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W LLJ 2' MAX W a � WALKABLE SURFACE 0 6__� F A O7 S 0" O 8 S A� O 3QO Ilk E±] 0„ FO NON -WALKABLE SURFACE 0" L 5' MAX O COMBINED DIRECTIONAL QQ BACK OF CURB FLOW LINE FRONT OF GUTTER TO 10% SLOPE DIRECTIONAL RAMP WALKABLE FLARE 5-VAX GRADE NON -WALKABLE SURFACE (D O RAMP BREAK O f-1 0" (I3__1 _ IN ALL2DIRECTIONS TII NT E BLVD.IS CONSTRUCTED AND IS WIDTH AT TOP OF CURB E CONCRETE RAMP WIDTH TO OF CURB. STANDARD ONE-WAY DIRECTIONAL Q9 W W 2 2 LLJ REVISION: APPR VED:JANUARY 23.2017 � � OPERATIONS ENGII�ER P O DETECTABLE �yARNING PLACEMENT r4HEN SETBACK CCRITERIA IS EXCEEDEtl 12 RAMP ONE-WAY DIRECTIONAL WITH DETECTABLE WARNING AT BACK OF CURB 1.0% 2.0% SURFACE ?" ° ?. �;' a �;I"a .�o e."p"•. ee. 6" CONCRETE WALK BACK OF CURB FLOW LINE 2.0%-3.0% FRONT OF GUTTER GUTTER SLOPE SECTION D-D CURB FOR DIRECTIONAL RAMPS 14 ;0 GRADE BREAK MAX. 2.0% SLOPE IN ALL DIRECTIONS EC 6" CONCRETE WALK 3" MINIMUM CLASS 5 AGGREGATE BASE V 4' C "o. e. 4 C "d . TYPICAL SIDE ALK SECTION WITHIN INTERSECTION CORNER �� -f00 s1:salt !o 0 �lt OF Tt�� SiATE DESIGN ENGINEER NOTES: LANDINGS SHALL BE LOCATED ANYWHERE THE PEDESTRIAN ACCESS ROUTE (PAR)CHANGES DIRECTION, AT THE TOP OF RAMPS THAT HAVE RUNNING SLOPES GREATER THAN 5.0%, AND IF THE APPROACHING WALK IS INVERSE GRADE. INITIAL CURB RAMP LANDINGS SHALL BE CONSTRUCTED WITHIN 15'FROM THE BACK OF CURB.VTH 6'FROM THE BACK OF CURB BEING THE PREFERRED DISTANCE.ONLY APPLICABLE WHEN THE INITIAL RAMP RUNNING SLOPE IS OVER 5.0%. SECONDARY CURB RAMP LANDINGS ARE REQUIRED FOR EVERY 30" OF VERTICAL RISE WHEN THE LONGITUDINAL SLOPE IS GREATER THAN 5.0%. CONTRACTION JOINTS SHALL BE CONSTRUCTED ALONG ALL GRADE BREAKS �yITHIN THE PAR.1/4" DEEP VISUAL JOINTS SHALL BE USED AT THE TOP GRADE BREAK OF CONCRETE FLARES AADJACENT TO WALKABLE SURFACES. ALL GRADE BREAKS j�ITHIN THE PAR SHALL BE PERPENDICULAR TO THE PATH OF TRAVEL. THUS BOTH SIDES OFF A SLOPED WALKING SURFACE MUST BE EQUAL LENGTH. TO ENSURE INITIAL RAMPS AND INITIAL LANDINGS ARE PROPERLY CONSTRUCTED. LANDINGS SHALL BE CAST SEPARATELY.FOLLO SIDEWALK REINFORCEMENT DETAILS ON SHEET 6 AND THE ADA SPECIAL PROVISION (PROSIPCUTION OF WORK). TOP OF CURB SHALL MATCH PROPOSED ADJACENT WALK GRADE. tHEN THE BOULEVARD IS 4' IDE OR LESS, THE TOP OF CURB TAPER SHALL MATCH THE RAMP SLOPES TO REDUCE NEGATIVt BOULEVARD SLOPES FROM THE TOP BACK OF CURB TO THE PAR. ALL RAMP TYPES SHOULD HAVE A MINIMUM 3- LONG RAMP LENGTH. 4'MINIMUM WIDTH OF DETECTABLE �ARINING IS REQUIRED FOR ALL RAMPS. DETECTABLE WARNINGS SHALL CONTINUOUSLY EXTEND FOR WNN.OF 24" IN THE PATH OF TRAVEL.DETECTABLE tARNING TO COVER ENTIRE WIDTH OF SHARED -USE PATH AND THE ENTIRE PAR WIDTH OF HE �ALK. DETECTABLE WARNING SHOULD BE 6" LESS THAN THE PAR/PATH WIDTH.ARC LENG H OF RADIAL DETECTABLE WARNINGS SHOULD NOT BE GREATER THAN 20 FEET. RADIAL DETECTABLE WARNINGS SHALL BE SETBACK 3" MINIMUM TO 6" MAXIMUM FROM THE BACK