HomeMy WebLinkAbout2020-02-20 Draft Intersection Assessment
ADA Assessment
Big Basin Way-Saratoga Sunnyvale Rd
Quito Rd-Bucknall Rd
City of Saratoga
Prepared for:
City of Saratoga
Prepared By:
BKF Engineers
Walnut Creek, CA
Prepared By:
Norm Dyer, CASp 760
Project Number: 20181703
February 20, 2020
ADA Assessment
Big Basin Way-Saratoga Sunnyvale Rd
Quito Rd-Bucknall Rd
City of Saratoga
Table of Contents
Purpose 1
Scope of Work 1
How to Read this Assessment 2
Roads Assessed 2
Key Maps Part 1
Assessment Part 2
Photos Part 3
February 20, 2020
Purpose
The purpose of this Assessment is to review existing City park site and building
improvements relative to current Federal and State accessibility requirements.
The Federal requirements are found in the Americans with Disabilities Act Title II
Regulations dated September 15, 2010. The State requirements are located in
California Code of Regulations Title 24; 2016 California Building Code (CBC) at
Chapter 11B. While the Federal regulations include many facility requirements,
they also include program and employment rules which are beyond the scope
of this assessment. The Federal facility related requirements are found in the
2010 ADA Standards for Accessible Design (ADAS). Chapter 11B is modeled
after the 2010 ADAS and includes many California additions. For the purpose of
this Assessment, Chapter 11B of the 2016 CBC will be the Standard.
Scope of Work
Perform a site visit to two street intersections to observe existing site and
conditions in accordance with BKF’s proposal dated November 19, 2018. See
description of intersections below. The site visits were performed on November
6, 2019. An assessment was performed of site and building features relative to
the Standard. Measurements were obtained with the use of a “SmartLevel” and
a steel tape.
This Assessment is intended to identify features which do not meet the
Standard. While an attempt has been made to identify each feature which does
not meet the Standard, no warranty is expressed or implied that all were
discovered. For example, the Assessment includes measurement of pathway
slopes at various locations. While an attempt has been made to identify and
measure each condition which may not meet the Standard, it is beyond the
scope of this Assessment to measure each and every location.
It should be noted that in general, facilities are required to comply with the
requirements in effect on the day they were initially constructed. When an
alteration occurs, the alteration and certain paths of travel, must meet the most
recent requirements. This Assessment does not take date of construction or
alteration into account. As a result, it is possible that a more stringent Standard
than necessary for “compliance” with State and Federal ADA requirements have
been applied.
Page 1
How to Read this Assessment
The Assessment is organized into three parts.
1. Part one includes Key Maps which show the location of the various
features which do not meet the Standard.
2. Part two is the list of various site and building features (referenced by
number to the Key Maps and Photos) which do not meet the Standard
along with a reference to the 2016 CBC requirement and the actual
measured condition.
3. Part three includes photos of the features which do not meet the
Standard.
