Existing catenary masts, Bdl 418 km 31–36: IFC model

Catenary masts with foundations, stays and struts on the double-track stretch past Granvik. Positions are the block insertion points in the design map and, for km 33+350–34+650, the coordinates in the mast list. Each mast is turned to follow the track using the alignment plan.

182 mastsSWEREF 99 TM / SWEREF 99 16 30IFC 4.3Sources: DWG design map, Excel mast list, alignment planPrepared 2026-11-05

Summary

Coordinate zone

46 masts converted from SWEREF 99 15 00 to 16 30

The mast list for km 33+350–34+650 uses another zone than the drawing. Read as given, these masts fall 82.9 km east of the line. After conversion they stand 3.10–3.50 m from their track centre, like the masts from the drawing.

Rotation

182 rotations derived from the alignment

All DWG blocks are inserted with rotation 0 and the mast list has no rotation column. Each rotation follows the track direction at the mast's chainage. Through three curves the bearing changes by 42.0°; the TM rotations include the +1.30° grid convergence between the zones.

To verify on site

5 masts without foundation type

Five rows in the mast list have an empty foundation column. They are modelled with the foundation used for the same mast type elsewhere and flagged "Verify on site" in the property set.

Model: 3D and plan view

Bdl 418, km 31+000–36+000, 182 masts. Drag to turn the model and click a mast to read its IFC properties. The coordinate fix and the rotation can be switched off to show the positions and directions given by the sources.

Bdl 418 · km 33+250

Drag to turn · right-drag to pan · scroll to zoom

Overview · km 31+000–36+000 AlignmentMasts from the Excel listCurrent view
Layers
    Delivery: IFC 4.3

    Bdl 418 existing catenary masts, km 31–36

    Bdl418_KL-stolpar_befintlig.ifc
    IFC4X3_ADD2SWEREF 99 TM · EPSG:3006Heights RH 2000IfcMapConversion
    EntityContentCount
    One IFC 4.3 file in SWEREF 99 TM (EPSG:3006) with masts, foundations, cantilevers, stays, struts and the alignment. Download is not enabled on this page. Track, terrain and contact wire are drawn for context and are not part of the file.
    STEP preview · selected mast 
    
          
    
        
    
      
    
  
    

  
    
    
    Sources and method
    
    
    
      
    
        
    Sources
    
        
      
          
    • Projekteringskarta_KL_Bdl 418.dwgDesign map, catenary (KL); mast blocks on layer KL-STOLPE-BEF14.2 MB
      • 
          
    • Stolpförteckning_befintlig.xlsxExisting mast list for km 33+350–34+650, 1 sheet46 rows
      • 
          
    • Linjeföring_plan_km 31-36.pdfAlignment plan, 13 alignment elements6 pages · 3.8 MB
      • 
        
    
      
    
      
    
        
    Method
    
        
      
          
    1. The 136 mast blocks on layer KL-STOLPE-BEF were read from the design map: insertion point, block name and attributes.
      2. 
          
    2. For km 33+350–34+650, where the drawing has no mast blocks, 46 masts were taken from the mast list.
      3. 
          
    3. The list coordinates were converted from SWEREF 99 15 00 to 16 30, and all positions to SWEREF 99 TM, via geographic coordinates on GRS 80.
      4. 
          
    4. The track centreline was rebuilt from the 13 alignment elements in the plan, and each mast's rotation was set from the track direction at its chainage.
      5. 
          
    5. The distance from each mast to its own track centre was measured, and the model was written as IFC 4.3 in SWEREF 99 TM with heights in RH 2000.
      6. 
        
    
        
    Assumptions and limits
    
        
      
          
    • The mast list does not state its coordinate zone. It was read as SWEREF 99 15 00 because that zone places the masts beside the track; read as 16 30 they fall 82.9 km east of it.
      • 
          
    • Positions are used as given in the drawing and the list. The check covers the distance to the own track centre only: all masts stand 3.10–3.50 m from it, on the drawn side.
      • 
          
    • No source gives the mast direction. Rotations are derived from the alignment plan and should be spot-checked in the field or against a survey.
      • 
          
    • 5 masts have an assumed foundation type and are flagged "Verify on site".
      • 
          
    • Track, terrain and contact wire are drawn for context and are not part of the export.
      •