Environmental CommissionAug. 21, 2024

20240821-002: Umlauf Museum Plan Part2 — original pdf

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Other Environmental Features The UMLAUF site falls within the Salamander Habitat Zone. An Environmental Resource Inventory (please see full report in appendix) was conducted to identify the presence of the salamander or other critical environmental features on site. The inventory concluded that there is a total of zero (0) Critical Environmental Feature(s) (CEFs) on or within 150 feet of the project site. ANALYSIS | 71 UMLAUF HPEU PLAN Offsite Drainage Given an assumption of 65% impervious cover and 35% pervious cover, with pervious surfaces represented by well-maintained grass areas on flat slopes (0-2%) and impervious surfaces including asphalt roads, the runoff calculations for area 1 amount to 250.2 cubic feet per second (cfs), while area 2 yields 62.8 cfs. SITE: 7.664 AC 2 OFFSITE DRAINAGE: 28.48 AC 1 ANALYSIS | 72 UMLAUF HPEU PLAN Zoning The UMLAUF site is comprised of two properties: Lot 1 (605 AZIE MORTON RD), and Lot 2 (506 BARTON BLVD). Lot 1 is zoned SF-3, while Lot 2 has a portion zoned as SF-3 and the area along Barton Springs Road zoned as CS. See descriptions below. SF-3 Family Residence The Family Residence district is intended for moderate density single-family residential use, with a minimum lot size of 5,750 square feet. CS General Commercial Services General Commercial Services district is primarily designated for commercial and industrial activities of a service nature, characterized by traffic service requirement that are typically incompatible with residential environments. In both zones, community recreation and cultural services are permitted or conditional uses. ANALYSIS | 73 UMLAUF HPEU PLAN Impervious Cover The UMLAUF site’s lots are subject to impervious cover requirements dictated by their respective zones. Lot 1 currently exhibits 18% impervious cover, whereas Lot 2, encompassing the area of the historic homestead, boasts 21% impervious cover. Lot 1 has a maximum allowable coverage of 45%, while Lot 2’s impervious cover allowance ranges from 45% to 95%, contingent upon the specific zone designation. Please refer to the detailed descriptions provided below for further clarification. Lot 1 (5.437 ac) Zone: SF-3 Maximum Impervious Cover allowed: 45% Current Impervious Cover: 18% Lot 2 (1.928 ac) Zone: SF3/C Maximum Impervious Cover allowed in SF3 zone: 45% Maximum Impervious Cover allowed in C zone: 95% Current Impervious Cover: 21% ANALYSIS | 74 UMLAUF HPEU PLAN Overlays The UMLAUF site is included in two waterfront overlays, which prohibits uses that are not related to the UMLAUF’s program. The scenic Roadways Overlay suggests that, where possible, scenic vistas from the roadways should be preserved. Residential Design Standards: LDC/25-2-Subchapter F Scenic Roadways Overlay: BARTON SPRINGS ROAD Waterfront Setbacks Overlay Waterfront Overlay: BUTLER SHORES, ZILKER PARK Scenic Roadways Overlay: Barton Springs Rd Wildland Urban Interface Waterfront Overlay: Zilker Park Waterfront Overlay: Butler Shores Required waterfront setback ANALYSIS | 75 UMLAUF HPEU PLAN Circulation The UMLAUF’s existing parking capacity is a modest 20 spaces with the entrance and exit on Azie Morton Road. Parking is supplemented by adjacent lots across the street for overflow. Currently, the site’s access primarily favors vehicles, neglecting alternative mobility options. Additionally, two gated entries exist, with Azie Morton Road’s entry serving heavy deliveries and trash pickup, while the Barton Blvd entry, closer to the home and studio, is used by staff. The limited parking infrastructure and distribution of entries underscore the need for a comprehensive approach to enhance accessibility, accommodate diverse transportation methods, and optimize operational functionality within the UMLAUF site. Vehicular access Vehicular exit Street direction ANALYSIS | 76 UMLAUF HPEU PLAN Site Access The current UMLAUF access point prioritizes private vehicles, posing challenges for users arriving from adjacent parking lots, the bus stop, or the city network. When arriving by walking/wheeling, users must navigate around the parking lot to reach the museum, with the crosswalk connecting directly to vehicular access, compromising safety. Additionally, the ADA Accessibility Assessment found the ADA assigned parking and access to the gallery non-compliant, please see