Drawing to BOQpipeline control sheet
← Mindmapwhat the drawings said

Existing Groundline

2 pages · 2 crops · ×9 · earthwork

Matched toExisting Ground Surfacebridge.ground_system.existing_groundon “existing groundline”

1 read off the drawings · 1 not established
The class asks forValueHowFrom
Ground LevelGLwants mnot establishedThe approximate existing groundline/existing ground-profile line is identified in both crops, but neither crop states an elevation specifically at that line. The elevation values in page 3 apply to the access road and existing track, not to the existing ground/profile line; the elevation scales cannot establish an exact ground level without a readable plotted ordinate.not found
ChainageCHwants m302+00, 302+50, 303+00, 303+50, 304+00, 304+50, 305+00, 305+50 mThe existing ground/profile line is shown in each of eight railroad cross sections. The stated cross-section stations are 302+00 through 305+50 at 50-unit intervals.readp3 · p03_r03 railroad cross sections

Worked out by openai/gpt-5.6-terra-pro from the readings below, which are the source. A derived value shows its arithmetic — check it against the drawing before it is priced.

How the sheets named it

approximate existing groundlineexisting ground/profile line

Notes on the sheets that carry it

  • p1CHAIN LINK WIRE FENCE, TYP.
  • p1FRONT FACE OF WALL NO. 1
  • p1FRONT FACE OF WALL NO. 2
  • p1APPROXIMATE EXISTING GROUNDLINE
  • p1NOTES — partial note block visible at right edge; text is cut off and illegible in part.

Every crop it was read in — the drawing beside what the model took off it

Page 1

crop

bridge_1

page 1 · bridge_1
Original
bridge_1
{
  "view": "Elevation",
  "objects": [
    {
      "name": "bridge deck/superstructure",
      "tag": "",
      "shape": "longitudinal rectangular deck profile",
      "material": "",
      "count": 1,
      "note": "Shown across the full bridge length in elevation."
    },
    {
      "name": "abutment wall",
      "tag": "WALL NO. 1",
      "shape": "vertical wall",
      "material": "",
      "count": 1,
      "note": "Front face is called out."
    },
    {
      "name": "abutment wall",
      "tag": "WALL NO. 2",
      "shape": "vertical wall",
      "material": "",
      "count": 1,
      "note": "Front face is called out."
    },
    {
      "name": "bridge bent",
      "tag": "BENT 2",
      "shape": "rectangular pier column with rectangular cap",
      "material": "",
      "count": 1,
      "note": "Shown with a pile-supported footing."
    },
    {
      "name": "bridge bent",
      "tag": "BENT 3",
      "shape": "rectangular pier column with rectangular cap",
      "material": "",
      "count": 1,
      "note": "Shown with a pile-supported footing."
    },
    {
      "name": "pile-supported footing",
      "tag": "",
      "shape": "rectangular",
      "material": "",
      "count": 2,
      "note": "One beneath each visible bent; individual piles are shown but not tagged."
    },
    {
      "name": "pile",
      "tag": "",
      "shape": "vertical",
      "material": "",
      "count": null,
