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13-749-028NOTE: CONTRACTOR SHALL COMPLY WITH THIS PLAN AND THE FLORIDA STORMWATER EROSION AND SEDIMENTATION CONTROL INSPECTOR'S MANUAL BY F -DEP. W 0 0 id a. C u V41 Cr Q n CL n 4 .,n in N a� SILT MCE Construction Specifications Materials 1. Synthetic filter fabric sholl be o pervious sheet of propylene, nylon, polyester, or polyethylene yarn. Synthetic filter fabric shall contain ultraviolet ray inhibitors and stabilizers to provide a minimum of 6 months of expected usable construction life at a temperature range of 0_ F to 120. F (-17C to 49C). 2. Burlap shall be 10 ounces per square yord (340 g/m2) fabric. 3. Posts for silt fences shall be either 4 inch (10 cm) diometer wood, or 1.33 pounds per linear foot (2 kg/m) steel with a minimum length of 5 feet (1.5 m). Steel posts shall hove projections for fastening wire to them. 4. Stakes for filter barriers shall be 1" x 2" (2.5 x 5 cm) wood (preferred), or equivolent metal with a minimum length of 3 feet (90 cm). 5. Wire fence reinforcement for silt fences using standard strength filter cloth shall be a minimum of 36 inches (90 cm) in height, a minimum of 14 gauge and shall have a maximum mesh spacing of 6 inches (15 cm). Sheet Flow Application: Silt Fence This sediment barrier uses standard strength or extra strength synthetic filter fabrics. It is designed for situations in which only sheet or overland flows ore expected. (See Plate 4.06d) 1. The height of o silt fence shall not exceed 36 inches (90 cm). Higher fences may impound volumes of water sufficient to cause failure of the structure. 2. The filter fabric shall be purchased in a continuous roll cut to the length of the barrier to ovoid the use of joints. When joints are necessary, filter cloth shall be spliced as described in item No. 8 below. 3. Posts shall be spaced a maximum of 10 feet (3 m) apart at the barrier location and driven securely into the ground a minimum of 12 inches (30 cm). When extra strength fabric is used without the wire support fence, post spacing shall not exceed 6 feet (1.8 m). 4. A trench shall be excavated approximately 4 inches (10 cm) wide and 4 inches (10 cm) deep along the line of posts and upslope from the barrier. 5. When standard strength filter fabric is used, a wire mesh support fence shall be fastened securely to the upslope side of the posts using heavy duty wire staples at least 1 inch (25 mm) long, tie wires, or hog rings. The wire shall extend into the trench a minimum of 2 inches (5 cm) and shall not extend more than 36 inches (90 cm) above the original ground surface. 6. The standard strength filter fabric shall be stapled or wired to the fence, and 8 inches (20 cm) of the fabric shall be extended into the trench. The fabric shall not extend more than 36 inches (90 cm) above the original ground surface. 7. When extra strength filter fabric and closer post spacing are used, the wire mesh support fence may be eliminated. In such a case, the filter fabric is stapled or wired directly to the posts with all other provisions of item No. 6 applying. 8. When attaching two silt fences together, place the end post of the second fence inside the end post of the first fence. Rotate both posts at least 180 degrees on a clockwise direction to create a tight seal with the filter fabric. Drive both posts into the ground and bury the flap. (See Plate 4.06g) 9. The trench shall be backfilled and the soil compacted over the filter fabric. 10. The most effective application consists of a double row of silt fences spaced a minimum of three feet apart. The three foot separation is so that if the first row collapses it will not fall on the second row. Wire or synthetic mesh is may be used to reinforce the first row. (See Plate 4.06c) 11. When used to control sediments from a steep slope, silt fences should be placed away from the toe of the slope for increased holding capacity. (See Plate 4.06f) 12. Silt fences shall be removed when they have served their useful purpose, but not before the upslope area has been permanently stabilized. Maintenance 1. Silt fences and filter barriers shall be inspected immediately after each rainfall and at least daily during prolonged rainfall. Any required repairs shall be made immediately. 2. Should the fabric on a silt fence or filter barrier decompose or become ineffective before the end of the expected usable life and the barrier still be necessary, the fabric shall be replaced promptly. 3. Sediment deposits should be removed after each storm event. They must be removed when deposits reach approximately one-half the height of the barrier. NOTE: Prefabricated Qr Inlet In rn I Filter Qgg 1. Remove the grate over the catch basin and insert the filter device, then replace the grate to hold the device in position. 