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HomeMy WebLinkAbout1981 - Plans of Proposed Control StructureIINDEX OF SHEETS SHEET NO. DESCRIPTION COVER SHEET Amu, oft d ar structure IN creeft L 4i ROJECT\ 411 COUNTY OCATION L- EST TED QUANTITIES ITEM NO DESCRIPTION UNITS " QUAN7TIES TEMPORARY STEEL SHEET PILE DAM AND DIVERSION PIPE , COMPLETE L.S. EXISTING STEEL CONTROL STRUCTURE AND CONCRETE SLAB TO BE REMOVED AND DISPOSED OF L.S. 6" THICK X 4' WIDE PRECAST CONCRETE SHEET -PILE UNITS, IN PLACE L.P. 204 4 4" THICK X 4' WIDE PRECAST CONCRETE TOE WALL AND SPILLWAY UNITS , IN PLACE L.F. 266 5 STRUCTURAL CONCRETE , POURED IN PLACE , 'INCLUDING REINFORCEMENT CY 11.9 6 UNSUITABLE MATERIAL TO BE REMOVED AND REPLACED WITH SAND C.Y. 40 7 POLYPROPYLENE FILTER FABRIC S.Y. 105 8 WASHED BALL4T ROCK FILL C-Y 60 9 DRAWDOWN VALVE . COMPLETE L.S. I FI % W0ZMA L UP5TR.EJtJA WP.TF- LINE. t TOP OF TOE WALL UNITS /•, EL.- t 5.58 I 411 EMR�EDMEiJT d •r 4" 7" E 5PEET PILE UNITS �5 THROUGH P8 TOE WALL U Ki 175 Q TH ROUG 14 T9 SECT. 'A -A' -TYPICAL. SECTIO � AT SPI LI-�,IAY Y :- - M_s• r € DESIGNED " DRAWN CHECKED JOB NO. r } " " DATE SCALE APPROVED FILE NO. I CAL SECTIONS & MISC. DETAILS REVISION DATE; DESCRIPTION BY l AF 21119 4-4I I I r :t a t. N 1 a < s"-• r. b _ X , { I d" tt I - N _ /� t I' Vi • i Y E 2 N T y uI 5 P9 E3 o , ifNtTS-CUT. NOLE�A5 REQuiQED. ,. _ 0 ,.. O AGE A E 4 t H 4 .. r . 7 OMOD T '2 �'!P SG A2 - - E D G .E, - 5 T T -r _ j N Jo{N o JOItJT .. .,. ...... f=E PLAN VIEW .. AN "D _ _ NT T o t .. _ � :.: D. RAW J J Nr - pC1 w N - irAL'V E DZ=TA1 L SN T ,. < TyP C L UNIT ��,�. E 1 SPEG L UNilTS � .. •.:._ E _ L �4 !-�1J ALEI4 ► o Ty�Ic �.--....,:..,.. _uNiTs ._ h.L UNtT _ �4 , -- ... a ,. :. •..- .'. .. .'. _. •t.. ,F .S , .K , . .w , , , w n , r. gib L P1T P� AIL5 - 5NEET PILE UNITS HROUG O T � � DETA �P L�A►� UWI1"I_ I i' a , I R CAS ti , P E T i U T N TES• .: ,." : O , S N t I LD GRE S LL ATT IN A MUM G MPRESS VE STiZEN H OF GT DOO 28 DA S. •' , 4 P 1 SN " S EEL L O O GRADE (o K < •. 2 PEE (o S .. . ,::-•1 TEE EF NOS SHALL AT CENTER SLA�SELTON SE PLAGED •< -:: .: . ," < .. ..... ... A E U T r . S O T M V E R E TO R StST M T U ,. '? E D R1N PLAGiN OF COCON .... , . , . - G V- T NESSES SNO A ACTUAL W RE T T A KN S N15 - - ... ... .. <... .- -; O A C ESSE R A .- E U NI FO S L E 5 _....... .. :. ..... � T N L 13 TIZrAiGH N R ,> .. . RU D SU E T E T N O U TS 5 CONCRETE 5L 6PLAGED iNCD F RACEWIT H ALL APPaCA E RE ui , , < .... .. ... .. .. :.. , NT - S ME " i'D T S50G N .. , .. .. 6E T ..: . R A E 1�l - Y f3 TO O 1 T LA V EL IN L U _ • D E L NO I N •., . N N 1tJ R M E M L .. :........ .._ . .. CO B A 5 E 1 1 Y ... _ -. ..... . E Y G D T is oo I r •. O M •-' _ F S T E S N o '• _ RM ONE G O ;.. ,:. ,.. •:. , FINISH) P,f I E E 6E. 00 13 F C F T M N a. S F H S X PT T TROWEL OK H R L IN ` N OTHERWISE R E OR R E N S E l.. 7 T E �. ' D MA D UNIT L N • ., P� G 1 T S L L -COSTS F RE LAG •' ' S ►-� N r S E A D CO S I N .. A o E o U P N U LL S G N T A. 1 Su E 2 TO . U S ►.► G E E ONTIZA y.. O TN G C3 R . - � Y , - .v < z < f a ES GNED D I DRAWmilli I N HE t DRAYiING -NO" .. .F ; >; a. _ A- :OYD. :CUATES �. , DATE SCALE -APPROVED FILE N ` ..SH ET F• T-DTIS y:. T UNI E A L . , " ., , _.. .CONS TtN ENGINEERS , VERO -BEACH:- DESCRIPTION BY FLORID ,. r GENERAL NOTES 1. SCOPE OF WORK.. Contractor shall provide all materials, labor, equipment, utilities and incidentals necessary to construct' the control structure cortiplete as described herein, including removal and disposal of the existing structure and including temporary facilities to contain and divert the upstream vators during construction; and to complete said work within the timtc stipulated in .the contract documents, which time shall bE-.of the essence of the contract. 2. BASIS OF PAYMENT. Payment shall be made at the contract unit prices bid for the actual quantities put into place and accepted. Quantities.listed in the schedule of bid items are estimates onlN7 and actual final quantities may be higher or lower. 3. SEQUENCE OF CONSTRUCTION. Work shall be performed in the following order: A. Construct temporary intake riser and diversion piuc. B. Install temporaty sheet pile dam. C. Remove and dispose of the existing control struct,.:rc. D. De -water the construction area. Use earth berming as necessary to keep the tailwaters• from the construc- tion area. (See profile, sheet 5.) E. Construct the new control structure. F. Remove temporaty sheet pile dam. G. Remove intake riser and diversion pipe. 4. TEMPORARY INTAKE RISER AND DIVERSION PIPE. Pipe may be new or used (sound condition), aluminum or steel. Placement of - pipe (trenching, pipelaying and backfilling) shall be per- formed in segments starting at the discharge end, to prevent. -scape of the upstream waters through the pipe trench. L.he proposed