When replacing underground pipes near utility lines, workers must install steel plates and trench boxes to protect gas and water lines, carefully excavate within safe distances (typically 2 feet) from pipes, and use flowable fill (CLSM) to backfill trenches while maintaining traffic control barriers and proper drainage systems.
Deep Dive
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Deep Dive
THIS IS A REAL DRAIN.......Added:
Here's our disaster.
All right, let's try this again. Camera doesn't like to be frozen. It's only 20Β° or something. So, here's our disaster.
Hopefully we got some new steel plates coming.
We'll get them installed so we can get this box out of here. There's our gas line. That yellow down there.
But yeah, we got to get steel plates put in right here and on the other side and over here.
and then we can dig down and find our pipe that runs north south the 8 in that we've got to replace.
But it's still down there a bit. So anyway, we're going to fly our uh 12T by 6 ft steel plates in down the sides of our trench box. Then we can pull that trench box out.
So, this should be a little entertaining.
This delivery truck decided to back in thinking he'd just offload them where where we would need them.
But he didn't want to unload with his crane. So we had to pull him off the road so we could unload him with the loader.
We good on the the water line.
>> So here I'm trying to thread this steel plate between a gas man and a water man.
I actually only have about 6 or eight inches on either side of the plate to thread this in. So once I set it in and set it down, I've got to keep it from tilting one way or the other.
>> Here, step back a little. My my clevis might pop a little.
Has that box shifted? Is it pushing against the gas line? I think I felt it shift.
>> Okay, let's uh let's unhook me off this.
We'll get the other one in here.
I know here in my way.
See that high rising like a promise in the cloud future engines in the quiet of my day.
In the grass field in a tailgate line, they'll never know my name, but they'll be riding in my dirt.
Ste coming down from this busted up this tang building out here with dirt in my I think the box just moved, didn't it?
Okay. Uh, unhook me. That should stand there. And I'm going to pull this box.
Oh, no. No, no.
It was at that moment that I realized I didn't push that steel plate in the ground enough and it started tilting toward that gas mane.
And a 1-in steel plate would act a lot like a knife through a 6-in gas line.
Come around on Well, how am I Okay. How close am I to it?
Okay. What I'm hoping is I can keep my teeth on it and I can push down with something else.
Am I pushing on it? Oh, yeah. There it goes.
How close are we over there?
You got a gap.
Okay, I'm going to push this down a little more.
Watch the box so it doesn't Oh, I I'm more worried about those plates tipping in cuz they're narrow. They'll cut right through that box. Yeah, it's touching the gas, but it's it's wide enough.
Let me push down on the other side. Go around and watch it.
So, now that we got those steel plates in there, we're going to secure them back.
Gonna use these chains to hold them to a trench box.
Get them so they just don't tilt in. That way I can Yeah. get that stupid trench box out of the way without damaging something.
If you notice on that trench box is our four-way harness. I couldn't lift that box with that harness because it would then tilt the box into the gas line. So, I had to remove it with some Ben engineering.
So, now we can work these steel plates down in anchor them deeper below us so they're nice and safe and won't tilt in.
We'll do a little more digging and then we'll get them chained back up to to the trench boxes to hold them back just as a extra precaution.
Heat.
So now we can start digging around that 8 in pipe.
If you look down in here, he's it's basically in the center where he's standing.
Got a little bit of groundwater stuff happening.
Hey, hey, hey.
Hey, hey, hey.
So, after Campa finished digging around that pipe, we take a few measurements and figure out how to get the next trench box in.
So, we're hooking up to that box. We're going to set it on the south side of the gas line. So, we basically got steel plates in this closer half of the trench and then the trench box is in that back half closest to the track hoe.
And we're able to start digging inside that other trench box and pushing it down and getting it situated.
Hey, hey, hey.
So, here we get the bucket turned around and set down in here so we can clean out from underneath that 24 in that I'm standing on. See, it just keeps sloughing in on the back side.
Here we get the chain holding the steel plate back.
So, what I want to do is kind of dig evenly on both sides of this down within a foot or two of the pipe he's standing on.
And as I dig it down, I'll push this box down, fill in on the outside, try and make it so that it's safer. Um, just the that valve, we cannot bump it.
Like I can bump the box, the valve box, but down within 2 ft of the the pipe, I I'm not going to get anywhere close to that. You'll have to dig around that.
And then out here, I really don't want to bump any of that pipe because it could cause something else to pop. So, um, if you want to go down the ladder and watch and make sure this box doesn't drift toward that gas line, um, maybe dig out over there between the gas and this box so that we can see exactly how close we are. We don't have that dirt in the middle.
Okay, I'll I'll reach in once you're down there and can help guide me. I'll reach in on this side first and we'll start taking a little bit Heat.
Heat.
Well, good morning Here we are back doing all our final preparations for tomorrow's big shutdown.