page 88 for more information. To foster a more welcoming experience, it is vital to improve the connection to the Ann and Roy Butler Hike-and-Bike Trail and relocate the crosswalk. Wayfinding strategies could enhance these connections, seamlessly integrating the UMLAUF site into the city’s green network, promoting accessibility, safety, and a more inclusive and enjoyable experience for visitors from various modes of transportation. Sidewalk Trail Unprotected bike lane Walking route Crosswalk Bus stop Traffic light ANALYSIS | 77 UMLAUF HPEU PLAN C B A UMLAUF Signage Enhancements to signage around the UMLAUF could significantly elevate the welcoming experience and draw in more visitors. Currently, only two permanent signs are situated along Azie Morton Road, with one serving as the primary entrance and the other positioned across the road to guide drivers. Additionally, temporary canvas signs are placed along Barton Springs Blvd to announce forthcoming events and exhibitions. Expanding and refining the signage network could greatly enhance visibility and attract a broader audience to the UMLAUF. Please see the Edge Study on the following page. B A C ANALYSIS | 78 UMLAUF HPEU PLAN Edge Study Currently, the site edges disconnect the UMLAUF site from its surroundings. Enhancing the immediate context to the city and neighborhood is possible through thoughtful and effective edge treatments. Edge zone 2 is especially crucial, as it features a retaining wall that requires maintenance and a sidewalk that abruptly ends at the corner which presents navigational challenges. The following page includes images and concise descriptions of each of the eight identified edge conditions for further insight. ANALYSIS | 79 UMLAUF HPEU PLAN Edge Study t f 4 . 5 1 Barton Springs Road 2 Azie Morton Rd / Barton Springs Rd 3 Azie Morton 4 Vehicular exit The Barton Springs Road side creates a monotonous pedestrian experience. Public feedback indicates a challenge in recognizing the museum behind the wall. The corner’s retaining wall exhibits dangerous and neglected conditions. Another type of treatment could enhance the public’s experience. Along Azie Morton Rd, a fence defines the site, providing visibility into the garden but also exposing garden visitors to the road’s noise and views. The vehicular exit is currently used also by walking/ wheeling users. 12 ft 5 Signage 6 Vehicular access 7 Azie Morton Rd 8 Barton Blvd The UMLAUF signage in Azie Morton Road marks the site’s entry The vehicular access is connected to the crosswalk, it is also used by walking/wheeling users to access the site A more natural edge is seen on the southern part of the site along Azie Morton, where a fence covered by vegetation defines the site’s limits. There is no immediate fence or physical division along Barton Blvd, as the fence is located down the slope. This road is commonly used by the neighborhood as a promenade. ANALYSIS | 80 UMLAUF HPEU PLAN Existing Buildings Currently, the UMLAUF’s primary program spaces are the gallery, terrace, and Crenshaw building, complemented by the sculpture garden and Pitts Pavilion for outdoor events. The historic homestead is inaccessible to the public. Temporary structures fulfill programmatic needs, however, the home has been currently used as office space and storage due to space constraints. Other temporary structures are serving as offices, operational spaces, and storage. The plan acknowledges and integrates the architectural character of the gallery, Crenshaw, and historic homestead in its design guidelines, ensuring a cohesive and harmonious aesthetic that respects the legacy and uniqueness of each structure within the UMLAUF site. Museum Gallery + Terrace Roberta Crenshaw Building Umlauf Home Umlauf Studio Art Pavilion (temporary structure) Shed (temporary structure) L A D Y B I R D L A K E B A R T O N C R E E K N R O A D 3 6 O R T O A ZIE M 2 1 5 BARTON BLVD B A R T O N S P RIN G S R O A D 4 B A R T O N B LV D S U N SET VIE W CLIFF DRIVE VIRGINIA AVE ANALYSIS | 81 UMLAUF HPEU PLAN Existing Buildings Museum Gallery + Terrace Roberta Crenshaw Building Umlauf Home Umlauf Studio Art Pavilion (temporary) Accessible to the public Accessible to the public Currently inaccessible to the public Currently inaccessible to the public Currently inaccessible to the public Year built: 1991 Year built: 2001 Year built: 1950 Year added: 2018 Current uses: • Museum gallery • Lobby + ticketing area • Admin + operations • Terrace for open events • Restrooms • Storage Current uses: • Meeting room • Educational programs • Private restroom Year built: Late 1920’s, purchased by the Umlauf’s in 1944 Current uses: • Admin + operations (in some rooms) • Storage Current uses: • Storage Current uses: • Admin + operations ANALYSIS | 82 UMLAUF HPEU PLAN Outdoor Spaces + Landscape Features The community’s feedback highlights a strong preference for the UMLAUF’s outdoor spaces. These areas, including outdoor structures and landscape features, significantly enhance the exploration of the sculpture garden, supporting diverse programs like weddings, public events, and outdoor workshops. Each outdoor space possesses a distinct character that harmoniously blends with the site landscape and contributes to a unique and immersive experience. The site’s water features —an ornamental pond (with pump and lined) and an ornamental waterfall— enhance the outdoor experience and provide thermal comfort in hot weather. However, these water features are currently supplied by potable water. The plan includes sustainability recommendations to switch the supply to non-potable water, aligning sustainability goals with the community’s desire for a nature-centric setting within the UMLAUF site. See more in the Sustainability + Reslience chapter. 1 2 3 4 5 6 7 8 Gallery terrace Waterfall/channel (ornamental) Promenade Upper pond (ornamental) Pitts Pavilion Upper Bridge Lower Bridge Pond (ornamental) ANALYSIS | 83 UMLAUF HPEU PLAN Outdoor Spaces + Landscape Features 1 Gallery Terrace 2 Waterfall (ornamental) 3 Promenade 4 Upper Pond (ornamental) 5 Pitts Pavilion 6 Upper Bridge 7 Lower Bridge 8 Pond (ornamental) ANALYSIS | 84 UMLAUF HPEU PLAN ANALYSIS | 85 UMLAUF HPEU PLAN Slope Analysis The UMLAUF site grapples with challenging topography, featuring slopes ranging from 15 to 60% and smaller areas exceeding 60%. Highly sloped zones, primarily along the boundaries and the historic site near Barton Blvd, pose significant intervention challenges. An extensive orange zone (15 to 60%) creates accessibility hurdles, dividing the historic area from the sculpture garden. This challenges linking the garden with the home and studio. To ensure full accessibility, an accessibility assessment will guide proposed interventions in the plan, guaranteeing compliance and fostering a site design that accommodates diverse mobility needs across the site. 15-60% slope 60% slope or higher ANALYSIS | 86 UMLAUF HPEU PLAN Trees Over 1,500 trees populate the UMLAUF site, including 17 heritage trees and 25 protected trees. Protected trees, with a diameter exceeding 19 inches, and heritage trees, with a diameter surpassing 24 inches, will be safeguarded and considered in the plan’s interventions. Please refer to the landscape chapter for a comprehensive overview of additional strategies aimed at preserving and enhancing the rich natural diversity within the UMLAUF site. Protected tree (diameter > 19”) Heritage tree (diameter > 24”) Other trees ANALYSIS | 87 UMLAUF HPEU PLAN Accessibility + ADA Compliance Providing an equitable experience for mobility and visually impaired patrons is important to the UMLAUF and its mission to serve the public. The site has a number of barriers to accessibility. The map shows currently non- compliant routes, including the designated accessible parking, and currently non-compliant spaces, such as the bathrooms, water fountain, kitchen, information counter, Umlauf’s home, and the lack of connection to the studio. A compliant bathroom is currently situated between the museum gallery and the Crenshaw Building, accessible via the gallery. However, accessing the bathroom during events, when the museum is closed, involves a non- compliant pathway. For more detail, please refer to the full ADA Accessibility Assessment, included in the appendix. These are priority issues to address in future improvements on the site. The approach to the site along the public right of way will need to be improved to provide an accessible route to the site. The accessible parking will need to be brought up to current Texas Architectural Barriers Standards. The museum toilet rooms will require extensive modifications to provide accessible clearances. The garden pathways do not meet slope and cross-slope limitations and will need to be brought up to state code. The proposed new facility will provide access to the upper portion of the site via elevator, providing a navigable route up