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Task Order No. 11/DSR No. 3 09/01/2019 r�� 72D . TASK ORDER NOr..11..FOR DAMAGE SURVEY REPORT(DSR) FORTSEDIMENTREMOVAL SERVICES BETWEEN MONROE COUNTY AND ADVENTURE ENVIRONMENTAL, INC. FOR MONROE COUNTY HURRICANE IRMA EWP -SEDIMENT REMOVAL In accordance with the Agreement for Marine Debris and Sediment Removal Services as a result of Hurricane Irma made and entered on the 18th day of July, 2018, between Monroe County hereinafter referred to as the "County" and Adventure Environmental, Inc. hereinafter referred to as "Contractor". All terms and conditions of the referenced Agreement for Marine Sediment Removal Services apply to the Task Order, unless the Task Order modifies an Article of the Agreement of which will be specifically referenced in this Task Order and the modification shall be precisely described. This Task Order is effective on the 1st Day of:Septerriber 2019 and will terminate no later than the 30th Day of September 2019. In accordance with Article II Scope of Basic Services, Paragraph 2.1, the Scope of this Task Order is as follows: The scope of services will include Sediment Removal and Disposal (Load and Haul) of organic, silt and sand from the USDA-NRCS eligible canals within the DSR#3 area from Big_Frieey ' See Exhibit A-1 for work plan and location maps. In accordance with Article VII, Paragraph 7.1 Contract Sum, the Contract Sum of this Task Order is as follows: The Contractor shall be paid based on rates negotiated and agreed upon and shown in the Pricing Schedule in Attachment B of the agreement. The estimated quantities and equipment allocation for the DSR are based upon review of aerial maps, bathymetric surveys, and representative site visits. See Exhibit B-1 for estimated resource allocation and September estimate for DSR#3. The County shall pay the Contractor a not to exceed amount of Two Hundred and Ninety-Eight thousand and Five Hundred and zero cents`:($298,500.0 Page 1 of 2 MONROE COUNTY HURRICANE IRMA EWP-SEDIMENT REMOVAL September 151,2019 `�\1N11111111///�''' IN WITN ```��d,�l ch party caused the Task Order#11 to be executed by its duly authors ecTdli . (Seal) E. w o 10 SEAL rn CONTRACTOR: Attest:;gyp • G 9,� '_ ADVENTUR NV ONMENTAL, INC. 6- ° Y 8,.° .9 ems/ •�'O••• • By: a A 0/431 9 By: r( II LJ G Date / Date /� l I'l( J-Vn(g V( , Of;Tv, V 62 Title Prince/ le WOOD ENVIRONMENT AND INFRASTRUCTURE SOLUTIONS,INC. 4 9-4-2019 m'1-OE COU ► A RNEY By: •PrOVED T.; Date PEORO .MERCADO ASSISTANT C.LINTY ATTO' .: 1�s MONROE COUNTY DIRECTOR SUSTAINABILITY AND PROJECTS By. /4- /9 honda aag Dat MONROE COUNTY COUNTY ADMINISTRATOR By: 9•lcf'•j1)10 Roman Gastesi Date Page 2 of 2 MONROE COUNTY HURRICANE IRMA EWP-SEDIMENT REMOVAL September lst,2019 EXHIBIT A-1 Work Plan and Location Maps ,9 )�, BOARD OF COUNTY COMMISSIONERS County of Monroe 1 Mayor Sylvia Murphy,District 5 Mayor Pro Tern Danny Kolhage,District 1 � Commissioner Michelle Coldiron,District 2 The Florida Keys Commissioner David Rice,District 4 Commissioner Heather Carruthers,District 3 Proposed Work Plan for the Monroe County Hurricane Irma EWP - Canal Sediment Removal Prepared for: USDA/NRCS 2614 NW 43rd Street Gainesville, FL 32606 Prepared by: Wood Environment & Infrastructure Solutions, Inc. 5845 NW 158t' Street Miami Lakes, Florida 33014 Grant Agreement Award No.: NR184209XXXXCO27 I. INTRODUCTION Provide all labor, supervision, engineering, materials, supplies, equipment, tools, transportation, surveying, layout, and protection for the proper execution and completion of all the work in accordance with the Contract Documents. The Work shall include but not be limited to that shown on the plans and detailed in the quality assurance plan and technical specifications. All work shall be conducted in accordance with all applicable local, state, and