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HomeMy WebLinkAboutNEWPORT HARBORCITY OF NEWPORT BEACH TEN YEAR MAINTENANCE DREDGING PROJECT ENVIRONMENTAL REVIEW - NOTICE OF DETERMINATION August 30, 1973 A preliminary environmental review of the proposed project for the maintenance dredging of Newport Harbor in the City of New- port Beach has been performed. The review was conducted in ac- - cordance with the requirements of the California Environmental Quality Act of 1970, the State "Guidelines for Implementation of the California Environmental Quality Act of 1970", and the City's "Policies and Procedures for Implementing the California Environmental Quality Act". As a result of the preliminary review it has been determined that; 1. The project is approved. 2. The project will not have a significant effect on the environment. 3. An Environmental Impact Report has not been prepared. A Negative Declaration has been prepared and -is attached hereto. R.E. Reed, Director Marine Safety Department RER:scc Att. • NEWPORT HARBOR • ,o w TEN YEAR MAINTENANCE DREDGING PROJECT ENVIRONMENT STATEMENT NEGATIVE DECLARATION BY CITY OF NEWPORT BEACH 1. Location: Newport Harbor is a nagivable waterway with es- . tablished U.•S. Army Corps of Engineers' Harbor tines within the City of Newport Beach. 2. Project: The work consists of maintenance dredging of sand which has sloughed (due to tidal actions, littoral,• drift, normal boating activity, etc.) from areas ad= jacent to bulkheads and from non-bulkheaded tidelands between existing project lines and bulkhead lines bayward into the Harbor. This. sand will be disposed of by three -(3) methods: a. placement back against the seawall, - b. placement landward on non-bulkheaded shores or beachesy ; c. transported by barge and dumped. into,the- Pacific Ocean within a 500 foot radius. of. Latitude 33°33'00"N,-Longitude 117°55'0'0"W. The actual maintenance dredging will be done by private contractors hired by individual property owners under ,a permit procedure agreed upon by the City and the'U.S. Any Corps of Engineers. - • • Page 2. 3. Purpose of Project: The purpose of this project is as follows: a. Raise the level of the sand adjacent to existing and future seawalls to insure proper structural stability of the seawalls. b. Increase the depth -of the water under existing and future boat slips to allow utilization of these slips and to prevent damage to the slips and moored vessels at low tide. c. Retard the growth of algae, ie. enteramorpha, and the eutrophication of the Harbor bottom. d. Rrograde existing shoreline preventing possible property damage. 4. Discussion of Environmental Impacts: a. Marine Environment:. Due to the ongoing nature of the project, assessment of the possible environmental lap; pact of the project was accomplished by reviewing en- vironmental reports prepared for similiar work else where in Newport Bay. These projects are identified, as the Coves Development, the Bayshores Marina and the Grand Canal dredging. These reports did not identify any significant en- vironmental impacts resulting from the dredging work associated with those projects. Brief mention was. made of short term localized siltation and water dis- • • Page 3. ;sy coloration. It was concluded that the limited pop- ulation of bottom dwelling organisms which would be disturbed would be restored -within •six to nine months after dredging. at is felt the same conclusions are applicable to this project. Our experiences in past maintenance dredging projects supports this conclusion. b. 'Water Quality: There will be some short term water turbidity during the dredging operations. Past ex periences in dredging has shown that the proposed hy- draulic dredging method, with the discharge spout being kept under water, when alternates 2a and 2b are used, minimizes water turbidity outside of the project area.. 5. Basis for Negative Declaration: This project has been reviewed in conjunction with Sections 15081 and 15082 of the State Guidelands. Comparison with criteria set forth in those sections indicates that the proposed project will not have a'significant environmental impact.' In addition this proposal is made with cognizance of the Federal Water Pollution Research and Sancturies Act of 1972, the