# Sovereignty Module: Lay the Stone

## Complete Cobblestone and Paving: From Quarry to Road

Paved surfaces enable transportation, commerce, and sanitation. This campaign covers stone selection, road building, cobblestone laying, drainage, and maintenance.

### Chapter 1: Paving Materials

| Material | Durability | Cost | Difficulty | Drainage | Best For |
|---|---|---|---|---|---|
| Cobblestone (natural) | Excellent (centuries) | Low (if local) | Moderate | Good (joints) | Roads, paths, plazas |
| Brick (fired clay) | Very good | Moderate | Moderate | Good (joints) | Paths, patios, floors |
| Flagstone (flat stone) | Excellent | Low-moderate | Low-moderate | Moderate | Paths, patios |
| Gravel (compacted) | Moderate | Very low | Very low | Excellent | Roads, paths |
| Crushed stone | Good | Low | Low | Very good | Roads, foundations |
| Corduroy (log) | Low (5-10 years) | Very low | Low | Poor | Swampy areas, temporary |

### Chapter 2: Cobblestone Road Construction

| Layer | Material | Thickness | Purpose |
|---|---|---|---|
| Subgrade | Native soil (compacted) | N/A | Foundation |
| Sub-base | Large crushed stone (4-6 inch) | 6-12 inches | Load distribution |
| Base | Smaller crushed stone (1-2 inch) | 4-6 inches | Leveling, drainage |
| Setting bed | Coarse sand | 1-2 inches | Cushion, leveling |
| Pavers | Cobblestones or brick | 4-8 inches | Wearing surface |
| Joint fill | Sand or sand-cement mix | Fill joints | Lock pavers, prevent shifting |

Construction sequence: 1) Excavate road bed to required depth (12-24 inches below finished grade). 2) Crown the subgrade (center higher than edges for drainage). 3) Compact subgrade thoroughly. 4) Lay sub-base layer (large crushed stone). 5) Compact sub-base. 6) Lay base layer (smaller crushed stone). 7) Compact base. 8) Spread setting bed (coarse sand, 1-2 inches). 9) Screed sand to uniform thickness. 10) Place cobblestones tightly (tap into sand with rubber mallet). 11) Maintain crown (center 1-2 inches higher per foot of width). 12) Fill joints with sand (sweep into cracks). 13) Compact finished surface. 14) Sweep additional sand into joints as they settle.

### Chapter 3: Drainage

| Drainage Feature | Purpose | Construction | Location |
|---|---|---|---|
| Crown (camber) | Sheet flow to edges | Center 2-4 inches higher than edges | Road surface |
| Side ditches | Collect runoff | V-shaped or trapezoidal channels | Both sides of road |
| Culverts | Cross drainage | Stone, pipe, or timber | Under road at low points |
| French drain | Subsurface drainage | Gravel-filled trench with pipe | Below road bed |
| Catch basins | Collect surface water | Stone or concrete box | At low points |

### Chapter 4: Path and Patio Construction

Flagstone path: 1) Lay out path with string or hose (natural curves look best). 2) Excavate 4-6 inches deep. 3) Compact subgrade. 4) Lay 2-3 inches of crushed stone base. 5) Compact base. 6) Spread 1 inch of sand. 7) Place flagstones (fit like puzzle pieces). 8) Maintain 1/2 to 1 inch joints between stones. 9) Fill joints with sand, gravel, or plant ground cover. 10) Compact and sweep additional sand into joints.

### Chapter 5: Maintenance

| Task | Frequency | Purpose | Method |
|---|---|---|---|
| Sweep sand into joints | After rain, seasonally | Maintain joint fill | Broom, sand |
| Re-level settled pavers | As needed | Prevent tripping | Lift, add sand, replace |
| Clear drainage | Seasonally | Prevent water damage | Shovel, rake ditches |
| Repair culverts | Annually | Maintain cross-drainage | Inspect, clear, rebuild |
| Weed control | As needed | Prevent root damage | Pull, vinegar, salt |

### Reference Card

1. Drainage is more important than the surface (a well-drained gravel road outlasts a poorly drained cobblestone road; always build drainage first). 2. Crown the road (the center of the road must be higher than the edges so water flows off; without crown, water pools and destroys the road). 3. Compact every layer (each layer of the road bed must be compacted before the next is added; uncompacted layers settle unevenly and create ruts). 4. Cobblestones last centuries (properly laid cobblestones on a good base last 200-500 years; Roman cobblestone roads are still in use today). 5. Sand locks the pavers (sand swept into the joints between pavers creates interlocking friction; without joint fill, pavers shift and the surface fails). 6. Culverts prevent washouts (water flowing across a road destroys it; culverts carry water under the road at every low point). 7. Side ditches are essential (ditches along both sides of the road collect runoff and carry it away; without ditches, water saturates the road bed). 8. A good road enables everything (trade, communication, defense, and community all depend on reliable roads; road building is one of the most impactful infrastructure investments).