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Task Order No. 08/DSR No. 5B 06/13/2019 • , t MEMORANDUM OFFICE OF THE COUNTY ATTORNEY 1111 12thStreet, Suite 408, Key West, FL 33040 Phone (305) 292-3470/Fax (305) 292-3516 TO: Pam Hancock Deputy Clerk FROM: Abra Campo Executive Administrator DATE: June 19, 2019 SUBJECT: BOCC Meeting 7/18/18; Approved Agenda Item D2 (4357) Ao��� • -!'� b/Z� D. HURRICANE IRMA RECOVERY—Page 5 d D2 SUSTAINABILITY: Approval to enter into a contract with the#1 ranked vendor, Adventure Environmental, Inc., in an amount not to exceed $35 Million, for removal of marine debris created by Hurricane Irma from canals in unincorporated Monroe County, City of Marathon and Village of Islamorada; also, authority to negotiate and enter into a contract with the next highest vendor(s), in rank order, if necessary. Enclosed: One (1) fully executed of each Task Order listed below for BOCC records/distribution. Task Order#8-DSR 5A Task Order#8-DSR 5B Task Order#9-DSR 5B ,, * .4 „ � i -- ,--it,,,, , ,- i 'l1R'r `7 qi t a xr . — ,,‘ ,.,„ ,,,,,,,,..„ . .,,,- - „. ,...,,_10 .„ v 4,,,o, --,.. y...%-,...0 , -Akre'Jr' Lie b[ 4 f)3.ft.01.? . .itk ' . , 1 o 'au RECEIVED To: Monica Rodriguez, CAD #1 From: Rhonda Haag JUN 1 2019 Date: June 12, 2019 MONROE COUNTY ATTORNEY µ l Attached please find the NRCS Marine Debris Task Orders 8 and 9 for April and May from the marine debris vendor AEI. k .. These are being processed after the fact as AEI was late in submitting them. Note the task orders authorize work only in Marathon and Islamorada. There was no work performed by. AEI in April and May for the County. - `b Please have Qoman's r•Ios g e review and cign the task 0 Forward them with this memo to Abra Campo, so she f [ F can give them to Cynthia Hall to review and stamp upon - M .`. ; , ,.::i - Cynthia's return from the FAC conference. E do {F„' 3. The originals then need to be sent to Pam Hancock in -` ,a the Clerk's office, with an electronic copy sent to me e � (don't forget this part). et x Y Y_,.,- 4 % Thank you jam' . s.„ wa K �r •f t v - t } ' - -• k x Recipient Name T: Your Name W: Other recipients . TASK ORDER NO.8 FOR DAMAGE SURVEY REPORT(DSR) NO. 5B FOR SEDIMENT REMOVAL 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 i19t Day of-April-20191and will terminate no later than the `�30"'_Day_of_:Ap[iui2�019� 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#5B area fromCity off ;Marathons 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 April estimate for DSR#5B. The County shall pay the Contractor a not to exceed amount of Six Hundred and Eighty thousand and zero cents:($�8Q,QO0 O):1 