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i. RAMPS SHALL HAVE A 12" WIDE BORDER WITH I.4" GROOVES APPROXIMATELY 341 O.C. <br /> SEE GROOVING DETAIL. THE SURFACE OF THE RAMP SHALL HAVE A TRANSVERSE GROOMED <br /> SURFACE TEXTURE ROUGHER THAN THE SURROUNDING SIDEWALK. <br /> 2. DIMENSION 'A' IS DEFINED AS THE CURVE LENGTH OF THE FLARE ON THE UPSTREAM HALF <br /> OF THE CURB RAMP. <br /> 3. DIMENSION 'B' IS DEFINED AS THE CURVE LENGTH OF THE FLARE ON THE DOWNSTREAM <br /> HALF OF THE CURB RAMP. <br /> 4. WHEN DRAINAGE AROUND CURB RETURN IS A FLOW BY CONDITION. USE FLARE 'A' AND 'G' <br /> TABLES. WHEN DRAINING AROUND CURB RETURN CREATES A SUMP. USE THE FLARE 'A' <br /> TABLE FOR BOTH FLARES. <br /> 5. VALUES FOR 'A' . 'B' AND CURB RAMP TYPE SHALL BE SHOWN ON THE IMPROVEMENT PLAN. <br /> CONTRACTOR SHALL CONTACT ENGINEER IF VALUES DETAILED ON PLAN VARIES FROM <br /> EXISTING CONDITION. <br /> 6. CONSTRUCT RAMP OF 4" THICK P.C.G. CLASS 520-C-2500. <br /> 7. TYPE I CURB RAMP IS TO BE USED FOR ALL NEW CONSTRUCTION WHERE THE CURB RETURN <br /> RADIUS IS 25' MINIMUM. TYPE I SHALL ALSO BE USED FOR RETROFITS WHERE SUFFICIENT <br /> RIGHT OF WAY EXISTS. <br /> 8. TYPE II CURB RAMP IS TO BE USED FOR ALL OTHER RETROFIT CONDITIONS. <br /> 9. SPECIAL DESIGN IS REQUIRED FOR ALL CASES WHERE EXISTING CURB FACE EXCEEDS 8". <br /> EXISTING SIDEWALK EXCEEDS 1:48. OR STREET GRADE EXCEEDS SLOPES DESIGNATED IN <br /> TABLES. <br /> 10.GUTTER PLATE WITHIN RAMP LANDING AREA SHALL HAVE A MAXIMUM SLOPE OF 1:20 AND <br /> THE GUTTER LIP SHALL BE FLUSH WITH ADJACENT AC PAVEMENT. <br /> 11.DETECTABLE WARNING SURFACE SHALL MEET ALL FEDERAL ADA REQUIREMENTS AS <br /> WELL AS STATE TITLE 24 REQUIREMENTS. <br /> 12.DETECTABLE WARNING SURFACE SHALL HAVE A 70% CONTRAST WITH THE ADJACENT RAMP <br /> SURFACE IL IGHT-ON-DARK OR DARK-ON-LIGHT). <br /> 13.DETECTABLE WARNING SURFACE SHALL BE INSTALLED SO DOMES ARE ALIGNED PARALLEL <br /> TO CENTERLINE OF CURB RAMP. <br /> 14.COLOR OF DETECTABLE WARNING SURFACE SHALL BE DARK GREY AS MANUFACTURED BY <br /> ARMOR-TILE. ARMORCAST. OR APPROVED EOUAL UNLESS OTHERWISE SPECIFIED BY <br /> ENGINEER. <br /> 15.ADDITIONAL CURB RAMP TYPES PER CALTRANS AND APWA STANDARD PLANS MAY ALSO BE USED <br /> AS DIRECTED BY THE ENGINEER. <br /> (TYP) 1.7"--- 11 <br /> O 0 O 0 O � <br /> O O O O O Q.9, <br /> 0 0 0 0 41 0 t.7 ' <br /> e"tt. ,0 0 0 0 n o t T YP) TRUNCATED ECG DOME DETAIL, <br /> BYO 0 0 0 041 '1 2% MAX. <br /> O./\O A O 01 DOMES TO BE .4 O.C. <br /> 0.9" DIA.—f "IN-LINE" STYLE - 1"FOR BORDER ON) <br /> (TYP1 F-P ,'1'S <br /> TRUNCATED DOME PATTERN GROOVING DETAIL, 4/ j'j j;-4 <br /> "PPR DAT 0 CITY OF SANTA ANA a ` s+ , <br /> SAl`rA ANA <br /> CITY ENGINEER PUBLIC WORKS AGENCY - .- <br /> DATE REVISION STD.PLAN <br /> CURB RAMP NUMBER <br /> CONSTRUCTION NOTES 1122 <br /> SHEET 3 OF 3/1 <br />