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Plans ' 1 a Advanced Control Systems (1,680sf 11-30-06) Pro Autotech w — A Electrobot ( 2,100 sf 8 -31 -08) m N (1,680sf M -T -M) . Bergh Masonry Screen Magic 4 , B (1,680sf 7 -31 -05) (2,100sf 1/31/07) i . Kevin Schrick A (1,680 7 -31 -07) — Vacant Custom V Machining 0 51 (1,680sf) (4,200 sf 12 -31 -07) o A Darcy Lawson CD (1,680 sf 8- 31-06) - Protect Glove k — a VACANT (800 sf . -9 (1,680 sf) 9 -30-05) A Advanced Shamrock w ,o, Workspace, Inc Supply Co. o - (1,680 sf 7 -31 -07) (3,400 sf 9 -30-05) ;';' d w 33 .. < KENCO w ?A:: R'z ^ .' °; C) (2,100 sf 10- 31 -05) N .4=' to Di p �, p ;::. 0, KENCO t ' (2,100 sf 10 -31 -05) on — y " ` ' V r , ' ;tf Total GLA 55,307 Square Feet - els?.:' Vacant space 9,207 Square Feet :`.. m" Percent Vacant 16.6% Aa ° g o - C arroll's 3 .. Import Service o ` • < (2,100 sf 12- 31-06) - — , — — ! $ � a. Dick Johnson '� F `< & Associates o p a (2,100 sf 9 -30-07) • 013 :t 0 Jij[11 F r Import Auto Clinic o rr +�: (2,100 sf 7 -31 -07) of i f ii 4 I I Quality Counts i ' (2,100sf 9 -30-07) 4 itti a S T _ Uncorked Enterprises g - a (2,100 sf 9 -30-08) Kenco (� Construction o �„ ( 0 4: < (2,100 sf 4- 30 -07) $:64 � 1v A — o r =° r' n D.C. Creations -. U lg gt§ e) a n WOO sf 5 -31 -07) d F ."7 ill' f >u Op °' & 2 1 1 1 rizo go o 1 II Ni III rg . ■ 1 , • - ° :. , �� - z} ,�c • 3 2006 E ' , / `� . '. ; rte is Q 0 � SIG • . '''.. -.. L C'err-.12:Hrt.-4. L. .-::-. ,i .. (.,,,,- „,_ ,e) .. (I , P4N`: �. _ • • y `_ • 111 . 1' . • _ r ,_ _ _: • I r} • vT � t M: , • 4 _ .■ . . . , ..] „- eV C. tZ • • - • • "� w r • • • • ?i r/ • 1 '°- c r-,�� . • ...,.. . • . _ . . .,, . .. ._ . _ __, •,...., ... . • • _ ._ Icei Zip -, ••• . ..■,,,, _ , . • . . . . . , • . , . .. , . . . ' . N ►n WN6 • Z X !� • = k s e4i.- G 4 I Z �° P T`�c -fly �o f�o -. ... ' • E.X1 �'` IN h - " C6w , c � Tt . j,- , • • • r • • • : ■ • • • • • d ;. • • • • • • - :. • • • • =z� . _ r - •.. +.-,. )' {.' _ "• i t' d . ' ' i ;t ' N' 1 `4r ' :_' - - . `- ., r. - -- _• ,•l ' �. =. • • • • • • • • • • THIS SHEET INCLUDED AT REQUEST OF STATE BUILDING CODES DIVISION: - - Flare slopes 10% for landings 4' or wider and 8.33% for _, • , ; landings between 3' and 4' m wide • . 5% A ~! Landing (L), New Constr. 4' min. ' � . Alterations 3' min. • 4 q ,e;: ' .;:i : : : .;:.. , • 4 ' Norm. _- :;:;. e s-0.02 • 3' Min: .��� Ate/ - • • PERPENDICULAR SIDEWALK RAMP DETAIL • • . (Use "Parallel or Combined Ramp Detail" ' when regd. landing cannot be obtained) • Gutter Gutter c LiP 5_ /0M - - ax• , Lip - ., RYR ) I • I+• -. 12' SECTION. A -A SECTION A -A WITH MONOLITHIC CURB & SIDEWALK • : o I . • • I • o • a • CURB RAMP • • ACCESSIBLE ROUTE '• . • d A G G G . ' .�i4 �i�i�i`. • . • • . n . • • .. 4 . • 440i+i . J • [--• - ll.., n o `�_ --2% Slope 1.--- i • • over entire a arking & aisle area K... �\ Vertical clearance . �0 17' • not less than 98' • over entire parking • & aisle area. 16 F 9' 8' F Outlaw Ha SuulnMS Cads, 11201 & MSS SW Nth Avow, lipid OR Me 400 .1521 skip 200 -15258 kbomMININI MINN MS he AMM MI MP NI M. MI /1.M rM twSr M MI INS r ■Mt Mwr MA/rr A • Cam MO M Nb I1 Mm MM MEW an I/ r l O 1rM MN pima Slow WAN, MIM MI In . 1111 DE Iftwob *MOW 'i) VI Q MoMMEIMMI M 11111 ti Er. Nom D sr _ --A IP ki Pk MN P M I 155. ss I 1 MI N Cams% lowit Was t il ‘ MOS ._.�.�.�.�.�.�. �.�. �.�.�. � Mid Ma. r ....w �' wy.ni .A►�{� M ! Famed I ` ''. 1 4 t I 4\ i k A 4::. (4% NM MI r rrr,� M INN ■ P.M MEW MD /IM . 1 4 spat. sus nail a k , .1 SW ISM Avenue ACCESSIBILITY transmission of coded signals across the standard telephone 1103.2.2.2 Width. Curb ramps shall not be less than 36 network. Text telephones include telecommunications display inches wide (914 mm), exclusive of the required side devices or telecommunications devices for the deaf (TDDs), slopes. text typewriters (TTYs) or computers. 