Page 1 of 2 MONROE COUNTY HURRICANE IRMA EWP-SEDIMENT REMOVAL April Is' 2019 I �►'• '} a; f OF,each party caused the Task Order#8 to be executed by its duly ,y "9 • - ° 1L E CONTRACTOR: ADVENTURE ENVIRONMENTAL, INC. 91 /if/ 5i10 7y By: 1,1A-?,fair9 66:). Date Title Print f me'l Tit 's WOOD ENVIRONMENT AND INFRASTRUCTURE SOLUTIONS,INC. By: r Date CITY OF MARATHON DEPUTY CITY MANAGER By: vr2 Geor a Garre D e MONROE COUNTY DIRECT/)R SUSTAI ABILITY AND PROJECTS By: litik" (414 q Rh. da Ha-g Date MONROE COUNTY COUNTY AD ISTRATOR MONROE COUNTY ATTORNEY / APP,�AOVED S ft B . (P/ l /9 Date: 1 6 —l7 ^a 19 Roman Gaste a Page 2 of 2 MONROE COUNTY HURRICANE IRMA EWP-SEDIMENT REMOVAL April 16' 2019 EXHIBIT A-1 Work PIan and Location Maps BOARD OF COUNTY COMMISSIONERS County of Monroe fit."- Mayor Sylvia Murphy,District 5 Mayor Pro Tem Danny Kolhage,District 1 The Florida Kcys Commissioner Michelle Coldiron,District 2 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 158th 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 Iocated 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 I. 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 1 I 2 I 3 I 4 I S I 6 I . ` GENERAL SCOPE OF SITE WORK wood. FOR USDA NRCS EWP GRANT NO. NR184209XXXXCO27 ... ....... SEDIMENT REMOVAL POST HURRICANE IRMA FOR -. ® -- INFRASTRUCTURE SOLUTIONS, INC. 10 RESIDENTIAL CANALS IN BIG PINE KEY, CITY OF MARATHON' IABAMI"AK'ES TFL STREET T . 13051 826-5588 AND VILLAGE OF ISLAMORADA PROJECT LOCATIONS — MONROE COUNTY, FLORIDA D ATTENTION IS DIRECTED TO THE FACT THAT THESE PLANS MAY HAVE BEEN CHANGED IN BY REPRODUCTION. THIS MUST BE CONSIDERED WHEN OBTAINING SCALED DATA. SHEET INDEX POVERNING SPFCI IRHT10NS; 1, SEDIMENT REMOVAL COVER SHEET THE PROJECT1AND O MONROE NODE: �r OF PART 1 2 MONROE COUNTY PUBLIC WORKS MANUAL DATED SEPTEMBER 1983: 2. SEDIMENT REMOVAL - CANAL #148 - DSR5A "T"oo FLORIDA DEPARTMENT OF ENVIRONMENTAL PROTECTION(FDEP); FLORIDA KEYS NATIONAL MARINE SANCTUARY(FINKS) 3. SEDIMENT REMOVAL - CANAL #157- DSR5A • UNITED STATES ARMY CORPS OF ENGINEERS(USAGE): IN THE EVENT OF A CONFLICT.THE MOST RESTRICTIVE APPLIES. - 4. SEDIMENT REMOVAL - CANAL #257 -DSR5B ti ... 5. SEDIMENT REMOVAL - CANAL #268 -DSR5B MED 6. SEDIMENT REMOVAL - CANAL #269 -DSR5B CANAL LOCATIONS TABLE 7. SEDIMENT REMOVAL - CANAL #282 -DSR3 CANAL # LATITUDE LONGITUDE e 8. SEDIMENT REMOVAL - CANAL #293 -DSR3 60- 148 LOWER MATECUMBE KEY 24.869326' —80.704148• 9. SEDIMENT REMOVAL - CANAL #297 -DSR3 , - f'" MONROE COUNTY c 10. SEDIMENT REMOVAL - CANAL #299 -DSR3 Eacia 157 LOWER MATECUMBE KEY 24.852399' 80.734650° HURRICANE IRMA - 11. SEDIMENT REMOVAL - CANAL #300 -DSR3 257 