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HomeMy WebLinkAbout12-07-2017 Planning and Zoning Commission4 .® } I Iowa City r Planning & Zoning Commission ` Formal Meeting Thursday, December 7, 2017 7:00 PM Emma Harvat Hall - City Hall Rse ;;sRM44 L R9 �' x f = KII `. R, zo r v CC2 ell 1 �1 r, Department of Neighborhood ., ` and ®,�'IT 1 Development Services CITY OF IOWA CITY ' UNESCO CITY OF LITERATURE b E PLANNING AND ZONING COMMISSION Thursday, December 7, 2017 - 7:00 PM Formal Meeting Emma Harvat Hall Iowa City City Hall 410 E. Washington Street AGENDA: A. Call to Order B. Roll Call C. Public Discussion of Any Item Not on the Agenda D. Rezonong Item Discussion of an application submitted by Iowa City Community School District for a Sensitive Areas Development Plan (rezoning) to allow modification of a protected slope for a proposed addition to be constructed on the east side of the school building located at 300 Teeters Court. (REZ17-00016) E. Consideration of Meeting Minutes: November 2, 2017 F. Planning & Zoning Information G. Adjournment If you will need disability -related accommodations in order to participate in this meeting, please contact Bob Milko, Urban Planning, at 319-356-5240 or at bob-miklo@iowa-city.org. Early requests are strongly encouraged to allow sufficient time to meet your access needs. Upcoming Planning & Zoning Commission Meetings Formal: December 21 / January 41 January 18 Informal: Scheduled as needed. STAFF REPORT To: Planning & Zoning Commission Prepared by: Sarah Walz Item: REZ17-00016 Date: December 7, 2017 Lincoln Elementary Addition GENERAL INFORMATION: Applicant: Iowa City Community School District 1725 North Dodge Street Iowa City, IA 52245 Contact: Luke Newton MMS Engineering 1917 S. Gilbert Street Iowa City IA 52240 Requested Action: Rezoning - Sensitive Areas Development Plan approval Purpose: To reduce the buffer requirements; to allow development within an area containing "altered protected slopes" for an addition to the elementary school Location: 300 Teeters Court Size: 3.6 acres Existing Land Use and Zoning: Elementary school; P-1 Surrounding Land Use and Zoning: Surrounding properties are all zoned RS-5 and developed with single-family residential; property to the northwest, is a fraternal group living use (nonconforming). Comprehensive Plan: The Comprehensive Plan identifies this area as appropriate for a school or other institutional use. File Date: October 26, 2017 45 Day Limitation Period: December 10, 2017 BACKGROUND INFORMATION: The Lincoln Elementary School property consists of approximately 3.6 acres with frontage on four streets: Teeters Court, Rider Street, Lee Street and River Street (see exhibit 1). The existing building sits at the north end of Teeters Court and atop a hillside with 30 feet of elevation change between the back (east side) of the existing building and the lower parking lot accessed from Rider Street. The steep hillside, which runs north to south through the northern half of the property, is an unused portion of what is a relatively small school site (by ICCSD standards) and presents a challenge to development. The original school building, constructed in 1926, has been added onto five times over the intervening decades (see exhibit 2). These additions extended the building further to the south and east. Eight parking spaces are currently provided near the front entrance (an adjacent parking area, located on the west side of Teeters Court serves another property —the medical fraternity). An additional parking area with 28 spaces was constructed off Rider Street in the late 1980s. This portion of the property is not readily accessible to the school building —the rear entrance is accessed via a 55-step staircase built into the slope. As part of a district wide facilities plan, the Iowa City Community School District (ICCSD) proposes a complete renovation of the existing school building and the construction of a major new addition that will provide space for a new gym and cafeteria, modern kitchen, media center extension, restrooms, a dedicated office and storage area for the before- and after -school program, and an ADA accessible (at -grade) entrance from River Street (see exhibits 3- 7).The proposed plan also provides an expanded parking area. The proposed addition and expanded parking area on River Street attempts to address several shortcomings of the school site: Limited ADA access: The proposed site plan preserves limited level outdoor play space; approximately 1.0 acre on the southern portion of the site is preserved as playground. Provides ADA accessible entrances from both Teeters Court and River Street Constrained bus and vehicle circulation: Buses currently drop off students on Rider Street and turn around in Black Springs Circle. New entrance off River Street will allow buses