federal standards and regulations. II. SCOPE OF WORK The Scope of Work for the canal sediment removal activities located in DSR#3 (Big Pine Key), DSR#5A (Islamorada), and DSR#5B (Marathon) consists of mechanical dredging to remove the sediment accumulation relating to Hurricane Irma. The utilization of the mechanical system will result in the collection of a slurry from the canal bottom comprised of sediment and saltwater. The vessel-based dredge excavates and places the material in a dedicated dewatering area. The contractor will utilize a passive dewatering system to handle the dredged material. The dewatering system will be located either in the canal on the barge or within the upland staging area adjacent to the canal. Once dewatered the material will be transported to an approved upland disposal location dependent on the chemical characteristics of the material. The Contractor must install temporary construction fencing, consisting of jersey barriers and construction fencing or equivalent, around the staging area(s) and remove the fencing upon completion of the project. The Contractor shall return all staging area property to its original condition or better which includes re-grading and re- sodding of disturbed areas. The County will obtain the USACE, FDEP, FKNMS, and County permits. The Contractor will be responsible to obtain any other necessary permits not identified by the Engineer. Use of private homeowner land may require a Temporary Use approval. The Contractor is required to submit a Construction Methodology Plan (CMP) to Monroe County, including a Maintenance of Traffic (MOT) Plan (including a truck hauling plan) for approval prior to initiation of construction. Given the dense layout of the communities surrounding the project area, the Contractor shall be cognizant of the logistical limitations of dewatering the dredged material and transporting fill material in the space provided in the designated staging areas. Additionally, the Contractor shall be aware of the necessity to take care during the removal of the sediment so as to not damage the boat lifts present in the canal or any other privately-owned property. Damage caused by contractor to privately owned property will be a liability of the Contractor not the engineer or the County. Florida-EWP Page 2 of 6 April 2019 The Contractor shall be cognizant that the information provided regarding surface elevations on the construction documents is an approximate estimate, and that even though the sediment thickness values are a direct observation; no guarantee is made to the accuracy of the data. Therefore, the contractor shall obtain a pre-bathymetric survey to compensate for any potential errors or lack of precision in the presented sediment volume and surface elevation information. The sequence of Major Activities are as follows: 1) Relocation of recreational vessels (if needed) 2) Inspection of the canal for the presence of T&E species 3) Establishment of the dewatering staging area 4) Mobilization of the mechanical dredge to the project site at high tide 5) Installation of the turbidity barrier at the mouth of the canal 6) Mechanical dredging of sedimentation 7) Discharging of low turbidity effluent back into the canal 8) Disposal of dewatered dredge material 9) Sponsor monitoring firm will confirm that the contractor has dredged to the prescribed elevations as shown on the plans and specifications 10)Allow settlement of canal water to ensure turbidity at canal mouth does not exceed 0 NTUs above background. 