OF CURB. SEE NOTES @ & 11 FOR INFORMATION REGARDING RECTANGULAR DETECTABLE WARNING PLACEMENT. lO MATCH FULL CURB HEIGHT. Q2 3" HIGH CURB WHEN USING A 3- LONG RAMP 4" HIGH CURB WHEN USING A 4' LONG RAMP. O MINIMUM E RU7B HEIGHT DISTANCE REQUIRED BETWEEN DOMES) 4" PREFERRED MIN. DISTANCE MIN. BETWEEN 4Q THE "BUMP" IN BETWEEN THE RAMPS SHOULD NOT BE IN THE PATH OF TRAVEL FOR COMBINED DIRECTIONAL RAMPS. IF THIS OCCURS MODIFY THE RAMP LOCATION OR SWITCH RAMP TO A FAN/DEPRESSED CORNER. O5 WHEN USING CONCRETE PAVED FLAB ON THE OUTSIDE OF DIRECTIONAL RAMPS, AND ADJACENT TO A WALKABLE SURFACE. yDIRECTIONAL RAMP FLARES SHOULD BE USED. SEE THE DETAIL ON THIS �SHEET. GRAO IMDWHENLO IS SHALL RIGHT OF WAY ALj�jSAYS BE USED ENWHEN AADJACENT SIBLE. V CTO PARKING URB. IF USED. LOTS. CONCRETE L BE EOROBI BITUMINOUS TAPERS DE THE LK SHOULD BE USED OVER V CURB TO REDUCE TRIPPING HAZARDS AND FACILITATE SNOW & ICE REMOVAL. O7 MAX. 2.0% SLOPE IN ALL DIRECTIONS IN FRONT OF GRADE BREAK AND DRAIN TO FLOW LINE. SHALL BE CONSTRUCTED INTEGRAL WITH CURB AND GUTTER. ® 8% TO 10% WALKABLE FLARE. O9 PLACE DOMES AT THE BACK OF CURB WHEN ALLOWABLE SETBACK CRITERIA IS EXCEEDED. 10 FRONT EDGE OF D TECTVLE WARNING SHALL BE SET BACK 2'MAXIMUM WHEN ADJACENT TO WALKABLE SURFACE, AND 5, MAXIMUM HEN ADJACENT TO NON -WALKABLE SURFACE WITH ONE CORNER SET 3" FROM BACK OF CURB.A WALKABLitSURFACE IS D FINED AS A PAVED SURFACE ADJACENT TO A CURB RAMP ��yyITHOUT RAISED OBSTACLES THAT COULD MISTAKENLY BE TRAVERSED BY A USER WHO IS VISUALLY IMPAIRED. 11 RECTANGULAR DETECTABLE WARNINGS MAY BE SETBACK UP TO 9" FROM THE BACK OF CURB WITH CORNERS SET 3" FROM BACK OF CURB. IF 9" SETBACK IS EXCEEDED USE RADIAL DETECTABLE WARNINGS. 12 FOR DIRECTIONAL RAMPS WITH THE DETECTABLE WARNINGS PLACED AT THE BACK OF CURB. THE DETECTABLE WARNINGS SHALL COVER THE ENTIRE IDTH OF THE WALK/PATH. THIS ENSURES A DETECTABLE EDGE AND HELPS ELIMINATE THE CURB TAP R OBSTRUCTING THE PATH OF PEDESTRIAN TRAVEL. 1© THE CONCRETE WALK SHALL BE FORMED AND CONSTRUCTED PERPENDICULAR TO THE BACK OF CURB. MAINTAIN 3" BETWEEN EDGE OF DOMES AND EDGE OF CONCRETE. 14 TO BE USED FOR ALL DIRECTIONAL RAMPS. EXCEPT WHERE DOMES ARE PLACED ALONG THE BACK OF CURB. THESE LONGITUDINNAL SLOPE RANGES SHALL BE THE STARTING POINT. IF SITE CONDITIONS WARRINT.LONGITUDINAL SLOPES UP TO 8.3% OR FLATTER ARE ALLOWED. TINDICATES PEDESTRIAN RAMP - S OPE SHALL BE BETWEEN 5.0% MINIMUM AND 8.3% MAXIMUMLIN THE DIRECTION SHOWN AND THE CROSS SLOPE SHALL NOT EXCEED 2.0%. Q INDICATES PEDESTRIAN RAMP - SLOPE SHALL BE GREATER II THAN 2.0% AND LESS THAN 5.0% IN THE DIRECTION SHOWN AND CROSS SLOPE SHALL NOT EXCEED 2.0%. ®LANDING AREA - 4' X 4' MIN. (5' X 5' MIN. PREFERRED) DIMENSIONS AND MAX 2.0% SLOPE IN ALL DIRECTIONS. LANDING SHALL BE FULL'WIDTH OF INCOMING PARS. X" CURB HEIGHT REVISED: I PEDESTRIAN CURB RAMP DETAILS APPROVED, STANDARD PLAN 5-297.250 (SHEET 2 OF 6) 1-23 -2017 SHEET NO. 7 OF 25