access and turn around adjacent to the school entrance. The applicant has used the "Good Neighbor Policy", hosting a neighborhood meeting and discussions with area residents on November 8 at Lincoln Elementary. ANALYSIS: The applicant is requesting a Planned Development rezoning for a Sensitive Areas Development Plan in order to construct the school addition on a portion of the property that contains regulated sensitive features. A Level II Sensitive Areas Review, a type of planned development, is required due to proposed disturbance of steep, critical, and previously altered protected slopes and a request to reduce a required wetland buffer. General Planned Development Approval Criteria Applications for Planned Development Re -zonings are reviewed for compliance with the following standards according to Article 14-3A of the Iowa City Zoning Ordinance. 1. The density and design of the Planned Development will be compatible with and/or complementary to adjacent development in terms of land use, building mass and scale, relative amount of open space, traffic circulation and general layout. Land uses proposed and general layout -The proposed addition to the Lincoln Elementary School is part of the Iowa City Community School District's 10-year Facilities Master Plan. It is designed to bring equitable learning spaces to all buildings in the district, improving the structure and amenities of the District's older buildings while preserving the historic qualities of those structures. The design of the proposed addition provides required ADA accessibility, classroom space, and new art, music, and gymnasium space. The location of the addition within the property also preserves ADA accessible playground area to the south of the school building and opens up potential for accessible use of the northern portion of the property along Rider Street for additional outdoor uses. The presence of the school is viewed as an essential anchor to the surrounding neighborhood and the applicant has held numerous public meetings announcing plans to expand the school building. Mass and Scale - By its very nature a school building and the proposed addition with be of a different scale and mass than surrounding single-family housing. However, the proposed addition attempts to integrate the building within the surrounding landscape. The new addition maintains the current roof height and is setback more than 140 feet from its east property line (Lee Street frontage) and 37 feet from the rear of the lot of the single-family property at 225 Lee Street, where the addition will replace a "temporary" classroom Open space - The proposed addition preserves roughly an acre open space for playground use on the south side of the property along Teeters Court and Rider Street. Playgrounds also serve as neighborhood park space when school is not in session. Traffic circulation - Currently buses pick up and drop off along Rider Street, which has a pavement width of 24-feet, and turn around on Black Springs Circle. Parking and turn around on Teeter Court (another 25-foot street) are quite limited. The addition makes possible an ADA accessible entrance from the east side of the school and provides an expanded parking area off of River Street. In staffs view, this will improve traffic circulation for pick up and drop off at the school, allowing buses more immediate access to the school building and to load and unload within the parking area rather than on street. 2. The development will not overburden existing streets and utilities. City sewer and water are already available to this property. Capacity is adequate to accommodate development of the addition. Onsite storm water management is required for any expansion of impermeable surface. The applicant currently proposes to underground storage beneath the parking area, however underground tanks may not be installed over sanitary sewer lines as currently shown. 3. The development will not adversely affect views, light and air, property values and privacy of neighboring properties any more than would a conventional development. While the proposed development will be a significant change to the site, staff believes that the proposed development is not a significant departure with regard to views, light and air, property values and privacy of surrounding single-family properties and extends the life of a neighborhood school, which is viewed as a vital institutional anchor for residents of the neighborhood. 