This is some thinking on the design and costs of Fortifications, Roads and Bridges, and other fixed objects.

### Garrison SpaceEdit

It takes 30-50 sqft of space to house 2 infantry soldiers

- minimum is a 2' wide, 6' long bunk with 2' of space to the next cot and 2' of walk space at the foot of the cot. Bunks are stacked 2 high.
- reasonable is a 2.5', 6' bunk with 2' of space to the next cot and ~3' of walk space at the foot of the cot.
- maximum is is a 2.5', 6' bunk with 2' of space to the next cot and ~5' of walk space at the foot of the cot. Some of this space might be repurposed for other things (eating spaces, armories, etc).

Cavalry stables require 12'x16' (a 12'x12' stall and 4' for walk space in front of it, 200 sqft) per horse and cannot have more than 1 level.

Building | Garrison | Spacing | Floors | Interior Area | Required walls | Weight (tons) | HP |
---|---|---|---|---|---|---|---|

Square Tower | 120 | Reasonable | 4+Basement | 500 sqft | 4x25'x36' | 3300 | 1500 |

Long Barracks | 120 | maximum | 3 + Basement | 1000 sqft | 2x20'x27' + 2x50'x27' | 1135 | 1050 |

Small stable | 20 | stables | 1 | 4000 sqft | 2x32'x20' + 2x120'x20' | 1850 | 1250 |

Large stable | 50 | stables | 1 | 20000 sqft | 2x32'x20' + 2x300'x20' | 4000 | 1600 |

In all cases, add the width of the walls to the length of the walls to account for corners. (ie, a square tower with 10' walls requires 4 walls, 35' by 36', and has a footprint of 45' by 45'.)

## Typical WallsEdit

Wall Type | Material and Thickness | Cost per square foot (height x length) | Weight (lbs) | DR | HP per 10 sq ft |
---|---|---|---|---|---|

Curtain | 3' of concrete, 15' packed earth, 3' of concrete | $900 | 1800 | 830* | 235 |

Tower | 3' of concrete, 4' packed earth, 3' of concrete | $800 | 1300 | 700* | 190 |

Stronghold | 1' of brick, 1' packed earth, 1' of brick | $100 | 600 | 205* | 150 |

Perimeter | 2' of concrete | $250 | 1115 | 215* | 180 |

Palisade | 1' of wood | $15 | 64 | 24 | 70 |

Ditch (Up to 5' deep) | 1' wide, tamped earth sides | $0.1 | |||

Hole (6-20' deep) | 1' wide, tamped earth sides | $0.2 | |||

Moat or Basement wall | 3" of packed earth, 2" of brick | $10 | |||

Bridge Pylon (20' by 20') | 3' of concrete, 14' of packed earth, 3' of concrete | $27K per 1' of height | 253950 | 815* | 255 |

## Typical ConstructionEdit

### Simple StrongholdEdit

- 45' Square Tower with 10' walls: 3300 tons, $4.53M
- Frestanding small stable with brick stronghold walls: 1825 tons, $0.25M
- 130' square perimeter walls, 12' tall: 3500 tons, $1.56M

Houses 120 + 20 horses, $6.34M

### Basic CastleEdit

- 6 long barracks, brick stronghold walls, 1 long wall against a curtain wall: 250 tons each, $1.5M
- 4 Large stables, brick stronghold walls, 1 long wall against a curtain wall: 750 tons each, $3M
- 7 45' square towers with 10' walls (one at each corner, one in the middle of each long wall, one is a gatehouse): 3300 tons each, $31.71M
- 2 curtain walls, 150', and 2 curtain walls, 600', all 30' tall: 4000 and 16000 tons, $40M

Houses 1200 + 200 horses, $76.21M

### Military RoadEdit

Per mile.

- Hole: 1' deep ditch, 14' wide, 5280' long: $7.5K
- Bed: 10" of packed earth, 14' wide, 5280' long: $630K
- Gravel: 1" of rubble, 14' wide, 5280' long: $285K
- Curbs: 2x 4" by 4" of packed earth, 5280' long: $12K

Total is $940K per mile.

### Imperial HighwayEdit

Per Mile

- Hole: 3' deep ditch, 25' wide, 5280' long: $40K
- Base: 1.5' of packed earth, 25' wide, 5280' long: $2M
- Bed: 1' of rubble, 25' wide, 5280' long: $6M
- Surface: 6" of brick, 25' wide, 5280' long: $3M
- Curbs: 2x 4" by 4" of brick, 5280' long: $50K

Total is $11.1M per mile.

