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A
TRUNCATED DOME SPACING
SEE NOTE 3
WALKWAY
CURB RAMP
E — C
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B t D
TRUNCATED DOME
SECTION O
SEE STANDARD SPECIFICATIONS
FOR COLOR OF SURFACE
MIN.
MAX.
A
1.60"
2.40"
B
0.65"
—
C
0.45"
0 90"
D
0.9"
1.40"
E
0.2"
0.2"
TRUNCATED DOME DETAILS
W Y
❑ ¢
O m LANDING OFFSET
SEE NOTE 7
WIDTH OF
WALKWAY
DETECTABLE WARNING
SURFACE (DWS)
SEE NOTE 3
BACK OF CURB
SINGLE DIRECTION CURB RAMP
(GRADE BREAK BETWEEN CURB AND
LANDING s 5 FT. FROM BACK OF CURB)
(SEE NOTE 5)
CURB RAMP
WALKWAY
w Y LANDING
w
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BACK OF CURB -
SEE NOTE 2
SINGLE DIRECTION CURB RAMP
(GRADE BREAK BETWEEN CURB AND
LANDING > 5 FT. FROM BACK OF CURB)
(SEE NOTE 5)
WHEELCHAIR DIRECTION
OF TRAVEL
WALKWAY
CURB RAMP, LANDING, CUT -
THROUGH OR WALKWAY
SEE TRUNCATED DOME
DETAIL - THIS SHEET
BACK OF CURB
SEE NOTE 2
DETECTABLE WARNING
SURFACE (DWS)
SEE NOTE 3
2' - 0" MIN.
TYP. OF ALL
APPLICATIONS
CURB AND GUTTER 1 LANDING, CUT -THROUGH OR
WALKWAY
DETECTABLE WARNING SURFACE DETAIL
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BACK OF CURB
SEE NOTE 2
WALKWAY
CURB RAMP
FLARE
DETECTABLE WARNING
SURFACE (DWS)
SEE NOTE 3
WIDTH OF CURB RAMP
7TWIDTH OF PERPENDICULAR CURB RAMP
WALKWAY (SEE NOTE 6)
WIDTH OF CURB RAMP,
LANDING, OR WALKWAY
DETECTABLE WARNING
SURFACE (DWS)
SEE NOTE 3
DETECTABLE WARNING
SURFACE (DWS)
SEE NOTES 3 & 6
CURB RAMP CURB RAMP
WALKWAY � LANDING WALKWAY
DETECTABLE
SURFA
SEE NOT
WIDTH OF CUT -
THROUGH (TYP.)
i
NOTES
1. Permanent Detectable Warning Surfaces (DWS) shall extend the full width of the curb ramp,
landing, or other roadway entrance as applicable. Exception: If the Manufacturer of the
DWS requires a concrete border around the DWS, a variance of up to 2" (in) on each side
of the DWS is permitted.
2. Permanent Detectable Warning Surfaces (DWS) shall be placed on a minimum 4" (in)
thick concrete pad. The DWS panel shall be placed adjacent to the back of the curb and
with no more than a 2" (in) gap between the DWS and the back of the curb measured at
the center of the DWS panel. Exception: If the Manufacturer of the selected DWS requires
a concrete border around the DWS, a variance of up to 2" (in) from the back of the curb is
permitted (measured at the leading corners of the DWS panel).
3. The rows of truncated domes shall be aligned to be parallel to the direction of travel,
and perpendicular to the grade break at the back of curb.
4. If curb and gutter are not present, such as a shared -use path connection, the Detectable
Warning Surface shall be placed at the pavement edge.
5. See Standard Plans for sidewalk and curb ramp details.
6. If a curb ramp is required, the location of the Detectable Warning Surface must be at
the bottom of the ramp and within the required distance from the rail crossing.
7. When the grade break between the curb ramp and the landing is less than or equal to
5 ft. from the back of curb at all points, place the Detectable Warning Surface on the
bottom of the curb ramp directly above the grade break.
8. Glued or stick down Detectable Warning Surfaces are allowed only for temporary
work zone applications.
WIDTH OF CUT -THROUGH
(TYP.)
2'- 0"
MIN.
RB
2'-0„
MIN.
LEGEND
DIRECTION OF TRAVEL
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Aug 30, 2021
ETECTABLE WARNING