Ley Infrastructure

Ley Infrastructure covers the large engineered systems used to access natural ley currents, transmit regulated magical power across distance, divide that transmission into regional branches, and hand it into local distribution systems.

The Great Leyline Conduits of the Age of Wonders were networks composed of many separate pieces of infrastructure rather than one enormous machine or magic item. Their transmission model used continuous Conductive pathways, with Galarium concentrated at deliberate points where power needed to be regulated, monitored, isolated, divided, or transferred between different scales of infrastructure.

A complete regional route can therefore combine several different Plans rather than using one universal Great Leyline Conduit Formula.

Leyline Intake Station

Engineering Category: Major Engineered System
Reference Project Value: 25,000 gp
Material Cost: 12,500 gp
Project Labor: 2,500 specialist workdays
Typical Crew: Approximately 12 to 20 qualified workers
Required Primary Tool: Tinker's Tools
Required Primary Skill: Arcana
Required Site: Surveyed accessible ley current
Plans Required: Site-specific Leyline Intake Station Plans

A Leyline Intake Station creates a controlled engineered interface with an existing natural ley current.

The Station does not create magical power. Its purpose is to access energy already moving through the ley current, regulate the amount drawn, monitor the source and machinery, isolate faults, and deliver a usable regulated output into constructed transmission infrastructure.

Reference Architecture

The standard substantial single-current design uses:

Ley Coupling Array: 4 purpose-refined coherent Galarium Cores with a minimum aggregate Value of 6,000 gp. The Cores require the Conductive and Regulating Properties.

Primary Regulator Bank: 2 Major Galarium Regulator Core Assemblies worth 1,000 gp each. These require Conductive, Regulating, and Retentive Galarium.

Arcane Matrix Nodes: 8, with a total Value of 480 gp.

Harmonic Quartz: 4 lb., worth 160 gp.

Conduit Glass: 10 lb., worth 1,000 gp.

Conventional Construction and Support: 2,860 gp.

Safe Draw

Every Intake Station requires a site-specific Safe Draw Specification.

There is no universal amount of magical energy that every ley current can safely provide. The appropriate draw depends on the current's strength, geometry, stability, local conditions, existing damage, and the Station's engineering.

Responsible operation within the established Safe Draw should not normally cause serious lasting harm to a healthy ley current.

Unsafe overdraw, poor Regulation, damaged coupling, severe magical instability, or deliberate manipulation can create much greater risks.

Ley Access and Redirection

Accessing a ley current is not the same as redirecting it.

The standard Leyline Intake Station draws controlled power from a current while allowing the natural current itself to continue along its existing course.

Its normal operation does not create a ley line, stop one, strengthen one, redirect one, or repair an already damaged current.

Primary Transmission Trunk

Engineering Category: Engineered System
Reference Unit: 500 feet
Internal Service Sections: 5 sections of approximately 100 feet
Transmission Channels: 4 parallel Conductive channels
System Value: 12,000 gp per reference segment
Material Cost: 6,000 gp
Project Labor: 1,200 specialist workdays
Required Primary Tool: Tinker's Tools
Required Primary Skill: Arcana
Plans Required: Primary Transmission Trunk, Standard Segment

The Primary Transmission Trunk is the principal long-distance pathway used by a Regional or Great Leyline Conduit.

It receives already regulated magical power and carries that power through continuous Conductive pathways toward another control point or destination.

Required Materials

Conduit Glass: 30 lb., worth 3,000 gp.

Glassteel: 40 lb., worth 1,200 gp.

Conventional Structural and Route Materials: 1,800 gp.

Conduit Glass forms the primary magical transmission pathways.

Glassteel provides structural support, protection, visibility, inspection access, and durable housings around the Conductive network.

Service Sections

Each 500-foot reference segment is divided into approximately five 100-foot service sections.

These sections provide:

• serviceable Conductive joints

• structural support and protection

• maintenance access

• channel isolation

• route identification and inspection access

Individual Conductive channels can be isolated where the section architecture permits. An entire service section can also be disconnected when necessary.

If one channel becomes unavailable, the remaining channels can sometimes continue at reduced service where upstream supply, downstream demand, and Regulation allow it.

There is no universal rule that each of the four channels carries exactly one-quarter of the Trunk's safe capacity.

Transmission Only

An ordinary Primary Trunk segment contains no required Galarium Regulator Core Assembly, Arcane Matrix Nodes, or Harmonic Quartz.

Those technologies are concentrated at dedicated control points.

