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KETURAH BAHR - Project Data Extraction Project Identity • Project Name: KETURAH BAHR (Malaysia D-38) • Location: The World Islands, Dubai • Adjacent Islands: Thailand D37, Sumatra D88, Java • Master Developer: Nakheel • Survey Contractor: Van Oord - Marine Survey Services • Survey Date: 12 December 2018 • Drawing Reference: 313856-BATH-DWG-0256 Document Type: INQUIRY DOCUMENT Date: 23 December 2025 (referenced as TG2026) KEY QUESTIONS RAISED (5 Critical Inquiries) Question 1: Design Orientation Feasibility "The island outline needs to be fine-tuned according to design requirements; see the comparison chart for details" AUTHORITY FLAG: Island reconfiguration requires Nakheel Master Developer approval + DM Coastal approval Question 2: Pier Location Feasibility "Feasibility of the Locations of Public Navigation Piers and Private Piers. In the current plan, the water depth of private piers ranges from -2.5m to -7.5m, and that of public piers is -7.5m. Please confirm if this meets the requirements" STATED DEPTHS: • Private Yacht Jetty: -2.5M to -7.5M • Public Mooring: -7.5M Question 3: Archipelago Maintenance Measures "Suggestions on Maintenance Measures for the Archipelago after Renovation" Question 4: Setback Verification "Verify the correctness of the setback conclusion" Question 5: Tidal Line Data Request "Can you provide the tidal line data for the island?" BATHYMETRIC DATA (From Van Oord Survey) Reference System • Chart Datum Level: DMD (Dubai Municipality Datum) • Spheroid: WGS84 • Projection: UTM Zone 40N • False Easting: 500000.000 • False Northing: 0.000 • Scale Factor on CM: 1.000 Survey Reference Position • Easting: 483624.681 E • Northing: 2791996.580 N • Elevation: 15.089 m Depth Color Legend (meters below DMD) Color Depth Range Dark Blue > 8 Blue 6-8 Light Blue 4-6 Cyan 2-4 Green 1-2 Yellow 0-1 Orange -1 to 0 Red -2 to -1 Pink -3 to -2 Light Pink -4 to -3 Gray -6 to -4 Dark Gray -8 to -6 Darker -10 to -8 Darkest -12 to -10 Black < -12 EARTHWORK ANALYSIS Volumes Category Volume (m³) Excavation Area 4,093 m³ Fill-in Area 3,267 m³ Landscape Soil Accumulation 900 m³ Elevation Markers on Design • Northern area: -1.0M, -0.5M • Central lagoon area: 3-4M (above datum) • Eastern pier area: 1.0M • Southern area: 1.0M WHARF ANALYSIS Water Depths at Piers (As Shown) Location Depth Type North piers -2.5M Private Yacht Jetty Northeast -2.5M, -3.5M, 7.5M Mixed East -7.5M Public Mooring Southeast -7.5M Public Mooring South -2.5M, -3.5M Private Yacht Jetty West -2.5M Private Yacht Jetty Navigation Routes • Private Yacht Route: Blue dashed arrows (multiple approach directions) • Public Boat Traffic Flow: Red dotted line (circumnavigating island) BUILDING CONCESSION / SETBACK ANALYSIS Setback Lines Identified Line Type Color Description Property Line Red (solid) Outer boundary of ownership Building Envelope Setback Lines Blue Buildable area limit Setbacks for Water Structures Green Marine structure limits Setback Control for Island Reconfiguration Yellow/Orange Island shape modification limits Setback Dimensions Shown • 25.00m setbacks (multiple locations) • 30.00m setbacks • 40.00m setbacks • 50.00m setbacks ISLAND MAINTENANCE MEASURES Section Detail Shows: • Private Waters zone • Interior Space zone • Private Beach zone • Building elevation: 115 SQ.M footprint shown • Beach profile with palm trees • Underwater slope transition Critical Questions on Maintenance: 1. Island boundary treatment: Natural gentle beach transition OR artificial protective embankment? 2. Artificial lagoon vs natural seawater: Natural transition OR clear boundary separation? 3. Tidal line data needed to clarify relationship between building elevation and tidal height CONTOUR CONTRAST ANALYSIS Three Outline Types: 1. Plan The Island Outline (Dashed black) - Proposed design boundary 2. Current Island Outline (Pink/Red solid) - Existing island shape 3. Designed Island Outline (Green fill) - Final design footprint Key Observation: • Significant deviation between current island outline and designed outline • Design extends beyond current island in multiple locations (requiring fill) • Design recedes from current island in other areas (requiring excavation) GEODETIC PARAMETERS Parameter Value Datum Name WGS84 Spheroid WGS84 Semi-major axis 6378137.000 1/f 298.2572236 Source spheroid WGS84 Target spheroid WGS84 dx 0.000 m dy 0.000 m dz 0.000 m Rx 0.000° Ry 0.000° Rz 0.000° SF 1.000 NOTES FROM SURVEY DOCUMENT 1. Dimensions are in meters and levels are in meters above Dubai Municipality Datum (DMD) 2. Levels and contours are plotted from average depth of 1x1m grid. Decimal places is the location of depth plotted.