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CraftShape

Minecraft Bridge Arc Generator

The side profile of an arched bridge, row by row, plus the deck plan and separate block counts for the arch and the walkway.

Bridge Arc Generator — 41 x 13 blocks

Controls

Crossing

Crossing

blocks

Bank to bank, measured along the bridge.

blocks

A fifth to a third of the span looks best.

blocks

Height of the walkway above the arch springing point.

Structure

Structure

blocks
blocks

Bridge side profile

41 x 13 blocks · 815 blocks

Drag to pan, scroll or pinch to zoom, hover a cell for coordinates.

Deck plan (top down)

Building this with friends?

Launch a private Minecraft server, invite your team, and bring this blueprint to life together.

Read our plain-English guide first — no offer attached.

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Build summary

Span
41 blocks
Rise
10 blocks
Width
5 blocks
Blocks per slice
122
Arch blocks
610
Deck blocks
205
Build one slice of the profile, repeat it for the full width, then lay the flat deck on top.

Row-by-row instructions

  1. Row 1:place 41 blocks
  2. Row 2:place 2 blocks, leave 37 spaces, place 2 blocks
  3. Row 3:place 2 blocks, leave 37 spaces, place 2 blocks
  4. Row 4:place 2 blocks, leave 14 spaces, place 9 blocks, leave 14 spaces, place 2 blocks
  5. Row 5:place 2 blocks, leave 11 spaces, place 15 blocks, leave 11 spaces, place 2 blocks
  6. Row 6:place 2 blocks, leave 8 spaces, place 6 blocks, leave 9 spaces, place 6 blocks, leave 8 spaces, place 2 blocks
  7. Row 7:place 2 blocks, leave 6 spaces, place 5 blocks, leave 15 spaces, place 5 blocks, leave 6 spaces, place 2 blocks
  8. Row 8:place 2 blocks, leave 5 spaces, place 3 blocks, leave 21 spaces, place 3 blocks, leave 5 spaces, place 2 blocks
  9. Row 9:place 2 blocks, leave 3 spaces, place 3 blocks, leave 25 spaces, place 3 blocks, leave 3 spaces, place 2 blocks
  10. Row 10:place 2 blocks, leave 2 spaces, place 3 blocks, leave 27 spaces, place 3 blocks, leave 2 spaces, place 2 blocks
  11. Row 11:place 2 blocks, leave 1 space, place 2 blocks, leave 31 spaces, place 2 blocks, leave 1 space, place 2 blocks
  12. Row 12:place 4 blocks, leave 33 spaces, place 4 blocks
  13. Row 13:place 3 blocks, leave 35 spaces, place 3 blocks

How the arch profile is calculated

The arch follows a parabola: at every point along the span the generator works out how high the curve reaches, then keeps the blocks within the arch thickness below that line. Where the curve drops below the deck near the banks, vertical piers fill the gap so the structure carries its own weight visually.

Getting the proportions right

  • Rise ≈ span ÷ 5 — a long, elegant crossing suitable for wide rivers.
  • Rise ≈ span ÷ 3 — a bolder Roman look, good over ravines.
  • Rise > span ÷ 2 — very steep; usually better split into several smaller arches.

Build order

  1. Mark both banks and the centre of the span.
  2. Build one full slice of the profile, working up from both banks towards the crown.
  3. Repeat that slice across the width — every slice is identical.
  4. Lay the deck flat on top, then add kerbs, lanterns and railings.

Frequently asked questions

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