11)Demobilization of dredge 12)Restoration of the dewatering staging area 13)Remove erosion and sediment control measures. III. MATERIAL TO BE REMOVED The material to be removed is generally comprised of sand and silt. The Contractor shall complete physical and chemical analysis on the material prior to construction commencement to determine the most efficient and economical methodology for the removal and disposal of the material. The Contractor and Engineer will communicate on the quantity and location of the sediment to be analyzed to ensure it complies with all local, state and federal guidelines. IV. ARTIFICIAL OBSTRUCTIONS The Contractor shall identify all existing utilities on site before construction commencement to ensure no impacts. Additionally, the contractor shall identify and segregate all artificial obstructions within the canals that may impair the dredge equipment such as vegetative or construction and demolition debris. V. QUANTITY OF MATERIAL The Contractor shall independently estimate the sediment quantities to removed based on the pre-bathymetric survey, plans and the Contractor's independent site investigation of existing conditions. An initial estimate based on limited bathymetric data is shown in the Florida-EWP Page 3 of 6 April 2019 plans for each canal, however this figure should be used as guidance only; actual, estimated volume determination will be the responsibility of the Contractor. Prior to commencement of the sediment removal, the Contractor shall engage a licensed surveyor in the State of Florida to provide a 10-foot by 10-foot bathymetric survey grid of the project area. This will be classified as the pre-bathymetric survey data obtained by the contractor's surveyor. The Engineer will review this data and provide the Contractor with a proposed elevation for dredging limits based on the pre-Irma canal bottom elevations for the project area. The pre-Irma canal bottom elevations will be used as the controlling elevation for the specified area approved for sediment removal The Contractor shall take progress soundings or sweepings to verify compliance with plans, specifications and work plan. The Sponsor will use this data to verify that the Contractor does not dig below the pre-Irma canal bottom elevation. Contractor is responsible for quality control. Sponsor is responsible for quality assurance. On completion of the sediment removal, the Contractor shall engage a licensed surveyor in the State of Florida to provide a 10-foot by 10-foot bathymetric survey grid of the project area using the same locations of the pre-bathymetric survey. This survey data will be classified as the post-bathymetric survey data obtained by the contractor's surveyor. The post-bathymetric survey shall be compared to the pre- bathymetric survey to demonstrate that sediment has been dredged to the pre-Irma canal bottom elevations as shown on the plans. The Contractor is allowed a +/- 6-inches dredging tolerance from the pre-Irma canal bottom elevations. As part of the Quality Assurance process, the quantity of volume removed will be compared to the pre vs. post bathymetric survey analysis and the calculated field volume by the monitor utilizing the capacity of the trucks/roll offs and percentage full of sediment. The volumetric analysis calculation between the pre versus post bathymetric survey, completed by the Sponsor, will be used as the method of measurement and payment. VI. ENVIRONMENTAL PROTECTION REQUIREMENTS The Contractor shall provide and maintain during the life of the contract, all necessary environmental protective measures. The Contractor will comply with Federal, State, and local regulations pertaining to water, air, and noise pollution. VII. DREDGE EQUIPMENT The Contractor shall utilize mechanical dredge equipment to remove the sediment. The Contractor shall be aware that removal rate may be constrained by the sediment dewatering rate and area and shall implement the appropriate equipment accordingly. Florida-EWP Page 4 of 6 April 2019 The Contractor shall maintain the plant, scows, combings, barges, pipelines, and associated equipment to meet