c/dredge-operators

Spent 3 hours digging out a clogged suction line before realizing the problem was the other way

Had a job on the Mississippi last month where our dredge kept losing prime and we figured a intake screen was plugged. After tearing down half the system and even pulling a diver, turns out a 6-inch clamshell valve was stuck partially open 50 feet back toward the discharge side. Anyone else ever chase ghosts like that only to find the issue was somewhere stupid simple?

Stop running your dredge pump dry for even 5 seconds to clear a clog

I watched a guy on the barge next to mine burn out his pump seal last Tuesday because he thought 'just a quick dry run' would save time, and it cost him $800 in parts and a full day of downtime - has anyone else seen this habit wreck equipment on your crew?

Debate: Are smaller cutterheads worth the extra fuel cost or not?

I ran a 12-inch cutterhead on a job in Mobile Bay last week and burned through 80 gallons more diesel than I normally do with my 10-inch head. The material came up finer and the pump ran smoother, but that fuel bill hurt. Three years ago I swore by the smaller head for everything, but now I'm not so sure. The bigger head gets more volume but leaves bigger chunks that clog the pipe. What do you guys think, is the extra fuel worth cleaner production or do you stick with the brute force approach?

Found a trick to stop my cutterhead from clogging in heavy clay

I've been running a dredge on the Mississippi for about 12 years now. Last summer we hit a patch of that sticky blue clay near Baton Rouge that would gum up the cutterhead every 20 minutes. I tried slowing down the swing speed and it helped a little but not enough. Then an old timer told me to run a water jet at the cutterhead intake at 80 psi while we worked. I rigged up a 2 inch hose from our discharge pump and it cut the clogging down to maybe once every 3 hours. Has anyone else messed with water injection on their cutterhead for tough material?

Tried switching to a 4-inch suction line for better flow, nearly wrecked my cutterhead

I swapped to a 4-inch suction on my Ellicott 370 last month thinking it would speed up my dig in that sandy clay near the Mississippi. Instead, it kept clogging every 20 minutes and I lost half a day clearing blockages. Lesson learned: bigger isn't always better when your pump can't keep the velocity up. Anyone else get burned by oversizing their pipe?

Spent $800 on a hydraulic jet pump upgrade and it either saved my season or threw money away

I kept getting clogged on fine gravel with my old suction setup, so I dropped $800 on a new hydraulic jet pump from Keene last month. First two weeks I was pulling up material twice as fast, but then I hit a patch of clay and the thing lost all its prime, costing me a whole day of digging. Has anyone else had mixed results after sinking cash into these high-end pumps, or did I just get unlucky with the conditions?

Picked a used 8-inch dredge over a new 6-inch last spring and it paid off fast

I was torn between a brand new 6-inch Keene and a beat up 8-inch model from the 90s for $4,000 less. Went with the bigger one after I saw the condition of the pump and hull. Has anyone else taken a chance on older gear and had it work out better than expected?

Warning: I ran my cutterhead too slow for 8 years

Took a consultant looking at my wear patterns to realize I was chewing up screens way faster than normal. Has anyone else had a pro point out something obvious you missed for years?

Impeller blew apart on me mid-dredge this morning

Was running a job on the Mississippi near Baton Rouge around 6am when the whole rig started shaking bad. Shut it down quick and pulled the pump apart right there on the deck. Found the impeller had cracked clean through on three of the vanes, must have been a hairline from last week's gravel hit. Cost me about 8 hours of downtime waiting for the shop to bring out a replacement. Anyone else had a sudden impeller failure like that or was I just asking for it by running too hard?

Two years of running a 8-inch cutterhead and the sandbar difference is wild

Worked a stretch of the Mississippi near Baton Rouge since 2022, same spot every spring. First year we were pulling 4 feet of silt buildup near the levee. Now after consistent passes that area runs 12 feet deep. Wondering if anyone else has seen that kind of change from just regular maintenance dredging or if we got lucky with current shifts.

Mentioned river flow data to a hydrologist last week and got schooled

I was complaining about how much silt we were pulling up on the Mississippi and he asked if I'd checked the 30-day average discharge. Turns out I was running way too deep for those conditions. Has anyone else had a hydrologist or engineer call out something in your daily ops that completely changed how you run?

That $20 harbor freight shear I swore I'd never use

Bought one of those cheap electric shears on a whim two months ago to trim some old cable jacket on a barge job and figured it'd die after one use. Thing is still going strong after cutting through 50 feet of 3/4 inch wire rope sheath. Has anyone else had one of those cheap tools actually hold up better than you expected?