2. When sediments hove accumulated to within 1 foot (30 cm) of the grate, the filter insert must be removed by a front-end loader or forklift. The filter may be discarded and replaced, or it may be emptied at an approved dumpsite, cleaned, and reused. 3. Contractor shall install and maintain on internal filter bag, or equivalent, on all existing and proposed catch basins throughout the duration of construction. EXISTING OR NEW INLET GRATE OVER FABRIC PROP. FILTER EXISTING OR FABRIC NEW INLET FRAME FILTER FABRIC OPTION N.T.S. 4 FILTER FAIIRIC MATERIAL SrrrTr 4 E' pMTS :- T❑ NE 6-10 FEET APART zFUET FOR ADDITIONAL STRENGTH FILTER FAVIC MATERIAL CAN RACKFILLED TRENCH .: BE ATTACHED TO..A G -INCH (MAXI ili=W MSH VIRE SCREEN :WHICH HAS UI I I II BEEN FASTENED TO THE RUSTS SILT FENCES F�GEO M TFE WS Ut [IF U" ATTACHING TWO TWE VIE FEN . IITWWRY I kOES ff MW FINK I%*T10 1L Exl•• _ lhJE TrE N,7GT STS Mgt rW A IE W F TI -E We ff -. ' - - PPCTH P mATUt �ITIi IRrKTLI It'•FRL IN7RL�L Vrm rF NnT �- - P•�L 7if N R57 lF the FYRt i1b� •' '. : ,tiATt M1'FTf�C7S A7 Lr -.&T in / 5 N n Id I�u K IW� 4• KWW704 To iNKME y 'YJ.L YtM DE FDIC INTI. �„ ,a MPOWISTE Ut7i ' i,cT�+ r vfF vF7ir P%% A=Ll ifi�li N i.JS7 FLN DIVER510N RIDGE REQUIRED GRADE EXCEEDS 27r, OR GREATER EXISTING P,►,V>=D ' ROADWA i FILTER FABRIC SECTION A - A ti NOTE, / SY"ILLY4AY USE S/ t DsAG5, STRAW 6ALns SEDIMENT BARRIER OR THVR AFFROVED METHODS (STRAW SALT= TYl'E 5HO"V 1 TO HANNELIZE RUNOFF TO BASIN SUPPLY WATER TO WASH �� \ K4EEL5 IF NECESSARY. ' o ry�k I FLOW ✓ 3 � G t O 2: A © L �IL Y z f- X W f ' FLOW PLAN OTES= 2. WHEN NEC�SaARY, WHEELS SHALL BE GLEANEV 1• THE ENTRANCE SHALL SE MAINTAINED IN A PRIOR TO ENTRANCE ONTO PUISLIC RIGHT-OF-WAY CONDITION THAT WILL FREVENT TRACKING OR 5. WHEN WASHING 15 REOUIRED, IT SHALL BE DONE PLOWING OF 5Er?lMI NT ONTO f'MLIG RIGHTS- ON AN AREA STABLIZED WITH 0RU5WV STONE OF44AY. THIS MAY REQUIRE TOF DRE551NG, ADRAINS INTO AN APFROVEn SEDIMENT TRA REPAIR AND/OR CLEANOUT OF ANY I,,MA5URE5 THAT T T PRAINT BASIN. Umv, TO TRAP SEDIMENT• Washing If conditions on the site are such that most of the mud is not removed by the vehicles traveling over the stone, then the vehicle tires must be washed before entering a public road. Wash water must be carried away from the entrance to a settling area to remove sediment (see Figure 4.3b of the Florida Stormwoter Erosion and Sedimentation Control Inspector's Manual). A wash rack may also be used to make washing more convenient and effective (see Figure 4.3c of the Florida Stormwater Erosion and Sedimentation Control Inspector's Manual). Lggot;on The entrance should be located to provide for maximum utility by all construction vehicles. Constructign S12ecificotions The entrance area should be cleared of all vegetation, roots, and other objectionable material. A geotextile should be laid down to improve stability and simplify maintenance when gravel is used. The gravel sholl then be placed over the geotextile to the specified dimensions. Mointenongg The stabilized construction exit sholl be maintained in a condition that will prevent the tracking or flow of mud onto public rights of way. This may require periodic maintenance as conditions demand, and the repair and/or cleanout of any structures used to trop sediments. All materials spilled, dropped, washed, or tracked from vehicles onto roadways or into storm drains must be removed immediately. Look for signs of trucks and troilered equipment "cutting corners" where the construction exit meets the roadway. Sweep the paved road os needed. 4Gi• Li• • •tv 40 • s ��.ti i • r3 . � r r rru s r r V it • G • l r.•• ••rir t+ r u ••rr u r • • u Y 4 I- Z UJ U 0 0 0 U CA) 0 I rf O(`-REATIONAL D ESIGN AND CONSTRUCTION, INC. 3990 North Powerline Road Ft. Lauderdale, FL 33309 Voice: 954.566.3885 Fax: 954.566.3335 u •�J A • w V O W UJ R _ �w t L w I� � J to sn I- M M w 0 J ILL UJ 0 ( 1 �M O V MM w so i J r Lu N Q zE m 04 O � iI- ILL I- W O EL z d' T (L Zw 0 W J N u_U. Z0 00 O. Cn > LLQ ■.+. QCT ' a .� 0 LL I a Cr0 f+ p D 1%-. 0 CL CD �/� U. O Cf Lu U ❑ inO a XC�CYL IIT F_ LU in O Z J Ui�OG'CQ�E�� �112C. LAND SURVEYORS z CIVIL ENGINEERS LAND PLANNERS Z La#87 CA#87 O U 3240 CORPORATE WAY MIRAMAR, FL 33025 TEL: (305)652--7010 Z FAX: 1652-8284 seal5 L10 Cn N x,335 Z LUIJyFle n1vas,rfE. FL 1%t /N ..'5005 u_ O PROJECT NUMBER 0 1320MPCP M a FILE No. :-------- DRAWN J.A.O. REVIEWED: H.J.N. Z CHECKED: H.J.N. w r DATE 07-02-•13 to ISSUE / REVISIONS Z L SHEET TITLE EROSION & SEDIMENT CONTROL DETAILS SHEET NUMBER C-15