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River / Earthen Drain

1 page · 2 crops · other

Matched toCrossing Alignmentbridge.alignment_system.crossing_alignmentcheckon “River”

2 read off the drawings
The class asks forValueHowFrom
Skew AngleTHETAwants deg30° degKey plan proposal table states 'SKEW: 30°'; the half plans repeat '30° SKEW' for the structure crossing the Sipra River / earthen drain. The skew is the angle between the road/structure axis and the channel (crossing) axis.Stated outright in the key plan proposal table and annotated on the plans; the skew of the crossing is the angle at which the bridge crosses the river/earthen drain, so it is the item's own skew.readp1 · p01_r01p1 · p01_r01 key plan
ChainageCHwants m64+412 m (km+m chainage)Key plan table: 'PROPOSED CH.: 64+412', i.e. the chainage of the proposed structure crossing the Sipra River / earthen drain, lying between the key-plan chainage markers 64+400 and 64+500. No arithmetic required.The chainage given is that of the proposed structure at the crossing point of the river/earthen drain; the drawings do not give a separate chainage for the channel itself, so this value is the crossing chainage attributed to the item — hence low confidence on ownership.readcheckp1 · p01_r01 key planp1 · p01_r01

Worked out by anthropic/claude-opus-5 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

River / earthen drain (key plan)Earthen drain / river channel

Notes on the sheets that carry it

  • p1C/L OF EXP. JOINT
  • p1MEDIAN WALL PCC M15
  • p1INDEPENDENT RETAINING WALL
  • p1RET./ TOE WALL
  • p130° SKEW
  • p15000 (TYP.)
  • p1New Construction
  • p1PROPOSED CH.: 64+412
  • p1STRUCTURE TYPE: MJBR
  • p1PROPOSED SPAN: 2X40m
  • p1SKEW: 30°
  • p1PROPOSAL: New Construction