The Trunk itself transmits power. It does not generate power, access a natural ley current, perform local facility distribution, or independently regulate every short length of the route.

Regulator Station

Engineering Category: Engineered System
System Value: 15,000 gp
Material Cost: 7,500 gp
Project Labor: 1,500 specialist workdays
Standard Input: One four-channel Primary Transmission Trunk
Standard Output: One four-channel Primary Transmission Trunk
Required Primary Tool: Tinker's Tools
Required Primary Skill: Arcana
Plans Required: Great Leyline Conduit Regulator Station

Regulator Stations are positioned at important points along long-distance transmission routes.

Their purpose is to bring incoming transmission back within controlled operating conditions before sending it onward.

Required Materials and Components

Transmission Regulator Core Assemblies: 2, worth 3,000 gp total. Each requires Conductive, Regulating, and Retentive Galarium.

Arcane Matrix Nodes: 8, worth 480 gp total.

Harmonic Quartz: 6 lb., worth 240 gp.

Conduit Glass: 20 lb., worth 2,000 gp.

Glassteel: 10 lb., worth 300 gp.

Conventional Materials: 1,480 gp.

Functions

A Regulator Station provides transmission Regulation, channel balancing, monitoring, fault isolation, short operational buffering, controlled restart, and limited reduced-service maintenance bypass.

It can isolate individual channels, Regulator assemblies, incoming transmission, outgoing transmission, or the Station as a whole when its design permits.

Retentive Galarium provides only short operational buffering. The Station is not a long-duration magical battery.

It cannot recreate magical power lost through a damaged or interrupted route, and it does not provide a full unregulated bypass around its own Regulation architecture.

Regulation Point Spacing

Long-distance routes do not place Regulator Stations at one universal fixed interval.

Route planning instead uses Regulation Points, which can include a Leyline Intake Station, dedicated Regulator Station, suitably designed Junction Station, or Distribution Terminal.

The appropriate distance between Regulation Points depends on transmission load, magical stability, route complexity, Junction density, maintenance requirements, redundancy, and strategic importance.

The ordinary planning assumption is approximately 4 to 5 miles between full Regulation Points, but this is guidance rather than a hard limit.

A difficult route can require much closer Regulation. A highly stable route under moderate load can sometimes support a longer interval.

Junction Station

Engineering Category: Engineered System
System Value: 20,000 gp
Material Cost: 10,000 gp
Project Labor: 2,000 specialist workdays
Reference Input: One four-channel Primary Transmission Trunk
Reference Outputs: Two major regulated routes
Counts as Full Regulation Point: Yes
Required Primary Tool: Tinker's Tools
Required Primary Skill: Arcana
Plans Required: Great Leyline Conduit Junction Station

A Junction Station is used where major transmission routes must divide, merge, isolate, or redirect power within the constructed network.

Required Materials and Components

Junction-Specification Galarium Regulator Core Assemblies: 2, worth 4,000 gp total.

Arcane Matrix Nodes: 10, worth 600 gp.

Harmonic Quartz: 8 lb., worth 320 gp.

Conduit Glass: 30 lb., worth 3,000 gp.

Glassteel: 16 lb., worth 480 gp.

Conventional Infrastructure: 1,600 gp.

Functions

A Junction can split available transmission between outgoing routes, isolate individual routes, regulate those outgoing routes, and merge compatible regulated routes when the Junction was designed for that purpose.

A Junction does not multiply magical power.

If one incoming route carries a particular amount of usable power, dividing it among several outgoing routes divides the available supply rather than duplicating it.

Merging routes also requires purpose-designed compatibility and Regulation. Two arbitrary magical supplies cannot simply be joined together.

Conduit Tap

A Conduit Tap draws a controlled branch from an already engineered transmission route.

It does not access a natural ley current directly.

A proper Tap requires:

• a Conductive interface

• branch Regulation

• monitoring

• isolation

Minor Branch Tap

A Minor Branch Tap can support one modest Branch Conduit where constructing a complete Junction Station would be disproportionate.

It is most appropriate where expected demand is moderate and the route requires no major merging, regional intersection, or complicated rerouting.

A Minor Branch Tap normally provides branch shutdown, monitoring, Regulation, and isolation from the Primary Trunk.

It does not automatically count as a full Primary Trunk Regulation Point unless its individual Plans include full trunk-level Regulation.

The main transmission route therefore continues to follow its existing Regulation Point plan.

