c/dredge-operators

Question about a sudden suction line blockage in the Missouri River

We were running a 12 inch cutterhead near Jefferson City last spring when the whole dredge shuddered and the pump pressure spiked. The intake screen had gotten a whole tangle of willow roots and a plastic tarp wrapped around it in about 30 seconds. I had to shut down, reverse the pump to clear the line, and then two of us spent an hour with knives cutting the mess off the screen. Has anyone else had to deal with a weird mix of natural and man-made junk clogging things up that fast?

For years I ran my cutterhead at 1200 rpm on sandy bottoms because the manual said it was fine. A job on the Missouri last spring proved me wrong.

Warning: I tried using a different pump sealant on the main dredge pump and it almost cost me a day of work.

We were doing a channel clearing job on the Ohio River last month and ran out of our usual heavy duty pump sealant. The supply boat had a different brand, the kind in the blue tube, so I figured it was worth a shot. Big mistake. About two hours into running, the pump started overheating and we had to shut down. When we pulled it apart, the sealant had basically turned to a gummy paste and wasn't holding at all. We lost nearly half a day cleaning everything out and waiting for the right stuff to get delivered by truck. I learned that not all 'marine grade' sealants are made for the constant pressure and grit we deal with. Has anyone else had a bad experience with a specific brand of sealant they thought would work?

Question about map checks before starting a job

I always rushed through them to get to work faster. A coworker's story about digging in the wrong spot made me take them seriously now.

Why are home drainage solutions so weak compared to dredge gear?

Seriously, those store-bought pumps for wet basements are junk. I used my backup dredge pump last spring and it cleared three inches of water faster than I could mop.

Update: Ditching the old school cutters for a new jet system was my best move

Those rotary cutters just tear up the bottom and make a mess. The high-pressure jet leaves a clean trench and way less backfill. My last job finished three days early because of it.

Warning: My neighbor was sure our dredge was a monster from the deep.

He called the cops convinced we had buried treasure.

Question about clearing tree roots from our creek dredge site

Our local council hired us to dredge Miller's Creek after last spring's floods. The bottom has decades-old tree roots from eroded banks. When we run the dredge, roots wrap around the cutter and stall the engine. I got tired of pulling it apart, so I rigged up a coarse steel mesh from an old fence panel. I bolted it to the front of the suction head. It catches roots over an inch thick but lets silt through. We clean it a few times a day, and it has cut our cleanup time in half. Maybe this could help others in woody areas.

Question about bringing your cousin onto the dredge team

My uncle keeps pushing me to hire his son, but the kid has zero respect for safety protocols. I think family on the job is a huge risk if they won't listen... it just creates more problems than it solves. Do you ever say no to relatives wanting a spot on your crew?

Ngl, it hit me why my suction hose keeps losing prime in shallow water

Honestly, I was fighting with it for hours on a job last week. Tbh, I finally noticed the angle of the intake was too steep, letting in air. How do you set up your hose in tricky spots?

Check your hose clamps before the next shift, seriously

I was running the dredge in some shallow water yesterday and everything seemed normal. Then I noticed a slow drip coming from near the pump connections. Upon closer look, one of the hose clamps was loose, almost off. It must have vibrated free over time. Another hour and we might have had a major spill on our hands. I tightened it up and checked all the others, finding two more that were not fully secure. This is such an easy thing to miss during a quick walk around. Do yourself a favor and give all clamps a good twist before you start. It takes two minutes and could save you a huge mess.

TIL my neighbor's quiet observation saved me from a pump seal blowout...

I was prepping the dredge for a big channel job, rushing to get everything set before dark. My neighbor Frank, who used to work on river barges, was watching from his porch... he doesn't say much usually. As I was tightening the last fitting, he just called out, 'You check that weep hole?' I hadn't, because the pump looked fine from the outside. Later that night, I went back and saw it was totally clogged with silt. If I'd started up, the pressure would've blown the main seal for sure. Now I always take a second to listen to folks who've been around... even if they're not on the crew. It's funny how a simple question from someone watching can change your whole approach.