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CURB RAMP DETAILS A88A - California

COUNTYROUTEPOST MILESTOTAL PROFESSIONAL ENGINEERSTATE OF CALIFORNIAREGISTERED CIVIL STATE OF California OR ITS OFFICERSOR AGENTS SHALL NOT BE RESPONSIBLE FORCOPIES OF THIS PLAN OF CALIFORNIADEPARTMENT OF TRANSPORTATIONTHE ACCURACY OR COMPLETENESS OF SCANNED RAISED TRUNCATED DOMECURB ramp DETAILSRAISED TRUNCATED DOME PATTERN (IN-LINE)DETECTABLE WARNING SURFACEMin4 -2"EDGE OF SIDEWALKIF NECESSARY ATRETAINING CURBCASE BSIDEWALKEDGE OFFRONTBB CROSSWALK IF PROVIDED CROSSWALK IF PROVIDEDAAMaxTyp1:1 Typ1:1 Min4 -2"CASE DSIDEWALKEDGE OFFRONTAREAPLANTINGSIDEWALKEDGE OFFRONTMin4 -2" Min4 -2"CASE EAATyp6"AMaxCASE AMin4 -2"Typ6" Min5 -0"ASIDEWALKLANDINGLANDINGFLARERAMPFLARE SIDEWALKSIDEWALKSIDEWALKSIDEWALKDETAIL A MaxSECTION MaxT4 -2" MinSECTION B-BDepress entire sidewalk as requiredROUNDEDIF NECESSARYRETAINING Max4 -2" MinSECTION A-AROUNDEDTOP OF RAMPCCMaxMaxOF SIDEWALKFRONT EDGE CASE COF SIDEWALKNECESSARY AT EDGERETAINING curb IF Min5 -0" INSTALLATIONTYPICAL TWO-RA

The adjacent surfaces at transitions at curb ramps to walks, gutters, and in Case C and Case F. conform with longitudinal sidewalk slope adjacent to top of the ramp, except Side slope of ramp flares vary uniformly from a maximum of 9.0% at curb to in the Project Plans. The ramp portion of the curb ramp is a typical rectangle, unless modified ...

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Transcription of CURB RAMP DETAILS A88A - California

1 COUNTYROUTEPOST MILESTOTAL PROFESSIONAL ENGINEERSTATE OF CALIFORNIAREGISTERED CIVIL STATE OF California OR ITS OFFICERSOR AGENTS SHALL NOT BE RESPONSIBLE FORCOPIES OF THIS PLAN OF CALIFORNIADEPARTMENT OF TRANSPORTATIONTHE ACCURACY OR COMPLETENESS OF SCANNED RAISED TRUNCATED DOMECURB ramp DETAILSRAISED TRUNCATED DOME PATTERN (IN-LINE)DETECTABLE WARNING SURFACEMin4 -2"EDGE OF SIDEWALKIF NECESSARY ATRETAINING CURBCASE BSIDEWALKEDGE OFFRONTBB CROSSWALK IF PROVIDED CROSSWALK IF PROVIDEDAAMaxTyp1:1 Typ1:1 Min4 -2"CASE DSIDEWALKEDGE OFFRONTAREAPLANTINGSIDEWALKEDGE OFFRONTMin4 -2" Min4 -2"CASE EAATyp6"AMaxCASE AMin4 -2"Typ6" Min5 -0"ASIDEWALKLANDINGLANDINGFLARERAMPFLARE SIDEWALKSIDEWALKSIDEWALKSIDEWALKDETAIL A MaxSECTION MaxT4 -2" MinSECTION B-BDepress entire sidewalk as requiredROUNDEDIF NECESSARYRETAINING Max4 -2" MinSECTION A-AROUNDEDTOP OF RAMPCCMaxMaxOF SIDEWALKFRONT EDGE CASE COF SIDEWALKNECESSARY AT EDGERETAINING curb IF Min5 -0" INSTALLATIONTYPICAL TWO- ramp FLARE FLARE CROSSWALK IF PROVIDED CROSSWALK IF PROVIDEDMin4 -2"RAMPLANDINGSIDEWALKPROVIDE 2 -0" Min OF CURBWHERE A FLARED SIDE OCCURSMin OF CURBPROVIDE 2 -0"SIDE

