ITEM04 C15-2025-0026 ADV PACKET PART2 — original pdf

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ITEM04/46ITEM04/47ITEM04/48ITEM04/49ITEM04/50ITEM04/51ITEM04/52ITEM04/53Exhibit A: Image from 09/24/2025 showing the lake depth is 2’9.5” 30 ft from shore 33.5 inches 2 feet 9.5 inches ITEM04/54Exhibit B: Image from 10/09/2025 showing the lake depth measure 2’1.5” where the hull of a boat would sit with a 30ft long boat dock 25.5 inches 2 feet 1.5 inches ITEM04/55 Exhibit C: Images showing existing structures extend less into the lake than the downstream neighboring dock which is 30ft in length. 1748 dock (downstream) 1748 dock extends much further into the lake Existing 1750 dock Current structure which is 6 inches longer than the proposed is further from the middle of the lake than the adjacent downstream neighbors 30 foot dock. ITEM04/56 Exhibit D: Downstream shoreline curves into the in front of the dock creating several feet of length into the lake. Closeup of neighboring shoreline shows that it protrudes into the lake several feet where the boat dock is. ITEM04/57 Opposition to Variance 2 CASES C15-2025-0026 and C15-2025-0027 1 Site Plan SP-2025-0119D 1750 Channel Rd. & 1752 Channel Rd. By: Bruce & Nellie Slayden, Conforming dock at 1744 Channel Rd. 1 ITEM04/581750 Channel Rd - Nonconforming 37’ Existing nonconforming: Never Permitted 1 story Uncovered fishing pier NO watercraft slips 2 ITEM04/591752 Channel Rd - Nonconforming 47’ or 46’ 1” Existing nonconforming structure: Never permitted 1-story 1-watercraft slip 47’ Length Proposed nonconforming: • 3 stories across entire structure • 2 watercraft slips • 46’1’ shoreline L is 16’1” (154% of) over statutory 30’ • 22’ W vs. 14’W Existing • 2 flights of stairs • Proposed dimensions and location different than existing 3 ITEM04/60Applicants Proposed Docks vs. Existing 4 ITEM04/61NO HARDSHIP Applicants False/Misleading Assumptions for Alleged Hardship Applicant FALSE assumption “‘a modern watercraft’ requires water depth of 4 feet” True: Numerous modern watercraft require much less than 4. “Modern watercraft” operate in 2.5’depths: • Inboard/Outboard Watercraft • Pontoon Watercraft • Tritoon Watercraft • Outboard Watercraft • Jet Watercraft 5 ITEM04/62Applicants state “‘modern watercraft’ require 4’ water depth; See Aqua Permit, Item 05/8 Presentation, p. 8 True: Modern lifts designed specifically to protect “modern watercraft” in shallow waters only need 2.5’ depth; no excess dredging • Cantilever Lifts extend and retract 3’ to 6’ into lake for launching and docking Modern Watercraft ; e.g. HydroHoist Ultralift for 6500 lbs watercraft, extends 4.5’ into lake, min depth 2.5’ • Articulating Lifts • Extending Lifts 6 ITEM04/637 ITEM04/64Cantilever Lifts prevalent on Lake Austin HydroHoist Ultra Cantilever Lift; 6500 lbs watercraft, travels 54”, 2.5’ depth Only 8.17 Cu Yds Dredge Volume Less than 25 Cu Yds No dredging needed past ~17.5’ from shoreline Methodology: 2.5’ Depth (Red Line at 490.3’ ) applied to Applicant Data; Intersects “Existing Profile of Lake Bed” at 17.5’ shoreline L, eliminating dredging from 17.5’ to 30’ Using above data for Average End Area Calculation, Dredge Volume = (Ave Height 0.9’ x 14’W x 17.5’ L ) = 220.5 Cu Ft = 8.17 Cu Yds 2.5 requires only 8.17 Cu. Yds of dredge across 17.5’ from shoreline 8 ITEM04/65Cantilever Lifts prevalent on Lake Austin HydroHoist Ultra Cantilever Lift; 6500 lbs watercraft, travels 54”, 2.5’ depth Only 9.72 Cu Yds Dredge Volume Less than 25 Cu Yds No dredging needed past ~17.5’ from shoreline Methodology: 2.5’ Depth (Red Line at 490.3’) applied to Applicant Data; Intersects “Existing Profile of Lake Bed” at 15’ shoreline L, eliminating dredging from 15’ to 30’ Using above data for Average End Area Calculation, Dredge Volume = (Ave Height, Bulkhead & 15’) 1.25’ x 14’W x 15’ L = 9.72 Cu Yds 2.5’ Depth requires only 9.72 Cu. Yds of dredge across 15.0’ from shoreline 9 ITEM04/66NO HARDSHIP (1750) Applicants Apply False/Misleading Data FALSE TRUE ‘Modern Watercraft’ require water depth of 4 ft” Forces excessive dredging greater