the requirements of the work. Immediately repair leaks or breaks along pipelines. Immediately remove dredged material discharged in wetlands or other areas outside of the identified project area due to leaks and breaks. Removal of material shall bring the impacted area back to original condition and shall be conducted at Contractor's expense. Operations shall be immediately halted if a pipeline breaks or a leak occurs. Except where authorized in the plans and specifications, dredge pipelines or open ditches shall not block roads or Rights of Way (ROW) or otherwise interfere with access unless approved. VIII. DEWATERING OF EXCAVATED MATERIAL The Contractor shall implement a passive dewatering system. The passive dewatering system is dependent on the material consistency. The Contractor shall provide the Sponsor a dewatering plan for review and approval. It shall be noted that the final hauling weight of each load (load = sediment + truck + trailer) is not to exceed Standard Highway Loading rates or a gross weight of 11,000 ton/axle, whichever is less. The effluent from the dewatering system will be discharged back into the canal. The Contractor is required to operate the dredging and dewatering operations such that mandated permitted turbidity limits are not exceeded. The State turbidity requirements are 0 NTU increase above background levels in the Florida Outstanding Waters outside the canal mouth. The Contractor will make any required adjustments to the operations to ensure compliance with these limits. The monitor will measure the turbidity throughout the project to ensure compliance with permits using a Hach 2100Q portable turbidity monitor, or equivalent. IX. DISPOSAL OF EXCAVATED MATERIAL The Contractor shall provide for safe and legal transportation and disposal of dredged materials according to plans, specifications and quality assurance plan. The deposit of dredged materials in unauthorized places is forbidden. Spoil material inadvertently spilled on roads,public ROWs and private property shall be promptly removed and the area restored by the Contractor. The dredged material may not be disposed of under an unrestricted use scenario. Therefore, the Contractor shall provide their proposed method of disposal, dependent on the chemical analysis for the dredged material to Engineer and County for approval. The tentative final disposal locations are as follows: Landfill: South Dade Landfill 23707 SW 97th Ave Homestead,FL 33032 Florida-EWP Page 5 of 6 April 2019 Beneficial Reuse: Florida Keys Country Club 4000 Sombrero Blvd. Marathon,Florida 33050-0969 X. MEASUREMENT Surveys prior to Work 1. Prior to commencement of the sediment removal, the Contractor shall engage a licensed surveyor in the State of Florida to provide a 10-foot by 10-foot bathymetric survey grid of the project area. Surveys during Progress of Work 1. Preliminary checks of design depth will be determined by soundings or sweepings taken behind the dredge and barge as the work progresses. The Contractor shall take progress soundings or sweepings to verify compliance with plans, specifications and quality assurance plan requirements. Final Examination and Acceptance: 2. On completion of the sediment removal, the Contractor shall engage a licensed surveyor in the State of Florida to provide a 10-foot by 10-foot bathymetric survey grid of the project area. The post-bathymetric survey shall be compared to the pre- bathymetric survey to demonstrate that sediment has been dredged to the pre-Irma canal bottom elevations as shown on the plans. To assure excavation to the minimum depths, the Contractor is allowed a +/- 6-inches dredging tolerance from the pre-Irma canal bottom elevations so as to not impact hard bottom. Florida-EWP Page 6 of 6 April 2019 I 1 2 4 3 II 4 i S 1 • E WI11,1,,, Ng lt— ` GENERAL SCOPE OF SITE WORK IE wood. FOR USDA NRCS EWP GRANT NO. NR184209XXXXCO27 • SEDIMENT REMOVAL POST HURRICANE IRMA FOR s � ENVIRONMENT 6 � INFRASTRUCTURE unoNs,INC P. 10 RESIDENTIAL CANALS IN BIG PINE KEY, CITY OF MARATHON `�►,v 5845 NNLA C58H STRREEE, MIAMAND VILLAGE OF ISLAMORADA 11- TEL (X S)BYB-SSBB PROECT LOCATIONS MONROE COUNTY, FLORIDA D ATTENTION IS 0ECTED To ME FACT THAT THESE REDNS MAY AUK BEEN CHANGED IN SizE BY REPN0OUCrgN. THIS MUST BE CONSIDERED MEN OBTAINING SOILED DATA. SHEET INDEX COKRRNG SPFT!FICA1KNt THE PROJECT CErh-GPMENI C . 