4. The combination of land uses and building types and any variation from the underlying zoning requirements or from City street standards will be in the public interest in harmony with the purposes of this Title, and with other building regulations of the City. All planned developments must comply with all the applicable requirements and standards of the underlying zoning district and the subdivision regulations, unless specifically waived or modified through the planned development process. Variations to the dimensional requirements of the underlying base zone and subdivision regulations are allowed: • to facilitate the provision of desired neighborhood amenities or open space; • to preserve or protect natural, historic, or cultural features; • to achieve compatibility with surrounding development; or • to create a distinctive or innovative neighborhood environment for area residents. The decision to renovate and expand Lincoln Elementary is the culmination of multi- year planning process that encompassed significant public input and, most recently, a district wide vote that approved a bond for a 10-year facilities master plan. Staff believes that maintaining Lincoln Elementary as a viable neighborhood school is a public good that is widely supported within the Iowa City community and the school district. Level II Sensitive Areas Review The applicant has applied for approval of a Sensitive Areas Development, a type of planned development. The purpose of the Sensitive Areas Ordinance is to permit and define the reasonable use of properties that contain sensitive environmental features and natural resources, and allowing reasonable development while protecting these resources from damage. The following paragraphs describe the impact this development will have on the sensitive features of this site (see Sensitive Areas OPD plan). Steep. Critical, and Protected Slopes-- The purpose of regulating development on and near steep slopes is to: 1. Promote safety in the design and construction of developments; 2. Minimize flooding, landslides and mudslides; 3. Minimize soil instability, erosion and downstream siltation; and 4. Preserve the scenic character of hillside areas, particularly wooded hillsides. The submitted sensitive areas site plan shows that the northernmost half of the school addition and a portion of the expanded parking area extending into a sensitive slope and required buffer area. The development activity will disturb a significant portion of the steep, critical, and protected slopes: 28% of the steep slopes; 63% of the critical slopes; and 32% of the protected slopes. The sensitive areas ordinance requires that disturbance of steep and critical slopes be minimized and sets a maximum of 35% for critical slope disturbance with administrative staff approval. Disturbance beyond this threshold is proposed, which has triggered the requirement of this Level II Sensitive Areas Review with Planning and Zoning Commission review and City Council approval required. Development activity is not allowed on protected slopes or within the 50-foot buffer required around protected slopes, unless the slopes were previously humanly altered. In addition, disturbance of altered protected slopes or a reduction of a protected slope buffer may only be approved if a geologist or professional engineer demonstrates to the satisfaction of the City that the proposed development activity can and will be designed to eliminate hazards and will not undermine the stability of the slope or the buffer area. The applicant has indicated that the slope located between the building and the parking area has been humanly altered as various additions and building/site improvements were made over time and is requesting permission to encroach into protected slope. The applicant has submitted evidence to support this assessment. A topographic survey performed for the applicant earlier this year indicates that the that the hillside has a fairly consistent percentage of slope from top to bottom along its length. The majority of the slope meets the classification of critical slope (between 25%-40%) with the top of back and toe of the slope being less steep and below the threshold of "critical" slope. The slope also has a very consistent shape at its toe, sloping from south to north. The attached illustrations provided by the applicant show the changes in the slope and suggest that the construction of the steps along the slope the parking lot cut into the hillside, creating a steeper slope in this area. Moreover, a stormwater drainage pipe running from the exiting building northeast to the parking area is buried underground within this slope. The School District has contracted with a geotechnical engineer to perform and analyze soil borings on the hillside, however because the changes to the slope involved grading rather than fill, it is likely the borings will be inconclusive (see exhibit 8: Altered Slopes memo and supporting documents). It is anticipated that the new school addition will be supported on shallow concrete spread footings. The spread footings will extend to frost depth at 42 inches below grade. The proposed addition will connect to the east side of the