First pipe out of manhole structure laying storm pipe

[Garrett McKinney]

What are your steps of installing storm pipe out once the structure is set? We start out by pulling a string line from center of structure(draw mark on top of structure where center is) to next grade stake, paint on ground the line, setup David white behind existing structure with plum bob centered on string line and align to next stake, place pipe laser centered in structure with plum bob on stringline, use brick to adjust pipe to invert grade in structure, center pipe in structure with laser beam and set laser target, adjust bell of pipe(uphill side) to center with laser target, check with david white, haunch first pipe, grade for next pipe, set and home pipe, adjust bell to target, haunch pipe, and repeat, adjust target left to right for first couple sticks to make sure to be in line. Just curious if other people do steps differently and what works best for you. Any tips would be much appreciated!

 

[James Sorochan]

Sounds like you got it covered to me.If you can build the manhole to grade before you proceed digging one can stand on top and eye ball looking at centre line stakes and centre of pipe bell. Double check your laser is set to right grade. If your using a rotating laser make sure its orientated right so you don't lay your pipe downhill instead of uphill. The lay of the land can be deceiving and you don't always catch it until you take a shot with the level witch might be several hundred feet to the next structure or manhole. It sucks digging pipe back up and relaying it. Been there.

 

[Jimothy]

We do it by eye for alignment, grade based on plans and checked via rotating laser. 5 guys is ideal but we usually only get about 2-3. Always have a level on hand because laser can lie but the bubble can’t . I wouldn’t do it any other way unless it is like 3 million dollar job.

 

[cuttin edge]

One of these , or one of these

, or for just a small job one of these

, then one of these

. I used to see some of the older guys use one of these with these taped on one end for grade

. Don't forget these , and one of these and one of these

 

[cuttin edge]

, and this

, and this , and this and for Fridays this

 

[cuttin edge]

Almost forgot my favorite, Just a toss up what I love more concrete dust or asphalt, one of these

especially first thing in the morning

 

[cuttin edge]

One of these View attachment 280716, or one of these

, or for just a small job one of these

, then one of these

. I used to see some of the older guys use one of these View attachment 280717 with these taped on one end for grade

. Don't forget these View attachment 280718, and one of these View attachment 280719 and one of these

It always shocks me how expensive the first 4 items on the list can be. 3 of them anyway.

 

[02SILVER]

Do you have a structure clamp to mount your david white on?

 

[skyking1]

I also drop a plumb bob from one of the offset stakes if I have any along the way.

 

[Garrett McKinney]

Do you have a structure clamp to mount your david white on?

I just use a laser tripod and pull string from next stake past the manhole im starting at so its easier to get to.