Job Aids for ADA Curb Ramp Evaluation and Design
Contents
1. ty acte cut rereading al he Fa edo Fe merg Ora mi a meets Pea guia bees argh arga Ce O tes a Pali Fes ramo af UM ana Tem eem bork iim Rae read ori ide qaae sace d Fus rag Cite C oig vertical crt peed E Breaks ad Doors of a ramp ule io the duction has matsi device He cred fus nus laca Cinar Space 48 a E One 7 Tu camp seca aegemons placas verbal profile dows rl ile 7 Ora a Sur Shan curta ra amd ge tnah 0 Os 5 8 re the grada breaks where Pus curi rar conne ko y linde Bar Om me Fern a usted rar Ear rwn aree rovs lly inan al Tarta ot cami c mp da muon ar a d A1 Sg ent Ra te man mm Petras of money erica inre Tes e PIG eL 1773 Part ee2. ad Far back of scm dry ens uias thin curb IME 6 Sarg a ac ac nd pariorsg lot Eru 8 9 x 115m Paper B 5 x 11 0n 15 Ch Thes bris mes curb ramp Imo UL ja 26 Generating Curb Ramp iia m Took Advanced Window Help Documentation I i Cobb f sere M sn 2 i 2 comment IK E Homme Eu You now have an noes electronic PDF file documenting the 5 a Uma TET cum evaluation that E ge 21 consists ONLY of the E mente sheets actually used a 2 the evaluation for that particular curb ramp location in this case 3 sheets 4 FI Acostaibily Ca obe Ls arde dial cis IR amor Lus UE oir Fano ir Dry ioca lr kt OFF EET 2580 a ENGEL ikay i E ELI PIE LTT Jb Ren e 11 Pn ms du diam ors Fara D red iy anc oe eee Fe ol Fo acce iye r Fue uet M ge 7 taa He mm tcs Dese erm Pam TT Fr am kiri 1 Fag end um It is re
3. Popes Took Advanced Window reae dil Combine ka Collaborate m sere sm Form kgg Comment Curb Ramp 19 NOR 555 a TTT gt Documentation The form is now complete and ready to generate documentation of the evaluation The form can be AMI 1 gt N F yn curiali a hack nf printed with a m uus UP 21 Hi number of different ik commands Print Form button from any form sheet Print Icon pisi cni ak an ADF File gt Print command into complens Ctrl click sheet selection from pages bookmarks menu 25 Generating Curb Ramp Documentation To create electronic zu file documentation E oe FCP frets Drm of the evaluation mee Ou that can be printed to hard copy as needed Select PDF995 as your printer Adobe PDF for Adobe Pro users ae e amp utc Rotate and Center paper toute PDF page ure E Select the pages used in the evaluation for a typical curb ramp with one ramp and one landing like this walkthrough example that will be pages 1 2 8 Select OK to save the file to your hard drive ihren COE Mica racks Ear buw aiti 5
4. min Bm markings al marked crossings and mins ul ide of tha paralel wahicio travel Lane s Landing dows not connect te madway O ne A Landing does BELOA BEL LO O No __ J es cover f ulity object located in gutter where landing en Describe NA Lansing does nat correct t roadway Nu Yes Unknown i observed in dry conditions Ho Verified during precipitation can 3 Dimensions Noe For Parallel aed Combination Curb Ramos wiih ramps attach the appropriaia numbenng PT Cross slope 36 ew 3 2 mem Running slope 1 r Counter slope 9 Tr M PEE c umm oo Surface Hola For Paralel and Combination Curb Ramos with m ranpalandinge usa subsequent form sheets 51 light on dark dark on ight ated domas aligned perpendicular to the g grade break in the gutter Data Entry and Form Function C Todea e igid Investigator s The Reset Form button will clear ALL user entered data from every sheet in the form file Note that the of sheet pull down menu does not contain the number 1 That is because the last sheet page 8 of the form file should always be included with the evaluation The minimum number of sheets of
5. project purposes Note Applicable heading information that is entered into sheet 1 is automatically transferred to the other sheets in the form file 11 Data Entry and Form Function Elm Street Elm Street The Curb Ramp Location Table and the intersection schematic with radio buttons are to be used in tandem to identify the location of the curb ramp location being evaluated Checking the Other box indicates that the intersection leg is a high ADT commercial driveway or a private road Checking the N A box indicates that the intersection leg does not exist at this intersection such as at a T intersection Note The Curb Ramp Location information