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

Page 1

crop

p01_r01

page 1 · bridge_alignment_and_row_p01_r01
Original
p01_r01
{
  "view": "Plan",
  "objects": [
    {
      "name": "Pier (substructure axis)",
      "tag": "P1",
      "shape": "skewed line axis",
      "material": "",
      "count": 1,
      "note": "Grid/axis reference at left edge of crop, only the label bubble visible"
    },
    {
      "name": "Abutment (axis / centre line of expansion joint)",
      "tag": "A1",
      "shape": "skewed line axis",
      "material": "",
      "count": 1,
      "note": "Axis annotated 'C/L OF EXP. JOINT'"
    },
    {
      "name": "Expansion joint",
      "tag": "",
      "shape": "linear joint at skew",
      "material": "",
      "count": 1,
      "note": "Indicated by centre-line callout at A1"
    },
    {
      "name": "Deck slab / carriageway (half plan at deck level)",
      "tag": "",
      "shape": "parallelogram (30° skew)",
      "material": "",
      "count": 1,
      "note": "Only the right-hand portion of the half deck plan lies within the crop; left side cut off"
    },
    {
      "name": "Crash barrier",
      "tag": "",
      "shape": "linear edge element",
      "material": "",
      "count": null,
      "note": "Label 'BARRIER' partially cut at left edge of deck level plan"
    },
    {
      "name": "Bearing / pedestal (small squares on deck-level plan at supports)",
      "tag": "",
      "shape": "square in plan",
      "material": "",
      "count": 12,
      "note": "Small hatched squares along the skewed support lines of both deck-level half plans; count approximate to what is visible"
    },
    {
      "name": "Pile / pile group (circles on foundation level plan)",
      "tag": "",
      "shape": "circular",
      "material": "",
      "count": 40,
      "note": "Circles arranged in rows at 3750 spacing within two skewed foundation rafts/pile caps; count is of circles visible in this crop"
    },
    {
      "name": "Foundation raft / pile cap (half plan at foundation level)",
      "tag": "",
      "shape": "parallelogram (skewed)",
      "material": "",
      "count": 2,
      "note": "Two skewed foundation blocks shown, separated by median wall"
    },
    {
      "name": "Median wall",
      "tag": "",
      "shape": "narrow strip between the two foundation blocks",
      "material": "PCC M15",
      "count": 1,
      "note": "Shown hatched/stippled"
    },
    {
      "name": "Independent retaining wall",
      "tag": "",
      "shape": "linear wall in plan",
      "material": "",
      "count": 2,
      "note": "Called out at the ends of both foundation level half plans"
    },
    {
      "name": "Retaining / toe wall (key plan)",
      "tag": "",
      "shape": "linear",
      "material": "",
      "count": 2,
      "note": "Leader-labelled 'RET./ TOE WALL' on key plan, two occurrences"
    },
    {
      "name": "Proposed bridge structure footprint (key plan)",
      "tag": "",
      "shape": "hatched rectangle across river/road",
      "material": "",
      "count": 1,
      "note": "Dense cross-hatched block on key plan marking the proposed structure"
    },
    {
      "name": "Existing road / carriageway with embankment side slopes (key plan)",
      "tag": "",
      "shape": "linear corridor",
      "material": "",
      "count": 1,
      "note": "Shown with hatched slope symbols either side"
    },
    {
      "name": "Right of way lines (key plan)",
      "tag": "ROW",
      "shape": "linear boundary lines",
      "material": "",
      "count": 4,
      "note": "Labelled 'ROW' in four places on key plan"
    },
    {
      "name": "River / earthen drain (key plan)",
      "tag": "",
      "shape": "natural channel with contours",
      "material": "",
      "count": null,
      "note": "Text partially rotated/illegible: 'Sipra River', 'Earthen Drain'"
    }
  ],
  "measurements": [
    {
      "label": "Span length (square) and along skew",
      "value": "40000(SQ)  46189(SK)",
      "unit": "",
      "appliesTo": "Span between P1 and A1"
    },
    {
      "label": "Skew angle",
      "value": "30°",
      "unit": "",
      "appliesTo": "Deck / structure skew"
    },
    {
      "label": "Edge offset dimension",
      "value": "1275",
      "unit": "",
      "appliesTo": "Deck level half plan (upper) - end offset"
    },
    {
      "label": "Transverse spacing (typical, deck level upper plan)",
      "value": "3500",
      "unit": "",