1103.2.2.3 Side slopes of curb ramps. Curb ramps lo- TOWNHOUSE. A multistory dwelling unit in which one or cated where pedestrians must walk across the ramp, or more functions for living (kitchen, bathroom, living room, bed- where not protected by handrails or guardrails, shall have room) are located on a separate story. A townhouse is usually sloped sides. The maximum side slope shall be 1 unit ver- contiguous to one or more similar units and open on at least two tical in 12 units horizontal (8.33- percent slope); [see sides. ADAAG Figure 12 (a)]. TRANSIENT LODGING. Except for an owner - occupied es- Exception: Where the width of the level walking sur- tablishment renting not more than five rooms or inpatient med- face at the top of the ramp is 48 inches (1219 mm) or ical care facilities, a building, facility, or portion thereof, which greater, when measured parallel to the run of the curb contains sleeping accommodations to be used for short-term ramp, the maximum side slopes may be 1 unit vertical stays, generally less than one month. Transient lodging in in 10 units horizontal (10- percent slope). tended for short-term stays is considered a public accommoda- Curb ramps with returned curbs may be used where tion under ORS 447.210(11) and includes an inn, hotel, pedestrians would not normally walk across the ramp congregate residence (including homeless shelters) or other (see ADAAG Figure 12b). place of public lodging (ADAAG 3.5). 1103.2.2.4 Location. Built -up curb ramps shall be lo- UNISEX RESTROOM. A facility containing one of each cated so as not to project into vehicular ways or be lo- type of fixture (water closet, lavatory and optional bathing fa- cated within accessible parking spaces and aisles (see cility) with privacy lock and an occupied indicator. ADAAG Figure 13). VEHICULAR WAY. A route intended for vehicular traffic 1103.2.2.5 Obstructions. Curb ramps shall be located to such as a driveway or parking lot. comply with ORS 447.233(3). 1103.2.2.6 Location at marked crosswalks. Curb SECTION 1103 ramps at marked crosswalks shall be wholly contained S SIT ACCESSIBILITY, within the markings, excluding any sloped sides (see Figure 15). EXTERIOR ROUTES OF TRAVEL 1103.2.2.7 Surface. Curb ramps on accessible routes 1103.1 GeneraL At least one accessible route shall be provided .. shall have a firm, stable and slip - resistant surface. within the boundary of the site from public transportation stops, accessible parking spaces, passenger loading and drop off zones, 1103.2.3 Detectable warnings. and ublic streets or sidewalks to an accessible entry. try. 1103.2.3.1 Curb ramps. Curb ramps shall have detect - Exception: For sites where natural terrain or other unusual able warnings that shall extend the full width and depth property characteristics do not allow for an accessible route of the curb ramp, including the Hairs, complying with from the public way to the building, the point of vehicular Section 1109.16. debarkation may be substituted for the accessible entry to 1103.2.3.2 Vehicular areas and passenger loading the site. zones. Where an accessible route crosses or adjoins a ve- hicular way, where passenger loading zones are provided When more than one building or facility is located on a site, at and where there are no curbs, railings, or other elements least one accessible route shall be provided between accessible separating the pedestrian and vehicular areas detectable buildings and accessible site facilities. The accessible route shall by a person who has a severe vision impairment, the be the most practical direct route among accessible building en boundary between the areas shall be defined by a contin- tries, accessible site facilities and the accessible entry to the site. uous detectable warning prior to the vehicular way not 1103.2 Design and Construction. less than 36 inches wide (914 mm) complying with Sec - 1103.2.1 General. Accessibility required by this section tion 1109.16 (see ADAAG Figure 14). When the accessi- shall be designed and constructed in accordance with this ble route crosses a vehicular way, only the boundary of section and Sections 1107, 1108 and 1109. the areas at the entrance to and exit from the vehicular way need have detectable warnings. 1103.2.2 Curb ramps. 1103.2.4 Walks. 1103.2.2.1 Slope. Curb ramps shall have a maximum . 