MARATHON 24.697964• —81.079708 DIMEVV -PHASE III 12. SEDIMENT REMOVAL DETAIL SHEET CANAL FOOTPRINTS SEDIMENT REMOVAL BIG PINE KEY (DSR#3) 268 MARATHON 24.691252' —81.079741• LOCATION MAP 269 MARATHON 24.691880• —81.081228' SPONSCI- 282 BIG PINE KEY 24.684035' —81.355360' 1L; 293 BIG PINE KEY 24.674409° —81,342066297 BIG PINE KEY 24.673093' —81.3409480 299 BIG PINE KEY 24.672419' —81.340753 300 BIG PINE KEY 24.671803' —81.339915' REVISIONS r:; DATE PI >MROVED B SUNSHINE 811 BEN CALL BEFORE YOU DIG r ® `"" "° i® 1-800-638-4097 ISLAMORADA (DSR#5A) MARATHON (DSR#5B) I CALL I-800-638-4097 TWO FULL BUSINESS DAYS(BUT NOT MORE THAN ME) BEFORE DIGGING TO FIND OUT WHERE BURIED FACILITIES(ELECTRIC.GAS. - LOCATION MAP LOCATION MAP TELECOMMUNICATIONS.CABLE WATER,SEWER)ARE LOCATED. DESIGNED BY: GWC 2. WAIT THE REQUIRED TIME FOR THE UTILRIES ON SITE TO BE LOCATED AND MARKED DRAWN BY: TWO WITH COLOR-CODED PAINT.FLAGS OR STAKES MID CONFIRM THAT THE SITE HAS BEEN LOCATED. CHECKED 6Y. RH APPROVED BY RH 3. RESPECT AND PROTECT THE MARKS DURING THE PROJECT,IF MARKS ARE nor: DESTROYED,REQUEST A NEW LOCATE TICKET. - 4. DIG SAFELY.USING EXTREME CAUTION WHEN DIGGING WITHIN 24 INCHES ON EITHER AP R I L 2019 SIDE OF THE MARKS TO AVOID HITTING THE BURIED UTIUTY LINES. A SEDIMENT REMOVAL COVER SHEET SHEET NUMBER: . 1 OF 12 SHEET OF SHEETS 1 I 2 I 3 I 4 I 5 I 6 I 1 I- 2 I 3 1 4 l 5 i 8 I s.rp �y -Ai 7 f�y �+.,1311113 YlV+F �+ 4 /Ac. r Lvai•�, '',.{ 1 ..P i, '4fi *, !'r w. ,';.,:::,',"-If.,,,.,.,',.;''' r'� I , . I . , . I'•+ 6, . T IA1 it ,�yy j E ;. „ —•--(l 1a , CAI 'n 17 ' ly>wp �,.. .,. ,,,,,,, ,,, :. �'� a. wood. d. 111° __� rr +it,l'i fi i50RASTRU INC 48 d • d .4r1 ,�"*�_ SEAS NW 158TH S 3, 64' tict., i • 1 MIAMI LAKES, FL 33 ' ` y V • Y • 1 .,� d TEL: (305)826 55 - * lel ':COMITO Gov. ,.-1-:,,, d .b s V w t. f f ,yam W _ �r f'. ii , A� 1 ' 1m « CANAL #257 - DSR#5B - MARATHON wr r.rr K 1Y22 77 _ x .0 •'Ili �) a 6 .J 1i I-4_' ,1 I fi ! 0,0 ,-± �? ,d ,. t 3* ,..1` C Kati sY :?a >re^M C ,,-WIR ' l iv lit )FGFND b C 0 A.111111 7Z7(PROPOSED SEDIMENT REMOVAL AREA 1 11?�I i �: ',.4'JeJi POTENTIAL UPLAND STAGING AREAS Cs ,I G w :__:MONROE COUNTY PARCELS, 2010 411E�� - o FLOATING TURBIDITY BARRIER A . �s;9., R•.... 4. I 47` ��°' APPROVED SEDIMENT REMOVAL AREA A,_ 4` � . ",, FROM STATION 0+00 TO 1+25 . MONROE 2018DigitalGlobe®CNES(2058)DistributonArbusO5O2018HERE MONROECOUNTY C �� 1 HURRICANE IRMA - EWP-PHASE III Sediment Volume SEDIMENT REMOVAL Sediment Removal Acummulation Post Canal# DSR# Canal Area(Sq ft.) Area(Sq ft.) Irma(CY) SFONs'' 257 MARATHON 5B 363606.38 6990.93 258.92 ,;, -LociI I I I LEGEND t,ti...L PRE HURRICANE IRMA - CANAL BOTTOM -2.0 POST HURRICANE IRMA REVISION. CANAL BOTTOM ,o, DATE BY B - -s.00- _ ,,,.n,, HURRICANE IRMA SEDIMENT REMOVAL AREA - APPROVED SEDIMENT REMOVAL AREA ,vim MLLW ELEVATION (-2.04 - -a,00- FROM STATION 0+00 TO 1+25 _ FT NAVD88) NOTES: -5.0 - 1)MEAN LOW LOW WATER(MLLW)ELEVATIONS REFERENCED FROM NOAA TIDE STATION 8723962— DESIGNED B'r. SHY AWN C 0- -6.00- �I\:— —I'I—_{ 2)AM RCANNS SHOWN VERTICAL DATUM OFON A1988 E RELATIVE (NAVD 68)HE NORTH CYECK BY: G RH _ CHECKED BY. -J Li,=I I I—III—III—I i - APPROVED BY. RH --1:CT-III—III—I I- 3)THE PROFILE IS JUST A REPRESENTATION OF THE IMPACTS DATE. 10/01/2018 -7.00- �,Y:1,L TO THE CANAL SYSTEM,IN SOME INSTANCES NOT ALL 0-FANFINGER CANALS ARE REPRESENTED WITH A CROSS SHEET TITLE SECTION HOWEVER THE IMPACTS ARE TYPICAL WITHIN EACH 0 upSEGMENT AND ARE PART OF THE EVALUATION TO BE SEDIMENT REMOVAL A I 50 I Feet B o•o1oo I 1 1+06.00 1+25.00 RESTORED. CANAL #257 - o- I I I 4)CONTRACTOR SHALL ENSURE TURBIDITY OUTSIDE CANAL IS DSR B 0 NTU ABOVE BACKGROUND AT ALL TIMES DURING CONSTRUCTION ACTIVITY. R❑SS—SECTI❑N 5)NO CORAL,MANGROVE.SFAGRASS,OR HARD BOTTOM SHEET NUMBER -i A IMPACTS ARE PROPOSED FOR THE SEDIMENT REMOVAL 4 OF 1 2 ACTMTIES SHEET OF SHEETS 1 I 2 f 3 I 4 I 5 I 8 I 1 1 2 I 3 1 4 I 3 I 6 1 — — ,°` CANAL #268 - IJSI 05 ,I.1-'. r DID �1 F E wood. .. ... ,___ . „ i . ... . . . • • . •. • l'''' kT _ . . �\ Y"a r ^' ENVIRONMENT& '' `�� INFRASTRUCTURE _ -- =b SOLUTIONS, INC. APPROVED SEDIMENT REMOVAL—AREA.... °...•,.,, ..,, I '' ...«, 5845 NW 1587H STREET ' e' . ` TO 7 OO TEL 3 ) 6-5588 FROM STATION 3+00 + -"-` MIAMI LAKES, FL 33014 }} � ,� t I 74--A 1 Ar � fi G k ,$ )I ____--1` i r IFrEND q -- -s �7 PROPOSED SEDIMENT REMOVAL AREA / ��4�POTENTIAL UPLAND STAGING AREAS (' "'i • W j Ia..^vc ), T I �__]MONROE COUNTY PARCELS, 2010 �� "^1„ ' i --1- .,o '..:I ° »FLOATING TURBIDITY BARRIER ' MONROE COUNTY C I - — -�� .,•porapon' ,$!} AigitalGlobe mCNES(2018)Distribution Airbus DS©2018 HERE HURRICANE IRMA - EWP-PHASE III SEDIMENT REMOVAL Sediment Volume Sediment Removal Acummulation Post Canal# DSR# Canal Area(Sq ft.) Area(Sq ft.) Irma(CV) 268 MARATHON SB 188742.17 39957 1479.89 — -140 I i I I I I I I I rill IFGFN(2 A���, PRE HURRICANE IRMA 7)' CANAL BOTTOM -2. POST HURRICANE IRMA _ ' -a.00- _ CANAL BOTTOM • - 0=u=n=1i=l HURRICANE IRMA -eoo- -0=0=0=0= SEDIMENT REMOVAL AREA B i _ — _ _• , ML LW ELEVAT ION (-2.04 . 