entered into sheet 1 is automatically transferred to the other sheets in the form file 12 Function Northbound 13 Data Entry and Form Function WestLeg Enema o oca treet pner pi v Other N A Curb Ramp General Information Curb Ramp Type x Perpendicular The Curb Ramp General Information section is used to indicate the type of curb ramp at the location which in turn sets the expectation of how many ramps landings need to be evaluated and thus how many total sheets should be included in the CREF 1 sheet per each ramp or landing the last sheet page 8 in the form file Aa ie gt Perpendicular Parallel Combination 14 Data Entry and Form Functio
6. 2 results either when a curb ramp is missing from a location OR when evaluating a ramp that is missing its required landing A typical curb ramp consisting of a ramp and a landing will have a total of 3 sheets pages 1 2 and 8 of the file As discussed previously curb ramp types that incorporate more ramps landings will require more sheets 1 sheet per ramp and 1 sheet per landing 10 Data Entry and Form Function Curb Ramp Evaluation Form Washington State 7 7 of Transportation Sheet lof h 1 Date of Investigation 05 16 2012 Project Title SR 999 Paving from Here to There Region Area Northwest Region Sno King Field Investigator s Anne R Andy Incorporated City No X Yes it yes Name of City Gotham Project Development Phase Curb Ramp Location Use Table Below and Indicate on Figure to the Right North Leg Local Street Other south Leg Local Street Other T West Leg SR Local Street Other Lc m Planning Scoping Design Existing Design Proposed Construction As Built The general project and site information to be entered into the form header should be readily available Incorporated City information could be relevant for maintenance responsibilities and application of design standards The Project Development Phase pull down is designed to encourage use of the CREF for a variety of
7. Dive rece Pare are So 1 profes do not contain angie poris Os rw Om T EAL dium ed Mill Ve diy mau tes ue mii m in dry pres etai di ard Pase Paral ral ark Mages mutuas gar qir gi ha agra marr Mr Cra age e Perpendicular Curb Ramp witwo Flanes Preparing for the field evaluation Lamp No P r CARO 1 SLOPE Pm AMS 1 Bip Parallel Curb Ramp Type on left Parallel Curb Ramp Type Single Direchor I Pm CHO SD jp ated City DN Yes uvas Name j Project Ds alow and indicate on Figure to the Fight _ Field data entry The CREF is designed to be legible in est Log 5 55 the field for field data entry ES The heading data can be entered later during final data entry back at the office 8 vere tl umi L Ramp 1 General CINE peas FE CH TER M ra Ru dU Ry dusgraem and use subsequent form sheets blo evaluate eachramplandngseparely ILLUD LI gs Dre MA Beyond the curb face Clear Space is provided 4 ft x 4 ft min j entirely wi
8. New WSDOT Developed Job Aids for ADA Curb Ramp Evaluation and Design Show and Tell Ron Franzen NWR Project Development Trainer amp Statewide ADA Trainer Regional ADA Coordination Team NWR Engineering Services Paula Hammond Steve Reinmuth Secretary of Transportation Chief of Staff NWPMA Annual Conference Vancouver WA October 25th 2012 Washington State Department of Transportation Ee va Introducing the CREF The Curb Ramp Evaluation Form CREF is a tool developed to ensure completeness of data collection when performing curb ramp investigations in the field The CREF also can generate standardized legible and professional looking hard copy and electronic documentation for scoping files project files design documentation and other databases The CREF is NOT a checklist of ADA curb ramp requirements Rather the CREF is designed to ensure that all data relevant to making a determination of compliance with state and federal accessibility standards is collected urb Ramp Evaluation Form prose prs Eg toca Stent rome ris Wen E ELE E 7 SR Elo EIA Nob For Paral and Rampa wih mipi ramp landings amach fe aar ai leri e ZED Ys en bot es E vex em ne sae E e TA Ewryond the curb faces Clear Space iB provided 4 amp x 4 fL eran erineb
