Chilime Hydropower Station Rescue Log

Source-linked reports

Nepal Time · NPTUTC+05:45
v1.1.0 Documents About Guide Guide
Urgent situation Elapsed time is calculated from the first logged report at 26 August 2026, 11:43 Nepal Time. The exact incident time was not reported.

Loading the latest update. Data request: seeking verified LiDAR and sonar survey data from before and after the flood.

Drawing layout · orientation preserved
Map limits

Map limits

Illustrative only. Does not locate the incident, people, routes, or photos.

Surface
27 August 2026 measured satellite-stereo DSM inside 500 m, plus historical NASA HMA 8 m and NextGIS/Copernicus 30 m references. EGM2008 display heights; 1:1 scale. Drawing datum tie unverified.
Measured coverage
The post-flood DSM covers 83.4476% of sampled posts inside 500 m and is NoData at the approximate station reference. Voids remain transparent; 0.5 m is grid spacing, not accuracy.
Portal
No displayed surface is a site survey and the measured DSM has no value at the approximate station reference. The 6 m outline marks the drawn entrance; no terrain cut is modeled.
Alignment
No north arrow or survey control. Overlay assumes +X is east; bearing unknown.
Tunnel trace
Registered to an as-built vector chainage plan. Widths approximate; gradients and opening endpoints remain unknown.
Front elevation
Uniformly scaled from EL 1387.492–1404.00 and attached to the powerhouse face for display. Its exact plan tie and facing are not surveyed.
Photo pins
Camera pins show archive photos; numbered pins show event media. Station-area pins are display anchors, not exact entrances or camera positions.
Incident
Reviewed sources do not identify the incident tunnel or exact position.

Reviewed May be outdated—verify original sources.

Layers
Map layersCombine plan, elevation and terrain references around the reconstruction
Context layers

Measured tiles load only when selected. NoData at station is preserved.

One north-up optical comparison with a draggable time cut. Lower opacity reveals registered chainage lines; no terrain height is added or extrapolated.

Loads a ~0.5 MiB overview on first use, then only visible detail tiles.

White keeps the source plan clear. Choose Transparent overlay to see the map beneath it.

Overlays

As-built vector sheet · registered to the approximate trace

The 500 m post-flood DSM, OSM and 2 km imagery comparison load only when selected. “Save offline” stores the measured terrain and core map files—not the optical comparison. Historical terrain never fills measured voids automatically.

Model 0 / 0
Underground reconstructionControl the model independently from map layers
Reconstruction sectionsAll sections

Toggle any route or chamber. Only isolates one section and fits the fixed views to it.

Pre-event documentary synchronized to reviewed map evidence; not an incident route or live position.
Location context, not incident evidence
Map items5/5
Map visibilityShow each map item independently
Visible map item types
Personal notes are stored only in this browser and are not incident evidence.

Preparing the underground map…

—at focus

Left-drag to rotate · right-drag to pan · scroll to zoomDrag to rotate · pinch to zoom

Loading report time…
Incident location within the complex is not identified
Location unresolved within complex
Map key & routesKey

Inspect the reconstruction without assigning an incident location.

Inspect a route or chamber

Route colors

Colors identify site systems, not incident certainty.

  • Main access
  • Powerhouse
  • Electrical & secondary access
  • Water outlet (tailrace)
  • Pressure-water route (penstock)
  • Terrain · 25 m contours · true scale
Map sources & accuracy

The post-flood layer is a measured-only 27 August 2026 satellite-stereo DSM inside 500 m. Its hillshade and elevation colour are two appearances of one surface. It is NoData at the approximate station reference; 0.5 m is grid spacing, not accuracy. NASA HMA and NextGIS/Copernicus remain explicitly historical alternatives and never fill its voids automatically.
Post-flood terrain method & limits ↗ · Historical terrain method ↗ · Chainage plan PDF ↗ · Control-building elevation PDF ↗

Personal field note

Add map note

This note is stored only in this browser. It is not added to the rescue record or treated as evidence.

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Measurement cleanup

Clear all measurements?

This removes every personal and source-controlled ruler from all synchronized map views. This action cannot be undone.
Full evidence

Selected event

Situation

Evidence and contextClaims, sources and limits

Claims and source links

What this report means

What remains unknown

Revision history1 revision

    Illustrative map only

    Not for rescue, access, engineering, or forensic decisions. Geometry and incident locations are unverified. Confirm operational facts with incident command and authorized engineering records.

    Timeline controls

    Filter evidence

    Source type

    Verification

    Source

    Source details

    Publisher
    Authority
    Published
    Retrieved

    Supports

    Does not establish

    Report provenance

    Sources for this update

    Each link opens the exact report cited by this record.

    0 sources

      Owner-named roster

      People reported unaccounted for

      Loading the latest named owner roster…

      Source-dated response

      Response activity

      Loading source-reported teams…

      Help

      Start with Updates. Select a report for its summary and unknowns; choose Full evidence for claims, sources, and revisions.

      • Updates are newest first.
      • Selecting one replaces the Updates list while keeping the map visible.
      • On phones, Back to updates restores the list.
      Dates and evidence

      Published or Reported is the source timestamp, not necessarily the event time. Occurred appears only when a source states it. Times use Nepal time (UTC+05:45). Open a source to see what it supports and what remains unverified; several reports may still repeat one account.

      Map controls and limits

      The reconstruction is site context, not an event-location map. Selecting an update does not place the incident in a tunnel; the branch and exact locations remain unverified.

      Left-drag to rotate, right-drag to pan, and scroll to zoom toward the pointer. With a viewport focused, arrow keys pan and plus or minus zoom. Use Map key & routes to inspect a feature.

      Choose Pan or Rotate, then drag. Pinch to zoom; use Reset for the overview. Marker text appears as you zoom closer.

      Map items independently shows or hides system labels, measurements, annotations, event areas, and photos without deleting them.

      User-drawn measurements are saved only in this browser and shared across Current, Top, Front, and Side. Drawing, resizing, removing, clearing, or adding text to a user measurement updates every viewport. Double-click its line or badge—or focus the badge and press Enter—to edit its text. Custom measurement text remains visible whenever its ruler is on-screen, even when another measurement is selected. Evidence-controlled measurement sets are read-only and also projected into every viewport. Front and Side endpoint labels show elevation only and appear at detail zoom.

      Photos and personal notes

      Update photos open published images linked to the log. An area only marker means the source did not establish an exact camera or event location. Photo locations is historical station context, not incident-time evidence.

      Annotate saves personal map notes in this browser only; they are not part of the published record.

      Alt + ← / → Previous / nextEsc Close dialog

      Illustrative map only. Not for rescue, access, engineering, or forensic decisions. Geometry and incident locations are unverified.

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