1' - 11 T Ii:J� NAVD88) �I _ ( 'll I II I _. -.u11 LI I I NOTES: soo- � I — - —1 1 `� I)MEAN LOW LOW WATER(MLLW) - .L��Ih� J _I' ELEVATIONS REFERENCED FROM NOM TIDE STATION 87239821,,_goo- - APPROVED SEDIMENT REMOVAL AREA - 2)ELEVATIONS SHOWN HEREON ARE RELATIVE TO THE NORTH AMERICAN DESIGNED Br. GWC -800- FROM STATION 3+00 TO 7+00 - VERTICAL DATUM OF 1988(NAND 88) DRAWN BY- GWC -9.00- - 3)THE PROFILE IS JUST A REPRESENTATION -NECKED BY: RH OF THE IMPACTS TO THE CANAL SYSTEM, APPROVED BY. RH IN SOME INSTANCES NOT ALL FINGER DATE: 1c10i/_0•,'. '- -moo- - CANALS ARE REPRESENTED WITH A CROSS SECTION HOWEVER THE IMPACTS ;HEFT nTLE _ - - ARE TYPICAL WITHIN EACH SEGMENT AND -MOO I I I I I I I I 1 , I ARE PART OF THE EVALUATION TO BE SEDIMENT REMOVAL A 3.,040 4.obA0 s.do.00 s.do.00 7.wno RESTORED.2 5-r w CANAL #268 — 4)CONTRACTOR SHALL ENSURE TURBIDITY DSR5B OUTSIDE CANAL IS 0 TUTU ABOVE 0 So 100 1 R❑S S-S E C T I❑N BACKGROUND AT ALL TIMES DURING a_ I I Net 268 CONSTRUCTION ACTIVITY. SHEET - ; k 5)NO CORAL,MANGROVE,SEAGRASS,OR 5 OF 12 HARD BOTTOM IMPACTS ARE PROPOSED FOR THE SEDIMENT REMOVAL ACTIVITIES SHEET OF 5+1 " 1 I 2 I 3 I 4 I 5 I 5 I 1 I 2 t 3 f 4 I 5 1 6 1 Alai, \\ 100 , \ APPROVED SEDIMENT REMOVAL AREA �adorio, 1 FeB1 A FROM STATION 0+60 T❑ 6+00 -• L #269 - DSR#5B - MARATHON P I_ WOOC�. 1 - ,, ,, , I 1 ., _r_ , , _ 1, , .,...,,_ 1 A. .. , I 1 _ — E EN VIRONMEN (� ,,, ., , +.6.% INFRASTRUCTURE ,..-�, 1 — _ ",, ) �fq� f 5845 NW SOLUTIONS. INC L ii" MIAMILAKEFL 33C L o 0 / .•.-- , o� FCEND // ,.♦ @ '�. �/�PROPOSED SEDIMENT REMOVAL AREA - 44 :"POTENTIAL UPLAND STAGING AREAS ,. - '4,- ...11104116, , 4 [-_]MONROE COUNTY PARCELS. 2010 A oo*--FLOATING TURBIDITY BARRIER i ,' v: t a v r' • , • „` MONROE COUNTY �I � HURRICANE IRMA - EVVSediment Volume -PHASE III SEDIMENT REMOVAL Sediment Removal Acummulation Post Canal# DSR it Canal Area(Sq ft.) Area(Sq ft.) Irma(CY) 269 MARATHON 5B 87894.8 53422.1973 5935.80 — _ LEGEND - •2._, _1,00.. - PRE HURRICANE IRMA �� 1 CANAL BOTTOM -2. POST HURRICANE IRMA CANAL BOTTOM_ L I-11 — _ 111=11 I-1 J I— —1 H 1 I—_ -3 11111=111 I1-11E111�11-1I1 11=111- 11-111-111-1I 11-1I I111 IJ 11=111-1I-1 111-111-111p 11—_ ,=,:„=„_ HURRICANE IRMA 4 — 0-0-0-n- SE e �1-111=1 I L—I I H 1 I-1�1-111-11 E�I I I�I ITf=�f �11� �I 1-1TI=1 I IJ 1 I I ��I I I—III-111—I((=III — DIMENT REMOVAL AREA III—III Jj(=ll-=111—Ill-111EJ 11—II I=I I I�11=11 f=1w-11=111-1 I--m= L=m---11 1=�— 111=111-111=1 1=E1— -A'00-�1—hl—III 111-111—I1—JE—J IJ.-111I J11=1 1-111-111-11 Jll—ll(—J I-111—I11—IL L-111-111—III—II 111911. - .,,�,,,,,�, MLLW ELEVATION (-2.04 11111-111111-111—III-111-111—I I I-11 11-1 I I-111-111—I 11-111—III-111-111-111—I 11—I I( 111-111-111-111-111-111—I 1 11— —111-111-111-11— - FT NAVD88) 5 =J_T=1(i—I I=111=11 1 f=111E111=11 I-1THEM=Ill-1 I I-1 I1=J L1T11=T11111EI 1111-111=111 1 ffl 1_—II 11_=1111=11111 ____1 IT=11 fT=f it -11=111Ein=ifi TI-I == NOTES; 11FTE= ll�—I I I .IZ�J I I-1L—W=Ill_--=, E