9. amp File rae CAHD 1 Ap a Filet ol tpe Image Files pog Cancel 21 Data Entry and Form Function LANDING gt RUNNING SLOPE LANDING iu _ RAMP CROSS SLOPE Pu RUNNING SLOPE T PS FLARE SLOPE RAMP 17 M CROSS SLOPE _ amp WIDTH Select Image File Lock rc C3 Duval Mp Desktop JPG File File Size 651 Mairead 4 16 2010 6 38 Pa 5000 nat PS My Computer Aw aS SOOT a J runi P4150005 JPG v Sant Fiet of kasga Fikes pa oi pesa Lancel This project wall bring this curb ramp location into full compliance Solution Pending Design Analysis Curb Ramp Evaluation Form Data Entry and Form Function LANDING RUNNING SLOPE amp LENGTH FLARE SLOPE Data Entry and Form Function FLARE SLOPE _ Curb Ramp Numbering Diagram a H MEF documentation included in DDP Other justification included DDP This project will bring this curb ramp location into full compliance Solution Pending Design Analysis x _ Print Form 24 m lar uer Ipprogress pdt Hebe Fro Generating Yew Document
10. commended that you develop a unique project B 5 Purpura xgnunentpbnas ng sworhca proie no conem ponti T Ta nia s 3 F4 akvan De Tween ha curb raep and guter Bush mE t tes f m 1 specific file naming An Fa gae bei where rp conieci Vil Lance Brad ever Bos hn g Bet pin doer nr Pty cgi en Ra FET FE r system for cata Ogu ng abren GE or gb el on pote ot aep 1e iira ng emi the electronic T TT TATUR AAT documentation files Lama pnl wd LT am ana FUE Tie EF el Goer Cart Bares mitra IEEE TUE L ET wa Ex DTNTNT M 27 Curb Ramp Design Tools v6 Determining of Sharp Curves by Field AC Measurements pce Ja BD A Radus A v a n Curb Ramp 4 Design BC AC Tools v6 2 Note Points A and C may be any two points on the curve Horizontal Arc Lengths by Concentric Radii Lc RL Lerg 15ft max L 15ft max 4 ft min EU a CURB RAMP Left LANDING CURB RAMP Right Len er dad A em B007 Curb amp i a a Design Tools v6 Radius at Face of Curb Sidewa
11. cumstances As a rule of thumb grade g on the downhill side of the element should be designed as the steeper grade on the element 8 3 7 5 or less desirable for ramps and 2 1 5 or less desirable for landings allowing in most cases for flatter grades along the backside of the element grade and the uphill side of the element grade 9 2 Enter either an assumed 100 ft or actual elevation for E d R amp 3 If L and on concentric radii see the Radius Tools tab for a tool to assist in calculating the length Desi 4 IF either of grades 91 2 9 are downhill in the direction indicated by the arrows on the schematic Tools ve then the downhill grade s will need to be entered with a negative sign This will not typically be the case 5 Analert message of TWISTED indicates that two opposite sides of the element are sloped in opposite directions This situation should be carefully analyzed for potential drainage accessibility and or constructability issues Training available through Washington State Local Technical Assistance Program LTAP Training Program Pedestrian Accommodation Workshop 116 hours mex yir DE wo AME Ec Washington State V 4 Department of Transportation Questions
12. duced on Coincident Differing Gradients with Initial Vertical Offset e ela D 9 gp EXISTING PROPOSED ORIGIN ELEVATION DIFFERENCE Curb Ramp Design Tools v Low Side Left Warped Element Warped Element Low Side Left Low Side Right See Note 1 See Note 1 0 50 1 00 E 0 00 0 50 Elevation L23 See Note 3 4 3 See Note 3 02 3 See Note 4 02 3 See Note 4 Slope Perspective Viewed from BOC Ramp or Landing Landing 91 2 See Note 4 01 2 See Note 4 Low Side Right See Note 3 See Note 3 See Note 4 See Note 4 A 1 See Note 2 0 50 1 00 0 00 0 50 1 See Note 2 Roadway Gutter Slope Direction Slope Direction Elevation o 8 8 o Slope Perspective Viewed from BOC E gt Notes 1 As a general rule warping of pedestrian facility elements should be avoided if at all possible However when regrading of the roadway is beyond the scope of a project then warping an element to meet the existing gutter line profile is sometimes necessary The need for Maximum Extent Feasible documentation is often triggered by this scenario The purpose of these tools are to evaluate the extent of the warp and provide the ability to play what if with the design and tweak the grades to develop the most accessible design possible in these cir
