Stone Arch Tunnel
| Stone Arch Tunnel | |
|---|---|
| |
| Vital statistics | |
| Size (obj)Structure footprint in tile units.<br><br><i>Rounded-up from source.<br>Source: 0.1 x 0.1</i> | 0.1 x 0.1 |
| Skill(s) RequiredSpecific needed skills that enable a given object or item. | Mining |
| Discovery Req.This(<i>discoveryreq</i>) is only for items that need to be discovered in addition to items listed in "Object(s) Required"/<i>(<i>objectsreq</i>).</i><small><br><b><i>(Temporary active on all pages, but leave empty if "None".</i></b><small> | (None or Unknown) |
| Object(s) Required | Stone x50, Nugget of Hard Metal x5 |
| Repaired With | Stone |
| Can be Lifted | No |
| Go to Objects | |
Build > Buildings & Construction > Mine Construction > Stone Arch Tunnel
Stone Arch Tunnels are mining support structures which prevent cave-ins in a 3x15 tile radius.
Stone Arch Tunnels are the third tier of tunnel supports that stands aside of Mining support/columns:
- Timber Tunnel: 1x4 Tile Radius
- Reinforced Tunnel: 2x8 Tile Radius
- Stone Arch Tunnel: 3x15 Tile Radius
- Mine Support: 9 Tile Radius
- Stone Column: 11 Tile Radius
- Mine Beam: 13 Tile Radius
- Monumental Column: 30 Tile Radius
Note: Mined tiles will still show dust animation (see Mining page) when under the radius of the support, to warn of cave-in tiles, but caveins won't occur under support.
Stone Arch Tunnel takes damage every time it prevents a cave-in. If not taken care of, this can eventually result in destruction of the Stone Arch Tunnel which triggers a massive cave-in.
Caution: whenever any mine support is removed, all tiles under it are checked for unstable mine tiles. If there are unstable tiles within range, which are now, with the removal of the mine support, unsupported, the removal will cause a cave in. This means that you can now tear down mine supports without cave ins, if you still have proper support around it
Game Development
- Coq au Arch (2026-04-23)◎ >"Added "Stone Arch Tunnel", a larger tunnel made from stone."
- Coq au Arch (2026-04-23)◎ >"Character should no longer stop auto-mining when not planning to mine out unsupported tiles. Notable that the character would sometimes stop for no reason when excavating tunnels."