Chapter 115: Let’s Do This Part 1
The following morning, Ernest arrived at Helmarte Machine Works with the rolled plans for the Oriel Hydroelectric Station tucked beneath one arm.
For once, he did not walk toward the telegraph laboratory, where glass bulbs, copper coils, and exhausted assistants had become part of the usual scenery. He did not head for the machine halls either, where lathes screamed against steel and hammers struck hot iron from dawn until dusk. He also avoided the offices, where merchants, supervisors, and accountants waited with contracts, invoices, production reports, and problems they expected him to solve before lunch.
Instead, he crossed the eastern yard and entered the engineering conference room above the factory’s administrative wing.
The room overlooked the busiest side of the complex. From its tall windows, one could see wagons unloading coal, apprentices pushing handcarts of machined parts, and laborers carrying timber across the yard. Steam drifted from roof vents in pale ribbons. Somewhere below, a flywheel turned with a steady rhythm that could be felt through the floorboards.
Ernest placed the plans on the long table.
Ideas were pleasant on paper.
They became expensive when stone, iron, labor, and weather were involved.
For this, he needed builders.
The room filled over the next fifteen minutes.
Master Mason Edwin Clarke arrived first, carrying three notebooks and a charcoal pencil tucked behind one ear. He was a thick-armed man in his late forties with hands rough enough to sand wood by touch. Over the last two years, he had overseen most of Helmarte’s warehouse expansions, foundation works, retaining walls, drainage channels, and factory additions. If a building in the complex stood straight through wind and rain, Clarke had likely shouted at someone during its construction.
Samuel Wren came next, one of Helmarte’s civil engineers. He carried survey notes from the Oriel estate, including rough grade measurements, soil descriptions, and sketches of the stream valley. Thomas Mercer from the structural division entered behind him with a steel ruler, a folded section drawing, and the permanent expression of a man who expected bad news from every calculation.
Two surveyors followed with maps under their arms.
Hollen arrived last.
The older man sat down, looked at the gathered men, then turned toward Ernest with calm suspicion.
"I see you’ve gathered another group of people whose lives are about to become more difficult."
Ernest did not answer at once.
Mostly because Hollen was correct.
He walked to the front of the room and set one hand on the rolled plans.
"Gentlemen, we are going to construct a hydroelectric station."
The room went silent.
Several men blinked.
Master Clarke leaned back slightly. "A what station?"
"A hydroelectric station."
The clarification helped no one.
Ernest took a breath. "We will use falling water to drive machinery that generates electricity."
The silence deepened.
Hollen raised one hand. "I understood the part about water."
"That is already a good start."
"I am not comforted."
Ernest unrolled the main site plan across the table and placed brass weights at the corners to keep the parchment flat. The drawing showed the Oriel stream, the slope of the land, the intake, the buried penstock route, and the powerhouse near the estate boundary. Beside it were elevation profiles, foundation sections, masonry details, and rough material quantities.
"You do not need to understand the electrical theory to build the station," Ernest said. "That is my responsibility. What I need from you is accurate stonework, stable foundations, sound drainage, and a buried pipe route that will not shift, crack, or tear itself apart under pressure."
That brought the men back to familiar ground.
Master Clarke leaned over the plan.
"Start with the water."
Ernest nodded and pointed upstream. "Here. We build a low diversion weir across the stream. Four meters high at the deepest point, stepped into both banks, with a stone apron downstream to prevent scour."
"A dam, then," Clarke said.
"Not a storage dam. We are not creating a reservoir. The purpose is only to raise the upstream water level enough to send a controlled portion of the flow into the intake channel."
Samuel studied the contour marks. "So the stream still passes over the crest when flow is high?"
"Yes. During normal flow, part of the water enters the intake. Excess water passes over the weir. During flood, the structure must survive overtopping without the downstream bed being eaten away."
Clarke tapped the drawing with one blunt finger. "Granite blocks?"
"Granite facing blocks with rubble core, lime mortar, and iron cramps where necessary. The upstream face will be dressed tighter. The downstream apron must be heavy enough that floodwater cannot lift or scatter it."
The mason grunted. "How wide?"
"Eight meters across the main channel, plus wing walls tied into both banks."
"That is not small."
"No."
"That is also not impossible."
"Good. I was hoping you would say that."
Clarke gave him a dry look. "I said it was not impossible. I did not say I liked it."
Ernest accepted that as agreement.
He moved his finger to the structure beside the weir. "This is the intake house. Stone walls, timber roof, iron gate frame. Inside will be a trash rack, a sluice gate, and a short settling basin."
Thomas frowned. "Trash rack?"
"An iron bar screen," Ernest said. "It keeps branches, leaves, stones, and floating debris from entering the penstock."
"Penstock?" one of the surveyors asked.
"The pressure pipe."
Thomas looked at the long line stretching across the plan.
"That pipe?"
"Yes."
"That is a very long pipe."
"Four hundred twenty meters from intake to powerhouse."
Master Clarke looked at the scale, then at Ernest. "And the diameter?"
"Seven hundred millimeters inside diameter."
The room became still again.
Samuel’s brows rose. "That is almost large enough for a child to crawl through."
"A small child, yes. Do not test that."
Hollen looked at the drawing with growing concern. "Why must it be that large?"
"Because water carries energy through both height and flow," Ernest said. "If the pipe is too narrow, friction steals too much of that energy before it reaches the turbine. A smaller pipe is cheaper to cast but more expensive in lost power. Seven hundred millimeters is the compromise."
Thomas leaned closer. "Cast iron sections?"
"Yes. Flanged sections where alignment is difficult. Bell-and-spigot joints with lead sealing where the trench is straight. We use thrust blocks at bends, anchor blocks on steeper grades, and drainage gravel below the pipe. I do not want the pipe sitting directly in clay."
Samuel nodded slowly. "Buried how deep?"
"Average cover of one and a half meters. Two meters where the ground allows. Less than that and frost becomes a risk. More than that and excavation slows too much."
Clarke opened one of his notebooks. "Four hundred twenty meters of trench, two meters deep in some sections, wide enough for men to set pipe and pack bedding. That is a large earthwork."
"It is."
"By hand?"
"With teams, winches, carts, horses, and every shovel Helmarte owns."
"That still means by hand."
"Yes."
The mason sighed and wrote something down. "You always find new ways to make simple words expensive."
Ernest smiled faintly. "That is engineering."
"No. That is punishment with drawings."
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