Rant: Wasted $150 on a fancy flow meter that was totally wrong for the job

I needed to measure slurry flow on a small channel dredge job near Baton Rouge last month. Saw this digital flow meter online and figured it would handle everything since it had good reviews. Got it in the mail, set it up, and it kept giving me readings that were way off by like 30 percent. Turns out the thing couldn't handle the solids content at all and I had to send it back and eat the shipping and restocking fee. Has anyone else gotten burned by buying gear that just doesn't work for real muddy water?

Finally switched from manual shutdowns to a timed purge cycle on my cutterhead

For about 2 years, I'd sit there and manually throttle down my 12-inch dredge every time I finished a cut, waiting for the suction to clear before killing the engine. Took forever, and I'd always second-guess myself. Last month, I installed a simple timer relay that runs a 45-second purge cycle after I hit the kill switch. Now I just hit the button and walk away. Has anyone else made this switch, or do you still do it the old way?

Finally switched to a hydraulic dredge setup after 8 years

I used to run a cable arm dredge on the Mississippi River near Baton Rouge, and it was a constant headache with snapped cables and lost time. Last month I made the jump to a hydraulic system, and the difference in maintenance alone is huge. Has anyone else here made that switch and noticed better production numbers on their end?

Finally had the worst week of dredging in 8 years

Last Monday the cutterhead jammed up on some old steel cable buried in the silt. Took me 6 hours with a cutting torch to get it free. Then on Wednesday the hydraulic pump started whining and by Friday the whole suction line had a crack dumping slurry into the bilge. Turns out the cable was from a old dock foundation nobody mapped. Has anyone else run into random buried debris that just ruins your whole week?

Hit 500 hours on my dredge pump and it felt like a bigger deal than I expected

I finally passed 500 hours on my main dredge pump last week. I've been running this 6-inch Ellicott for about two years now on a gravel pit job outside of Portland. When I first started I thought I'd swap out the wear parts around 400 hours, but everything still looks pretty good inside. The impeller has some pitting but nothing major, and the liner is holding up better than I figured. It just made me realize how much I've learned about reading the material and adjusting the head pressure to not beat up the equipment. I guess the 500 hour mark felt like proof that I'm not just guessing anymore. Has anyone else hit a run time that made them stop and think about how far they've come in the trade?

Noticed a huge difference after switching to a 10-inch cutterhead on my dredge pump

Ran a 12-inch for years on the Mississippi near Baton Rouge. Swapped to a 10-inch last month because we hit a lot of clay and rocks. The before was constant clogging and slow digging. After the switch, we went from 3 hours of clearing blockages per shift to maybe 20 minutes. Anyone else seen a big change from downsizing cutterhead size on tougher material?

Serious question, has anyone here pumped through a sandbar that kept shifting?

I was working a job near Mobile Bay last month and we had this sandbar that kept moving every time we stopped for the night. Over three weeks, the spot we cleared would be back to 8 feet deep by morning. Did you just have to run the dredge nonstop, or is there a way to anchor the material elsewhere?

Debating a bad week at the Port of Oakland last spring

Had a week in April where the slurry pump kept clogging on every other pass through the silt build-up near berth 14. It cost us 6 hours of downtime over three days, but the night crew said the material was unusually wet so the pump was actually running cooler. What do you all do when a tough spot makes you question your equipment settings?

I finally listened to old Sal about grease buildup

Sal, the 30-year vet on the night shift, told me last spring to check my cutterhead bearings way more often than the manual says. I figured he was just being paranoid. Six months later, I had a bearing seize up on a job near the Port of Galveston and lost a whole shift. Cost me $400 in replacement parts and a lot of explaining to my boss. Anyone else have an old timer give advice that saved your butt or cost you time?

Just hit 10,000 hours on my old Ellicott series 270

I was checking the meter on my machine last week and it rolled over 10,000 hours. That's like 416 straight days of running and I've only replaced the cutterhead bearings once. What kind of hours are you guys seeing on your older rigs before major rebuilds?

Old timer in Louisiana showed me a trick with shock cord

Three years ago on a job near Baton Rouge, this guy named Cletus told me to stop fighting with heavy steel cable on my anchor lines. He showed me how to splice in a 12-inch section of shock cord to take the snap. Worked like a charm in the rough stuff. Anyone else use elastic on their rigging?

Spent $450 on a hydraulic cutter attachment and it paid for itself in one job

One Sunday morning down at the New Orleans harbor taught me patience pays off

We were dredging a tight channel near the Industrial Canal and the cutterhead snagged something solid around 6 AM. Took me and my buddy Ray almost 4 hours to clear a buried cable that wrapped around the rotor. Whole crew was cursing but we got through without tearing up the gear. Anyone else had a morning like that where a slow start saved you a bigger headache later?