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STREET TREES:
(TEMPORARY SALES TRAILER) ®_ 2" CALIPER - PATMORE ASH
LOT #25 L,,.l - 2" CALIPER - ARISTOCRAT PEAR
NORTH NOTE
.7 SETBACK REQUIREMENTS: PROPERTY CORNER ELEVATIONS ARE VATI
FRONT (GARAGE): 20' (FROM P.L.) BASED UPON DESIGN GRADE ELEVATIONS
or b la
Contract respalsble for checking site plan
FRONT (PORCH): 15' (FROM P.L.) and notH'tjb deelgner of cagy errors or ombslons
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INTERIOR SIDE: 5' (FROM P.L.) prior to start of corntrvction. Also, plans and
SCALE specifications shall be approved by local
STREET SIDE: 10' (FROM P.L.) building authorities prior to start of costructkan.
1"=20' REAR: 15' (FROM P.L.) 8.0' PUBLIC UTILITY EASEMENT ALONG ANY
INTERIOR STREET FRONTAGE.
Imo.. 1 i Gilmo ne 1 all
WEST HILLS DEVELOPMENT L DC Planners ARBOR SUMMIT 3091
E ngineers
15500 SW JAY SIREET su rveyors SUBDIVISION
BEAWERTON, OREGON 97008 DESIGN CROUP LOT #25 ,, �„, a
(503) 841 -7342 20005 N.IX TANASBOURNE DR. WASHINGTON COUNTY, OREGON 1
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J P 30 $1PP25. 4/29/DS, DPW 1
MeyerD, Plotted: May 05, 2005 — 10: 26am, P: \Projects —LDD2 \3091 \dwg\ Engineering \PlotPlans \3091pp25 — SALES.dwg
into such areas of reduced clearance [see ADAAG underlying surface, and provide a firm, stable, J
Figure 8 (c -1)]. continuous and relatively smooth surface.
1109.4.4 Slope. An accessible route shall have a 1109.6.3 Slip— resistant surfaces. Showers, locker
running slope not greater than 1 unit vertical in 12 rooms, swimming pools, spas and hot tub decks,
units horizontal (8.33- percent slope). An accessible toilet rooms, exterior walkways and other areas
route with a running slope greater than 1 unit vertical subject to wet conditions shall have slip— resistant
in 20 units horizontal (5- percent slope) shall comply floors.
with Section 1109.7. Cross slopes of an accessible
route shall not exceed 1 unit vertical in 50 units 1109.6.4 Grates. Within an accessible route, grates
horizontal (2- percent slope). shall have openings no more than 1/2 inch (12.7
mm) in one direction. Grates having elongated
1109.4.5 Changes in level. Accessible routes and openings shall be placed so the long dimension is
accessible spaces shall have continuous common perpendicular to the dominant direction of travel.
floor or ramp surfaces. Abrupt changes in height The maximum vertical surface change shall be 1/8
greater than 1/4 inch (6.4 mm) shall be beveled with inch (3.2 mm) [see ADAAG Figures 8 (g) and 8 (h)].
a slope no greater than 1 unit vertical in 2 units
horizontal (50- percent slope). Changes in level 1109.7 Ramps.
greater than 1/2 inch (12.7 mm) shall be
accomplished by means of a ramp meeting the - 1109.7.1 General. Ramps required to be accessible
requirements of Section 1109.7 [see ADAAG Figures shall comply with Section 1010 and the provisions of
7 (c) and (d)]. this section (see ADAAG Figure 16).
1109.4.6 Stairs. Stairs shall not be part of an.
accessible route (see Section 1108.1.1.4). r 1109.7.2 Slope and rise. The maximum slope of a
ramp shall be 1 unit vertical in 12 units horizontal
1109.4.7 Islands. Any raised area within an (8.33- percent slope). The maximum rise for any run
accessible route shall be cut through to maintain a shall be 30 inches (762 mm) (see ADAAG Figure
level route or shall have ramps, curb ramps or sloped 16).
• walks at both sides and a level area not less than 48
inches (1219 mm) long connecting the ramps or ✓ 1109.7.3 Cross slopes. The cross slopes of a ramp
walks. shall be a maximum 1 unit vertical in 50 units
horizontal (2- percent slope).
1109.5 Protruding Objects. Any wall— or post —
mounted object with its leading edge between 27 x/1109.7.4 Width. The minimum clear width of a ramp
inches (686 mm) and 80 inches (2032 mm) above the shall not be less than 36 inches (914 mm) (see
floor may project not more than 4 inches (102 mm) ADAAG Figure 17).
into a corridor, walk or aisle.