existing school building, with the main level floor matching the existing building floor elevation. The addition's lower level will exit to grade of the east side of the addition approximately 30 feet lower than the existing school building main level. Due to the depth of excavation needed to construct the addition, the addition incorporates an earth retention system within the foundation wall system. The proposed system includes soldier piles with tiebacks that anchor the foundation wall into the existing ground slope. Certification by a licensed structural engineer will be required at the time of building permit application to ensure the stability of the building. Three mature oak trees and several evergreens located near the proposed addition will be removed as part of the project. The applicant is proposing to replace these with 10 new native trees —white, red, and bur oaks. New trees currently shown located within the parking area may need to be relocated away from easement for sanitary and storm sewers. There is ample space around the parking area perimeter to locate required parking area shade trees. Mature trees to the east and southeast of the addition, along the abutting residential properties, will be preserved. A tree protection plan should be submitted and approved at the time of the final OPD plan. The submitted landscape plan shows that the applicant will meet the S2 (low shrub) screening requirement along the north and east perimeter of the parking area. Storm water management: Stormwater management will be handled on site with underground storage located beneath the parking area. City engineers have indicated that the underground structure may not sit overtop public utilities —sanitary sewer. SUMMARY: Staff believes there is compelling evidence that the hillside to the east of the existing school building has been humanly altered over time with various additions and improvements to the school site. While the proposed plan does call for substantial disturbance (excavation and grading) to a sensitive slope, the school building is being engineered within the hillside to prevent hazards, such as erosion, and the site plan shows replacement of native trees that have long been a part of the character of this unusual school site. The planned upgrades to the existing school preserve limited outdoor play space, achieve ADA accessibility to all portions of the building and property, and improve traffic circulation. In doing so, the plan extends the life of one of Iowa City's oldest schools within a walkable neighborhood context and is therefore in the public interest and fulfills one of the goals of Iowa City's Comprehensive Plan. STAFF RECOMMENDATION: Staff recommends approval of REZ17-000016, a Sensitive Areas Development Plan subject to the following conditions: Substantial compliance with the development plan submitted. Establish easements for the stormwater management area. Establish any easements not currently existing for storm sewer and sanitary sewer. Certification by a licensed structural engineer will be required at the time of building permit application to ensure the stability of the building. DEFICIENCIES AND DISCREPANCIES: 1. Final soil report from Terracon required. 2. Technical discrepancies and deficiencies as noted by the City Engineer and water department: a. Provide stormwater calculations. b. An easement is needed for stormwater management area. c. The underground detention chambers/stormwater management area cannot be over the City's sanitary sewer d. Easements to be provided for the City's storm sewer and sanitary sewer that run thru the property. e. Underground detention chambers need to be outside the easement for the City's storm sewer. f. Trees may not be located in easements for underground detention chambers, storm sewer, or sanitary sewer (Trees in parking lot islands). ATTACHMENTS: 1. Location Map 2. Preliminary Plat and Sensitive Areas Development Plan 3. Supporting documents (exhibits) and statements from the applicant Approved by: Tracy Hights @ Abtlng Director Department of Neighborhood and Development Services Ilan -1111111111 lam—.11 o oil li &s JillI!i ll m 6� a1=� (L F- z w 0 z w o co z �— w — 0.1 � w Lu rn Z 0 9 Z 0 w (no m C) gig na z (1) <Z (D J z F 9 1 0 LU Em f k1g, z03 w w o, 4r� 3 xz < 8 W�90 L� O .z '0 e 5 its„§§ LLI Ld J Q0�� ,.Z ® �- J oO_ w°C) Dom z� J III \ Ink --j FE y it ul 4; 1 M. ta; 6-1 I i ma O z 0 �1 1 FE Ir 0 z Ask) Wfill §|� �o�� ,o a|| |� A. A¥am■■, mmN .. e � � |•; |3 p ( � I Ia j NOWCI(3V T NOIIVAON3a r ANV1N3W3'13 N'IOONI� 11,112,111 , Q �plw sit Y.. P's it'll, ixiaa ssaa�ona I�a�o IOOHOS AHV1NR it l3 NIOHE O Il I I I Ia a Q 5E t Ip I t 4 lg t i E# N K W, 1917 S. Gibert Street Iowa City bwa 52M MMS Consultants Inc. M9 mmsoonsultan s.net Experts inP/anningandDevelopmentSInce1975 mms@mmsconstAtantsnet