c/dredge-operators

An old timer's tip about swing speed saved my cutter head

Ran into a retired guy at a parts shop in Baton Rouge last month. He told me I was swinging too fast on hard packed clay, said to let the machine work slower and read the vibration. I figured he was just old school and ignored him. Then I burned through two sets of teeth in a week on the same stretch. Tried his way for a day and the cutter ran smoother, teeth lasted way longer. Anyone else get advice from a stranger that actually worked out better than what you learned on the job?

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smith.lee•6d ago

Hydraulic vs electric cutterhead on a 12 inch job in Tampa

I ran a 12 inch hydraulic cutterhead for three weeks on a marina project in Tampa and the torque was incredible, but the hydraulic oil temps kept creeping up by noon every day. My buddy swears by the electric drive on the same size rig and says it runs cooler with way less maintenance, so I'm weighing a swap before my next contract starts in two months. Anyone here made that switch and regretted it for mud and sand conditions, or is electric the better call for shallow draft work?

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waderamirez•9d ago

Spent $380 on a remote camera boom and it paid for itself in one week

Got tired of leaning over the damn edge to watch the drag arm on deep cuts. Picked up a cheap wireless camera setup on a telescoping pole, mounted it to the gantry. First week I used it, spotted a worn cutter tooth I woulda missed until it snapped. That one replacement was probably $300 and a half day of downtime. Now I check the cut face every pass without leaving the cab. Anybody else running cameras on their rig or is that overkill for smaller operations?

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thomas.river•10d ago

Old coworker swore by grease spots on the hull, turns out he was on to something

Before a job in Port Arthur, a guy named Dale told me to mark soft spots on a dredge hull with a grease pencil instead of chalk. Did that and found two thin patches we'd have missed until they blew, so now I keep a grease pencil in my pocket at all times.

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the_riley•12d ago

I finally stopped doing favors for one foreman after he took credit

Last summer near Baton Rouge, a foreman I'd worked with off and on for about 5 years asked me to clear a clogged suction line on my off day. I got it done in 2 hours, then he told the site super it was his fix while I was packing up. Have you ever had a regular partner or boss claim your work as theirs, and did you call them out or just move on?

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knight.uma•12d ago

Old timer's advice about oiling buckets saved me a rebuild

Down in Houma, a retired guy watched me hammering out a cutterhead bucket and said "put 10 weight oil on the pins, not grease." I thought he was nuts, grease is grease. Swapped to oil on the next two shifts, pins stopped seizing up in the mud. Been 600 hours since and I haven't had to torch a single pin loose. Anyone else run oil on their bucket pins or is this just a Louisiana thing?

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carr.luna•12d ago

A harbor master's 3-word note changed how I run my rig

Last month in Galveston, the harbor master watched me dig a slip and left a sticky note on my cab that just said 'less curl, more drag'. I tried it on the next few cuts and my spoil piles came out way flatter, no more overworking the swing cylinders. Anyone else get a random tip from a shore guy that actually stuck?

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mason.drew•12d ago

Picked a cutterhead over a plain suction dredge for a muddy canal job, now doubting it

I had to choose between a 12-inch cutterhead and a plain suction rig for a canal cleanup near Mobile, and I went with the cutterhead, but it keeps clogging on matted roots; has anyone else swapped back to plain suction for soft material like that?

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colegarcia•13d ago

Blew a hydraulic hose today, lost a whole shift to it

Working a sand bar on the Tombigbee near Demopolis when my 1 inch return line let go around 11 am. Sprayed fluid everywhere, shut the dredge down, and spent 4 hours waiting on a replacement from Tuscaloosa. Had spare hoses on the truck but not that fitting, so I'm ordering a full set of spares tonight. Anyone else start keeping extra fittings for every size on their rig after something like this? What's your rule for what you stock?

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sanchez.ivan•17d ago

Went back to the old spot on Birch Creek, everything's different now

Three summers ago I could run that cut near the south bend with a 12-inch cutter head and never touch bottom. Last week I had to swap in an 18-incher just to keep the channel open, and the sediment's got this weird oily smell I don't remember. Anyone else seeing their regular stretches change that fast, or is it just this area?

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sanchez.ivan•17d ago

Checked out a decommissioned channel in Galveston last week, the silt buildup was wild

Went down to Galveston last week to scope out an old drainage channel that hasn't been dredged in about 4 years. The silt had piled up to almost 3 feet in the middle, and you could see where the current had carved these weird little paths around it. The city rep said they budgeted for a full pass but only got half the funding they needed, so now they're stuck picking the worst spots. That got me thinking about how we all judge when a job can wait versus when it's already past the point of no return. Do you guys use a certain depth or sediment type to justify calling in a crew early, or do you just wait until the complaints roll in? Curious if anyone else has dealt with a half-funded project like that, it felt like a lose-lose.

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wadejenkins•20d ago

River sand vs pit sand for bedding pipe, I was wrong for 6 years

Ngl, I always used pit sand because that's what my old boss used, but last week on a job in Tacoma the spec called for washed river sand and the pipe settled way easier, no voids. Has anyone else noticed a difference in compaction time or am I just lucky with that one pull?

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the_hayden•20d ago

Six months of cutting oil on the same pump, big difference in wear

Been running my hydraulic dredge pump on the Yazoo River for six months now, switched from standard gear oil to a synthetic blend after a buddy at the Baton Rouge shop suggested it. I pulled the impeller last week for inspection and the wear rings barely had any scoring, normally I'd see a rebuild by now. The viscosity held up way better in the summer heat, so I'm sticking with it for the next season. Anyone else run synthetics on older pumps, or does it mess with seal tolerances?