Coastal Zone Management Act of 1972 and per- tinent sections of the River and Harbor Act of 1899. • CITY OF NEWIPORT BEACH CALIFORNIA MARINE SAFETY DEPARTMENT 70 Newport Pier July 17, 1973 92560 City Hall 3300 Newport Blvd, (714) 873-2110 Mr. Walter S. Boyle . Chief.Waterways Control Section U. S. Corps of Engineers P. O. Box 2711 Los Angeles, California 90053 SUBJECT: APPLICATION - 10 Year Maintenance Dredging APPLICATION The City of Newport Beach and County of Orange Harbor, Beaches and Parks District jointly requests that the Department of the Army, Los Angeles District, Corps of Engineers issue a' Blanket Maintenance Dredging Permit to the above local governmental bodies for maintenance dredging landward of the U. S. Project Lines. The subject permit if granted will be administered by the City of Newport Beach and/or County of Orange Harbors, Beaches and Parks District for maintenance dredging projects over their respective granted tidelands. DISCUSSION With the current siltation occurring in Newport Harbor, it is now recognized by both the City of Newport Beach, Marine Safety Department, and the County of Orange, Harbors, Beaches and Parks District that maintenance dredging must be an ongoing process to assure safe navigation and the protection of private property. A continuous maintenance dredging activity is necessary primarily because of two factors. These are: 1) Siltation - resultant from both the San Diego Creek run-off and numerous storm drain terminus within the harbor. 2) Beach Profile Erosion or Sluff- ing - resultant from tidal changes, normal boating activity, wave refraction off deep water bulkheads, and littoral drift of material from one zone to another. • Mr. Walter S. Boyle Page Two Based on past maintenance dredging experience (within the Harbor Lines) for both City and County Tidelines, the Marine Safety Department and Orange County Harbor District estimate approxi- mately two hundred (200) annual maintenance dredging applications. The combined annual quantity of dredgedimaterial will average approximately 20,000 cubic yards. This estimate is based on calculations obtained from Shellmaker, Inc. the only dredging company located at Newport Harbor. ' 1 The dredged material will be disposed of at 117° 55' longitude and 33° 33' latitude at a location beyond the 100 fathom line or in accordance with an approved disposal site stipulated by the Regional Water Quality Control Board and the Environmental Protection Agency. The attached drawings illustrate the zones within Newport Harbor (between the U. S. Bulkhead Lines and U. S. Project Lines and Private Waterways without Harbor Lines) where the proposed main- tenance dredging will be an on -going process administered by an implementation guideline. The maintenance dredging permit is proposed to maintain existing in use navigable waterways. The attached'Implementation Guideline' defines in greater depth the parameters of the "Blanket Dredging Permit". Sincerely, MARINE SAFETY DEPARTMENT IT X OF NEWPORT BEACH R. E. Reed, Director RER:DH:lf F z e< ti 0 0 0 t loco JC:ALE iri FEET 2000 0 72 Jca/e in Miles LAND AND ✓ErrY V/C//Y/TY SKETCH . NEWPORT 8,4Y Paced iromMap of Rea/ Es/dte, Rives & Harbors, ar thgin ee rs ea. Los Ange%>• Ca/u rnia Fi/eNs.8/5A-/. SounoOhgs are expressed in fee/ and . (Jencks dep/hs be/owmean /over /ow wafer. JYen,,a0�'T @„4}- v c. e1 1 (i%ET <!': �:. .c. c 1.3t2✓GItJ<: ..r •., J ./Se n,A. s.'."' •-' 4g 04 „es- 40r4cr-r, Oe,Q1CJoc- Co Cn<,,' f}ectia.4 C./9 770 A, Sy G, ry J✓tww.er edincia i r-• 2d A� C P 1 :XI ' fir_ .�,t,_._ __.___ Intl, _ _... SCALE IV FEET { Soundings are expressed' in ket and dencfe dep/hs he/ow mean /over /ow 4'der 5a6/LKNEAO L t/E eg/9E1W 2/NE PM ..S: i‹ -PROJECT IJIYE C-EA N ?COO • h •C i5a.ci,�cdr✓�i;.Tl.�4s7jo- Dr£vo..c:o rti�,r \ 'te_i C.:%'_. LP.J 7*' /A2' MAre../RRL S.EiNS C.PK. /2/20/'72 COEC. /2/9/ G5 . I S. 4-.IV/X. //. T. 7.5=MAX.N.W. • 5.3=M..H.N.W. 4.6 2.73= /MS.L 2C 20 � 24' P 0,1E HO.€ //C=/O' VER. /e=5, * USE 8 TO / POR THAVat-ED gear 4,?9,4r5 i*us- 4 To / 4Rouyo NcWPa zr /SL.4,cVO DUe TO H/cH 5/LT cavr it $.45EP o.v oesez.W-T/o,vs ,gV ,e G. PATT2.?SO,V Leg i Y OF NEWPORT BEACH Fiat IC 's'TCRKS DEPARTMENT DRAW NI WR DATE .5:2. /3, /952 — -- . C:.. - .eSA" c APPROVED .