      "note": "Visible below both bent footings; exact count is unclear at this crop resolution."
    },
    {
      "name": "bearing",
      "tag": "FIX",
      "shape": "rectangular",
      "material": "",
      "count": 2,
      "note": "Fixed bearings shown at Bent 2."
    },
    {
      "name": "bearing",
      "tag": "EXP.",
      "shape": "rectangular",
      "material": "",
      "count": 4,
      "note": "Expansion bearings shown at Wall No. 1, Bent 3, and Wall No. 2."
    },
    {
      "name": "chain link wire fence",
      "tag": "",
      "shape": "rectangular mesh panel",
      "material": "chain link wire",
      "count": 3,
      "note": "Called out as typical."
    },
    {
      "name": "future access road",
      "tag": "",
      "shape": "horizontal line",
      "material": "",
      "count": 1,
      "note": "Centerline is identified."
    },
    {
      "name": "existing track",
      "tag": "",
      "shape": "vertical dashed centerline",
      "material": "",
      "count": 1,
      "note": "Centerline is identified."
    },
    {
      "name": "future track",
      "tag": "",
      "shape": "vertical dashed centerline",
      "material": "",
      "count": 1,
      "note": "Centerline is identified."
    },
    {
      "name": "future groundline",
      "tag": "",
      "shape": "irregular profile",
      "material": "",
      "count": 1,
      "note": ""
    },
    {
      "name": "approximate existing groundline",
      "tag": "",
      "shape": "horizontal line",
      "material": "",
      "count": 1,
      "note": ""
    }
  ],
  "measurements": [
    {
      "label": "Total length of bridge",
      "value": "192'-0\" ***",
      "unit": "",
      "appliesTo": "bridge"
    },
    {
      "label": "Span length",
      "value": "55'-0\" ***",
      "unit": "",
      "appliesTo": "between B.F.P.R. BENT 1 and BENT 2"
    },
    {
      "label": "Span length",
      "value": "82'-0\" ***",
      "unit": "",
      "appliesTo": "between BENT 2 and BENT 3"
    },
    {
      "label": "Span length",
      "value": "55'-0\" ***",
      "unit": "",
      "appliesTo": "between BENT 3 and B.F.P.R. BENT 4"
    },
    {
      "label": "Elevation",
      "value": "151.00",
      "unit": "",
      "appliesTo": "EL. 151.00, TYP."
    }
  ],
  "notes": [
    "CHAIN LINK WIRE FENCE, TYP.",
    "FRONT FACE OF WALL NO. 1",
    "FRONT FACE OF WALL NO. 2",
    "APPROXIMATE EXISTING GROUNDLINE",
    "NOTES — partial note block visible at right edge; text is cut off and illegible in part."
  ],
  "labels": [
    "PLAN",
    "B.F.P.R. BENT 1 ***",
    "BENT 2 **",
    "BENT 3 **",
    "B.F.P.R. BENT 4 ***",
    "PGL",
    "℄ FUTURE ACCESS ROAD",
    "℄ EXISTING TRACK",
    "℄ FUTURE TRACK",
    "FUTURE GROUNDLINE",
    "ELEVATION"
  ],
  "description": "This crop principally shows an elevation of a bridge with end walls, Bents 2 and 3, deck superstructure, bearings, and pile-supported bent footings. The bridge is dimensioned as three spans of 55'-0\", 82'-0\", and 55'-0\", with a stated total length of 192'-0\". A partial plan heading and dimension string are visible above the elevation."
}