So, we got our plywood in over here just keep the big chunks from tumbling in on anybody.
Cam's down there digging underneath the 24 in. Got our pumps in.
to set our generator plant right there. Our light plant, I guess.
But we got to fix this four-way. We got a couple of latches.
They're bad. There's one right there.
Got to replace that cuz it doesn't hold correctly.
There's one other in here that broke.
So, we're going to do that right now and then we can lift the light plant off with with the new newly repaired um four-way.
So, yeah, that's the deal today. Then we got to most likely go pick up our pipe that goes in. It's a piece of steel pipe that they're custom fabricating some stuff on the end of.
So yeah, anyway, enjoy.
Hey, hey, hey.
Heat. Hey, Heat.
Heat. Heat.
Okay, I'll just spin it around. Keep me on the other side.
So, here we got to make some sandbags.
We need a few bags to support the new pipe we'll be putting in.
So, we just found some good grally material, >> bagged it up, and >> we'll set our pipe on that to hold our grade lines in the gravel.
Field road about to turn to battle on dirt. I got dirt in my veins. Steel in my callous hands.
Carving out a dream from this busted up farm land.
Every cut I make, every load this old blade takes. I ain't just moving ground.
I'm building up life out here with dirt in my veins.
Track map on the back of a feed.
>> That looks good to me.
>> Once we once we drain the pipe, >> we get those bolts all taken loose and jerk that thing out. Then we'll we'll have to dig another probably a foot or so, but we'll have some water to deal with and dig a sump hole back here and just pump from back here.
We'll only need to dig a trench, you know, 2 or 3 ft wide in the middle for the pipe.
I may swing that up and out.
And uh then we'll just drag those blankets back up in there. This time we may need to get one more to do around the backside of that.
I'm not too worried about it, but it'd be really ugly if something froze.
Future engines in the quiet of my day.
When the grand stands in the tailgate lane, they'll never know my name, but they'll be riding in my veins. I got dirt in my veins in myst.
>> Well, good morning.
Here we are again. This is the big day.
We're going to get these blankets pulled out, get the new pipe foot in here. They got to weld it all up onto that 24 in.
And uh yeah, tomorrow we should be able to flow fill and and contain that well from outside of this box. That way we'll fill it with flow fill so that we can get the road somewhat more open at least uh until we get warmer temperatures so we can do a little paving here. We take the easy way out and uh fly the concrete blankets out. They uh like to soak up water, so it's good to lift them out with something.
Heat.
Heat.
So here Dylan was cutting the pipe. Um, and as he began cutting it, we started getting water, which we expected that.
This is a drain. So, we were draining 5 to 800 ft of 24 in pipe. So, it took a little while. If I recall correctly, it was, you know, 2 3 hours. You can see if you watch this time lapse, the water will rise and lower.
where we were able to control the water flow with uh with a valve that was existing there. So, we just crack it open a little more, close it down to so we didn't overwhelm our pumps.
So, Dylan got the pipe fully cut. Uh here we're hooked on and lifting the riser piece out.
It had a big concrete thrust block on it, so it We can shake it around a little bit to get it up and out.
Nothing too serious.
Heat. Heat.
Heat.
Heat.
pull it out of there.
>> So, here we take a few cleanup scoops out of the bottom.
>> And man, that bucket barely fits down in there. You curl it up too much and you're going to hit the gas line. Curl it up not enough and the knuckle on the back of the bucket's going to hit the water mane that's against the far back wall.
So, we're taking it nice and slow.
This This is critical stuff here. We We've got everything basically dug out, ready to put the new stuff back in. We screw something up now, we'd really be in a world of hurt.
>> The day we pack right now and rocks we got to grind. I got dirt in my veins. Steel in my callous hands.
Carving out a dream from this busted up farm land.
Every cut I make, every load this old blade takes. I ain't just moving ground.
I'm building up a life out here with dirt in my veins.
Here the fueler comes by and we top up the fuel, give her some grease, make sure she stays good for a long time.
It's quite an investment in equipment, so we got to take good care of it.
Miss in the cl future engines in the quiet of my day.
When the grand stands fill in the tailgate lane look like it's right Here we're working with peaches to get the alignment of it right. You kind of just got to make it eyeball perfect in this scenario.
>> Right here with dirt in my veins.
So, here's the big moment. We're picking the new pipe off the trailer. It's all prepped. We wrap the valves up. They're all bolted together nice and tight.
Using this uh tag line to twist it down so it'll fit in the box. It's too long for our box. So, we got to tweak it a little, get it creative to get it down in there. So, yeah.
And then, like I said earlier, we're setting it on some sandbags to just hold it at the grade we want.
Heat. Heat.
Heat.
Heat.
Heat. Heat.