2 OCCURSWHERE A FLAREDCORNER INSTALLATIONTYPICAL ONE-RAMPDETAIL BFLARERAMPFLAREG utter not shownAT MaxAT MaxAT MaxAT MaxAT MaxAT MaxAT MaxTyp6"SIDEWALKEDGE OFFRONTSEE NOTE 8 SEE NOTE 8 TOP OF RAMPAT Max MaxMin4 -2" MaxFLOWLINEGUTTERNOTE 8 SEEFLOWLINEGUTTERIF NECESSARYRETAINING CURBFLOWLINEGUTTER See Notes 1 and 3 See Note 1 SPACINGCENTER TO " Min AND " " 12-31-19 SIDEWALKSEE NOTE 10 SEE NOTE 10 SEE NOTE 10 See Note 10 NOTE 10 SEEOF SIDEWALKFRONT EDGEAREAPLANTINGMin4 -2"AREAPLANTINGCURBRETAININGSIDEWALKEDGE OFFRONTCASE FCASE GRAMP)SIDES OFCURB (BOTHRETAININGAATyp6"Typ6" -2" Min4 -2" MinSee Note 4AT -2"SEE NOTE 10 SEE NOTE 10 BASE " Min AND " MaxTOP " Min AND " MaxGUTTER PAN TRANSITIONAPPLIES TO ALL CASESTYPICAL GUTTER PANCURBPAVEMENTNOTE 9 SEENOTE 8 SEEDETECTABLEFRONT OFGUTTER INWARNINGNOTE 9 SEETRANSITIONTRANSITIONNOTES: 3.

3 10. 11. 1. 2. 4. 5. 6. 7. 8. 9. RETAINING CURB6" Min HIGHRETAINING CURB6" Min HIGHSEE NOTE 10 ramp SLOPECURB TO MATCH3 -0" Typ3 -0" Typ Max Max4 -2" MaxSIDES OF ramp ) curb ( Maxcovers while maintaining detectable warning width and warning surface may have to be cut to allow removal of utility owner prior to, or in conjunction with, curb ramp of the curb ramp will be relocated or adjusted to grade by theUtility pull boxes, manholes, vaults and all other utility facilities within the Sidewalk and ramp thickness, "T", shall be 3 " minimum. surfaces shall conform to the requirements in the Standarda maximum gap of 1 inch is allowed on each side of the ramp .

4 DetectableDetectable warning surfaces shall extend the full width of the ramp exceptwarning surface that extends the full width and 3 -0" depth of the modified in the Project Plans. curb ramps shall have a detectableThe detectable warning surface will be a rectangle as shown at back of curb , typical gutter pan slope per Standard Plan gutter pan slope from 1" of depth for each 2 -0" of width to matchGutter pan slope shall not exceed 1" of depth for each 2 -0" of within 24 inches of the curb ramp shall not be steeper than 1V:20H ( ).Counter slopes of adjoining gutters and road surfaces immediately adjacent to streets shall be at the same adjacent surfaces at transitions at curb ramps to walks, gutters, and in Case C and Case with longitudinal sidewalk slope adjacent to top of the ramp , exceptSide slope of ramp flares vary uniformly from a maximum of at curb to in the Project ramp portion of the curb ramp is a typical rectangle, unless modified Case G ramp shall be constructed in reversed site conditions dictate, the retaining curb side and the flared side of the be similar to that shown for Detail ramp is located in center of curb return.

5 Crosswalk configuration must longitudinally as in Case B or C or may be widened as in Case 4 -2" platform (landing) as shown in Case A, the sidewalk may be depressedIf distance from curb to back of sidewalk is too short to accommodate ramp conform to existing sidewalk, see Project dictate. For specific site condition configuration, including thethrough Case G curb ramps also may be used at mid block locations, as siteThe case of curb ramps used in Detail A do not have to be the same. Case Afor corner installations similar to those shown in Detail A and Detail site conditions dictate, Case A through Case G curb ramps may be used2018 STA N D ARD PLA N A88 ANO SCALE1-29-18A88 ALynn MowryRebeccaC54415150 May 31, 2018


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