•• •._ . \ • WORYS DIRECTOR DRAV. .ti3 ;:O. .../4-,csi > of ' n0• 0 `iCA'_c IN FEET 1000 • Soundings are express: Ike; depths bear✓ mean /oriel- /orr ;rarer. Zano -P 8U/XNeAO LINE iPIERHEAO LINE PROJECT LINE A 1/4".4.1,..ere ✓//ifU re,' -:accL! 'eoc,,tom t:=�iYli b., /✓c. ,:.°c:.- //AZaaa O<cai cr :., C.v — ... • • • //Atli �/oe/t5 4 90 = 771.0 .2EG /2/2O/T2 eec %2/9/ GS S. 4 = MaX. 1/7, 7. 5. MA/ 14 , 5.8= MN..M.h/ a 4.6 =Mfl 2. 73 z 44. L. 0. oo_M.GG./ -2. 5 =MA& Z. p -/G e a PROF/z. E. Noe /"=/o' vkte !"=5/ CITY OF NEWPORT BEACH PUBLIC WORKS DEPARTMENT DRAWN 6. -%✓ DATE 7^/7-72 l;_ APPROVED PUBLIC WORKS DIRECTOR P E NO DRAWING NO. ,5/,.e/- RESOLUTION NO. 8030 III A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF NEWPORT BEACH REQUESTING THE U.S. ARMY CORPS OF ENGINEERS TO ISSUE AN EME - GENCY PERMIT TO ALLOW MAINTENANCE DREDGING. IN DOVER SHORES WHEREAS, the Dover Shores waterways have silted up making the operation of boats in the channels extremely dan- gerous and in some instances impossible; and WHEREAS, this situation has created a serious need to perform maintenance dredging in and around the areasoc- cupied by the pier or float installations; and WHEREAS, the Newport Beach Marine Safety Department has been advised that any dredging activities in navigable waters will require a permit from, the U. S. Army Corps of Engineers; and WHEREAS, because of the many review procedures by various Federal, State, and local agencies that must occur before a dredging permit will be issued, it may be many months before the necessary permit to dredge the Dover Shores water- ways may be obtained; and WHEREAS, the City Council finds that an emergency situation currently exists as a result of the siltation in the Dover Shores waterways which emergency must be corrected im- mediately in order to protect the health, safety, and general welfare of the citizens living in this area. NOW, THEREFORE, BE IT RESOLVED that the City Council of the City of Newport Beach hereby respectfully requests the U. S. Army Corps of Engineer to issue an interim emergency permit to allow maintenance dredging toothe original designed depths in the Dover Shores waterways. BE IT FURTHER RESOLVED that the City Council of the City of Newport Beach requests that the U. S. Army Corps of -1- •s • Engineers issue a blanket dredging permit for t.'.c existing approved waterways, landward of the Federal project lines, to be accompanied by justifying documents and P_ccedural outlines which will be provided' in a coordinated effort with tne Harbors, Beaches, and Parks District for the County.of Orange. ADOPTED this 25th day of ! June , 1973. ATTEST: ti /' City Clerk CEPTIPM. S A TRUE ANELS93RECT COPY CITY CLERK OF THE CITY OF NEWPORT/EACH JUN 2 9 '1973 DATE M ......ter-► CONDITIONAL (DREDGING PERMIT GUIDELINE • CITY OF NEWPORT BEACH MARINE SAFETY DEPARTMENT COMPENDIUM With the current siltation occurring in the Newport Harbor, it is now recognized by the local governing agencies that maintenance dredging must be an ongoing process, if navigation is to continue. The City of Newport Beach and the County of Orange, Harbors, Beaches, & Parks District if issued a conditional "Blanket Maintenance Dredging Permit" will administer same as defined in the preceding. text. To honestly administer such a per- / mit, the City and County are agreed that the subject permit should be immediately revoked by the U. S. Army Corps should the conditions stated in the following "TEXT" not be complied with. PREFACE A) The maintenance dredging permit is limited to include only those tidelands between existing project lines and bulkhead lines which are already developed for the safe navigation of boats. Also, it is limited to navigable waterways constructed upon private lands which now have piers, slips, and other floats already constructed and in use. t) This permit does not extend to any undeveloped tidelands, nor to any additional projects, within already developed navigable zones, wherein new construction would alter existing use of these navigable zones. C) The permit is presented to prevent grounding of vessels either while underway, or while moored at docks, in only those tidelands which have been approved for navigation and previously dredged for navigable use within the limits described