      "appliesTo": "Bearing/girder spacing, deck level plan"
    },
    {
      "label": "Overall transverse width (deck level upper plan)",
      "value": "16550",
      "unit": "",
      "appliesTo": "Deck level half plan"
    },
    {
      "label": "Edge offset dimensions (deck level lower plan)",
      "value": "1275",
      "unit": "",
      "appliesTo": "Deck level half plan (lower) - both ends"
    },
    {
      "label": "Transverse spacing (deck level lower plan)",
      "value": "3500",
      "unit": "",
      "appliesTo": "Bearing/girder spacing, lower deck level plan"
    },
    {
      "label": "Overall transverse width (deck level lower plan)",
      "value": "16550",
      "unit": "",
      "appliesTo": "Deck level half plan (lower)"
    },
    {
      "label": "Spacing between barrier/bearing marks",
      "value": "5000",
      "unit": "",
      "appliesTo": "Deck level plan, noted (TYP.)"
    },
    {
      "label": "Edge offset (foundation level upper plan)",
      "value": "775",
      "unit": "",
      "appliesTo": "Foundation level half plan (upper), both ends"
    },
    {
      "label": "Pile row spacing (foundation level upper plan)",
      "value": "3750",
      "unit": "",
      "appliesTo": "Pile spacing, foundation level plan"
    },
    {
      "label": "Overall transverse width (foundation level upper plan)",
      "value": "16550",
      "unit": "",
      "appliesTo": "Foundation level half plan (upper)"
    },
    {
      "label": "Edge offset (foundation level lower plan)",
      "value": "775",
      "unit": "",
      "appliesTo": "Foundation level half plan (lower), both ends"
    },
    {
      "label": "Pile row spacing (foundation level lower plan)",
      "value": "3750",
      "unit": "",
      "appliesTo": "Pile spacing, foundation level plan (lower)"
    },
    {
      "label": "Overall transverse width (foundation level lower plan)",
      "value": "16550",
      "unit": "",
      "appliesTo": "Foundation level half plan (lower)"
    },
    {
      "label": "Scale of half plans",
      "value": "1:300",
      "unit": "",
      "appliesTo": "HALF PLAN SHOWING DECK LEVEL / FOUNDATION LEVEL"
    },
    {
      "label": "Scale of key plan",
      "value": "1:2000",
      "unit": "",
      "appliesTo": "KEY PLAN"
    },
    {
      "label": "Proposed chainage",
      "value": "64+412",
      "unit": "",
      "appliesTo": "Proposed structure (key plan table)"
    },
    {
      "label": "Proposed span",
      "value": "2X40m",
      "unit": "m",
      "appliesTo": "Proposed structure (key plan table)"
    },
    {
      "label": "Skew (key plan table)",
      "value": "30°",
      "unit": "",
      "appliesTo": "Proposed structure"
    },
    {
      "label": "Chainage marker on key plan",
      "value": "64+400",
      "unit": "",
      "appliesTo": "Road alignment, key plan"
    },
    {
      "label": "Chainage marker on key plan",
      "value": "64+500",
      "unit": "",
      "appliesTo": "Road alignment, key plan"
    }
  ],
  "notes": [
    "C/L OF EXP. JOINT",
    "MEDIAN WALL PCC M15",
    "INDEPENDENT RETAINING WALL",
    "RET./ TOE WALL",
    "30° SKEW",
    "5000 (TYP.)",
    "New Construction"
  ],
  "labels": [
    "HALF PLAN SHOWING DECK LEVEL",
    "HALF PLAN SHOWING FOUNDATION LEVEL",
    "(SCALE 1:300)",
    "KEY PLAN",
    "(SCALE 1:2000)",
    "TO KHANDWA",
    "TO DEWAS",
    "ROW",
    "PROPOSED CH:",
    "STRUCTURE TYPE",
    "MJBR",
    "PROPOSED SPAN",
    "SKEW",
    "PROPOSAL",
    "BARRIER (partial)",
    "N / S / E / W (north arrow)",
    "Sipra River (partial, rotated)",
    "Earthen Drain (partial, rotated)",
    "Agricultural Road (partial, rotated)"
  ],
  "description": "This crop shows the right-hand portion of two half plans of a skewed bridge — one at deck level (with barrier line, bearing/pedestal squares at 3500 spacing and 30° skew) and one at foundation level (two skewed pile-cap/raft blocks with pile circles at 3750 spacing, separated by a PCC M15 median wall and terminated by independent retaining walls) — drawn to 1:300. Grid bubbles P1 and A1 fix the 40000 (SQ) / 46189 (SK) span, with the centre line of the expansion joint at A1 and traffic direction to Khandwa. At upper right is the 1:2000 key plan showing the proposed structure hatched across the river/drain at chainage 64+412, structure type MJBR, 2X40m span, 30° skew, new construction, with ROW lines, retaining/toe walls and chainage marks 64+400 and 64+500."
}