1. SEDIMENT REMOVAL COVER SHEET m EU PDX I MO 2 MONROE COUNTY PUBUG WORKS AURYL GATED SEPTEMBER'WU: FLORIDA DEPARTMENT OF ENNROTRIORAL PRDTEC00N(MEP): 2. SEDIMENT REMOVAL — CANAL #148 — DSR5A FLORIDA KEYS NATIONAL MARINE SANCTUARY ON.) 3. SEDIMENT REMOVAL — CANAL #157— DSR5A Ili �wTED STATES Harr coRPs a R (IISACE): PLIES. THE EVENT OF A COVFUCT,THEENGINEE MOSTS RESTRCTM1E AP 4. SEDIMENT REMOVAL — CANAL #257 —DSR5B 5. SEDIMENT REMOVAL — CANAL #268 —DSR5B m CANAL LOCATIONS TABLE 6. SEDIMENT REMOVAL — CANAL #269 —DSR5B 11 7. SEDIMENT REMOVAL — CANAL #282 —DSR3 Q ® CANAL It LATITUDE LONGITUDE 8. SEDIMENT REMOVAL - CANAL #293 -DSR3 _ m 148 LOWER MATECUMBE KEY 24.869326• -80.704148' PROJECT: • 9. SEDIMENT REMOVAL - CANAL #297 —DSR3 m MONROE COUNTY C 10. SEDIMENT REMOVAL - CANAL #299 -DSR3 1FGFNG 157 LOWER MATECUMBE KEY 24,852399 80.734650 HURRICANE IRMA - 11. SEDIMENT REMOVAL - CANAL #300 -DSR3 257 MARATHON 24.697964' -81.079708' EWP-PHASE III En CANAL FOOTPRINTS SEDIMENT REMOVAL 12. SEDIMENT REMOVAL DETAIL SHEET BIG PINE KEY (DSR#3) 268 MARATHON 24.691252• -131.079741• LOCATION MAP 269 MARATHON 24.691880' -81.081228' SPONSOR 282 BIG PINE KEY 24.684035' -81.355360• • ' ® 293 BIG PINE KEY 24.674409' -81.342066• A ; 1, 297 BIG PINE KEY 24.673093• -81.340948' � ; ✓` ,,• 299 BIG PINE KEY 24,672419' -81.340753' • 300 BIG PINE KEY 24.671803' -81.339915E REVISIONS NO. MR K APPROV[D ' \ SUNSHINE 811 • owl CALL BEFORE YOU DIG m 1-800-638-4097 . ISLAMORADA (DSR#5A) MARATHON (DSR#513) I. CAL 1-800-838-4091 TW0 FULL BUSINESS OATS(BUT NOT MORE TON NNE) - — GAecrORE DIGGING TO FIND OUT WHERE BORED FAILI5ES(ELECTRIC,GAS, mA LOCATION MAP LOCATION MAP TELECOMEIUNDONS.GABLE WATER.SEWER)N CAT E LOCATED. , En. GOC 2. RAT NE REQUIRED DARE FOR THE UTILITIES oN SITE TO BE LOCATED ONO MARKED OE1At81 DY: CRC ANT WITH COLOR-CODED P .RAGS DR SICOMMATH ES AND COAT THE SIE INS - BEEN LOCATED. CHECKED IN: RN - 3. RESPECT MO PROTECT THE MARKS WRING DE PROJECT.If WRNS IRE APPAQ4D Br: RN DESTROYED,REQUEST A REED LOCATE TICNEi. SAE: - TO/01/2018 4. DIG SAFELY.USING EXTREME 0AUDON WHEN DIGGRND mom 24 INCHES ON ETHER SHEET TITLE: APRI L 2019 SIDE OF THE MARNS TO AVOID NITBNc TIE BURIED UITUTY UNES. A SEDIMENT REMOVAL COVER SHEET /SHEET NUMEIER: REV. I 1 OF 12 .I I 2 I 3 I 4 I 5 I D I SHEET OF SHEETS 1 r Ir I wood. ENVIRONMENT& { INFRASTRUCTURE SOLUTIONS.INC. :... 5845 NW 158TH STREET MIAMI LAKES,FL 33014 ! I .=d "ef A. TEL (305)826-5588 . N. . LEGEND y''� G. 1PROPOSED SEDIMENT REMOVAL AREA rs'.-j POTENTIAL UPLAND STAGING AREAS __,/ `_ MONROE COUNTY PARCELS. 2010 I I % \ eoao0 FLOATING TURBIDITY BARRIER 1 iviLaett. PROJECT y MONROE COUNTY Y.. §1E 0r r `O[NE<>•4, &Rtww.NW e.DS:73 F8F I ,:: HURRICANE IRMA - C EWP-PHASE III SEDIMENT REMOVAL Sediment Volume Sediment Removal Acummulation Post SPONSOR: Canal# DSR# Canal Area(Sq ft.) Area(Sq ft.) Irma(CY) n — 282 BIG PINE KEY 3 84795.03 10985.9 610.33 ' • REVISIONS NO. DATE BY IAPPROVED -.0, NOTES DESIGNED BY GWC -�- I)MEAN LOW LOW WATER(NLLW) ELEVATIONS REFERENCED FROM DRAWN BY. Gwc -Bo, APPROVED SEDIMENT REMOVAL AREA NON TIDE STATION 8724201 IFY:FNO CHECKED BY: RH s- FROM STATION 5*50 TO 7.25 PRE HURRICANE IRMA APPROVED BY: RH 2)ELEVATIONS SHOWN HEREON ME RELATIVE TO THE NORTH MMERICAN VERTICAL DATUM OF 1988(NAVD 88) CANAL BOTTOM DATE: 10�01/2018 POST HURRICANE IRMA SHEET TITLE. 