1103.2.4.1 Width. All walks on accessible routes shall slope of 1 unit vertical in 12 units horizontal (8.33 -per- be continuous with a minimum clear width complying cent slope). Transitions from ramps to walks, gutters, or with Section 1109.4.2. vehicular ways shall be flush and free of abrupt changes in height. Maximum slopes of adjoining gutters and road 1103.2.4.2 Height. There shall be a clear continuous surface immediately adjacent to the curb ramp or acces- minimum height complying with Section 1109.4.3. sible route shall not exceed 1 unit vertical in 20 units hor- 1103.2.4.3 Slope. The running slope shall not exceed 1 izontal (5 percent slope). unit vertical in 20 units horizontal (5- percent slope). 09S R 911f1A nocrarod C701 ID A I cCCn1 A I TV runt ACCESSIBILITY Cross slopes shall not exceed 1 unit vertical in 50 units horizontal (2- percent slope). (1) The Director of the Department of Consumer and Busi- Exce Lion: ness Services shall include in the state building code, as de- P Where site infeasibility precludes a run fined in ORS 455.010, a requirement that the number of Wing slope of 1 unit vertical in 20 units horizontal y accessible parking spaces specified in subsection (2) of this (5 percent slope) the least possible running slope section be provided for affected buildings subject to the state shall be provided. Walks with slopes in excess of 1 building g code and that the spaces be signed as required by unit vertical in 20 units horizontal (5- percent slope) ( ) subsection (2) of this section. Spaces may also be marked in shall comply with Section 1109.7, no case shall a ii.. walk that is art of an accessible route have a runrun a manner specified in the state building code. slope greater than 1 unit vertical in 12 units horizontal (2) (a) The number of accessible parking spaces shall be: (t .3 - percent s ope -- .r�a1 are not required on walks with a slope of 1 unit vertical in 20 units hori Total Parkin in Lot Required Minimum Number of zontal (5- percent slo Accessible S aces . t to 25 t pe) o r less 1103.2.4.4 Passing space. Walks less than 60 inches (1524 51 to so mm) in continuous width shall provide passing space at rea- 2 51 to 75 3 sonable intervals but not to exceed every 200 feet (60 960 76 to 100 mm) complying with Section 1109.2.1. Passin 4 g s pace m ay tot to 150 5 be provided at landings at building entrances or at the inter- 151 to 200 section of two walks: The passing space at the inte 6 of two walks shall have the minimum �uOn tot co 300 7 slope and a cross slope that does not exceed unitive running Sot co 400 8 50 units horizontal aot to 500 9 percent slope), t 501 to 1000 2 vent of total 1103.2.45 Surfaces. Surfaces shall be ( 2- f l firm stable and and over 20 _ 001 1 for each 100 over 1 000 slip - resistant complying with Section 1109.6. (b) In addition, one in every eight accessible spaces, but 1103.2.4.6 Grates. Grates shall comply with Section not less than one, shall be van accessible. A van accessible 1109.6.4. parking space shall be at least rune feet wide and shall have 1103.2.4.7 Separation. Walks paralleling vehicular an adjacent access aisle that is at least eight feet wide. ways shall be separated from vehicular ways by curbs, Vic) Accessible parking spaces shall be at least nine feet planted areas, railings, or other barriers between the pe- wide and s have an adjacent access aisle that is at least six feet wide destrian area and vehicular areas. Walks not separated . shall be defined by a continuous detectable warning that (d) The access aisle shall be located on the passenger side is 36 inches (914 mm) wide, of the parking space except that two adjacent accessible Separations shall comply with Sections 1109.5 and parking spaces may share a common access aisle. 1109.7. (e) A sign shall be posted for each accessible parking 1103.2.4.8 Protruding objects. Protruding objects shall space. The sign shall be clearly visible to a person parking not reduce the minimum clear width of the walk and shall in the space, shall be marked with the International Sym- comply with Section 1109.5. bol of Access and shall indicate that the spaces are re for persons with disled 1103.2.4.9 Islands. Islands that obstruct walks shall have Van ac accessible parking spacesshalh av an parking ona�ts. crossings cut through level with the walk or have curb marked "V ramps or other sloped areas at the sides and a level area 36 an Accessible" mounted below the sign. gn inches wide (914 mm) by 48 inches long (1219 mm) mini- (fl Accessible parking spaces and signs shall be designed mum in the part of the island between the ramps, in compliance with the standards set forth by the Oregon Transportation Commission in consultation with the Ore V V gon Disabilities Commission. 