Thursday, October 29, 2009

Week 19, Part 2 PREM finished and overhead views-

The final pour for the PREM building (Phosphorous REMoval) was last week and it took a few days to strip the forms off. Early this week that was wrapped up-






Late in the week I had the chance to get some elevated shots in a Genie lift-
the first is the PREM building, 24 foot walls on top of a slab, 18-20 feet of the walls sit below the original site grade. I left the trucks in the upper right corner for perspective-



This is the Treatment Building with half of it being tested for water leaks at the time of picture-



In the meantime the Wetland Discharge Area has seen step-by-step progress- this week the perforated pipe with gate valves was installed. I'll be back soon with Week 20 update!



Week 19- Part 1 Force Main and Lift Stations

Another busy week! Working on 3 structures and underground piping simultaneously!

The Effluent Force Main installation continued down Toetly Road- had to bypass some power poles with a little help from Kootenai Electric-









In Lift Station 1- the influent pump station by the Lagoons- the slab was poured and wall forming began-







On the main site at Lift Station 2- the effluent pump structure- the sump basin was poured, the slab grade backfilled and a rebar mat was constructed-






Wednesday, October 14, 2009

Week 18- Part 2- PREM walls finished and Lift Stations begun

The north half of the PREM (Phosphorous Removal) building was poured this week. The Treatment Building took nine separate pours to build, the PREM only three.

These shots represent the late stage of form-building-






Here's a look at the pour from an elevated perspective-



Here's Dennis balancing a rock on his head, how this helps our concrete pour, I do not know!-



Then the forms are stripped off-





This is the Influent Lift Station (LS-1) by the lagoons. The sump basin will be poured first even though the slab rebar is also in place-



How do you get concrete into a deep hole bottom?



And finally over at the Treatment building we've had water in one half of the tanks for a couple weeks running a leak test-



And in the right light the Highway 5 Bridge to St. Maries looks pretty good-

Tuesday, October 13, 2009

Week 18, PREM final pour, Force Main and Lift Stations

This week saw the project expand into three separate areas of work which made the inspector actually break a sweat keeping up! Well..., not really...

But this week began a very busy period which continues to the day of this post and beyond. The Force Main has been much anticipated and finally got underway this week-






Jason & Don bolt up a fitting in one of the Pressure Cleanout manholes-





We had to go under the Highway 5 bridge to St. Maries-






Third day into it we hit bad weather-



And somewhere along the way we found an unmarked culvert- the new public works director for City of Plummer, Rod Willard, got a close look just to be sure!-



Along with the Force Main, the Lift Stations (Influent and Effluent) continued to move along.

Lift Station 1 (Influent by the Lagoons) was further along and ready for slab rebar-




Lift Station 2 (Effluent, on the main site) needed more adjustments so the bedding was still being placed- (after this picture look for Part 2 which will be posted above this entry)

Tuesday, October 6, 2009

Week 17, Final wall for Treatment Building, progress in other areas.

Looking back to the work week that started on Sept. 21-

This week we saw the final concrete pour at the Treatment Building. This finished the western wall and concluded work on the single largest structure in our project. We first laid rebar for slab on July 15th, 10 weeks ago!

Here's a view of the pour from a distance, behind the PREM building-



This is the western wall the day after the pour as the forms were stripped-






In the meantime we were preparing to install the Effluent Force Main piping which runs south from the main site, under the Highway 5 bridge, under some railroad tracks and into a perforated pipe in a gravel bed. With several manholes along the way for pressure cleanouts and air release valves. Hmmm, still a bit of work to do!





With the PREM building south half being poured last week we were still stripping forms inside and out. Here's a few shots that show partial form stripping-







Meanwhile work continued on the north side of the building, encasing the rebar inside and out with concrete forms_







After 10 weeks of watching rebar go 16 and 24 feet high in two buildings here's one final shot before it's all covered up-



Also preparation continued in the Lift Stations- shooting elevations for final grade and getting drain rock and bedding in place, and that's all for this update!