MEMORANDUM To: City of Iowa City Staff Date: Nov. 6, 2017 Subject: Lincoln Elementary Sensitive Areas — Altered Protected Slopes v Lincoln Elementary School is located at 300 Teeters Court in the Chautauqua Heights subdivision in Iowa City. The school site fronts four public streets, including Teeter Court, Rider Street, Lee Street and River Street. The original building was erected in 1926, but has received five additions since with additions in 1949, 1954, 1973, 1974, and 1988. Along with the building additions, the site has received improvements with a parking lot installation, and playground improvements. The school building sits at the north end of Teeters Court and at the top of an east -facing hillside with 30 feet of elevation change down to a valley floor and the staff parking lot which is accessed from River Street. Lincoln Elementary School is scheduled to receive upgrades as part of the district wide Facilities Masterplan and the design work is currently underway for those improvements. The improvements Include a complete renovation of the existing school building and additions of a new Cafeteria, Media Center and Gymnasium with a new entrance accessed via an improved River Street parking lot. The hillside between the building at the top and the parking below is a largely unused and portions of the hillside are seemingly untouched except for the north end of the hillside adjacent to the parking lot and steps connecting it to the school building. This section of the hillside was manipulated for the installation of those site improvements. A topographic survey was performed in July of 2017 in preparation of the planned improvements. The topographic survey revealed that the hillside has a fairly consistent percentage of slope from top to bottom all along its length. The majority of the slope meets the classification of critical' slope having a percent of slope between 25% and 40% with the top of back and toe Of slope being less steep and below the threshold of 'critical' slope. The slope also has a 9 very consistent shape at the toe of slope arcing from south to north. The surveyed toe of the slope is tailed out in the attached image and delineated in with a solid black line. The assumed former or natural toe of slope is delineated with a green line and is best -fit along the surveyed toe of slope. A comparison of these two lines reveals an area of impact at the toe of the slope. The parking lot and steps were cut into the hillside when constructed and have created a steeper slope in those areas. The hillside adjacent to the comer of the parking lot is greater than 40% slope and therefore classified as 'protected'. However, the topography shows that portion of the J� hillside was cut at the toe and therefore the steepness of the slope is a product of grading 7S the slope to blend the cut grade to the natural grade. And, the slope of this portion of the 9 hillside at the toe is above 40% and not consistent with the rest of the hillside which is less steep at the toe of the slope and its lower elevations just above the toe. Additionally, the hillside has a number of large tree stumps and was once wooded, but no stumps are present in the portion of the hillside that was cut. Finally, the slope was also impacted by a storm line installation from the building to the storm pipes under the parking lot below. The identified slope on this hillside is not a 'Protected slope', but rather an 'Altered Protected Slope' as it is the result of manmade activities. The proposed building addition impacts the delineated 'Altered protected slope' and adjacent critical slopes. The School district has contracted for a geotechnical engineer to perform and analyze soil borings on this hillside, but these may be inconclusive as the E MMS Consultants, Inc. Experts In PlanNngand DevetopmentSince WS y� �i;, �I IN ism ie+taT -ems is rrc 1917 S. Gilbert Street Iowa City, Iowa 52240 3193MISM mmsconsultants.net mms@mmsconsultants.net p . I n F p¢�p, ■ e5 �yVi�.i' eh °� %o nMPoi Mr% • G J3t�X fr�fQA f 4•iti.�. ��� � QI YAP ��� _ 70TAL AREA '-M IF AC) •f.f t H .*; �� 9 w' �•: All rallyrotl Prole Clatl 5'vpe �, rlrezi impacted by parkincd lot conslwc0an Raol drain alinnnow Iran+ Gni3dlnq lv slvrm tic4++ur under Parking lol _qRIMMEW-s �I S < k Ancroo Proieol d slog,, v* Hool drain alionmW Irom grga rrn;lacli;d by bevding to slow sower .�dn�q I,�I rrn,.InrPon _ miner pxrklnq'ioi - Th m,. aM , a m ORIGINAL [[ a BLDG._ � •` ��,,,�r-- AIDIDh�f �I'ILL �i ®y. PARICINGLOT "�3 ;4� F . ! ; � • z� AND STEPS '� . � � • fie[.. ( `' ' ® • 'Y � a 0 0 M I g ;1 6'CP R gK qu . r (,j � ,. '� i" ■ f �o�i r gg a Y Ara lift 1 as 0 b R latee b 1bRI q it $1pp $ / 1 pp � � 9 A k Q j4 g R5R� C� F � • � f€ •�,. / . 