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kai_ramirez38•20d ago

Blew a swing valve seal on the Meramec job last Tuesday

We were pushing a 12 inch cutterhead through that clay layer and the seal just gave, shot hydraulic oil everywhere. I had to shut down mid-shift and rig a bypass with a spare hose, took 4 hours. Anyone else carry spare seals for the older swing valves or do you just wait for the rebuild kit?

2 comments

sanchez.julia•21d ago

Hydraulic vs cable controls for a 7 month old dredge, which way do you lean?

I've been running the same 12 inch rig near Baton Rouge and my cable setup keeps binding in the mud. I'm thinking about switching to hydraulic, but that's a $3,800 retrofit on top of downtime. Anyone here made that swap and found the extra feel worth the cost, or should I just stick with what I know? What's your call?

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fionat55•21d ago

A month of routine checks on the Mississippi finally showed some progress

I run cutterhead ops near Baton Rouge and for weeks the same stretch kept silting back in at about 2 feet deep. Switched my swing speed from 3.2 to 2.8 rpm and added a second pass on the upstream side. After 4 weeks that same spot is holding at 4.5 feet plus and we cleared a 60 foot channel today. Has anyone else seen that big a jump just from slowing the swing down?

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zarag17•24d ago

The old transducer finally gave out, switched to side scan and I'm sold

My old single beam transducer died mid-job last Tuesday on the Kaskaskia River. I was about 40 feet from a sandbar I thought I knew like the back of my hand, and the bottom just disappeared from the screen. Took me 20 minutes of poking around blind to realize the unit was toast. I had a side scan unit sitting in my truck that I borrowed from a buddy, never used it because I figured it was just extra clutter. After hooking it up and running one pass, I saw the whole riverbed laid out like a map, even spotted a submerged log I would've hit for sure. Honestly, the old method worked fine for years, but now I get why the younger guys rave about side scan. Has anyone else made the switch and found it messes with how you read the bottom, or is it just me?

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anthony_jackson31•24d ago

Shift linkage cable stretch on a 36-inch cutterhead, blew my mind

Was reading the service manual for a 2008 Ellicott and it said those cables can stretch almost 2 inches over 4,000 hours, I always figured they just snapped or wore out. Started measuring mine after every shift with a caliper and sure enough, it was already off by half an inch... has anyone else actually tracked this or am I overthinking it?

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taylor_wells•25d ago

Compared two hydraulic fluids side by side for 3 months, the cheap stuff won me over

Ran my clamshell dredge on the generic brand hydraulic oil for a full quarter in Tampa Bay, then switched back to the name brand. Oil temps ran 4 degrees cooler with the cheap one and the pump sounded smoother, no idea why. Anyone else seen a budget fluid outperform the premium option on older rigs?

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fionanguyen•27d ago

Just found a better way to handle silt curtains on a weir job in Baton Rouge

Was working a high-flow canal near the Mississippi last month and the current kept shredding my standard setup. Ended up doubling the anchor weights and using a heavier grommet chain and it held through a full tide cycle. Anybody else deal with silt curtains ripping in strong currents?

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kimr91•29d ago

The old charts vs digital screens trade-off I never saw coming

I remember when we'd spread out paper charts across the wheelhouse and plot every pass by hand on the Mississippi River back in '08, now I just tap a screen and the GPS does all the heavy lifting. Does anyone else feel like the younger guys miss out on understanding the river bottom by relying on the computer too much?

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caseywalker•1mo ago

Pro tip: I used to think bigger was always better for dredge pumps

Last month I was running a 10 inch pump on a narrow channel near Baton Rouge and kept tearing up the banks. An old timer named Dave told me to swap down to a 6 inch and run slower RPMs. Night and day difference, I finished the job in half the time and didn't damage the shoreline. Has anyone else found that downsizing works better in tight spots?

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the_laura•1mo ago

Stuck on a sandbar for 3 hours because I skipped the depth finder check

Ran my dredge into a hidden sandbar last Tuesday over near the Yazoo River cutoff. Thought I knew that stretch like the back of my hand but the bottom had shifted after the last rain. Took me and my deckhand almost 3 hours to winch her off and get the intake cleared out. Should have checked the depth finder before we started but I got lazy. Any of you guys ever get caught out by a change in the bottom you didn't expect?

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vera_green69•1mo ago

Rented a brand new dredge for a job in Savannah last month... went right back to my old one halfway through

Was working a channel on the Savannah River and figured the rental would be faster with all the digital controls and GPS mapping. Three hours in and I was already missing my older machine. The new one had too many sensors that kept shutting things down for no reason. My old 2004 model just digs steady and never complains. Has anyone else found that newer equipment isn't always better for production work?

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rivera.hannah•1mo ago

Hot take: The new dredge site near Port Arthur doesn't need that fancy cutterhead upgrade

I spent last Tuesday out at the Port Arthur site watching them set up a brand new $50,000 cutterhead system on the dredge. Everyone in the crew was excited about it, but I just don't see the big deal. The old setup handled the sandy silt just fine for the last 4 years, and we haven't hit a single hard spot that would need that extra torque. Am I wrong for thinking this is just overkill for the kind of material we deal with around here?

3 comments