3)THE PROFILE IS JUST A REPRESENTATION OF THE IMPACTS CANAL BOTTOM TO THE CANAL SYSTEM,IN SOME INSTANCES NOT ALL 5+-0.00 FINGER CANALS ME REPRESENTED WITH A CROSS SECTION SEDIMENT REMOVAL A _ HURRICANE IRMA HOWEVER THE IMPACTS ARE TYPICAL WITHIN EACH SEGMENT ��I:.,.'u;iI:I:.I CANAL 282 — u- i sl I r.n AND ARE PART OF THE EVALUATION TO BE RESTORED. �' SEDIMENT REMOVAL AREA I/ ROSS—SECTION DSR3 4)CONTRACTOR SHALL ENSURE TURBIDITY OUTSIDE CANAL IS 0 ,w„,^� MLLW ELEVATION (-1.27 NTU ABOVE BACKGROUND AT ALL TIMES DURING FT NAV088) SMEEi NUMBER: REV. M CONSTRUCTION ACTIVITY. SHEET 5)NO CORAL MANGROVE SEAGRASS OR HARD BOTTOM 7 OF 12 IMPACTS ARE PROPOSED FOR THE SEDIMENT REMOVAL SHEET OF SHEETS ACTRARES. 1 I 2 I 3 I 4 t S I e I I 1 2 I 3 1 4 1 5 1 e 1 ) ' �'�+I►��► I •fc 'IC) +III _L-J. 4111r. a E �i�41t='`'"tip CANAL #293 - DSR#3 - BIG PINE KEY4 t'.�.. wood. _Atir L'Ah 'Da :°. T y; T 10.1 _ ENVIRONMENT k fffff 3 INFRASTRUCTURE I .y. 1 AS 1 +nliimibi� saunoes,INC 5845 NW 158TH STREET ).: I I I .~ I _ +.( MIAMI LAKES,FL 33014 TEL. (305)826-5588 l' or mINIKAAIY I ` 42.,WJ3 >''�I" amFST_8 u ., (' it. 1 r A (t. ������ can "'r t. m q,; I I '1 I I PROPOSED SEDIMENT REMOVAL AREA I APPROVED' SEDIMENT REMOVAL AREA I- I �� FROM STATION 3+50 T❑ 7+27 a c s 1 I :nr4 '. 14 POTENTIAL UPLAND STAGING AREAS 0 L _,,K �R11;14. —— 4 � w b 1 .114 ��♦♦ — MONROE COUNTY PARCELS.2010 "'"f'^'f pyyy nue ^ I. 1 It J6t�"R' -- ar�000 FLOATING TURBIDITY BARRIER 0 a A v�Q� y�--rT - -- PROJECT MONROE COUNTY 0s -F ,,, :- HURRICANE IRMA - Sediment Volume EWP-PHASE III Sediment Removal Acummulation Post SEDIMENT REMOVAL Canal a DSR a Canal Area(Sq ft.) Area(Sq ft.) Irma(CY) 293 BIG PINE KEY 3 39597.96 19403.1 2874.53 . SPONSOR. _i_ 0.0 _1,, l FGFND ' p PRE HURRICANE IRMA '. � CANAL BOTTOM -a: POST HURRICANE IRMA REVISIONS CANAL BOTTOM N.J. DATE In _LAwAOVED 9 -40. HURRICANE IRMA 11 1 11=.ur.NIl= ETEEM SEDIMENT REMOVQ AREA -s" IId11-II-II�IIAIf ll 1 i 2 Ilif" �IlilfII II 11�11-11*If- A,: d1 �MLLW ELEVATION (-1.27 n FT NAw88) d�� � �n 714411,47411111114�(fn �7�ii=Tr _n NDTES: 11all=lf B=II�If 11=0 =11 _ II 1)MEAN LOW LOW WATER NUR) tl 11 II 1�1 8 I I�11 Ilgn�ll II II-'ll - ELEVATIONS REFERENCED FROM -e� ov, eimII r bk NOM TIDE STATION 8724201 we 1411=n %uAn I=non. -.III'--::Iwia-n ne1= ,,, �d I I�II II I if 0 II°0�11 IInyT 2)ELEVATIONS SHOWN HEREON ARE RELATIVE TO THE DESIGNED BY GWC If �11 11 II I �If NORTH AMERICAN VERTICAL DATUM OF 1988(NAYD DRAWN BY __ GWC . -A I IdII 11 I II f 11 11�11. 1 88) CHECKED Bl': RN .. -18., �nq bn In n�11:14 .1 n n RH 3)THE PROFILE IS JUST A REPRESENTAnoN OF THE APPROVED�' 'II." Fug FIVIAAV. IMPACTS TO THE CANAL SYSTEM,IN SOME �QATE: 10�01�2018� N. 1 =11=T10n. INSTANCES NOT ALL FINGER CANALS ARE -'" / 1II�11-11- REPRESENTED WITH A CROSS SECTION HOWEVER SHEET TITLE: - I� Ip.I��11� APPROVED SEDIMENT REMOVAL AREA MIE IMPACTS ARE TYPICAL WITHIN EACH SEGMENT SEDIMENT REMOVAL A -13."�11 1 1 11. IIT FROM STATION 3450 TO 7487 AND IRE PAXPART OF THE EVALUATION TO BE 4- � I CANAL #293 - 4)CONTRACTOR SHALL ENSURE TURBIDITY DSR3 14 T.Oro r.,,oo ®5.r,m 6.�,m �.,,ao 1' oo OUTSIDE CANAL IS 0 NM ABOVE BACKGROUND AT i ' T" R E S S—SECTION ALL TIMES DURING CONSTRUCTION ACTIVITY. SHEET NUMBER: REVI 5)NO CORAL,MANGROVE,SFAGRASS,OR HARD BOTTOM IMPACTS ARE PROPOSED FOR THE 8 OF 12 SEDNENT REMOVAL ALOMTIES. .SHEET OF SHEETS I I 2 f 3 I 4 I 5 I 0 I I I 2 t 3 I 4 I 5 I o I I ; 1 , 1rea T wood. • .f',I u;'LI% UShk3 -c:G I' NE KEY ri ENVIRONMENT k INFRASTRUCTURE — P — mi.,SOLUTIONS,INC. 5845 NW 158TF STREET _ ,. �\ MII LAKES,FLJ3014 '� —..'✓ TEl t 3051 826- 58ft ��. / •�j/ J f_ _._ _ // V D / I 2. J' ._ T 4 L (. 1 IFSEND >i' -- '- i � I 'I PROPOSED SEDIMENT REMOVAL AREA p I. � )POTENTIAL UPLAND STAGING AREAS � "'MONROE COUNTY PARCELS, 2010 /' T• moo..FLOATING TURBIDITY BARRIER __T �—__.