1 �f f / 1 J �✓ 1 a ff 7R qw Additional information for Lincoln Elementary Variance Application Existing condition of the hillside The Lincoln Elementary school on the East side of Teeter Court is located adjacent to and atop an East facing hillside of+30 feet of elevation. Upon review of historical aerial photos (Johnson County PIV/GIS website) and inspection of the existing trees, the hillside does not appear to have been regraded at any point, except for the portions of the hillside directly North and East of the Northern end of the school building. The slope of the unaltered portions of the slope is a fairly consistent t35%. The construction of the building and site elements has impacted the site and the hillside since the building was built in 1929. The building has received a number of additions over the years with each enveloping more of the hilltop. The original building is the most evident impact on the terrain along its North and East walls, with cut and fill operations manipulated the natural slope. Other additions to the school have impacted the site and hillside, as there are roof drains transecting the hillside to the storm sewer below the base of the hill. The addition of the parking lot at the base of the hillside has altered the slope as the toe of the slope was cut back to build out the SW corner of the parking lot. On -site inspections and the topographic survey suggest the grading cut was "chased" up the hillside a significant distance. This grading work increased the percent of slope on this portion of the hillside beyond what is apparent and typical over the rest of the (unaltered) hillside. There is also a roof drain pipe that was trenched in this same cut area that extends from the building to the storm sewer under the parking lot. Likewise the installation of steps connecting the parking lot to the building cut the slope adjacent to them and increased the percent slope over the preexisting slope. - Site (lower parking) is currently not compliant with ADA parking standards The off-street parking lot for the school is accessed from River Street and is at the base of the hillside. There is no accessible route from the parking lot to the building and there for no accessible parking stalls. This lot does contain 27 spaces, and when coupled with the 10 on -street parking stalls on Teeters Court, the overall school site is deficient of the minimum ADA compliant parking stalls. A building expansion over the hillside to the elevation of the lower parking lot along with an improved parking lot will provide for more accessible parking and access to the building. - Existing school bus site access and student drop-off/ pickup procedures The current Bus loading/unloading operation for Lincoln Elementary takes place on the city street. The buses do not travel on Teeters Court as there is no cul-de-sac bulb or other means of turn- around at the end of the street. The students must walk to the far south end of the site to reach the buses parked on Rider Street. As there is no bus pull off on the street, the traffic is impacted by the queued busses, as well as the parent drop-off/pick-up traffic. An improved lower parking lot would provide for an off-street bus loop and safer situation for students and vehicular traffic as well. Describe the interim and final grading It is expected that during construction, the grading work and trenching work necessary to install the foundations for the building addition would be done with benched excavation and side slopes not exceeding the maximum safe slope determined by the geotechnical engineer and/or 3.5:1. In concert with the cut for foundations, portions of the site may require temporary sheet piles or other shoring measures. Upon completion of building walls and waterproofing measures, the disturbed area around the building will be backfilled graded to a consistent 3.5:1 slope with steeper slopes only planned as necessary to tie back into the existing undisturbed hillsides. A retaining wall is part of the proposed construction on the south side of the building addition to correctly achieve the elevations needed along the building. No retaining walls are currently planned for the hillside adjacent to the north of the building addition. Iowa City School District Lincoln Elementary School Renovation & Addition Design Development Structural Design Narrative Project Scope: The project consists of an addition and renovation to the existing Lincoln Elementary School building located in Iowa City, Iowa. The new addition will be located to the east of existing elementary school building. The addition will house a gymnasium, storage, restrooms and mechanical areas at the lower levels with a new media center and cafeteria areas located on the main level. Foundations: A geotechnical investigation has not yet been completed for the project. It is anticipated that the new additional will be supported on shallow concrete spread