4\13 SECTION 1104 (3) No ramp or obstacle may extend into the parking space or PARKING FACILITIES the aisle, and curb cuts and ramps may not be situated in such 1104.1 Accessible parking required. Where parking is pro- vided accessory to an affected building accessible a way that they could be blocked by a legally parked vehicle. parking (4) Parking spaces required by this section shall be main - shall be provided, constructed, striped, signed and maintained as required by ORS 447.233, by this section, and by Sections tained so as to meet the requirements of this section at all 1104.2, 1104.4 and 1108.4.12. building and to meet the standards established by the state building code. ORS 4 47.233(1) through (7) are not a part of this code but facilitie sand buildings subject to the provisions of thi s sec s ah and are reproduced here for the reader's convenience: tion, and to do whatever is necessary to enforce the require- 447.233 Accessible parking space requirements; inspec- lion of spaces; remedy for violation. ments,including the maintenance requirements, of this section. Municipalities and counties may administer and en- force the requirements of this section in the mannerprovidbd • 2004 OREGON STRUCTURAL SPECIALTY CODE .,a r'. ACCESSIBILITY ranges specified in Section 1109.2, and not less than 36 level greater than 1 / 2 inch (12.7 mm) shall be accomplished inches (914 mm) above the floor. by means of a ramp meeting the requirements of Section 1109.7 [see ADAAG Figures 7 (c) and (d)]. Exceptions: 1109.4.6 Stairs. Stairs shall not be part of an accessible 1. Electrical and communications system receptacles on walls shall be mounted no less than 15 inches route (see Section 1108.1.1.4). (381 mm) above the floor. 1109.4.7 Islands. Any raised area within an accessible route 2. Toilet paper dispensers shall be mounted not less shall be cut through to maintain a level route or shall have than 19 inches (483 mm) to the point of service ramps, curb ramps or sloped walks at both sides and a level above the floor. area not less than 48 inches (1219 mm) long connecting the ramps or walks. 1109.3.4 Clear floor space. Clear floor space that allows a . forward or a side approach shall be provided at all controls 11095 Protruding objects. Any wall- or post- mounted object or hardware (see ADAAG Figures 5 and 6). with its leading edge between 27 inches (686 mm) and 80 inches (2032 mm) above the floor may project not more than 4 1109.4 Accessible route. inches (102 mm) into a corridor, walk or aisle. Any wall- or 1109.4.1 General. Accessible routes shall be designed and post- mounted projection greater than 4 inches (102 mm) shall constructed according to this section. Ramps in an accessi- extend to the floor. Any free - standing objects mounted on posts ble route shall comply with Section 1109.7. Elevators and or pylons may overhang a maximum of 12 inches (305 mm) be- platform lifts in an accessible route shall comply with Sec - tween 27 inches (686 mm) and 80 inches (2032 mm) above the tion 1108.3. Doors in an accessible route shall comply with floor. Protruding objects shall not reduce the dear width of an Section 1109.9. accessible route or maneuvering space [see ADAAG Figures 8 Protruding objects along an accessible route shall comply (a) through 8 (e)]. with Section 1109.5. Floor coverings and surface treatments 1109.6 Floor coverings and surface treatments. of an accessible route shall comply with Section 1109.6. 