Good morning. Here we are. It's uh Wednesday morning. We're just uh just about to finish things up today. They're pinching putting the diaper on the pipe so they can finish grouting.
They couldn't get their grout to fully stick to it last night. So, uh once they get that on, then we're going to hang our steel plate um over here to be our bulkhead. Then we got flow fill coming to fill this entire hole.
And then hopefully we'll be moving all this traffic the hard traffic control stuff, leaving the barrels out here for another day to let this flowable fill set up over this hole. We actually got 2 and 1/2 ft of asphalt removed in the lane, but you should be able to just drive on that.
So yeah, anyway, we'll show you a little more here in a bit. Is >> this a valve valve?
>> Yeah, that's just a gate valve. The the next one's the plug valve.
>> Yeah, just valve.
>> So, here they're just getting their GPS shots on these.
So, they got the locations of them for next time.
Also, they they took some shots on this pipe and whatnot. So, they've got all that.
Yeah.
So, here we've got our steel plate in to use as a bulkhead to keep all the flowable fill out. So, that'll just be welded on temporary so that we can cut it easy when we go to pull it apart later.
But that'll keep the flow fill out in the paved road and keep it out of this box closest to us where we've still got to do some work.
So here we're filling up a few more sandbags. If you look down in the bottom of that trench box, you can see the white sandbags in there. We've got a the plate wasn't quite tall enough to seal up the bottom. So, we had to few throw a few bags in there to uh make it so the flow fill doesn't ooze into where we don't want it.
So, here we get to sand the pipe that's inside the box, make it permanent.
We'll put a couple of feet of sand in there just to hold everything in place and help back up those sandbags so they don't pop through with the weight of the flowable fill on the other side.
Heat. Heat.
Heat. Heat.
Heat.
Heat.
Heat up here.
Heat. Heat.
So here we have to put some flowable fill in the wheelbarrow there so the concrete tester can test it. See how much air is entrained in the mixture and see what the slump is or how wet basically the mixture is. Once they give us the green light on on that then we can start pouring again.
You want a 4x4 underneath them?
Okay, I want you to watch this edge where the gas line is. Don't let me get any closer this way.
Hey, Tighten my clevis.
Okay, now it should kind of try and hang vertical. So, I'm going to have to come this way a little.
I don't want to hit that water line either.
Heat.
Freedom.
Done it.
That right there is fine.
Heat. Heat.
Heat up here.
Heat. Heat.
Here we get all the yellow water barrier drained out. You can see all that water flowing in front of the loader. We pulled the caps out of the water barrier.
Can't move them very easy when they're full of water. So, we got them drained and then we'll be moving the concrete K rail barriers here in a minute.
Heat. Heat.
Heat. Heat.
Heat. Heat.
Heat.
Heat.
You like it?
transport just got here to haul away our excavator.
He's just getting ready to back in here.
So here we got to get the track hoe all cleaned up. Trouble is I got to track through that sand pile and that stuff gets kind of all over everything. So takes a few minutes to get our little ramp built. So we're ready to jump on the trailer. And then now we get all the sand out of the tracks by spinning them, shoveling them out.
Then transport is good to load. He's he's getting used to jumping that beast up on the trailer from the side. We've been doing it quite a bit lately.
>> We returned you now to your regularly scheduled program.
Here we uh dig out behind the K rail. When we set that concrete K rail down, it sques some of the flow fill into the gutter.
We just have to kind of recreate a gutter with a flow line between that K rail and where the existing gutter should be. We're going to have a few storms and so we need a little place for the drainage to scoot through there. If we leave it high, it'll push water out into the the roadway and cause an ice problem that, you know, could cause an accident. So, here we get all the stuff strapped on the trailer, all the supplies we got to haul out. Water truck, he's here and uh filling up the water barrier again on both ends of that concrete K route.
because we're leaving that barrier there because we have that existing trench box in the hole. Um, we have to refill the water barrier. Those act as a crash cushion if somebody is to hit them. They slow slow people down.
Uh, not as fast as hitting a concrete barrier. It's meant to kind of cushion.
All right, here's the end of the project here. Got all the junk loaded on the trailer.
Got our water barrier and K rail up.
Hopefully a a bicyclist doesn't come up this bike lane and decide to try and drive through our flow pill. We got some caution tape around it, so hopefully that keeps them out. That'll be a little ugly. So, we got uh our flow fill trimmed up. Got a nice little ditch behind the gutter or behind the K rail, our valves down in the hole. Got to come up late tomorrow and hook a blowoff on so we can blow a bit of water through.
But yeah, this project is done for the time being. So, we got to come back and install a riser pipe and a a box so the water can discharge down into the storm drains, but that'll happen in a couple of months. They were trying to utilize a a waterline shutdown that was already scheduled.
So, we jumped in, took care of this while they were doing other work.
Basically, we were multitasking.
So anyway, just remember it's good clean dirt.
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