13. i e to ensure that the correct landing data is attached to the correct ramp data Curb Ramp Evaluation Form Sheet Department at Transportation Region Area E Fel investigators L incorporated Clas T hone Project Develop gt am p Location Use Table Below and indicate on Figure to the Right KS wee Street Other C N A 7E General Accessibilty Non crc tha appropriate t m Matched by another curb rampfanding at the other end of the crosswalk Des No ar N A fa Ramp alignment meets the gutter grade break at a right angle MA Yes No 0 MA Rime dors not connect to roadway Does a F Circulation Path intersect tha al IK Yes frown b both sides Yes from one side ID Na Beyond the curb face Clear Space is provided 4 ft x 4 min j entirety within tha markings at marked d deno outside of the pes es Is the connection between the curb ramp and guiter flush re the grade breaks where the curb ramp connects to its landing Is there grating access cover or utility object located on the ramp Yes ig access Gower utility object located in gutter at base of ramp C Yes i Sanding water at base of ramp Cres Unknown observed in dry condition
14. ical measurements of the ramp landing that are needed to determine compliance with state and federal accessibility standards Enter Counter slope data with either a or a sign depending on whether the crosswalk slopes up away from the connection to the gutter or rather down away from the connection to the gutter If flares are not present or if counter slope evaluation is not applicable because the feature does not connect to the crosswalk then N A can be entered into these boxes 16 Data Entry and Form Function Ramp 1 Detectable Warning Surface Note For Parallel and Combination Curb Ramps with multiple ramps landings use subsequent form sheets to evaluate each ramp landing separately N A Ramp does not connect to roadway Detectable Warning Surface present X Yes Flare slope 2 4 6 Installed at back of curb Yes X No 2 inches from back of curb Contrast light on dark dark on light Yes Depth Ft 2 0 Width Ft 2 6 NO Color Federal Yellow E domes aligned perpendicular to the grade break in the gutter 17 Data Entry and Form Function 9 Washington State Curb Ramp Evaluation Form WF Department of Transportation E WR I Local Soot Other Ee Beyond the curb face Clear Space is provided 4 4 x 44 min entirely withut the crosswalk ma
15. lk Width excluding curb Ws FACE OF CURB Curb Width Back of Curb BOC to Face of Curb FOC ft L RR R 0 ft E 0 ft 0 degrees 0 degrees LBoc Legge _ Jt O ft OR 0 degrees 0 degrees 0 degrees LFoc f FOC LeFoc ft 0 ft 0 ft R degrees degrees A O degrees MATCH ROADWAY SLOPE CEMENT CONCRETE TRAFFIC CURB AND GUTTER Formulas of note Intersection of Grades Chasing L Length of Ramp Flare Landing or other Element ang Grade 2 existing r 91 E Height of curb or other initial elevation deficit b g9 L l Curb Ramp Design g Tools v6 Intersection of Grades Opposing L Length of Ramp Flare Landing o other Element 92 Existing Grade or 91 Height of curb or other initial elevation deficit H h 91 1 8 92 Curb Ramp Design Tools_v6 Intersection of Grades by Sidewalk Meander at Roadway Grade Chasing See Notes L P j t A Lu alt See Note 3 ral S See E ote 3 It See e Curb Ramp Design Tools v6 E Grade must be positive Lm f Lp ft Notes 1 On steep roadways where space is available this design solution can eliminate
16. n Ramp 1 General Accessibility Criteria Note For Parallel and Combination Curb Ramps with multiple ramps landings attach the appropriate numbering diagram and use subsequent form sheets to evaluate each ramp landing separately Curb ramp connection to the roadway completely within crosswalk markings x N A Unmarked Crossing Matched by another curb ramp landing at the other end of the crosswalk Ramp alignment meets the gutter grade break at a right angle Does a Pedestrian Circulation Path intersect the ramp at a right angle Yes from both sides Yes from one side No If Yes is a flare present on each intersected side of the ramp Ramp does not connect to roadway Beyond the curb face Clear Space is provided 4 ft x 4 ft min entirely within the crosswalk markings at marked crossings and wholly outside of the parallel vehicle travel lane s Standing water at base of ramp 15 Data Entry and Form Function Ramp 1 Slopes and Dimensions Note For Parallel and Combination Curb Ramps with multiple ramps landings attach the appropriate numbering diagram and use subsequent form sheets to evaluate each ramp landing separately Clear width Ft 3 0 Crossslope 42 Running slope 96 10 6 slope 96 4 5 Flare slope 1 14 2 The Slopes and Dimensions section for each ramp landing is used to input the phys
