CZM
submitted for review in March
§ Goal
to advertise contract in September 2025
§ Historical
munitions testing in the area – USACE Baltimore District conducted a
determination for probability of UXOs and found there would be low probability
o
Section 111 Shore Damage Mitigation Project –
Camp Ellis, Saco
§ Phase
I – 750 linear foot stone spur jetty and beach fill (~73k CY)
§ Phase
2 – sand nourishment
§ Authorizations
under RHA CAP Section 111 at $12.5 million, WRDA 2007 to $27 million, WRDA 2022
to $45 million
§ WQC/CZM
app for Phase I to be submitted spring 2025
§ Potential
to use sand from Scarborough Beach depending on timing of projects – dredging
not to impede navigability; looked for offshore borrow sources; potentially trucking
material from upland quarry
· Scheduled for 2026+
o
Isle au Haut Thoroughfare
§ In early
planning phase
§ Mechanical
dredging ~ 2,400 cy – mostly sand,
gravel, cobble – suitable for open water disposal; Flake Island disposal site
under consideration
§ Current
cost estimate ~$3M
§ Working
with fishermen to ensure material is placed beneficially for habitat and
fishing grounds
§ WQC
and CZM applications anticipa
ted in summer 2025
§ 2026
construction
o
Searsport Harbor maintenance dredging
§ Mechanical
dredging of ~30k cy of material; not suitable for open water – potential to go
in CAD cell – 2 sites under investigation; preferred CAD site outside channel
near Mack Point
·
Legacy contamination with mercury from
Holtrachem detected
§ WQC
and CZM applications anticipated in summer 2025
o
Union River Maintenance Dredging
§ Dredged
in 2006-07 – encountered very fine wood pulp coming from upstream mills;
material had been disposed at Tupper Ledge
·
Wood pulp does not want to stay in one place
§ Looking
to re-align channel entrance – limits the amount of future material to be
dredged; anchorage still needs to be dredged – material not suitable for
aquatic disposal; identifying potential upland sites
§ USACE
conducting due diligence; coordinating with USCG
§ Looking
to reach decision point for path forward spring 2025
§ **Question
for the group: has anyone seen successful aquatic disposal of wood pulp?
o
Georges River
§ Working
to identify potential beneficial use placement sites, open water placement
sites
§ ~24-25k
cy material to go to 10 feet; town wants to go to 16 feet – increases dredge
material to ~80k cy
§ Undertaking
draft EA – late summer/early fall for public review and WQC/CZM for project to
be conducted fall 2026 (assuming funding from congress)
§ Has
gone through suitability determination to 10 feet – mostly silty with some fine
grain sands; needs analysis to 16 feet – scheduled for this sampling season
·
Identified potential need in marshes close to
Georges River – not sure how to get the material there
·
Any upland beneficial use needs to consider DEP
criteria which may be slightly different from USACE
· Marine Construction Industry Day on May 5
virtual event from 9am-12pm
o
Share with marine construction industry
o
Email nae-pn-nav@usace.army.mil to
register and use the subject line “Marine Industry Day”
Portland
CAD cell project
·
First CAD cell in the state of Maine –
constructed January-March 2025
·
4 acre hole
·
Material from 3 projects dredged this season
placed in the CAD cell – Maine State Pier, Ocean Gateway, Turner’s Island
(interim cap)
·
~40 total projects in Portland Harbor to use
cell
·
Monitoring to determine if there should be
changes to CAD cell management plan
enEnd