the 45’ tall escarpment and the home and studio. Current non-compliant routes Current non-compliant spaces Current compliant bathroom ANALYSIS | 88 UMLAUF HPEU PLAN Views The UMLAUF site’s diverse topography offers striking viewpoints, particularly from elevated areas, providing captivating vistas of the city or serene natural landscapes. Designated in brown, crucial view areas must be preserved without prominent interruptions to fully appreciate the historic district and ensure an uninterrupted visual experience across the historic homestead. ANALYSIS | 89 UMLAUF HPEU PLAN Views 1 4 7 2 5 8 3 6 9 ANALYSIS | 90 UMLAUF HPEU PLAN Site Constraints The map illustrates an overlay of site constraints, highlighting the intricate nature of the site. Incorporating factors such as protected and heritage trees, sloped terrain, and FEMA flood zones, it becomes evident that the design must be responsive to these elements. FEMA 100 Year (Detailed-AE) FEMA 500 Year 15-60% slope 60% slope or higher Protected tree (diameter > 19”) Heritage tree (diameter > 24”) ANALYSIS | 91 UMLAUF HPEU PLAN 05 HPEU Plan Vision Illustrative Plan Proposed Circulation Program Proposed Areas Historic Preservation Landscape Strategies UMLAUF HPEU PLAN Site Concept The UMLAUF HPEU Plan strategically links the four main site areas through two key interventions, ensuring adequate programming and enhancing accessibility. The activation of the site’s edges creates a more welcoming arrival and overall experience around the site. Historic Historic Historic Zone Homestead Homestead Sculpture Sculpture Sculpture Garden + Garden + Garden Museum Museum Welcome Welcome Welcome Zone ZoneZone Natural Natural ZoneZone Natural Zone Zones Connectors Active Edges The welcome zone is introduced as the fourth main area, each zone possesses distinct characteristics and functions, seamlessly blending into one another for a cohesive and harmonious integration. The gateway and treehouse serve as connectors, enhancing accessibility and linking previously inaccessible areas. Simultaneously, they accommodate essential museum operations and offer expanded spaces for events, education, and exhibitions. Strategic interventions along the site edges foster openness to the community, crafting friendlier and subtler boundaries with improved visual connections and an enhanced entry experience. HPEU PLAN | 93 UMLAUF HPEU PLAN Illustrative Plan The UMLAUF HPEU Plan carefully connects the currently inaccessible areas of the site with the museum and sculpture garden, prioritizing the user experience and improving the connection with the site from the moment of arrival. The plan aims for a seamless and accessible site-wide experience, offering both indoor and outdoor spaces for a range of programming. The plan suggest interventions that could accommodate large gatherings, workshops, art classes, and expanded exhibition opportunities, to offer programs to a wider and more diverse audience. Respecting existing structures and ecosystems, new buildings aim to coexist with the site, ensuring a harmonious integration while maintaining the UMLAUF’s unique legacy and sense of exploration. L A D Y B I R D L A K E B A R T O N C R E E K D A O N R O RT O ZIE M A B A R T O N S P RIN G S R O A D B A R T O N B LV D S U N SET VIE W BARTON BLVD CLIFF DRIVE VIR GINIA AVE HPEU PLAN | 94 UMLAUF HPEU PLAN New Connectors The plan suggests incorporating two primary connectors: the gateway and the treehouse. The treehouse facilitates access to the historic homestead situated atop the hill. On the other hand, the gateway serves as a welcoming point for visitors, connecting educational programs with the creek behind the existing terrace, and directing users towards the natural zone. HPEU PLAN | 95 UMLAUF HPEU PLAN Proposed Circulation The proposed circulation plan prioritizes accessibility, enhancing the site experience through the gateway and treehouse. Starting at the welcome zone, an upgraded entry provides a seamless beginning for visitors. A new crosswalk directs visitors to the gateway and gallery area, where a welcoming plaza offers choices: visitors can explore the gateway, which houses a new ticketing area, lobby, and gift shop, or they can access the public area, free of admission, featuring zones for food trucks and vendors, as well as an accessible trail or boardwalk through the natural zone. The sculpture garden retains its wild and exploratory atmosphere while connecting to the