### Short BridgeEdit

600' long, spans 400', 12 arches, rises 30'.

- 4 20' deep by 20' square holes: $1.6K each, 6.4K total.
- 8 30' deep by 20' square holes, underwater: $8K each, $64K total.
- 4 pylons, 20' square and 35' tall: $950K and 4500 tons (1660 HP) each, $3.8M total.
- 8 pylons, 20' square and 100' tall, half underwater: $8.1M and 13000 tons (2350 HP) each, $65M total.
- 18 half-arches (triangles), roughly 20' wide, 10' tall, and 20' long, concrete: $240K each, $4.3M total
- Road surface: 6" of brick, 20' wide, 620' long: $3M

Total is $81.5M.

### Long BridgeEdit

900' long, spans 700', 24 arches, rises 50'.

- 4 20' deep by 20' square holes: $1.6K each, 6.4K total.
- 8 30' deep by 20' square holes, underwater: $8K each, $64K total.
- 12 40' deep by 20' square holes, underwater: $12K each, $144K total.
- 4 pylons, 20' square and 35' tall: $950K and 4500 tons (1660 HP) each, $3.8M total.
- 8 pylons, 20' square and 100' tall, half underwater: $8.1M and 13000 tons (2350 HP) each, $65M total.
- 12 pylons, 20' square and 125' tall, half underwater: $10M and 16000 tons (2550 HP) each, $120M total.
- 42 half-arches (triangles), roughly 20' wide, 8' tall, and 15' long, concrete: $144K each, $6M total
- Road surface: 6" of brick, 20' wide, 930' long: $4.5M

Total is $200M

## MagicEdit

Control Earth can be used to help build a castle.

Control Level | Max Weight | Cu ft | Time to lift (s) | Troop Skill |
---|---|---|---|---|

3 | 90 | 1/2 | 7 | Good |

4 | 160 | 1 | 5 | Crack |

5 | 250 | 1.5 | 4 | Elite |

6 | 360 | 2 | 3 | Elite |

Time to lift is the amount of time it takes to move a max weight of stone 10 yds vertically and 10 yards horizontally (representing moving from a random outcrapping to the top of a wall).

Building | Volume | Good Time | Crack Time | Elite Time |
---|---|---|---|---|

45' square tower | 50K cuft | 25 days | 9 days | 3 days |

Simple Stronghold | 63K cuft | 31 days | 12 days | 4 days |

Basic Castle | 1250K cuft | 625 days 28 months | 225 days 10 months | 75 days 4 months |

These build times depend on the castle being built on a stone quarry or equivalent, with stone being supernaturally pulled from the ground and moved immediately into the walls. Assuming the spellcaster's wages of $60K/month, a Good quality spellcasting unit reduces the cost of a simple castle by 95%.

If a castle is built on defensible position without an excellent source of rocks underneath it, spellcasters can speed quarrying without approaching these speeds. A unit of Good quality or better spellcasters devoted to building a castle quadruples the effectiveness of any money spent on building the castle that month, exclusive of the cost of the spellcaster.

*Example*: A modern fortress has a minimum build time of 12 months and costs $100M. Normally, a builder would spend $8.5M/month for 12 months to build a fortress. For $2.06M/month, the same fortress can be built in 12 months for total of $26M.

## RulesEdit

Fortification | DB | Capacity | Base Cost | Build Time | Minimum Build Time |
---|---|---|---|---|---|

Simple Stronghold | +4 | 120 | $6M | 12K man-months (6 months) | 2 months |

Basic Castle | +6 | 1200 | $80M | 152K man-months (7 years) | 12 months |

Modern Fortress | +8 | 1200 | $160M 2*$80M | 200K man-months (13 years) | 15 months |

Modern Citadel | +9 | 2400 | $300M 2.5*1.5*$80 | 360K man-months (25 years) | 24 months |

Build times are based on spending $1M a month.

Extra capacity increases cost by 50% for each increase of base capacity (ie, a Modern Fortress that houses 3600 costs $200M). Reduced capacity costs 70% of normal for half capacity, 50% of normal for quarter capacity.

Increasing DB increases costs by 50% per DB increase. Calculate this after calculating the cost for increased or reduced capacity.

Fortifications are usually purchased on a month to month basis. Each man-month of labor costs $0.5K. A modern citadel with a completion date of 7 years costs $2.15M per month for 84 months or $10M for 18 months.