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i. RAMPS SHALL HAVE A 12" WIDE BORDER WITH "4' GROOVES APPROXIMATELY 34' O.C. <br />SEE GROOVING DETAIL. THE SURFACE OF THE RAMP SHALL HAVE A TRANSVERSE BROOMED <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 1S A FLOW BY CONDITION, USE FLARE 'A' AND 'B' <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.C. 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 (LIGHT -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 EQUAL 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' — <br />O O O O <br />O O O O <br />2 O O O O <br />•� 1.7„ <br />Tqs` O O O (TYP) <br />O �i O O <br />�O O DOMES TO BE <br />0.9" DIA. f "IN -LINE" STYLE <br />(TYP) <br />TRUNCATED DOME PATTERN <br />0 0.2„ <br />TRUNCATED DOME DETAIL <br />''11 ^ 2% MAX. <br />- <br />FOR BORDER <br />CITY OF SANTA ANA 0 <br />PUBLIC WORKS AGENCY <br />STD.PLAN <br />CURB RAMP NUMBER <br />CONSTRUCTION NOTES 1122 <br />SHEET 3 OF ; <br />