bridge_1Elevation

  • approximate existing groundline×1horizontal line

192'-0" *** Total length of bridge55'-0" *** Span length82'-0" *** Span length55'-0" *** Span length151.00 Elevation

Page 3

crop

p03_r03 railroad cross sections

page 3 · gdot_plan_ab5a9057847f41e3bb9d0ead3c6f2c22_p03_r03_railroad_cross_sections
Original
p03_r03 railroad cross sections
{
  "view": "Cross Section",
  "objects": [
    {
      "name": "existing railroad right-of-way limits",
      "tag": "",
      "shape": "vertical dashed lines",
      "material": "",
      "count": 16,
      "note": "Two limits are shown in each of eight cross sections."
    },
    {
      "name": "access road",
      "tag": "℄ ACCESS RD.",
      "shape": "irregular depressed roadway profile",
      "material": "",
      "count": 8,
      "note": "One access-road centerline/profile is shown in each cross section."
    },
    {
      "name": "existing railroad track",
      "tag": "℄ EXIST. TRACK",
      "shape": "track schematic with rectangular base",
      "material": "",
      "count": 8,
      "note": "One existing-track schematic is shown in each cross section."
    },
    {
      "name": "future railroad track",
      "tag": "℄ FUTURE TRACK",
      "shape": "track schematic with rectangular base",
      "material": "",
      "count": 8,
      "note": "One future-track schematic is shown in each cross section."
    },
    {
      "name": "existing ground/profile line",
      "tag": "",
      "shape": "irregular dashed line",
      "material": "",
      "count": 8,
      "note": "Dashed profile line extends across each cross section."
    }
  ],
  "measurements": [
    {
      "label": "elevation scale",
      "value": "170",
      "unit": "",
      "appliesTo": "305+50 cross section"
    },
    {
      "label": "elevation scale",
      "value": "160",
      "unit": "",
      "appliesTo": "305+50 cross section"
    },
    {
      "label": "elevation scale",
      "value": "150",
      "unit": "",
      "appliesTo": "305+50 cross section"
    },
    {
      "label": "access road elevation",
      "value": "156.38",
      "unit": "",
      "appliesTo": "℄ ACCESS RD. at 305+50"
    },
    {
      "label": "existing track elevation",
      "value": "161.94",
      "unit": "",
      "appliesTo": "℄ EXIST. TRACK at 305+50"
    },
    {
      "label": "existing track elevation",
      "value": "161.94",
      "unit": "",
      "appliesTo": "℄ EXIST. TRACK at 305+50"
    },
    {
      "label": "station",
      "value": "305+50",
      "unit": "",
      "appliesTo": "cross section"
    },
    {
      "label": "elevation scale",
      "value": "170",
      "unit": "",
      "appliesTo": "305+00 cross section"
    },
    {
      "label": "elevation scale",
      "value": "160",
      "unit": "",
      "appliesTo": "305+00 cross section"
    },
    {
      "label": "elevation scale",
      "value": "150",
      "unit": "",
      "appliesTo": "305+00 cross section"
    },
    {
      "label": "access road elevation",
      "value": "156.58",
      "unit": "",
      "appliesTo": "℄ ACCESS RD. at 305+00"
    },
    {
      "label": "existing track elevation",
      "value": "161.73",
      "unit": "",
      "appliesTo": "℄ EXIST. TRACK at 305+00"
    },
    {
      "label": "existing track elevation",
      "value": "161.69",
      "unit": "",
      "appliesTo": "℄ EXIST. TRACK at 305+00"
    },
    {
      "label": "station",
      "value": "305+00",
      "unit": "",
      "appliesTo": "cross section"
    },
    {
      "label": "elevation scale",
      "value": "170",
      "unit": "",
      "appliesTo": "304+50 cross section"
    },
    {
      "label": "elevation scale",
      "value": "160",
      "unit": "",
      "appliesTo": "304+50 cross section"
    },
    {
      "label": "elevation scale",
      "value": "150",
      "unit": "",
      "appliesTo": "304+50 cross section"
    },
    {
      "label": "access road elevation",
      "value": "157.06",
      "unit": "",
      "appliesTo": "℄ ACCESS RD. at 304+50"
    },
    {
      "label": "existing track elevation",
      "value": "161.49",
      "unit": "",
      "appliesTo": "℄ EXIST. TRACK at 304+50"
    },
    {
      "label": "existing track elevation",
      "value": "161.46",
      "unit": "",
      "appliesTo": "℄ EXIST. TRACK at 304+50"
    },
    {
      "label": "station",
      "value": "304+50",
      "unit": "",
      "appliesTo": "cross section"
    },
    {
      "label": "elevation scale",
      "value": "170",
      "unit": "",
      "appliesTo": "304+00 cross section"
    },
    {
      "label": "elevation scale",
      "value": "160",
      "unit": "",
      "appliesTo": "304+00 cross section"
    },
    {
      "label": "elevation scale",
      "value": "150",
      "unit": "",
      "appliesTo": "304+00 cross section"
    },
    {
      "label": "access road elevation",
      "value": "158.37",