p01_r01Plan

  • River / earthen drain (key plan)natural channel with contoursText partially rotated/illegible: 'Sipra River', 'Earthen Drain'

40000(SQ) 46189(SK) Span length (square) and along skew30° Skew angle1275 Edge offset dimension3500 Transverse spacing (typical, deck level upper plan)16550 Overall transverse width (deck level upper plan)1275 Edge offset dimensions (deck level lower plan)3500 Transverse spacing (deck level lower plan)16550 Overall transverse width (deck level lower plan)+14 more

crop

p01_r01 key plan

page 1 · structural_drawings_pkg_1_9fa14effda074c9fb8ebfc78f519cc6d_p01_r01_key_plan
Original
p01_r01 key plan
{
  "view": "Plan",
  "objects": [
    {
      "name": "Pier (substructure line marked P1)",
      "tag": "P1",
      "shape": "skewed line marker on plan",
      "material": "",
      "count": 1,
      "note": "Only the grid/centre-line callout 'P1' is visible at left edge of crop; the pier itself is cut off."
    },
    {
      "name": "Abutment",
      "tag": "A1",
      "shape": "skewed (30° skew) rectangular in plan",
      "material": "reinforced concrete",
      "count": 1,
      "note": "Marked with circled tag A1 and located at centre line of expansion joint."
    },
    {
      "name": "Pile cap / foundation raft (skew)",
      "tag": "",
      "shape": "parallelogram (skewed rectangular) in plan",
      "material": "reinforced concrete",
      "count": 2,
      "note": "Two half-plan foundation blocks shown, separated by median wall; each 16550 wide with pile grid inside."
    },
    {
      "name": "Pile",
      "tag": "",
      "shape": "circular",
      "material": "reinforced concrete",
      "count": 40,
      "note": "Circles drawn on the two foundation-level parallelograms at 3750 spacing; approximately 20 per foundation block as drawn — count from crop only."
    },
    {
      "name": "Median wall",
      "tag": "",
      "shape": "narrow rectangular strip",
      "material": "PCC M15",
      "count": 1,
      "note": "Hatched strip between the two foundation blocks, labelled 'MEDIAN WALL PCC M15'."
    },
    {
      "name": "Independent retaining wall",
      "tag": "",
      "shape": "linear wall in plan",
      "material": "",
      "count": 2,
      "note": "Called out at top-right and bottom-right of the foundation-level half plan."
    },
    {
      "name": "Expansion joint",
      "tag": "",
      "shape": "linear joint across deck",
      "material": "",
      "count": 1,
      "note": "Callout 'C/L OF EXP. JOINT' at A1."
    },
    {
      "name": "Deck slab / superstructure (half plan at deck level)",
      "tag": "",
      "shape": "skewed rectangular",
      "material": "reinforced concrete",
      "count": null,
      "note": "Partially shown at left of crop; girder/beam lines and bearing pedestals visible but mostly cut off."
    },
    {
      "name": "Bearing / bearing pedestal",
      "tag": "",
      "shape": "small square blocks",
      "material": "",
      "count": null,
      "note": "Small squares on hatched substructure lines in the deck-level half plan; count not reliable as the view is cut."
    },
    {
      "name": "Crash barrier",
      "tag": "",
      "shape": "linear",
      "material": "",
      "count": null,
      "note": "Text partially cut at lower left reading '...RRIER'."
    },
    {
      "name": "Retaining / toe wall (key plan)",
      "tag": "",
      "shape": "linear wall along road edge",
      "material": "",
      "count": 2,
      "note": "Labelled 'RET./ TOE WALL' twice in the key plan."
    },
    {
      "name": "Proposed bridge structure (hatched block in key plan)",
      "tag": "",
      "shape": "skewed rectangular block",
      "material": "",
      "count": 1,
      "note": "Hatched area across river/drain in key plan representing the proposed MJBR."
    },
    {
      "name": "Earthen drain / river channel",
      "tag": "",
      "shape": "meandering channel",
      "material": "",
      "count": null,
      "note": "Key plan shows 'Sipra River' and 'Earthen Drain' labels with contours."
    },
    {
      "name": "Existing road / carriageway with median (key plan)",
      "tag": "",
      "shape": "linear divided carriageway",
      "material": "",
      "count": 1,
      "note": "Shown with chainage markers and ROW lines."
    }
  ],
  "measurements": [
    {
      "label": "Span length (square) / (skew)",
      "value": "40000(SQ)  46189(SK)",
      "unit": "",
      "appliesTo": "P1 to A1 span"
    },
    {
      "label": "Skew angle",
      "value": "30°",
      "unit": "",
      "appliesTo": "deck level half plan"
    },
    {
      "label": "Edge/offset dimension",
      "value": "1275",
      "unit": "",
      "appliesTo": "deck level half plan (top)"
    },
    {
      "label": "Beam/bearing spacing (typical string)",
      "value": "3500",
      "unit": "",
      "appliesTo": "deck level half plan — 5 spaces upper block"
    },
    {
      "label": "Overall width",
      "value": "16550",
      "unit": "",