treehouse, which serves as a focal point for exhibitions and events. Acting as an accessibility hub, the treehouse connects to the historic homestead via an elevator. For vehicular circulation, parking is expanded with separate access and exit points. The existing service entry is retained and improved, expanded to accommodate firetruck access and serving as an alternative for ADA accessibility and vendor drop-off, with a few temporary parking spots near the treehouse. This specific access point and segment of the garden path must adhere to ADA accessibility standards and be user-friendly for catering services and other vendors. Further studies on efficiency and firetruck access are recommended to ensure optimal functionality. “More of the UMLAUF site needs to be more accessible to the public.” HPEU PLAN | 96 UMLAUF HPEU PLAN Program As a result of public work sessions and programming workshops, the following programmatic needs and sizes were developed. These numbers account for current space uses at the UMLAUF, while also creating additional space to expand on the usable hours of the museum and sculpture garden. In an effort to increase accessibility of the UMLAUF to the public, a combination of indoor and outdoor spaces are added, which also allow for flexibility in growth. These spaces are seamlessly aligned with the current program, while being intentional about where the extra square footage is integrated into the landscape. By mapping out the current versus needed spatial requirements, these amounts serve as a guiding tool, and demonstrate how the HPEU plan augments and optimizes the current program square footage to accommodate the museum’s evolving needs and aspirations, all while prioritizing sustainability/resilience, legacy, and community. HPEU PLAN | 97 UMLAUF HPEU PLAN Welcome Zone The Welcome Zone introduces a new cluster designed to foster openness, promote community connections, and create a more inviting arrival experience. A relocated crosswalk provides direct access to the public area, eliminating the need to circumvent the parking lot. Users, greeted by entry sculptures, reach the “entry plaza,” a decision-making point and welcoming space for group gatherings, vehicle waiting, or starting tours. An open seating public space, and foodtruck and vendor area, strengthens community ties and broadens culinary options in the vicinity of the gateway. Additionally, a connection to an accessible trail facilitates exploration of the UMLAUF’s natural surroundings in the enhanced natural zone through an interpretive boardwalk, offering scenic viewpoints and a richer connection with the site’s nature. “...when I first saw it, it was hard to tell if it was private property or not. It didn't look super welcoming until I looked it up and saw it was a museum”. Opportunity for City Partnership HPEU PLAN | 98 BARTON SPRINGS ROADAZIE MORTON ROADBARTON BLVDBARTON BLVDSUNSET VIEWCLIFF DRIVEVIRGINIA AVEBARTON CREEKLADY BIRD LAKEUMLAUF HPEU PLAN Welcome Zone Gateway The gateway serves two primary functions: enhancing the arrival experience and accommodating education and operations programs. It seamlessly integrates with the existing building typology, elevating the arrival experience for visitors. The gateway, along with its adjacent exterior spaces, serves as a focal point for decision-making and congregation, where visitors gather before proceeding to the gallery and sculpture garden to the north or the public area and natural zone to the south. Additionally, it features a new, easily accessible ticketing area where visitors can seek information and obtain site maps conveniently, contributing to a more user-friendly experience. The gateway is located close to the stream, representing not only the site’s natural elements but also functioning as an educational tool. From this unique vantage point, visitors gain insights into the ecological dynamics of the site, underscoring the intrinsic connection between art and nature. “It would be nice to have tickets to keep as souvenirs.” MEETING ROOMS 400 SF RR 160 SF RR 160 SF DIRECTORS AND OPS OFFICE 300 SF LIBRARY 125 SF STORAGE 150 SF CLASSROOM - WORKSHOP 500 SF CLASSROOM - DUAL PURPOSE 500 SF LOBBY 250 SF TICKETING 200 SF HPEU PLAN | 99 UMLAUF HPEU PLAN HPEU PLAN | 100 UMLAUF HPEU PLAN “ I immediately was drawn to that waterfall, as if this was the only place around that was still able to provide the wonderful ways of Mother Nature.” HPEU PLAN | 101 UMLAUF HPEU PLAN