71109.7.5 Landings. Ramps within the accessible
Any wall— or post— mounted projection greater than 4 route shall have landings at the top and bottom, and
inches (102 mm) shall extend to the floor. Any free— at least one intermediate landing for each 30 inches
standing objects mounted on posts or pylons may (762 mm) of rise. Landings shall be level and have a
overhang a maximum of 12 inches (305 mm) minimum dimension measured in the direction of
between 27 inches (686 mm) and 80 inches (2032 ramp run of not less than 60 inches (1524 mm).
mm) above the floor. Protruding objects shall not Where the ramp changes direction at a landing, the
reduce the clear width of an accessible route or landing shall be not less than60 inches by 60 inches
maneuvering space [see ADAAG Figures 8 (a) (1524 mm by 1524 mm). The width of any landing
through 8 (e)]. shall be not less than the width of the ramp.
1109.6 Floor Coverings and Surface Treatments. 1109.7.6 Handrails. Ramps having slopes steeper
than 1 unit vertical in 20 units horizontal (5- percent
1109.6.1 General. All surfaces shall be firm, stable slope) shall have handrails on both sides. Handrails
and slip resistant. shall be continuous, except they shall not be required
at any point of access along the ramp. Handrails
1109.6.2 Carpeting. Carpeting and floor mats in shall extend at least 12 inches (305 mm) beyond the
accessible areas shall be securely fastened to the
2004 OREGON STRUCTURAL SPECIALTY CODE
Correlated to 2003 International Building Code Correlated Page Number 27
top and bottom of any ramp segment (see Section 2. Stairways in day rooms serving second tier of
1109.10.11 and ADAAG Figure 17). cells of Group I, Division 3 may have open risers.
Exception: Ramps having a rise less than or equal to 1109.8.3 Nosings. Stair nosings shall be flush and
6 inches (152 mm) or a run less than or equal to 72 rounded to a radius of 1/2 —inch (12.7 mm)
inches (1829 mm) need not have handrails. maximum. Risers shall be sloped, or the underside of
the nosing shall have an angle of not less than 60
1109.7.7 Edge Protection. Any portion of the edge of degrees from the horizontal. Nosings shall project no
a ramp and its associated landings that is more than 6 more than 11/2 inches (38 mm) (see ADAAG Figure
inches (152 mm) above adjacent grade or floor shall 18).
be provided with edge protection in accordance with
one of the following (see ADAAG Figure 17): 1109.8.4 Slip resistance. Stair nosings and treads
shall have a slip— resistant surface.
1. Curbs. Where used, curbs shall be continuous and
be not less than 2 inches (51 mm) in height above the 1109.8.5 Exterior stairways. Exposed stairways and
surface of the ramp and landings. their approaches shall be constructed to prevent the
accumulation of water on walking surfaces.
2. Walls. Where used, walls shall be continuous.
1109.8.6 Stairway handrails. Stairways shall have
3. Guard rails. Where used, guard rails shall comply handrails on both sides of the stairs. Handrails shall
with Section 1012, and may have a height as comply with Section 1109.10.11 and shall have the
specified for handrails, except at landings. following features:
4. Handrails. Where used, handrails shall comply
with Section 1109.7.6 and shall have an intermediate 1. Handrails shall be continuous along both sides of
rail mounted 17 inches (432 mm) to 19 inches (483 the stairs. The inside handrail on switchback or
mm) above the ramp or landing surface. dogleg stairs shall always be `continuous [see
ADAAG Figures 19 (a) and (b)).
Exception: For routes adjoining vehicular ways or
parking areas, edge protection is not required 2. If handrails are not continuous, they shall extend
provided the difference in grade is less than 8 inches at least 12 inches (305 mm) beyond the top riser and
(203 mm) or the difference is identified by a at least 12 inches (305 mm) plus the width of one
detectable warning strip complying with Section tread beyond the bottom riser. At the top, the
1109.16. extension shall be parallel with the floor or ground
� surface. At the bottom, the handrail shall continue to
✓ 1 109.7.8 Exterior ramps. Exposed ramps and their slope for a distance of the width of one tread from
approaches shall be constructed to prevent the the bottom riser. The remainder of the extension
accumulation of water on walking surfaces. shall be horizontal [see ADAAG Figures 19 (c) and
(d)]. Handrail extensions shall comply with ADAAG
/1109.7.9 Slip resistance. Ramps on accessible routes Figure 19.
shall have a slip— resistant surface.
3. The clear space between the handrails and the wall
1109.8 Stairways. shall be 11/2 inches (38 mm).
1109.8.1 General. Stairways required to be accessible 4. Gripping surfaces shall be uninterrupted by newel
shall comply with Section 1009 and provisions of this posts, other construction elements or obstructions.
section. See Section 1012 for guardrail requirements 5. Top of handrail gripping surface shall be mounted
(see ADAAG Figure 19). between 34 inches (864 mm) and 38 inches (965
mm) above stair nosings.
1109.8.2 Open risers. Open risers shall not be
permitted. 6. Ends of handrails shall be returned to the floor,
wall or post.
Exceptions:
1. Stairways in Group R, Division 2 apartment 7. Handrails shall not rotate within their fittings.
buildings may have open risers.
1109.9 Doors.
2004 OREGON STRUCTURAL SPECIALTY CODE
Con elated to 2003 International Building Code Correlated Page Number 28