      "appliesTo": "deck level half plan (upper block)"
    },
    {
      "label": "Offset dimension",
      "value": "1275",
      "unit": "",
      "appliesTo": "deck level half plan (between blocks)"
    },
    {
      "label": "Offset dimension",
      "value": "1275",
      "unit": "",
      "appliesTo": "deck level half plan (lower block, upper end)"
    },
    {
      "label": "Beam/bearing spacing",
      "value": "3500",
      "unit": "",
      "appliesTo": "deck level half plan — lower block"
    },
    {
      "label": "Overall width",
      "value": "16550",
      "unit": "",
      "appliesTo": "deck level half plan (lower block)"
    },
    {
      "label": "Edge/offset dimension",
      "value": "1275",
      "unit": "",
      "appliesTo": "deck level half plan (bottom)"
    },
    {
      "label": "Barrier post / panel spacing (typical)",
      "value": "5000 (TYP.)",
      "unit": "",
      "appliesTo": "crash barrier, deck level half plan"
    },
    {
      "label": "Edge distance to first pile row",
      "value": "775",
      "unit": "",
      "appliesTo": "upper foundation block (top edge)"
    },
    {
      "label": "Pile spacing",
      "value": "3750",
      "unit": "",
      "appliesTo": "upper foundation block — 4 spaces"
    },
    {
      "label": "Foundation block width",
      "value": "16550",
      "unit": "",
      "appliesTo": "upper foundation block"
    },
    {
      "label": "Edge distance to last pile row",
      "value": "775",
      "unit": "",
      "appliesTo": "upper foundation block (bottom edge)"
    },
    {
      "label": "Edge distance to first pile row",
      "value": "775",
      "unit": "",
      "appliesTo": "lower foundation block (top edge)"
    },
    {
      "label": "Pile spacing",
      "value": "3750",
      "unit": "",
      "appliesTo": "lower foundation block — 4 spaces"
    },
    {
      "label": "Foundation block width",
      "value": "16550",
      "unit": "",
      "appliesTo": "lower foundation block"
    },
    {
      "label": "Edge distance to last pile row",
      "value": "775",
      "unit": "",
      "appliesTo": "lower foundation block (bottom edge)"
    },
    {
      "label": "Scale of half plans",
      "value": "1:300",
      "unit": "",
      "appliesTo": "HALF PLAN SHOWING DECK LEVEL / FOUNDATION LEVEL"
    },
    {
      "label": "Scale of key plan",
      "value": "1:2000",
      "unit": "",
      "appliesTo": "KEY PLAN"
    },
    {
      "label": "Proposed chainage",
      "value": "64+412",
      "unit": "",
      "appliesTo": "proposed structure (key plan table)"
    },
    {
      "label": "Proposed span",
      "value": "2X40m",
      "unit": "m",
      "appliesTo": "proposed structure (key plan table)"
    },
    {
      "label": "Skew",
      "value": "30°",
      "unit": "",
      "appliesTo": "proposed structure (key plan table)"
    },
    {
      "label": "Chainage marker",
      "value": "64+400",
      "unit": "",
      "appliesTo": "key plan road"
    },
    {
      "label": "Chainage marker",
      "value": "64+500",
      "unit": "",
      "appliesTo": "key plan road"
    }
  ],
  "notes": [
    "C/L OF EXP. JOINT",
    "INDEPENDENT RETAINING WALL",
    "MEDIAN WALL PCC M15",
    "PROPOSED CH.: 64+412",
    "STRUCTURE TYPE: MJBR",
    "PROPOSED SPAN: 2X40m",
    "SKEW: 30°",
    "PROPOSAL: New Construction"
  ],
  "labels": [
    "HALF PLAN SHOWING DECK LEVEL",
    "HALF PLAN SHOWING FOUNDATION LEVEL",
    "(SCALE 1:300)",
    "KEY PLAN",
    "(SCALE 1:2000)",
    "TO KHANDWA",
    "TO DEWAS",
    "ROW",
    "RET./ TOE WALL",
    "Sipra River",
    "Earthen Drain",
    "Agricultural Land",
    "30° SKEW",
    "N / S / E / W (north arrow)",
    "...RRIER (partially cut, crash barrier)",
    "64+400",
    "64+500"
  ],
  "description": "This crop shows the right-hand portion of a bridge general-arrangement sheet: the tail end of the HALF PLAN SHOWING DECK LEVEL (scale 1:300) with 30° skew, girder/bearing lines at 3500 spacing and 5000 typical crash-barrier spacing, adjoining the HALF PLAN SHOWING FOUNDATION LEVEL which shows two skewed pile caps, each 16550 wide with circular piles at 3750 centres and 775 edge distances, separated by a PCC M15 median wall and terminated by independent retaining walls. The span between P1 and abutment A1 is dimensioned 40000 square / 46189 skew, with the centre line of the expansion joint at A1 and traffic direction to Khandwa. A KEY PLAN (1:2000) at top right locates the proposed structure at CH 64+412, a 2x40 m MJBR with 30° skew, new construction, crossing the Sipra River / earthen drain between chainages 64+400 and 64+500, with ROW lines and retaining/toe walls indicated."
}

p01_r01 key planPlan

  • Earthen drain / river channelmeandering channelKey plan shows 'Sipra River' and 'Earthen Drain' labels with contours.

40000(SQ) 46189(SK) Span length (square) / (skew)30° Skew angle1275 Edge/offset dimension3500 Beam/bearing spacing (typical string)16550 Overall width1275 Offset dimension1275 Offset dimension3500 Beam/bearing spacing+18 more