Branch Conduit

Engineering Category: Engineered System
Reference Unit: 500 feet
Internal Service Sections: 5 sections of approximately 100 feet
Transmission Channels: 2
System Value: 7,000 gp per reference segment
Material Cost: 3,500 gp
Project Labor: 700 specialist workdays
Required Primary Tool: Tinker's Tools
Required Primary Skill: Arcana
Plans Required: Branch Conduit, Standard Segment

A Branch Conduit provides lower-capacity long-distance transmission from a Junction Station, Minor Branch Tap, or another compatible regulated route toward a secondary destination.

Required Materials

Conduit Glass: 16 lb., worth 1,600 gp.

Glassteel: 24 lb., worth 720 gp.

Conventional Materials: 1,180 gp.

Capacity

A Branch Conduit has less safe transmission capability than the standard four-channel Primary Trunk.

Its two channels do not mean it has exactly half the capacity of a Primary Trunk.

Safe capability depends on channel dimensions, expected load, Regulation architecture, route conditions, and the specifications used during construction.

If one Branch channel becomes unavailable, the remaining channel can sometimes maintain substantially reduced service. It should not be treated as normal full-capacity operation.

Long Branch Conduits use the same Regulation Point planning principles as Primary Trunks.

Distribution Terminal

Engineering Category: Installation
Finished Value: 8,000 gp
Material Cost: 4,000 gp
Project Labor: 800 specialist workdays
Counts as Final Regulation Point: Yes
Required Primary Tool: Tinker's Tools
Required Primary Skill: Arcana
Plans Required: Distribution Terminal

A Distribution Terminal marks the boundary between long-distance transmission and local distribution.

The normal relationship is:

Regional Conduit
↓
Distribution Terminal
↓
Local Arcane Distribution Station

The Terminal takes trunk-level transmission, performs final Regulation and isolation, conditions the output, and provides a controlled interface for downstream local infrastructure.

Required Materials and Components

Terminal-Specification Galarium Regulator Core Assembly: 1, worth 1,500 gp. Requires Conductive, Regulating, and Retentive Galarium.

Arcane Matrix Nodes: 6, worth 360 gp.

Harmonic Quartz: 4 lb., worth 160 gp.

Conduit Glass: 12 lb., worth 1,200 gp.

Glassteel: 8 lb., worth 240 gp.

Conventional Materials: 540 gp.

Functions

The Terminal provides final trunk Regulation, transmission isolation, local output conditioning, incoming and outgoing monitoring, a local-distribution interface, and controlled restart.

The standard Terminal provides one regulated local-distribution interface.

That output can feed a Local Arcane Distribution Station or another compatible local System designed to accept it.

The Terminal does not normally replace full local distribution infrastructure. It does not automatically provide multiple facility branches, workshop connections, end-use charging, or specialized magical conversion.

A small purpose-built facility can sometimes receive Terminal output directly when its demands are limited and its Plans support that arrangement.

Route Planning

A Regional Leyline Conduit is planned as a route assembled from appropriate infrastructure rather than as one giant craftable object.

A typical project can include:

Leyline Intake Station
+
Primary Transmission Trunk
+
Regulation Points
+
Junctions and Branches
+
Distribution Terminal
+
route-specific civil works
+
route-specific magical works

The combined result determines the project's final engineering Value, Material Cost, and labor requirement.

Route-Specific Works

The standard transmission prices assume uncomplicated prepared terrain.

Additional work can be required for difficult crossings, major bridges, viaducts, tunnels, underwater construction, unstable ground, fortified galleries, heavy excavation, magical hazards, planar anomalies, or other exceptional conditions.

Those costs are added separately rather than hidden inside the ordinary Trunk or Branch price.

Land acquisition, taxation, political concessions, military occupation, settlement construction, and unrelated civic works are not normally part of the engineering Project Value.

Project Labor

Engineering labor is measured in specialist workdays, but large infrastructure projects are not expected to be completed by a single crafter.

Multiple crews can work simultaneously on different route sections, Components, civil works, and installations.

Only the project's lead arcane and engineering roles necessarily require the full Arcana and technical qualifications of the Plans. Much of the physical fabrication and construction can be performed by appropriately skilled glassworkers, smiths, masons, surveyors, structural artisans, and other qualified workers.

Modern Construction

The engineering principles behind Ley Infrastructure remain understandable in 741 U.R., but no true Great or Regional Leyline Conduit has been successfully restored.

Modern reconstruction is therefore possible in principle but represents an exceptional regional project rather than ordinary infrastructure construction.

Individual Components, smaller engineered systems, and surviving sections of ancient conduit technology remain considerably more accessible than rebuilding an entire network.