than 25 Cu Yds Dredge Volume: 31.01 Cu Yds Modern lifts specifically designed to store, launch and dock 6500 lbs modern watercraft in shallow waters; 2.5’ depths ; Cradle travels 4.5’ Cantilever Lift Significantly Reduce Dredging Dredge Volume: 8.17 Cu Yds Average End Area Calculation using Applicants’ Data at 2.5’ Depth 10 ITEM04/67NO HARDSHIP (1752) Applicants Apply False/Misleading Data FALSE TRUE ‘Modern Watercraft’ require water depth of 4 ft” Forces excessive dredging greater than 25 Cu Yds Dredge Volume: 42.18 Cu Yds Modern lifts specifically designed to store, launch and dock 6500 lbs modern watercraft in shallow waters; 2.5’ depths ; Cradle travels 4.5’ Cantilever Lift Significantly Reduce Dredging Dredge Volume: 9.72 Cu Yds Average End Area Calculation using Applicants’ Data at 2.5’ Depth 11 ITEM04/68• LDC 25-2-1176(A)(1): "A dock may extend up to 30 feet from the shoreline, except that the director may require a dock to extend a lesser or greater distance from the shoreline if deemed necessary to ensure navigation safety" • Navigation safety under LDC 25-2-1176(A)(1) includes navigation safety for the public, watercraft operators, and other legal users of “a navigable waterway” • Applicants blatantly ignore “Navigation safety” for the Public and Lawful Users in the most Congested area of a designated public Navigable Waterway • Applicants’ nonconforming structure egregiously disrupts the safest lane of travel in the most congested and highest traffic area of a designated “navigable waterway;” see e.g. SB 1844 • City of Austin’s Lake Austin Incident Data shows highest responder encounters within 1/2 mile of 360 Bridge Public Watercraft Ramp, including near Applicants’ proposed structures • We urge the Board to seek Legal advice in interpreting “NAVIGATION SAFETY” as codified in LDC 25-2-1176(A)(1) 12 ITEM04/6913 ITEM04/70• Airplanes taking off and landing • New to Watercraft operators • Kids on floats • Jet Skis (rental) • New surfers and skiers falling • Multiple watercraft accelerating from Party cove and Boat ramp at no wake buoys near Applicants’ properties 14 ITEM04/71Nonconforming 1750 & 1752 Docks Are Navigation Hazards to All Proximate Users • “Navigation Safety” applies to all lake users; not just Applicant • Most Watercraft accelerate from idle to high speeds starting at No Wake Zone buoys • Nonconforming Extending 6’ and 16’ into Lake’s most congested and highest usage thoroughfare • Creates an artificial blind curve in a critical area • Disrupts and impedes visibility for all Watercraft, jet skiers, and public users following shoreline and adhering to Lake Laws • Unnecessary Navigational and Safety Hazard for • Watercraft, jet skiers, and public users near 360 Ramp • Many Watercraft exiting “Party Cove,” numerous DUI • Blocks watercraft visibility in congested area, reducing reaction time for watercraft operators • Blocks visibility and reduces reaction time for downstream neighbors entering or exiting their conforming docks 15 ITEM04/72Nonconforming 1750 & 1752 Docks Are Navigation Hazards for Conforming Neighbors • Applicants’ False statement: “Additionally, this dock’s design will not extend further than nor impede access to any of the neighboring docks.” • All newly constructed docks along Channel Rd, including 1704, 1744, 1756 and 1758 Channel Rd., conform with shoreline length requirements of LDC 25-2-1176(A)(1) • Non-Conforming Structures: Disrupts 6’ and 16’1” into navigable waterway. Creates artificial blind curve • Impedes Visibility of watercraft approaching downstream neighbors entering or exiting their docks at slow speeds, leaving minimal reaction opportunities for approaching vessels • Impedes visibility of downstream neighbors entering or exiting their docks at slow speeds, leaving minimal reaction opportunities for docking vessel • Removes 16’1” of visibility for watercraft operations in Lake’s most congested and highest use thoroughfare • Navigational and Safety Hazard for the immediate three conforming downstream dock users ~30’ of shoreline • Penalizes conforming new structures 16 ITEM04/73