17. rkings at marked crovaings and wholly utside of the paralel vehicle travel neri Is the m nero 1 ft 40 Cross slope s Most grades and dimensions could be fixed if curb short wall installed at back of landing Data Entry and Form Function Curb Ramp Evaluation Form idicate on Figure to the Right pest lec Sree Local Street Other 19 Washington State Department of Transportation Shot AT ot 3 Date of Inwesigation os 2 Eroject SR Pang from Here to There Data Entry and Form xn E tool seer mer South 1 South Leg 5 9 Local Street Other N A i at Leg EEN Local Street elad Lus Function Northbound MEF documentation included in DOF Other justification included in OOP This project will bring this curb ramp location into full compliance solubon Pending Design Analyses Data Entry and Form Function X Local Street Ag I m Select Image File ud Look m 3 Humber E um l 2 B2 Y 55 AI Ea cn 30 Ya Fe uices Fils Sos 45 Modhed Sf7 2012 21 AM Et My Comput
18. s m No Verified during pescipitation event Ramp 1 Slopes and Dimensions Note For Parallel and Combnation Curb Ramps wth multiple ramps ardings attach the appropriate numbenng diagram and use subsequent torm sheets to evaluate each rampAanding separately Gear wem ed 3 Cross slope 96 tl anig slope 96 fa Ramp 1 M i 7 E N A Dp Detectable Waming Surface present C Yes No Installed at back of curb Yes C Ne Depth Ft a Contrasf light on di sl tighi on darkidark on ight 7 o Ors 0 comer Truncated domes aligned perpendicular tn the grade break in the gutter Yes No Flare slope 87 96 p Curb Ramp Evaluation Form vig Department ation Date of Investigation 2 ST E EE EE EE Northbound Field data entry Landing 81 General Accessibilty Criteria moe XEM Re Sa with enultiple ramp landing attach the appropriats and use subsequent form sheets 7 m evaluate each ramp landing _ Landing connection to the roadway completely within crosswalk markings A by another curb ramp landing at other end of the crosswalk E M P Beyond ihe curb Clear Space provided 4 A
19. sheets to evaluate each ramp landing separately N A Ramp do peso Detectable Waring Surace present installed at back of cub Truncated domes aligned perpendicular to the grade break in the gutter Preparing for the field evaluation Open the CREF file Estimate the number of curb ramps to be evaluated and print Name l nmhaseprintOTI411 101Konica6LP out the appropriate number of 9 Staus Ready both page 1 and page 2 of the file Type KONICA MINOLTA 3501290200 P5 Print Range Notes N Current view 1 Page 1 is for evaluating a ramp while page 2 is for evaluating a landing Thus a typical perpendicular curb ramp with landing requires two sheets for the evaluation 2 Ifthere Type A parallel curb ramps i e two ramps and a v Auke Rotate and Center landing to be evaluated print the a name times appropriate number of copies of page 3 to cover the additional ramps Print to 3 Similarly if there are any Print color as black combination curb ramps to be evaluated then extra copies of landing page 4 and ramp pages 3 amp 5 7 sheets will be needed Document 8 5 x 11 0in Paper 8 5 x 11 0in 121 Preparing for the field evaluation I Ln Ti 1 e Deal NOT iai dosi Rim T DR ARCET GS E JE Pus GG Tove s h
20. teria Note For Parallel and Combination Curb Ramps with multiple ramps tandings attach the appropriate numbering diagram and use subsequent form sheets to evaluate each ramp landing separately rrp connecten oe rose comp vitin same marg Yes WR kaane by another cub ranplandng ihe ober nd ie ve 1 Does a Pedestrian Crculaton Path intersect the ramp ata night ange Yes fom both sides Yes fom onesie If Yes is a flare present on each intersected side of the ramp rade breaks atop and bottom of he ramp are perpendicular e drecton of wheeled device ves No Beyond the curb face Clear Space is provided 4 ft x 4 ft min entirely within the crosswalk mives Nof markings at marked crossings and wholly outside of the parallel vehicle travel lane s N A Ramp does not connect to roadway Is the ramp s vertical alignment planar 1 its vertical profile does not contain angle point s grade breaks where carb ramp connects to ts ader te sh vere Grain acces corer o ty tie ented n ger tbe fane 1_1 Ramp 1 Slopes and Dimensions Note For Parallel and Combination Curb Ramps with multiple ramps landings attach the appropriate numbering diagram and use subsequent form sheets to evaluate each ramp landing separately Ramp 1 Detectable Waming Surface Note For Parallel and Combination Curb Flare slope 2 use subsequent form