footings. The spread footings will extend to frost depth at 42 inches below grade. The existing site grade has a significate slope across the project site. The additional will connect to the existing building on the west side of the addition with the main level floor matching the existing building floor elevation. The addition's lower level will exit to grade of the east side of the addition approximately 30 feet lower than the existing school building main level. With the proximately of the new addition to the existing building and the depth of excavation needed to construct the addition it is recommended that an earth retention, shoring, system is provided. It is proposed to incorporate the earth retention system with the gymnasium foundation wall system. The proposed system includes soldier piles with tiebacks that anchor the foundation wall into the existing ground slope. Wood lagging would span between the soldier piles and the lagging would act as the temporary earth retention system. The concrete foundation wall would be placed against the wood lagging and soldier piles. Headed studs will be welded to the soldier piles to anchor the concrete foundation wall to the soldier piles. In the final building condition the soil loads will be resisted by the concrete foundation walls, which will transfer the load to the soldier piles, which will resist the soil load by using tieback anchors into the existing ground slope. Alternate earth retention/foundation wall systems will be investigated. Slab -on -Grade: The slab -on -grade for the project is planned to be a reinforced concrete slab -on grade. These slabs will be reinforced utilizing steel welded wire reinforcement. The floor slab shall bear on an appropriate vapor retarder that is placed over the top of free draining crushed aggregate. This crushed aggregate layer shall be a minimum of 6 inches below the floor slab on grade. Proper control joints shall be cut into the slab -on -grade at an appropriate spacing to control shrinkage cracks. At the lower level it is possible, depending on the recommendations by the project geotechnical investigation, that a subdrain system will be installed below the floor slab to control the possibility of perched water occurring due to infiltration. This subdrain system would consist of a series of drain tiles spaced across the floor slab and would be located in granular material trenches. These pipes would be collected and routed to the storm sewer. Elevated Floor Structure Framing: The elevated floor structure framing over the gymnasium will consist cf a topping slab over precast concrete double tees. The elevated floor structure at the mechanical mezzanine and the corridor area will consist of a topping slab over precast concrete hollow core slabs. The precast concrete members will be topped with a 3" thick concrete topping. 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HARVAT HALL, CITY HALL MEMBERS PRESENT: Carolyn Dyer, Ann Freerks, Mike Hensch, Phoebe Martin, Max Parsons, Mark Signs, Jodie Theobald MEMBERS ABSENT: STAFF PRESENT: Sara Hektoen. Jann Ream OTHERS PRESENT: RECOMMENDATIONS TO CITY COUNCIL: By a vote of 7-0 the Commission recommends approval of an amendment to City Code Sections 14-5B-8E Sign Standards in the Central Business zones, and the South Downtown, University, Central Crossings, Park, South Gilbert and East Side Mixed Use subdistricts to allow plastic trim cap letters for signs above the fifth story. CALL TO ORDER: Freerks called the meeting to order at 7:00 PM. PUBLIC DISCUSSION OF ANY ITEM NOT ON THE AGENDA: None. CODE AMENDMENT: Discussion of amendment to City Code Sections 14-5B-8E Sign Standards in the Central Business zones, and the South Downtown, University, Central Crossings, Park, South Gilbert and East Side Mixed Use subdistricts to allow plastic trim cap letters for signs above the fifth story and discussion of internal illumination on upper stories of high-rise buildings. Ream noted that the Commission requested more information on illumination on the high-rise building signs. So Ream prepared a map to show where the existing high-rise buildings are and also where others are proposed or already built. The map shows how the high-rise buildings are concentrated in the downtown and south downtown Riverfront Crossings area. Next Ream spent time walking the areas and driving in her car to get an idea of the viewsheds for these high-rise buildings from surrounding neighborhoods. She showed some Google images (not all completely up-to-date) and pictures she took herself to give the Commission some idea of what the viewsheds look like. Ream found that the buildings skyline are exclusively visual from the arterial streets (Burlington, Gilbert, Dubuque, Clinton and Washington Streets). There is a small area while on Riverside Drive where one can look