1109.6.1 General. All surfaces shall be firm, stable and slip 1109.4.2 Width. The minimum clear width of an accessible resistant. route shall be 36 inches (914 mm) except at doors (see Sec- 1109.6.2 Carpeting. Carpeting and floor mats in accessible lion 1109.9.2). Where an accessible route includes a areas shall be securely fastened to the underlying surface, 180 - degree turn around an obstruction that is less than 48 and provide a firm, stable, continuous and relatively smooth inches (1219 mm) wide, the clear width of the accessible surface. route around the obstruction shall be 42. inches (1067 mm) minimum [see ADAAG Figures 1, 7 (a) and 7 (b)]. 1109.6.3 Slip - resistant surfaces. Showers, locker rooms, swimming pools, spas and hot tub decks, toilet rooms, exte- Where an accessible route is less than 60 inches (1524 rior wallcways and other areas subject to wet conditions mm) wide, passing spaces at least 60 inches by 60 inches shall have slip resistant floors. (1524 mm by 1524 mm) shall be located at intervals not to exceed 200 feet (60 960 mm). A T- shaped intersection of 1109.6.4 Grates. Within an accessible route, grates shall two corridors or walks may be used as a passing space. have openings no more than ' / inch (12.7 mm) in one direc- Exception: The minimum width for single wheelchair tion. Grates having elongated openings shall be placed so passage may be 32 inches (813 mm) for a maximum dis- the long dimension is perpendicular to the dominant direc- tion of travel. The maximum vertical surface change shall be lance of 24 inches (610 mm). 1 / 8 inch (3.2 mm) [see ADAAG Figures 8 (g) and 8 (h)]. 1109.4.3 Height. Accessible routes shall have a clear height 1109.7 Ramps. of not less than 80 inches (2032 mm). Where the vertical clearance of an area adjoining an accessible route is less 1109.7.1 General. Ramps required to be accessible shall than 80 inches (2032 mm), but more than 27 inches (686 comply with Section 1010 and the provisions of this section mm), a continuous permanent barrier shall be installed to (see ADAAG Figure 16). prevent traffic into such areas of reduced clearance [see 1109.7.2 Slope and rise. The maximum slope of a ramp ADAAG Figure 8 (c -1)]. shall be 1 unit vertical in 12 units horizontal (8.33- percent 1109.4.4 Slope. An accessible route shall have a running slope). The maximum rise for any run shall be 30 inches slope not greater than 1 unit vertical in 12 units horizontal (762 mm) (see ADAAG Figure 16). (8.33- percent slope). An accessible route with a running 1109.7.3 Cross slopes. The cross slopes of a ramp shall be a slope greater than 1 unit vertical in 20 units horizontal maximum 1 unit vertical in 50 units horizontal (2- percent (5- percent slope) shall comply with Section 1109.7. Cross slope). slopes of an accessible route shall not exceed 1 unit vertical 1109.7.4 Width. The minimum clear width of a ramp shall in 50 units horizontal (2 percent slope). 1109.4.5 Changes in level. Accessible routes and accessi- not be less than 36 inches (914 mm) (see ADAAG Figure 17). ble spaces shall have continuous common floor or ramp sur- 1109.7.5 Landings. Ramps within the accessible route shall . faces. Abrupt changes in height greater than V, inch (6.4 have landings at the top and bottom, and at least one inter - mm) shall be beveled with a slope no greater than 1 unit ver- mediate landing for each 30 inches (762 mm) of rise. Land- , tical in 2 units horizontal (50- percent slope). Changes in ings shall be level and have a minimum dimension measured 2004 OREGON STRUCTURAL SPECIALTIT' CODE' 225R.22 ACCESSIBILITY in the direction of ramp run of not less than 60 inches 1524 mm). Where the ramp changes direction at a landing, 1109.83 Nosings. Stair nosings shall be flush and rounded landing shall be not less than60 inches by 60 inches �, (1524 to a radius of / -inch (12.7 mm) maximum. Rises shall be mm by 1524 mm). The width of any landing shall be not less sloped, or the underside of the nosing shall have an angle of than the width of the ramp. not less than 60 degrees from the horizontal. Nosings shall 1109.7.6 Handrails. Ramps having slopes steeper than l project no more than 1' / inches (38 mm) (see ADAAG Fig - unit vertical in 20 units horizontal (5- percent sloe shall ore 18 have handrails on both sides. Handrails shall be continuous, have a slip-resistant Slip resistance. Stair nosings and treads shall except they shall not be required at any point of access along have ip- resistant surface. 