Loads of Civil Work This Week

Initial work on the basket wall

Civil work this week involved excavating a slope for a 20 foot high gabion-style basket wall. This area will eventually feature a retaining wall for the upper site where the parking lot will be located and the lower area for the recently relocated Duhart’s Creek.

Front side of building & Parking Lot civil work

Landmarks nearing completion this week include the parking lot sub-grade and the block work on the front of the building.

Completed cut slope

On the southwest area of the site, overburden trash is almost completely gone. Nearby, a large cut slope has been seeded and mulched so that landscape efforts can get a head-start.

Grading work in mid-process

Grading work for an area on the site that will be a mitigated wetlands area began on a soil nail wall that eventually will extend vertically down over 20 feet.

Electrical crews installing conduit runs

In addition to the civil work this week, the electrical crews began installation of the conduit runs for the power feeds for the building. These runs will feature over 2,000 linear feet of conduit runs around the building site after completion.

Site & Building Progress Continues

 

View of Duhart Creek as Erosion Control Work Is Performed

Repair work performed on access road due to heavy rains

Overview of site with arch feature shown

There is an inspection done weekly onsite for erosion control. Due to the heavy rain events we had there were a lot of the erosion control devices that needed to be replaced, repaired, or improved upon.  Thanks to the rainout days and 2 ½” of rain, this was the focus of our site work last week.

To date, we have undercut over 15,000 cubic yards of wetlands, hauled over 60,000 cubic yards of overfill and trash, laid 340 linear feet triple run of 72” corrugated metal pipe, installed over 2,000 linear feet of 60” underground detention system pipe and installed the twin arch spans measuring 75’ long by 49’ wide by 17’ high.

 

Foundation finished & Walls Started

Progression of work on the southern wall

During the last few weeks, we’ve seen the building work begin as the site work was winding down.  The foundation is poured and the forms for the walls started on the southern wall. Brick work was began as the wall concrete pours were completed

 

Northern Wall Shown Here

Unloading of the Roof Steel Started

Our crews began to unload the first loads of steel for the roof.

Other necessary structures for the roof steel will be started soon and topping out should be completed as well.

 

Scaffolding and bricks for the mason work for one of the walls

Scaffolding for the Loading Dock Area Walls

Sample of the Bricks used in the Walls

Masonry work was started throughout the building as the walls were finished out.

 

Foundation for wall before concrete pour

Steel Installed for the Retaining Wall

Concrete Pour Retaining Walls

Concrete pours are still a vital part of Gastonia. The retaining wall in the loading dock area was poured last week.  Subgrade work has started after the forms were stripped. The driveline concrete will be poured at the site by our crews soon. Progress continues with the walls up and the roof steel delivered.

 

 

Footing Crews Laying Foundations…vertical construction starts soon.

This week our footing crews started the foundations for the vertical construction once the pad was completed and accepted.

Our civil work continue to progress in and around the weather cycles. While our foundation crews poured out the east footing early this week for the bridge, the remainder of the crew was finishing up H-piles on the center footing. Our plans are to pour the center footing the first of the week. The arch structure is scheduled for delivery next week with erection to follow.

The concrete crews also poured the headwall for the outlet end of the triple 72” pipes.

The Building Pad Turns Over & Pile Driving Begins

With the turnover of the building pad this week, our crews have narrowed down the requirements for turn-over. Stone access road was installed around the building pad and in staging area. Our building superintendent is now on the job to start vertical construction.

We have now shifted the focus from the pad completion to the remainder of the site. Sixteen trucks cycled at a rate of 1.5 rounds an hour as we concentrate efforts to removing about 30,000 CY of overburden that overlays the fill needed to complete the balance of the grading operation.

Our work continues on the spine road through the site and this week we started driving steel H piles and as soon as they are complete we will form and pour reinforced concrete caps to support the double arch culvert bridge crossing Duharts Creek.

Taking Advantage of Sunny Days

The New Year brought more un-needed weather to the site.  The week started off with wet conditions.   Taking advantage of sunny day windows the crews are using blending and dying techniques to keep the schedule moving forward.

Durharts Creek bypass was put into place to allow for the bridge foundation crews and pipe crews to work without water running through their work areas.  The creek bypass will stay in place until the arch span bridge is erected.

Storm crew finished out the triple run of 72” pipe. Headwalls will be poured next week.  The bridge foundation crew is hoping to have all the sheet pile piles in by the beginning of next week and start driving “H” piles  that the foots will set on.

The waterline crews have started on the loop feed around the building that will provide both domestic and fire line.

Overburden removal and revealing good fill material underneath is still a huge factor in progress. Crews have hauled nearly 40,000cy offsite at this point.   The site contractor has been running to operations  to remove as much overburden as possible at the same time excavating good fill material to bring the pad and parking lot up to grade.

Fill Operations Continue

We were impacted somewhat by the weather events last week but overall had a decent week.  Our fill operation for the pad continued in coordination with overburden removal, which revealed additional good fill material.

The bulk amount of the fill needed for the building pad should be in place mid next week and we will then continue to the parking fields.

We also finished all the 60” CMP portion of the underground detention system. The filtration system is in fabrication and will be on site in January.

The double steel arch bridge, a part of the future Gaston Mall Drive, started this week with the mobilization of the foundation crew.  We have started driving sheet piles around the footing locations of the bridge before the “H” pile installation which will support the concrete footings of the bridge.

Weather Slows Progress

The weather did not help the progress of the project any this week due to rainfall totals of almost three inches. The site contractor spent most of the week working on erosion control.

Site View of Erosion Control Maintenance

They were able to get things going later in the week continuing with the triple 72” CMP and the overburden removal.

Triple 72" CMP heads toward stream intersection

Stockpiling Under Cut for Backfill

Undercut Stock Pile Being Loaded Out

Saturday’s work schedule was cut short due to sleet and rain.

Work Continues For Gastonia

The site grading contractor has been taking advantage of the great weather in late October to get a jump on the undercut for the future building pad. Multiple layers of grid and stone are being used to insure a stable building foundation.

Granular Material and Fabric Covering

Through the month of October, the site contractor has progressed with the installation of the triple 72”CMP (Corrugated Metal Pipe). This is being installed to relocate an existing storm stream under the future parking lot area.

Forming of 72" Pipe Collar

The relocation of the existing outfall sewer was a 24/7 operation after finding the condition of the existing VCP pipe. Crews worked round the clock for 7 days to install, test and cut over more than 1200lf of new 18” sewer line.

Sewer Crew Setting Up For Relocation Process

Night Work for Sewer Relocation

The site contractor was able to get the transition collar from CMP to RCP in on the triple 72” pipes before the Thanksgiving Holiday.