List of Intersections Assessed
1. Big Basin Way and Saratoga-Sunnyvale Rd. (all corners except SW)
2. Quito Rd and Bucknall Rd (NW and SW corners)
Page 2
Part 1 – Key Maps
Part 2 - Assessment
Item Location Category Sub-Category Requirement Measured or Observed Code Location Photo
1 900 Accessible Route Clear Width The clear width for walks and sidewalks shall be 48" clear minimum.Clear width of sidewalk is less than 48"11B-403.5.1(ex. 3)
Big Basin Way
and Saratoga-
Sunnyvale Rd 900
2 900 Curb Ramp Counter Slope
Counter slopes of adjoining gutters and road surfaces immediately adjacent to
and within 24 inches of the curb ramp shall not be steeper than 1:20. The
adjacent surfaces at transitions at curb ramps to walks, gutters, and streets
shall be at the same level.Counter slope greater than 5%11B-406.5.8
Big Basin Way
and Saratoga-
Sunnyvale Rd 900
3 900 Curb Ramp
Detectable
Warnings
On parallel curb ramps, detectable warnings shall be placed on the turning
space at the flush transition between the street and sidewalk. Detectable
warnings shall extend the full width of the turning space at the flush transition
between the street and the sidewalk less 2 inches maximum on each side.No detectable warnings provided 11B-406.5.12
Big Basin Way
and Saratoga-
Sunnyvale Rd 900
4 900
Curb Ramp -
Parallel Ramp Run
Running Slope shall be in-line with the direction of sidewalk travel and shall not
be steeper than 1:12 (8.33%)Running slope in excess of 8.33%11B-406.3.1
Big Basin Way
and Saratoga-
Sunnyvale Rd 900
5 900
Curb Ramp -
Parallel Turning Space
A turning space 48 inches minimum by 48 inches minimum shall be provided at
the bottom of the curb ramp. The slope of the turning space in all directions
shall be 1:48 maximum.No turning space provided 11B-406.3.2
Big Basin Way
and Saratoga-
Sunnyvale Rd 900
6 901 Curb Ramp Cross Slope The cross slope of curb ramps shall not be steeper than 1:48 (2.1%)Cross slope greater than 2.1%11B-406.5.7
Big Basin Way
and Saratoga-
Sunnyvale Rd 901
7 901 Curb Ramp
Detectable
Warnings
Detectable warnings at curb ramps shall extend 36 inches in the direction of
travel. Detectable warnings shall extend the full width of the ramp run less 2
inches maximum on each side, excluding any flared sides. Detectable warnings
shall be located so the edge nearest the curb is 6 inches minimum and 8 inches
maximum from the line at the face of the curb marking the transition between
the curb and the gutter, street or highway.No detectable warnings 11B-406.5.12
Big Basin Way
and Saratoga-
Sunnyvale Rd 901
8 901
Curb Ramp -
Diagonal Misc.
Diagonal curb ramps with flared sides shall have a segment of curb 24 inches
long minimum located on each side of the curb ramp and within the marked
crossing.0" measured 11B-406.5.10
Big Basin Way
and Saratoga-
Sunnyvale Rd 901
9 901
Curb Ramp -
Perpendicular Top Landing
The landing clear length shall be 48 inches minimum. The landing clear width
shall be at least as wide as the curb ramp, excluding any flared sides. The slope
of the landing in all directions shall be 1:48 max.Landing slope greater than 1:48 11B-406.5.3
Big Basin Way
and Saratoga-
Sunnyvale Rd 901
10 901 Curb Ramp Counter Slope
Counter slopes of adjoining gutters and road surfaces immediately adjacent to
and within 24 inches of the curb ramp shall not be steeper than 1:20. The
adjacent surfaces at transitions at curb ramps to walks, gutters, and streets
shall be at the same level.Counter slope greater than 5%11B-406.5.8
Big Basin Way
and Saratoga-
Sunnyvale Rd 901
11 902 Curb Ramp Cross Slope The cross slope of curb ramps shall not be steeper than 1:48 (2.1%)4.4% measured 11B-406.5.7
Big Basin Way
and Saratoga-
Sunnyvale Rd 902
ROADS
Page 1 of 3
Item Location Category Sub-Category Requirement Measured or Observed Code Location Photo
ROADS
12 902 Curb Ramp
Detectable
Warnings
Detectable warnings at curb ramps shall extend 36 inches in the direction of
travel. Detectable warnings shall extend the full width of the ramp run less 2
inches maximum on each side, excluding any flared sides. Detectable warnings
shall be located so the edge nearest the curb is 6 inches minimum and 8 inches