      "unit": "",
      "appliesTo": "℄ ACCESS RD. at 304+00"
    },
    {
      "label": "existing track elevation",
      "value": "161.26",
      "unit": "",
      "appliesTo": "℄ EXIST. TRACK at 304+00"
    },
    {
      "label": "existing track elevation",
      "value": "161.24",
      "unit": "",
      "appliesTo": "℄ EXIST. TRACK at 304+00"
    },
    {
      "label": "station",
      "value": "304+00",
      "unit": "",
      "appliesTo": "cross section"
    },
    {
      "label": "elevation scale",
      "value": "170",
      "unit": "",
      "appliesTo": "303+50 cross section"
    },
    {
      "label": "elevation scale",
      "value": "160",
      "unit": "",
      "appliesTo": "303+50 cross section"
    },
    {
      "label": "elevation scale",
      "value": "150",
      "unit": "",
      "appliesTo": "303+50 cross section"
    },
    {
      "label": "access road elevation",
      "value": "158.18",
      "unit": "",
      "appliesTo": "℄ ACCESS RD. at 303+50"
    },
    {
      "label": "existing track elevation",
      "value": "161.05",
      "unit": "",
      "appliesTo": "℄ EXIST. TRACK at 303+50"
    },
    {
      "label": "existing track elevation",
      "value": "161.04",
      "unit": "",
      "appliesTo": "℄ EXIST. TRACK at 303+50"
    },
    {
      "label": "station",
      "value": "303+50",
      "unit": "",
      "appliesTo": "cross section"
    },
    {
      "label": "elevation scale",
      "value": "170",
      "unit": "",
      "appliesTo": "303+00 cross section"
    },
    {
      "label": "elevation scale",
      "value": "160",
      "unit": "",
      "appliesTo": "303+00 cross section"
    },
    {
      "label": "elevation scale",
      "value": "150",
      "unit": "",
      "appliesTo": "303+00 cross section"
    },
    {
      "label": "access road elevation",
      "value": "156.46",
      "unit": "",
      "appliesTo": "℄ ACCESS RD. at 303+00"
    },
    {
      "label": "existing track elevation",
      "value": "160.88",
      "unit": "",
      "appliesTo": "℄ EXIST. TRACK at 303+00"
    },
    {
      "label": "existing track elevation",
      "value": "160.88",
      "unit": "",
      "appliesTo": "℄ EXIST. TRACK at 303+00"
    },
    {
      "label": "station",
      "value": "303+00",
      "unit": "",
      "appliesTo": "cross section"
    },
    {
      "label": "elevation scale",
      "value": "170",
      "unit": "",
      "appliesTo": "302+50 cross section"
    },
    {
      "label": "elevation scale",
      "value": "160",
      "unit": "",
      "appliesTo": "302+50 cross section"
    },
    {
      "label": "elevation scale",
      "value": "150",
      "unit": "",
      "appliesTo": "302+50 cross section"
    },
    {
      "label": "access road elevation",
      "value": "157.16",
      "unit": "",
      "appliesTo": "℄ ACCESS RD. at 302+50"
    },
    {
      "label": "existing track elevation",
      "value": "160.68",
      "unit": "",
      "appliesTo": "℄ EXIST. TRACK at 302+50"
    },
    {
      "label": "existing track elevation",
      "value": "160.66",
      "unit": "",
      "appliesTo": "℄ EXIST. TRACK at 302+50"
    },
    {
      "label": "station",
      "value": "302+50",
      "unit": "",
      "appliesTo": "cross section"
    },
    {
      "label": "elevation scale",
      "value": "170",
      "unit": "",
      "appliesTo": "302+00 cross section"
    },
    {
      "label": "elevation scale",
      "value": "160",
      "unit": "",
      "appliesTo": "302+00 cross section"
    },
    {
      "label": "elevation scale",
      "value": "150",
      "unit": "",
      "appliesTo": "302+00 cross section"
    },
    {
      "label": "access road elevation",
      "value": "156.82",
      "unit": "",
      "appliesTo": "℄ ACCESS RD. at 302+00"
    },
    {
      "label": "existing track elevation",
      "value": "160.49",
      "unit": "",
      "appliesTo": "℄ EXIST. TRACK at 302+00"
    },
    {
      "label": "existing track elevation",
      "value": "160.48",
      "unit": "",
      "appliesTo": "℄ EXIST. TRACK at 302+00"
    },
    {
      "label": "station",
      "value": "302+00",
      "unit": "",
      "appliesTo": "cross section"
    }
  ],
  "notes": [],
  "labels": [
    "RAILROAD CROSS SECTIONS"
  ],
  "description": "The crop shows eight railroad cross sections at stations 302+00 through 305+50. Each section depicts existing railroad right-of-way limits, an access-road centerline/profile, existing track, future track, a dashed ground/profile line, and printed elevations."
}

p03_r03 railroad cross sectionsCross Section

  • existing ground/profile line×8irregular dashed lineDashed profile line extends across each cross section.

170 elevation scale160 elevation scale150 elevation scale156.38 access road elevation161.94 existing track elevation161.94 existing track elevation305+50 station170 elevation scale+48 more