__r_ y r —T— L —yA — _T T j ay�I II I MONROE COUNTY C I v . i I 1 „ _ HURRICANE IRMA - EWP-PHASE III Sediment Volume SEDIMENT REMOVAL Sediment Removal Acummulation Post Canal B DSR N Canal Area(Sq ft.) Area(Sq ft.) Irma(CY) SP ONSOP_ 297 BIG PINE KEY 3 19962.11 4151.4 153.76 -Io 20 I FOFNDj' PRE HURRICANE IRMA CANAL BOTTOM POST HURRICANE IRMA REVISIONS _� CANAL BOTTOM MN 6Y - - HURRICANE IRMA .S I SEDIMENT REMOVAL AREA , ti MLLW ELEVATION(-1.27 I'. -6 FT NAVDBB) ,- NOTES: T I)MEAN LOW LOW WATER(MLLW)ELEVATIONS REFERENCED FR0A ROM TIDE STATION 8724201 -0' 2)ELEVATIONS SHOWN HEREON ARE RELATIVE TO THE DRA�DRAWNCB BY: OWC NAPPROVED SEDIMENT REMOVAL AREA NORTH AMERICN VERTICAL DATUM OF 1988 NAVE/88) D.CHECKEDOK BY: RH _yo FRDN STATION 3.30 IT 1.42 _ 3)THE PROFILE IS JUST A REPRESENTATION OF THE APPROVED BY: RH 1 s-ren IMPACTS 10 THE CANAL SYSTEM,IN SOME INSTANCES ♦DATE. 0!01%2.118 NOT ALL FINGER CANALS ARE REPRESENTED WITH A -100 CROSS SECTION HOWEVER THE IMPACTS ARE TYPICAL WITHIN EACH SEGMENT AND ARE PART OF THE SHEET TI P,I. A A_ EVALUATOR TO BE RESTORED. SEDIMENT REMOVAL 114+0.00 .. oo 4.1.00 4)CONTRACTOR SHALL ENSURE TURBIDITY OUTSIDE CANAL CANAL #297 - IS 0 NIT)ABOVE BACKGROUND AT ALL TIMES DURING DSR3 CONSTRUCTION ACTIVITYA "1 e . R O S S-SECTION 5)NO CORAL.MNIGROVE,SEA A MSS,OR HARD -- � I"" SHEET NUMBER: REV. A BOTTOM IMPACTS ARE PROPOSED FOR THE SEDIMENT REMOVAL ACTMTIES. 9 OF 12 SHEET OF SHEETS t E 2 I 3 1 4 I 5 I I I t 1 2 1 3 1 4 1 S E 6 I ' W r ;, s 4.y ptwe "'4 Avenues,CANAL 6299 DSR#3 BIG PINE KEY NTr ° 1I I I --� �� fit -�,- . I 1 I - �� wood. Art r: EN VIRONMENT k L'f tilt+ A A v: ;..6 1- .:1"_ ,' I I .;- % INFRASIRUCNRE y., I..•"4' .. :, SOLUTIONS,INC. . If .�RTRF7 t'`°'" ' ;'� ''NEAlb I 1 •.: SBlS NW 158TH STREET • 46 - 4 qT ANAMI LAKES,FL 33014 ,�ji„ � — TEL (305)626-5588 lit W! i D I I I rj. •W I . ..,. �Y APPROVED SEDIMENT REMOVAL AREA ? I .' I g if ,.. '+ © •.�: FROM STATION 4+50 TO 6+20 I I '@ ' 1 � 1 I ' ' I 1FCEN I PROPOSED SEDIMENT REMOVAL AREA +t•• t yl vL% ,,' ,y "+" 40.........—J— --�-— :.:J POTENTIAL UPLAND STAGING AREAS W. AYA,..,. k - - ———— ,w_ " �__�MONROE COUNTY PARCELS, 2010 -— - 'A VFnue y g a0000 FLOATING TURBIDITY BARRIERZO y N. / -i 1 - — — — _ t I I — ——T —— PP OJECT Ir H I I ♦ Ilf I MONROE COUNTY s, ° I 4.I I HURRICANE IRMA - C EWP-PHASE 111 Sediment Volume SEDIMENT REMOVAL Sediment Removal Acummulation Post Canal It DSR 8 Canal Area(Sq ft.) Area(Sq ft.) Irma(CY) SPONSOR 299 BIG PINE KEY 3 24435.77 5356.8 396.80 n. LEGEND --1 ^1 0.00 -.— PRE HURRICANE IRMA , - CANAL BOTTOM - 100- _ POST HURRICANE IRMA REVISIONS CANAL BOTTOM NO OATS : 9Y +APPROVED 200J HURRICANE IRMA I" I SEDIMENT REMOVAL AREA - II=Tyy— II�1JLLI-III V, MLLW ELEVATION (-1.27 —I I J —1 11E1 I C—I H I H I I— NOTES FT NAVD88) -A —I—1 =L-1 I 11 EI I I=I I F 1 I—I I=1 I'IIIII-111I—j FI I�i I=11 1)MEAN LOW LOW WATER(MLLW) ll1=I—lF�I'11+1+E11—JJ1—I ag STATIONKK8724201 REFERENCED FROM N0M DE -s. Ill_1)I 1._Et�L1lL 1 IL,j11 y 2)ELEVATIONS SHOWN HEREON ARE DESIGNED 8, GWC _6,,p_ - RELATIVE TO THE NORTH AMERKIN DRAWN BY. GWC VERTICAL DANM OF 198E1(NAND 88) CHECKED BY RH D- 3)THE PROFILE IS JUST A REPRESENTATION APPROVED BY. PH -T..- APPROVED SEDIMENT REMOVAL AREA - OF THE IMPACTS TO THE CANAL SYSTER DATE. 10!DI 2018 _ FROM STATION 4.50 TO 6.20 IN SOME INSTANCES NOT ALL FINGER 1i.00- - CANALS ARE REPRESENTED WITH A SHEET TITLE: CROSS SECTION HOWEVER THE IMPACTS - 4 ARE TOPICAL WITHIN EACH SEGMENT AND SEDIMENT REMOVAL A - -90o 1 ARE PART OF THE EVALUATION TO BE A.50.00 s.d0,00 6.010.00 6.20.00 RESTORED. CANAL #299 — 4)CONTRACTOR SHALL ENSURE DSR3 e e MOSS—SECTION TURBIDABOVEITY OUTSIDE BACKGROUNDC AATALALLSSMES DURING SHEET NURSER REV M ' I CONSTRUCTOR ACTMtt. Ir.n 10 OF 121 5)NO CORK.MANGROVE.SEAGRASS.OR HARD BOTTOM MPACTS ARE PROPOSED FOR SHEET OF SHEETS THE SEGMENT REMOVAL ACTMRES. 