across the river and see the buildings. Ream also noted that due to the topography (and vegetation) of the area and the existing buildings in the area the viewsheds of the high-rise buildings can change drastically (from completely Planning and Zoning Commission November 2, 2017 — Formal Meeting Page 2 of 4 obscured to viewable in half a block). Ream added that when viewing the MidWestOne Building, the sign on that building would not be allowed in the new zoning standards, it would be at least one-third smaller. Freerks asked about the 1.5 times the size of the side of the building standard for signs and is that for each side or the building as a whole. Ream stated it is for each side, each sign wall is treated separately. Freeks stated her appreciation that Reams went out and walked and drove the area to be able to show the Commission a real feel for how the area looks. Ream stated as requested she looked at what other communities allow and one of the things that surprised her was how many communities allowed roof signs, and illumination of roof signs She looked at four communities in Iowa, cities of a fairly similar size, plus she looked at both Burlington Vermont and Boulder Colorado because they are both of similar size and university towns with similar ped mall areas. Neither of those two communities allow high-rise buildings. The tallest building in Boulder allowed is 55 feet (5 stories) and in Burlington it is 65 feet. Hektoen added that the issue of illumination is not pending application so if there is a majority of commissioners that wish to pursue this further it could be added to the worklist and proceed from there. Freerks opened the public discussion. Seeing no one Freerks closed the public discussion Hensch moved to recommend approval of an amendment to City Code Sections 14-513-8E Sign Standards in the Central Business zones, and the South Downtown, University, Central Crossings, Park, South Gilbert and East Side Mixed Use subdistricts to allow plastic trim cap letters for signs above the fifth story. Martin seconded the motion. Freerks understands the amendment was to allow the plastic trim caps but wanted to use the opportunity to learn more and open the conversation and to let City Council know that some of the commissioners have concerns or thoughts of how it might affect things in the future. Freerks would rather plan than react. Theobald noted that she likes the community of Lacrosse Wisconsin and how they have created their riverfront. However at this point Iowa City is already further down the road and these conversations should have been at the beginning. In Lacrosse it appears there is a historic overlay over the entire downtown and all the signs must be wood or metal and cannot be backlit to be kept with the historic nature of the buildings. Ream noted that Dubuque Iowa had the same requirements. Signs stated he was intrigued by Ream's comment that Boulder does not allow high-rises and has building limits of 55 feet. His thought was that "ship has sailed" here in Iowa City, we have driven the prices of land up so high that one cannot afford to not build up high. Signs feels the City will see more and more high-rises because of that new reality. Ream added that Boulder passed their height ordinance in 1971. Planning and Zoning Commission November 2, 2017 — Formal Meeting Page 3 of 4 Hektoen added that in the context of affordable housing Boulder has a pretty serious affordable housing crisis. A vote was taken and the motion carried 7-0. CONSIDERATION OF MEETING MINUTES: OCTOBER 19, 2017 Theobald moved to approve the meeting minutes of October 19, 2017. Parsons seconded the motion. A vote was taken and the motion passed 7-0 i1kilkillki[H_1ki19i467kiIIki"Iki1707:7kyj/_TAIICkiF Freerks noted that in the Staff memo there were a number of places where it stated "Commission Chair expressed" or "Commission Chair requested" and asked that in the future that is not used so there doesn't appear to be a bias or so that others will not be afraid to say something or ask something in fear of being "called out" in a memo. She added this is a place for information and that the Commission collectively works as a group. The meeting minutes will indicated individual's statements and opinions. Signs noted he will be absent for the December 7 meeting Martin will be absent December 21 and January 4. ADJOURNMENT: Signs moved to adjourn. Martin seconded. A vote was taken and motion carried 7-0. Z O � Q 20 OU Uw Z W I, Z Z N NQ 0 xs z WF Z F z Q z J IL N_ r X X X X X X X r rn o XXXXXXX r o X X X X X X X r N X X X X X X X T a- X X X X 0 X X ;xoxxxxx co O- X X X X X X 0 O N X X X X X X X o XXXXXXX X X X O X X X co X X x x X X 0 o X X X X X X X ro ;-Xxxxxx N X X X X X X X I X X X 0 X X X X X X O X X X X O X X X X X LU w z J Z Y p a oa�aNQo Y z w w z z z 0 N o LL = a } w Y