LL=_1J L 1 _- llz-ifi 11 i _11�J LL=IL=LLL_JU—LIB U _=I �LL 11 L-TI LLL I—11J1 )MEAN LOW LOW WATER(MLLW)ELEVATIONS 11 L,I�illy— 4 REFERENCED FROM NOM TIDE STATION -6ao- -u L 1)r 8723962 - - -I- 2)ELEVATIONS SHOWN HEREON ARE RELITNE DESIGNED BY: GWC -T.00- TO THE NORTH AMERICAN VERTICAL DATUM OF 1988(NAVD 88)OF BY: GWC - _ APPROVED SEDIMENT REMOVAL AREA - CHECKED F. RH '-rM eoo- FROM STATION 0+60 TO 6*00 - 3)THE PROFILE IS JUST A REPRESENTATION APPREY,ED - RH - OF THE IMPACTS TO THE CANAL SYSTEM,IN DATE SOME INSTANCES NOT ALL FINGER CANALS -9.00- ARE REPRESENTED WITH A CROSS SECTION - - HOWEVER THE IMPACTS ARE TYPICAL WITHIN A 0 la an- I I I I I - EACH SEGMENT AND ARE PART OF THE SEDIMENT REMOVAL EVALUATION TO BE RESTORED. 0+6100 1.06 0 2.0640 3.a0.00 ..06.0o s.d0.0o 6.00.00 CANAL #269 - �-� 4)CONTRACTOR SHALL ENSURE TURBIDITY a IF.• ROSS-SECTION BACKGROUND OUTSIDECITONANAL ISL NIM ABOVE DSR66 BACKGROUND AT ALL TIMES DURING ' CONSTRUCTION ACTIVITY 269 5)NO CORAL,MANGROVE.SEAGRASS.OR HARD BOTTOM IMPACTS ARE PROPOSED FOR 6 OF 12 THE SEDIMENT REMOVAL ACTMTIES 1 I 2 I 3 1 4 I 5 I 5 I I 2 I 3 I 4 I 5 I 6 E WOO d. EXISTING SEAWALL EXISTING SEAWALL EITHER CONCRETE EITHER CONCRETE - OR EARTHEN OR EARTHEN SOINFLASTRDA LUTIONS. 5845 NW I58TH MIAMI LAKES. FL 331. 0 MEAN LOW WATER ELEVATION I I I III ICI I III-III-FLTEI III ' r_M �_ POST HURRICANE IRMA GRADE I-IIIIII-1 II - 111-11 LI 11-111=11 III OF CANAL BOTTOM El I I IJ 11=1 I I=I=11 -I I1=1 I I-1I E111E11 • -_HURRICANE IRMA PRE HURRICANE IRMA GRADE� SEDIMENTATION IMPACTS OF CANAL BOTTOM BEFORE CONSTRUCTION MONROE COUNTY HURRICANE IRMA - EVVP-PHASE III SEDIMENT REMOVAL EXISTING SEAWALL EXISTING SEAWALL EITHER CONCRETE- r- EITHER CONCRETE OR EARTHEN I OR EARTHEN MEAN LOW WATER ELEVATION PRE HURRICANE IRMA GRADE OF CANAL BOTTOM DESIGNED BY: GWC AFTER CONSTRUCTION DRAWN BY. OWL CHECKED BY RH APPROVED BY: RH DATE. 10/01/2018 SHEET TITLE SEDIMENT REMOVAL A DETAIL SHEET NAME OF REACH:FLORIDA KEYS CANALS SHEET NUMBS- - 12 OF 12 1 I 2 I 3 I 4 1 5 I 6 • EXHIBIT B-1 Estimated resource allocation and 30 day estimate for DSR#5B MONROE COUNTY CANAL DEBRIS REMOVAL & DREDGING DSR: 5B 04/01/2019-04/30/2019 TASK ASSIGNMENT REQUEST CANALS ANTICIPIATED FOR SERVICE: 257&268 DESCRIPTION UNIT UNIT RATE EST. MONTHLY TOTAL QUANTITY 001 MOBILIZATION LS LS N/A $30,000.00 002 NON-HYRDAULIC CY $150.00 2,000 $300,000.00 SEDIMENT REMOVAL 003 TRANSPORT CY $45.00 2,000 $90,000.00 NO ARSENIC 004 TIPPING FEE N/A N/A N/A $50,000.00 005 TURBIDITY BARRIER LF $100.00 800 $80,000.00 006 UPLAND DEWATERING DAY $2000.00 20 x 2 $80,000.00 SITE SURVEYS AND LAB 007 WORK N/A N/A N/A $50,000.00 TOTAL $680,000.00