structure is completed, the temporary pipe s::all be similarly removed in segments. Slope protection may be left in place. After removal, pipes shall be the property of the contractor. All costs incidental to the placeir,ent, maintenance anC. removal of these items, including slope prc- tection, shall be included in the lump sum. price bid for "Ter,.porary Steel. Sheet -Pile Dam and Diversion Pipe, Compl-t-C". _ . TEMPORARY STEEL SHEET -PILE DAM. Sheet -piling shall be des <,r:ec' and placed with due regard to the critical nature of the installation 'and. the serious consecuences which would res_�1 fro^: its failure. Contractor shall submit shop drawi nas showina the tvpe of sheet -piling to be used, dimensions, embedment and structural calculations for review by the Engineer. All costs incidental to the placement, maintenance and removal of this item shall be included in the lump sum price bid for "TeFporary Steel Sheet -Pile Dam and Diversion 6. REMOV"L OF EXISTING STRUCTURE. Before submitting his bid, the.Bidder shall examine the existing structure and satisfy himself as to the amount of work required to remove and dispose of it. This work shall be performed for the contract lump sum bid for "Existing Steel.Control Structure and Concrete Slab to be Removed and Disposed of". 7. PRECAST CONCRETE SHEET PILE, TOE WALL AND SPILLWAY UNITS. Units shall be cast..ture to the dimensions shown. Units shall have smooth form finish on one side, smooth trowelled finish on the other side. Concrete shall be well vibrated to elimi- nate honeycombing and -voids. Reinforcing steel. shall be accurately positioned to provide maximum concrete cover over the steel. Units shall be set into place by water -jetting, in the order indicated by the identification numbers. (First P1, then P2, etc.) Care shall be taken to maintain proper alignment of the units during jetting. owner reserves the right to request modifications to the length of units, due to conditions encountered in the field. PaN-ment shall be made based on the actual length of sheet pile units in place. S. GROUTING OF UNITS. After all 6" ("P") units are in place, these shall be arouted. The grouting keyway- shall first be cleaned of soil clown to the level of the channel bottom. (By flushing with water.) Then the keyway shall be filled with high -strength hydraulic grout, using some method to prevent escape of the grout through the joints. Acceptable methods incl,ee: 1) Pouring the grout into a neoprene rubber tube i::se=rted into the kel-Tay and 2 ) seang the Joints with packing before filling the kergay with grout. Cost of grout shall be included in the cost of 6" thick sheet pile units. 0. CAST IN PLACE CONCRETE. Concrete shall attain a minimum Cc)mpressive strength of 4000 psi at 28 days. Reinforcing steel shall be Grade 60 (60 ksi). Concrete shall be mixed, formed and placed in.accordance with all applicable ACI standards. Form' shall be straight, true and have smooth surfaces. Areas to receive concrete shall be free from water. Special care shall be exercised to eliminate voids, honey- combina and inac-ecuate cover over reinforcing steel. The concrete shall•be�adequately vibrated to insure a dense, water tiQh t surface. All costs incidental to the cast - in - place concrete (formwork, reinforcing, concrete and placing) shall be included in the contract unit price bid per cubic yard for "Structural Concrete, Poured In Place, Including Reinforcement". 10. HANDRAILS. Handrails shall be paid for per linear foot of handrail assembly, in place. FLASH BOARD RISERS. Boards shall be straight, true and free from imperfections which would adversely affect their strength or sealing_ ability. Payment shall be based on the actual of buard - feet of lumber in placc. 12. DRAWDOWN VALVE ASSEMBLY. See detail, sheet 4. 13. UNSUITABLE MATERIAL. Upon removal of the existing structure and de -water of the construction area, any channel -bottom material judged by the Engineer to be unsuitable shall be removed and replaced with clean course sand. All costs incidental therto shall be included in the contract unit j price bid ,per cubic yard for "Unsuitable Material To Be Removed and Replaced With Sand". i 14. POLYPROPYLENE FILTER FABRIC. May be woven or spun.. Pay-: ment shall be made for the actual quantity of material used. 15. INCIDENTALS (ITEM 12). This item shall include any con- struction shown he rein which is not specifically included in any bid item, or any minor items necessary to complete the structure as shown. It is not intended to cover substantial ;ic.,difications to the structure or scope of i•:ork. i j I i i i DESIGNED DRAWN CHECKED JOB NO. DRAWING NO. LLOYD AND ASSOCIATES DATE SCALE APPROVED FILE NO. GENERAL NOTES' CONSULT_IN`j EN`j�NEERs SHEET Of REVISION DATE DESCRIPTION BY VERO BEACH FLORIDA 6 6