by (A). d) Within the Newport Harbor there are approximately 1,200 privately owned piers and slips, by homeowners, and approximately 200 commercial piers and floats. The City and Harbor District anticipates approximately 200 main- tenance dredging applications (of less than 100 cubic yards each) which will. 2. • • be processed annually according to the following procedures: TEXT "The U. S. Army Corps of Engineers, Los Angeles District, conditionally authorizes the City of Newport Beach and County of Orange, Harbors, Beaches and Parks District to approve or disapprove, maintenance dredging within Newport Harbor on City and County granted tidelands respectively. APPLICATION PROCEDURE: A) 200 Cubic Yards, or Less: 1. The dredging contractor submit's a standard harbor permit applica- tion to the Newport Beach Marine Safety Department (in duplicate if County Tidelands are involved) including drawings. The complete permit applica- tion will show: a. The location of the project b. The current situation c. The amount of material to be removed d. The dredging's effect upon the design -profile within the immediate zone. e. The dredging's effect upon the stability of contiguous bulkheading. f. The disposal location of spoil, and method. g. A signed guarantee that the dredging will not occur because of any altering of existing use of the affected zone. The City Council and/or County of Orange, Harbors, Beaches and Parks District dependent on local agencies jurisdiction may then either approve commencement of work, or disapprove. If approval is granted, the permit copies will be immediately forwarded to the Los Angeles offices of the U. S. Army Corps of Engineers for their review, information, and option to inspect the opera- tion. Further, upon receipt of the permit copies, the Corps of Engineers may notify any other interested agency who may wish to inspect the project. • • 3. If, for any reason, the Corps of Engineers disapproves the project, the work will be immediately halted by the City of Newport Beach, Marine Safety Department and/or the County of Orange, Harbors, Beaches and Parks District. B) 1,500 Cubic yards, or less, on Navigable Waterways wherein Federal Harbor Lines have not been established. I 1. The dredging contractor submits a standard harbor permit applica- tion to the City of Newport Beach, Marine Safety Department, including drawings. The permit application will show: a. The location of the project. b. The current situation (including proof that the existing depth is at least 3 feet less than the design depth) c. The amount of material to be removed. d. The dredging's effect upon the design profile within the immediate zone. e. The dredging's effect upon the stability of contiguous bulk - heading. f. The disposal location of spoil. g. A signed guarantee that the dredging will not occur because of any altering of existing use of the effected zone. h. Approval by the local community association, if applicable. The City Council may then either approve, or disapprove, commencement of work after the following procedure is completed: a. Approval by the Public Works Director, Community Develop- ment Director, and Marine Safety Director, under the direct- ion of the City Manager. b. Approval by the Orange County Harbor Commission. i approval is granted, the permit copies will be immediately forwarded " 4. • • to the Los Angeles offices of the U. S. Army Corps of Engineers for their review, information, and option to inspect the operation. Further, upon receipt of the permit copies, the Corps of Engineers may notify any other interested agency who may wish to inspect the project. If, for any reason, the Corps of Engineers, disapproves the project, the work will be immed- iately halted by the City of Newport Beach Marine Safety Department. It is understood by the City of Newport Beach-4nd County of Orange Harbors, Beaches, & Parks District that this entire dredging permit system is revo- cable, at will, by the U. S. Army Corps of Engineers". NOTE: This proposal is made with cognizance of the Federal Water Pollution Control Act Amendments of 1972, the Marine Protection Research and Sanctuaries Act of 1972, the Coastal Zone Management Act of 1972, and pertaining sections of the River and Harbor Act of 1899.