maximum from the line at the face of the curb marking the transition between
the curb and the gutter, street or highway.No detectable warnings 11B-406.5.12
Big Basin Way
and Saratoga-
Sunnyvale Rd 902
13 902
Curb Ramp -
Perpendicular Top Landing
The landing clear length shall be 48 inches minimum. The landing clear width
shall be at least as wide as the curb ramp, excluding any flared sides. The slope
of the landing in all directions shall be 1:48 max.5.8% measured 11B-406.5.3
Big Basin Way
and Saratoga-
Sunnyvale Rd 902
14 902 Curb Ramp Counter Slope
Counter slopes of adjoining gutters and road surfaces immediately adjacent to
and within 24 inches of the curb ramp shall not be steeper than 1:20. The
adjacent surfaces at transitions at curb ramps to walks, gutters, and streets
shall be at the same level.Counter slope greater than 5%11B-406.5.8
Big Basin Way
and Saratoga-
Sunnyvale Rd 902
15 910 Accessible Route Clear Width The clear width for walks and sidewalks shall be 48" clear minimum.Clear width of sidewalk less than 48"11B-403.5.1(ex. 3)Quito-Bucknall 910
16 910 Curb Ramp Counter Slope
Counter slopes of adjoining gutters and road surfaces immediately adjacent to
and within 24 inches of the curb ramp shall not be steeper than 1:20. The
adjacent surfaces at transitions at curb ramps to walks, gutters, and streets
shall be at the same level.Counter slope greater than 5%11B-406.5.8 Quito-Bucknall 910
17 910 Curb Ramp
Detectable
Warnings
On parallel curb ramps, detectable warnings shall be placed on the turning
space at the flush transition between the street and sidewalk. Detectable
warnings shall extend the full width of the turning space at the flush transition
between the street and the sidewalk less 2 inches maximum on each side.No detectable warnings provided 11B-406.5.12 Quito-Bucknall 910
18 910
Curb Ramp -
Parallel Ramp Run
Running Slope shall be in-line with the direction of sidewalk travel and shall not
be steeper than 1:12 (8.33%)Running slope in excess of 8.33%11B-406.3.1 Quito-Bucknall 910
19 910
Curb Ramp -
Parallel Turning Space
A turning space 48 inches minimum by 48 inches minimum shall be provided at
the bottom of the curb ramp. The slope of the turning space in all directions
shall be 1:48 maximum.No turning space provided 11B-406.3.2 Quito-Bucknall 910
20 911 Accessible Route Clear Width The clear width for walks and sidewalks shall be 48" clear minimum.Clear width of sidewalk less than 48"11B-403.5.1(ex. 3)Quito-Bucknall 911
21 911 Curb Ramp Counter Slope
Counter slopes of adjoining gutters and road surfaces immediately adjacent to
and within 24 inches of the curb ramp shall not be steeper than 1:20. The
adjacent surfaces at transitions at curb ramps to walks, gutters, and streets
shall be at the same level.Counter slope greater than 5%11B-406.5.8 Quito-Bucknall 911
22 911 Curb Ramp
Detectable
Warnings
On parallel curb ramps, detectable warnings shall be placed on the turning
space at the flush transition between the street and sidewalk. Detectable
warnings shall extend the full width of the turning space at the flush transition
between the street and the sidewalk less 2 inches maximum on each side.No detectable warnings provided 11B-406.5.12 Quito-Bucknall 911
23 911
Curb Ramp -
Parallel Ramp Run
Running Slope shall be in-line with the direction of sidewalk travel and shall not
be steeper than 1:12 (8.33%)Running slope in excess of 8.33%11B-406.3.1 Quito-Bucknall 911
Page 2 of 3
Item Location Category Sub-Category Requirement Measured or Observed Code Location Photo
ROADS
24 911
Curb Ramp -
Parallel Turning Space
A turning space 48 inches minimum by 48 inches minimum shall be provided at
the bottom of the curb ramp. The slope of the turning space in all directions
shall be 1:48 maximum.No turning space provided 11B-406.3.2 Quito-Bucknall 911
Page 3 of 3
Page 1 of 10
Part 3 - Photos
Page 2 of 10
900A
900B
Page 3 of 10
900C
900D
Page 4 of 10
901A
901B
Page 5 of 10
901C
901D
Page 6 of 10
902A
902B
Page 7 of 10
902C
902D
Page 8 of 10
902E
902F
Page 9 of 10
910A
910B
Page 10 of 10
911A
912A