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PROJECT #2 Installing new 4'wide deep sewer line extention

Est.Cost: 2.9 mil.

ETA: 45 days

Length: 1.9 miles

Contractor: KCC company

Jackson County hired out K.C.C. company to install a new deep sewer line

extention from their existing sewer line on the north end of 43rd street to

 accommodatethe new housing developments under construction about 2 miles south.

 The first thing K.C.C. did was come out and mark on the asphalt the path of

 the new pipeline so that other utilitycompanies could come out and mark

 any other underground utilities (pictured above)in thepath of the new

pipeline, such as gas lines, electrical , and telephones wires.

A few weeks later concrete barriers were brought in and blocked off the far

right lane and shoulder to enclose what was to soon become the excavation

path for the new sewer line.

The next day a John Deere 200C LC and an AKERMAN EC200 equipped with a

 hammer were delivered to be used for removing the asphalt so that

 excavation could soon begin.

The EC200 broke the asphalt while the 200C LC followed close behind

 loadingthe pieces into trucks. From start to finish the crew removed

 all the asphaltin the sewers path in only 3 days.

After all the asphalt was cleared away and the two excavators hauled

 away the big boy the CX800 was delivered to begin excavation.

K.C.C. chose this particular excavator from their fleet because of the

 ranging depths of the pipeline and the hard rocky soil being dug out.

The line trench was excavated from 12' deep to 15' deep (due to the road

 sloping up). The dirt dug from the trench was piled up on the right road

 shoulder and dirt slope to allow for easy backfilling later. Because of the

 soils hardness trench boxes weren't necessary for lining the trench which

 saved valuable time and money.

On the north end where the road curves and the pipeline extention begins

K.C.C. set up a base ground for their materials and equipment, heres

a pic of Bob the foreman for this project busy talking on his cell

phone trying to get the citys inspector out for approvals.

The new pipe, 4' wide concrete pipe with steel ends and painted blue, was

delivered on the fifth day of excavation.

A CATERPILLAR 375 excavator was brought in and used to lower the new

 pipe sections into place one by one. Here you can see why it was the

 perfect excavator, itcrawls right over the top of the pile of dirt and

 its incrediably long boom allows it to reach all the way into the ditch

 even being high up on the dirt pile.

Here's another good shot to show the 375's long reach as it puts that

 pipe segment tightly into place.

Since these concrete pipes were lined with a steel strip on the end the

pieces had to be welded together for maximum strength. You can see where

the welders welding just how tight the segments fit togther once attached.

Twenty days into the project now K.C.C. brought in one of their CAT 980G

loaders to begin the backfill process.

Crushed rock was delivered thanks to MOORE'S TRUCKING that due to city

code must line at least 1' of backfill directly above the pipline. (A

total of 26 truck loads of crushed rock were trucked in for the entire

 pipes length)

The 980G follows behind the welder and drops into the trench the

necessary amount of crushed rock needed for backfill. Heres a good

view of the different stages in the project you can see the CX800

in the background still digging the trench then the 375 up on top

of the dirt pile followed by the welder below and then the 980G here

dumping the crushed rock covering up the pipeline.

Once the 980G began backfilling a compaction wheel attachment was brought

in for the 375 to use in compacting the crushed rock and backfill as the

 980G dumps it into the trench.

This proved to be a good efficient use for the 375 since time had

 to be killed between the trenching and laying of pipe, this saved K.C.C.

money in not needing to bring in another excavator for the task.

After all the necessary crushed rock was placed and compacted then the

980G pushed the dug up dirt back into the trench filling it, followed

 by the 375 compacting this middle layer and then the remaining dug up

 dirt was pushed in from the pile and a HAMM 3414 compactor was used for

 a final compaction to insure maximum denstity to elliminate the chance

 of further soil settlement which would cause road sinkage and damage

 in the future.

Once the final segments of sewer pipe were layed and welded and then backfilled

the big heavy equipment had finished there job and were hauled off.

Coming to the end  asphalt was poured and  K.C.C. used their HAMM 3414

 smooth drum roller for a base heavy compaction.

Finally the new asphalt was smoothed and compacted with the CAT vibrating

 roller making the road once again ready for traffic making it seem like

 there wasn't even a huge trench there only days earlier.

The last step after all the new asphalt was put in was to install

a layer of concrete around the manholes that lined the new sewer line

every 700 feet or so. After the concrete dried and the manhole covers

were placed the concrete barriers were removed making the job done in

41 days, 4 days before projected!

Day 45 K.C.C. loaded up the last of their things, along with the nice

 bonus check they recieved from the city for finishing the project

 earlier than said, and headed back to the yard to see whats in store

for them next...





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