21. the potentially hazardous grade break i e with an algebraic difference gt 13 and or skewed that could result if a 15 ft long ramp with a running slope steeper than the roadway grade was used This solution will reduce the algebraic difference of the grade break and enable the grade break to be at a right angle to the path 2 No credit can be taken toward achieving the required L distance for any segment of the meander that runs parallel to the roadway If the E value for the forward point on the landing happens to be wires at the back of the landing this will not typically be the case then the required L distance should be evaluated based on the roadway side of the sidewalk 4 If the corner of the grade break being used to evaluate the value is slightly offset from the existing sidewalk such as is shown in the diagram to the left then use the existing sidewalk elevation extended perpendicular to the roadway to determine E extended parallel to the roadway to determine E Walt Grade Calculators and Converters Percentage Grade Slope 1V Slope Ratio 1V Percentage Grade Basic Calculator b Curb Ramp Design Tools v6 Elevation Difference Produced on Coincident Differing Gradients D Jt ge 7o 9 EXISTING PROPOSED Curb Ramp Design ORIGIN ELEVATION 00 Tools_v6 DIFFERENCE Elevation Difference Pro
22. thin t tha the cron K dae n marked creme outside of the pum is e nele Is the connection ection between the curb ramp gutter flush the breaks where the curb ramp connects 10 its Cof oF utility object located in gutter at base of 1 eT E Sanding water at base of ramp CO res Unknown Le observed in dry conditions Verified during precipitation ever Ramp 1 Slopes and Dimensions Mote For and Combination Curb Ramps wih multipla mish de appropriate nurbenr diagram and use subsequent torm sheets 3o evaluate each rermpilanding separately Clear width car wath 3 _ crosssope o 3 e nins sope 1 4 inni 9 IS Flare slope 1196 Fath Ramp 1 Detectable Warning Surface More For Pamba and Combinason Curb Rampa with mullipie rampslamdings _ Flare slope 82 56 E sequent kam vuv each E N A TEE Waming Surface present JA No Installed at back of curb Yes Depth Ft Width FL light on d on darkidark on ight 7 2 Ortes Ne LT I7 Yes Ne Field data entry However it is very important that the location data for each evaluated ramp and landing be carefully entered in gt location data fields on each page This is to prevent mis matching of data back at the office
23. wither the ciotta markings at marked crossings and wholly outside of the parallel vehicle fave lanes Moo For Paralel and M a RING MEUM m aud ro o o utn uml ig ETC e e LUE MEME Deva eu agit on daia on sgg Eve E 24 domes aligned perpendicular ic the grade break In gullar ET Yes O No Print Form CREF User s Manual Curb Ramp Evaluation Form gii Curb Ramp Form version 2 pdf Adobe Acrobat Pro B File Edit View Document Comments Forms Tools Advanced Window Help x 3 j e Create dn Combine gta Collaborate ini Secure v Sign Forms By Mutimedia 7 Comment Jp m Sy 8 ec Hr Sticky Note amp EN En E Please Fill out the Following Form IF you are a Form author choose Distribute Form in the Forms menu to send it to your recipients Highlight Fields ESQ Curb Ramp Evaluation Form 79 Washington State 2 Dopartment of Transportation Sheet 1 of 274 Yes of City Use Table Below and Indicate on Figure to the Right Omer EVA ESR Local Street Street Other N A ESR Local Street Street Other 7 5 7 N A Curb Ramp General Information Single Curb Ramp serving two crosswalks aka Diagonal Curb Ramp Ramp 1 General Accessibility Cri
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