1 1 2 I 3 I 4 I 5 I 6 I • 1 I 2 1 3 1 4 L S 1 e 1 a > __ ..� -__ _ i Feel _— 0 wood. I ; I 1 1 ENVIRONMENT& I Y INFRASTRUCTURE SOLUTIONS,INC. 5845 NW 158TH STREET MIAMI LAKES,FL 33014 • TEL (1O51 826-5598 a. . . .. ,.,... .„ L. i , . 2 „,„„ . . 1 . ,, , ,, , . ..,. .. ,,,,,,.... 1 ......, ., , . ,. ,, , ,._,,,, ., 1, a 1,,,'''— 4 it' • I De i Il''',$,' ''''',, ',';''''S"ift 4 , ', 11 i # APPRnVr SF(1TMFNT RFMT1VAI ARFA r) #krk,�. X I ,,.,I CANAL #300 - DSR#3 - BIG PINE KEY , IFIEND I I '?' I I //iJ PROPOSED SEDIMENT REMOVAL AREA L_-- ---_L- __ _L -__L - ___ -7T. ,. .POTENTIAL UPLAND STAGING AREAS E__]MONROE COUNTY PARCELS, L V Av n ue I) 0#440% ( tp- I� ^moo FLOATING TURBIDITY BARRIER 2010 TliI. R — 1 _ '' —i.- *t`v _ '� .., _. _ PROJECT: MONROE COUNTY 1 I .+.. s O C 4ece HURRICANE IRMA - EWP-PHASE III Sediment Volume SEDIMENT REMOVAL Sediment Removal Acummulatlon Post Canal# DSR# Canal Area(Sq ft.) Area(Sq ft.) Irma(CY) SPONSOR: 30081G PINE KEY 3 22435.75 3507.73 649.58 0 G; I FGFND r, -10 PRE HURRICANE IRMA f1-- CANAL BOTTOM �iti [[[ -zo POST HURRICANE IRMA CANAL BOTTOM III REVSION a. �'I'.1 MIDlIl(SEDIMIENTEREMOVAL AREA NO. OM S!APPROVED 8 -, ,w".".." MLLW ELEVATION (-1.27 FT NAVD88) NOTES: 1)LEAN LOW LOW WATER(MLLW) ELEVATIONS REFERENCED FROM y NOM DOE STATION 8724201 -Al rl l'� 2)ELEVATIONS SHOWN HEREON ARE RELATIVE TO THE NORTH A ERICAN _ -1'0 \ l VERTICAL DATUM OF 1988(NAVD 88) /DESIGNED BY: GWC 1 \'. / DRAWN BY: GWC -80 \1/ 3)THE PROFILE IS JUST A REPRESENTATION CHECKED BY: RH OF DE IMPACTS TO THE CANAL SYSTEM. APPROVED e., RH IN SOME INSTANCES NOT ALL FINGER ATE: 10/01�2018 CANALS ARE REPRESENTED WITH A CROSS / -9Ub APPROVED SEDIMENT REMOVAL AREA SECTION HOWEVER THE IMPACTS ARE FROM STATION 4+00 TO 4+75 TYPICAL WITHIN EACH SEGMENT AND ARE SHEET TITLE: PART OF THE EVALUATION TO BE A oo RESTORED. SEDIMENT REMOVAL - 4)CONTRACTOR SHALL ENSURE CANAL #300 — TURBIDITY OUTSIDE CANAL IS O NTU DSR3 A o. Oo A. oo ABOVE BACKGROUND AT ALL TIMES DURING CONSTRUCTION ACTIVITY. SHEET \EET NUMBER. 1 i I,- R O S S-SECTION 5)NO CORAL,MANGROVE.SEAGRASS,OR HARD BOTTOM IMPACTS ARE PROPOSED FOR 11 OF 1- . THE SEDIMENT REMOVAL ACDMTES. sSNEET OF SHEETS 1 1 2 I 5 1 4 I 5 I 0 I • 1 1 2 1 3 , 4 1 5 1 6 E / wood. EXISTING SEAWALL EXISTING SEAWALL EITHER CONCRETE EITHER CONCRETE ENVIRONMENT& OR EARTHEN OR EARTHEN INFRASTRUCTURE SOLUTIONS,INC. 5845 NW 158TH STREET MIAMI LAKES,FL 33014 TEL: (305)826-5588 D MEAN LOW WATER ELEVATION III-1-I I I I_I I-I I POSTFCHURRICANEIRMA GRADE III-ICI-�I 11�-1-�� OF CANALL BOTTOM M _� IJ TL-111 HURRICANE IRMA PRE HURRICANE IRMA GRADE SEDIMENTATION IMPACTS OF CANAL BOTTOM BEFORE CONSTRUCTION ♦ PROJECT: MONROE COUNTY HURRICANE IRMA - EWP-PHASE III SEDIMENT REMOVAL EXISTING SEAWALL EXISTING SEAWALL SPONSOR: EITHER CONCRETE EITHER CONCRETE OR EARTHEN OR EARTHEN r. REVISIONS N0. DATE BY APPROVED 8 MEAN LOW WATER ELEVATION PRE HURRICANE IRMA GRADE OF CANAL BOTTOM DESIGNED 8Y: GWC AFTER CONSTRUCTION DRAWN BY: GWC CHECKED BY: RH APPROVED BY: RH DATE: 10/01/2018 SHEET TITLE: SEDIMENT REMOVAL A DETAIL SHEET NAME OF REACH:FLORIDA KEYS CANALS ♦ _ - SHEET NUMBER: REV.B1 12 OF 12 %SHEET OF SHEETS 1 1 2 1 3 1 4 1 5 1 6 1 EXHIBIT B-1 Estimated resource allocation and 30 day estimate for DSR#3 MONROE COUNTY CANAL DEBRIS REMOVAL & DREDGING DSR: 3 09/01/2019-09/30/2019 TASK ASSIGNMENT REQUEST CANALS ANTICIPIATED FOR SERVICE: 282 # DESCRIPTION UNIT UNIT RATE EST. MONTHLY TOTAL QUANTITY 0 o 1 MOBILIZATION LS $30,000.00 `/ 0 $0.00 002 NON—HYRDAULIC Cy $150. 0`0' 300 $45,000.00 v SEDIMENT REMOVAL 003 TRANSPORT / CY $45.00 300 $13,500.00 ✓ NO ARSENIC✓ 004 TIPPING FEE N/A N/A N/A $50,000.00 005 TURBIDITY BARRIER LF $100.00 600 $60, 000.00 / 006 UPLAND DEWATERING DAY $2000.00 20 x 3 $120,000.00 SITE 60 1 bV SURVEYS AND LAB 007 WORK N/A N/A N/A $10,000.00 TOTAL $298,500.00v