1109.8.5 Exter stairways. Exposed stairways and their the ramp. Handrails shall extend at least 12 inches (305 mm) beyond the top and bottom of any ramp segment (see Sec- approaches shall be constructed to prevent the accumulation tion 1109.10.11 and ADAAG Figure 17). of water on walking surfaces. Exception: Ramps having a rise less than or equal to 6 1109.8.6 Stairway handrails. Stairways shall have hand - inches (152 mm) or a run less than or equal to 72 inches rails on both sides of the stairs. Handrails shall comply with (1829 inches need not have handrails. Section 1109.10.11 and shall have the following features: 1109.7.7 Edge protection. Any portion of the edge of a 1. Handrails shall be continuous along both sides of the ramp and its associated landings that is more than 6 inches stairs. The inside handrail on switchback or dogleg (152 mm) above adjacent grade or floor shall be provided stairs shall always be continuous '(see ADAAG Fig- with edge protection in accordance with one of the follow - ores 19 (a) and (b)]. • ing (see ADAAG Figure 17): 2. If handrails are not continuous, they shall extend at 1. Curbs. Where used, curbs shall be continuous and be not less than 2 inches (51 mm) in height above the sur- least 12 inches (305 mm) beyond the top riser and at least 12 inches (305 mm) plus the width of one tread face of the ramp and landings. beyond the bottom riser. At the top, the extension shall be parallel with the floor or ground surface. At 2. Walls. Where used, walls shall be continuous. the bottom, the handrail shall continue to slope for a guard rails shall comply distance of the width of one tread from the bottom 3. Guard rails. Where used, with Section 1012, and may have a height as specified riser. The remainder of the extension shall be horizon- for handrails, except at landings. tal [see ADAAG Figures 19 (c) and (d)]. Handrail 4. Handrails. Where used, handrails shall comply with Section 1109.7.6 and shall have an intermediate rail 3. extensions shall comply with ADAAG Figure 19. The clear space between the handrails and the wall mounted 17 inches (432 mm) to 19 inches (483 mm) shall be 1'/ z above the ramp or landing surface. inches (38 mm). Exception: For routes adjoining vehicular ways or 4. posts, other construction elements or obstru by newel parking areas, edge protection is not required pro- 5. Top of handrail coons. vided the difference in grade is less than 8 inches between gripping surface shall inches (864 mm) and 38 inches s mounted (203 mm) or the difference is identified by a detect- ab v st t (965 mm) m able warning strip complying y m with Section 110916 p g 1109.16. above stair nosings. 6. Ends of handrails shall be returned to the floor, wall or 1109.7.8 Exterior ramps. Exposed ramps and their ap- post. proaches shall be constructed to prevent the accumulation of water on walking surfaces. 7. Handrails shall not rotate within their fittings. 1109.7.9 Slip resistance. Ramps on accessible routes shall 1109.9 Doors. have a slip- resistant surface. k\ 1109.9.1 General. Doors required to be accessible shall 1109.8 Stairways. V \, 1, 10 �� , comply with Section 1008 and provisions of this section. 1109.8.1 General. Stairways required to be accessible shall be considered to doo s s ects n, gates and turnstiles shall An comply with Section 1009 and provisions of this section. be provided adjacent to any turnstile or revolving door. (see ADAAG Where doorways or See Section 1012 for guardrail requirement gates have two independently gate endenttll door she Figure 19) py oppee rated d door leaves, then at least one leaf shall comply with this sec - 1109.8.2 Open risers. Open risers shall not be permitted. lion. Exceptions: 1109.9.2 Clear width. Doors shall be capable of opening so 1. Stairways in Group R, Division 2 apartment build- (813 mm) (see ADAAG Figure 24). not less than 32 inches ings may have open risers. I I 2. Stairways in day rooms serving second tier of cells Exception: Doors not requiring full user passage, such of Group I, Division 3 may have open risers. as shallow closets, may have a clear opening not less than 20 inches (508 mm). 2004 OREGON STRUCTURAL SPECIALTY CODE +