Design Information Bulletin 82 Caltrans ADA Project Delivery

Design Information Bulletin 82 Caltrans. ADA Project Delivery Office Anthony Ng April 27, 2021 1

DIB 82 -06 2

Other Federal Standards UFAS Uniform Federal Accessibility Standards ADAAG ADA Accessibility Guide 3

Differences Between Standards Clear Width PROWAG UFAS 48” 36” 4

Draft PROWAG Section 4. 3. 8(1) Running Slope 4

Draft PROWAG 5

Draft PROWAG DIB 82 -06 – Section 4. 3. 5 Cross Slope 6

Draft PROWAG SLIDE 7

DIB 82 -06 8

Draft PROWAG 9

DIB 82 -06 11

DIB 82 -06 12

Draft PROWAG - Grades Section 4. 3. 4 Where pedestrian access routes are contained within a street or highway right-of-way, the grade of pedestrian access routes shall not exceed the general grade established for the adjacent street or highway. Where pedestrian access routes are not contained within a street or highway right-of-way, the grade of pedestrian access routes shall be 5. 0% maximum. 13

Roadway Grade 14

Draft PROWAG Section 4. 1. 7 - Safe Harbor In order to use Safe Harbor provisions in a project, it must be verified and documented that the existing pedestrian feature that is being considered for reconstruction was constructed before March 15, 2012. 15

Safe Harbor And it currently meets the accessibility standards in ADAAG and UFAS. 16

Safe Harbor Requirements Curb Ramps Ø 36 in min width Ø Flush transition with adjoining surface Ø 8. 33% max running slope Ø 10. 0% max flare slope Ø 2. 0% max cross slope Ø 5. 0% max adjoining slope 17

Detectable Warning Surface 18

Detectable Warning Surface 19

Safe Harbor Requirements Clear Width Ø 36 in min width Ø Passing spaces every 200 ft if less than 60 in x 60 in Ø Can be reduced to 32 in for a length of no more than 24 in 20

Alterations Section 4. 1. 2 Resurfacing is an alteration that triggers the requirement to add curb ramps if it involves work on a street or roadway spanning from one intersection to another and includes overlays of additional material to the road surface, with or without milling. 21

Types of Alterations Addition of a new layer of asphalt Ø Ø Ø Micro-surfacing and thin lift overlays Ø Cape seals Ø In-place asphalt recycling Reconstruction Concrete pavement rehabilitation and reconstruction Ø Open-graded surface course Ø 22

Maintenance (Not an Alteration) Painting or striping lanes Ø Crack filling and sealing Ø Ø Scrub sealing Ø Joint crack seals Ø Joint repairs Jowel bar retrofit Ø Surface sealing Ø Ø Chip seals Ø Ø Slurry seals Ø Fog seals Spot high-friction treatments Ø Diamond grinding Ø Pavement patching 23

Maintenance Clarification by DOJ and FHWA – The combination of several maintenance treatments occurring at or near the same time may qualify as an alteration and would trigger the obligation to provide curb ramps. 24

Maintenance (Not an Alteration) Painting or striping lanes Ø Crack filling and sealing Ø Ø Surface sealing Ø Scrub sealing Ø Joint crack seals Ø Joint repairs Ø Dowel bar retrofit Spot high-friction treatments Ø Ø Chip seals Ø Slurry seals Ø Diamond grinding Ø Fog seals Ø Pavement patching 26

Types of Alterations Addition of a new layer of asphalt Ø Ø Ø Reconstruction Concrete pavement rehabilitation and reconstruction Ø Ø Ø Micro-surfacing and thin lift overlays Cape seals In-place asphalt recycling Open-graded surface course Ø 27

Alterations - Required Work Curb Ramps Where existing, nonstandard curb ramps will be required to be reconstructed to current standards. Ø Where missing, curb ramps are to be constructed where there are sidewalks or other pedestrian facilities. Ø 28

Alterations - Required Work Crosswalks: 2 R and 3 R work Grade 29

Alterations - Required Work Crosswalks: Pavement Reconstruction Cross Slope and Grade 30

Questions? 31