Concrete and Metal Installed at Gastonia

 

Crews installing concrete pipe

Storm crews installing storm pipe through the basket wall, which when complete will discharge drainage from nearby areas and to the relocated Duhart’s Creek.

 

Truck turnaround area and loading dock shown

Crews finishing up the truck turn around concrete paving; this area will allow full access to the load dock for delivery to the building as it is now completed.

 

Curbing Crews Working on north side of site

Our crews have placed curb on the North side of the building and in the eastern side of the parking lot including completing almost 3,000 linear feet in one day.

 

Excavation for raft footing

Crews are excavating for the raft foot to support the basket wall. This leg of the wall runs to approximately where the trucks are sitting in the picture. At that point the wall changes to a concrete-covered soil nail wall.

 

Site Overview of Civil Operations

The construction of bridge and wall backfill areas are shown above as crews perform their various assigned tasks.

 

Entrance and Blade Tower

The blade tower and front entrance is nearing completion. EIFS was finished last week and now the crews are working on the metal studding for the façade and over the entrance area.

 

Left side and rear of building

The rear and side elevations were finished and the fine grading near completion around the building. There is still a lot of work to be done, but Gastonia takes one more step towards completion each day.

Progress in all areas of Gastonia

 

Area shown is one of two islands in the parking lot

There are two long “islands” that were prepped for curb pouring. These islands will separate the two parking lots at Gastonia.

 

New utility poles shown before lines are relocated.

The relocation by AT&T of the utility service will have to be completed before the widening of Cox Road and new sidewalk construction can be completed.

 

Excavator placing fill material

 

Fill Material Shown here

Crews used an excavator with a 60’ long reach to place the fill material between the 78’ wide arches. The photo above shows the various materials and the need for some of the work to be done by hand.

 

A top view of the raft footing at the south side of the arches

The raft footing that started last week has 4’ of washed stone and 4 layers of grid inside. The 23’ high wall will be constructed on top of this footing.

 

Crews prep for a pour near the loading dock

First pour of concrete for Truck Turn Around Area.

Sitting on 6” of stone, the concrete slab for the truck turn around area got its first pour. This is the first of the +/-400cy of 4500psi concrete that is required for truck turn around area.

 

Walk-in Storage Cooler installed

Cooler/walk-in storage has been installed and the next step includes installing quarry tile and stainless base/trim.

 

Metal Stud Installation

Metal studs were installed at the front Guest Services area. Once completed, the electrical work will begin and then the area will be finished by the sheet rock and paint crews.

 

Duct Work Installed

Duct work in the front vestibule area was completed and wrapped. The metal stud installation shown on the right in the photo above was completed as well and sheetrock crews will be the next in this area.

 

EIFS work shown on external of building

The blade tower section of the building received EIFS this past week and is ongoing. This area, on the left side of the building, is where the signage will eventually be installed.

The Three Rs in Gastonia: Raft footing, Rip Rap and Rubber Membranes

Hydromulch on corner section of site

The SW corner slope with ECO-Flex hydro mulch held up well to the past week of storms that dropped over 3” of rain in 7 days.  The mulch has seed, fertilizer, and tachafier (a type of polymer) that helps the organic mulch bond to the soil and helps reduce eroding of the slope.

Basket wall construction

The civil construction continues as the site contractor cuts out an area for the basket retaining wall. These walls once finished will measure over 40 feet; starting at the cut from the top of slope to the bottom where the wall footing will be.

Waterlines progress around site

The waterlines are being laid and crews are ready to tie it into the existing lines around the site. Before service can be sent to the building, the lines will have to be filled, flushed and treated with chlorine. In addition, the lines will be tested for bacteria as well.

Rip rap spread amongst the footing

We are using rip rap to condition and stabilize the ground under the raft style footing for the basket walls.  Rip rap is the rock or other material used to strengthen structures against water and natural erosion.  The basket walls will cross over each end of the double arches and hold the roadway to be constructed above.

Crews complete the raft footing after the rip rap install

The raft footing for the basket walls shown have 3 layers of geo grid and 2 ft of stone that is wrapped by another fabric like a “burrito”. This type of footing is used for the basket walls so that the wall is able to move and float on the marginal soils underneath without compromising the integrity of the wall itself.

Roofing crews installing membrane

The building work this week featured our crews began working on installing the membrane for the roof. In the photo above, the white area of the roof is the rubber membrane. This membrane is lightweight and allows for rain water to move more freely.

 

 

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.

 

 

Bridge Center Foundation Completed…

We worked around the weather fronts this week and were able to complete the center foundation component for the bridge as well as the headwall for the Triple 72” on the downstream side.

We also made progress with the vertical construction and completed approximately 50% of footings.  The masonry crews were quick to chase the foundation crews as soon as we poured footings .

In an ideal project, each trade will tend to nudge or “pace” the next trade which is our goal here.

Building Pad Turnover Milestone Reached

We reached a milestone last week when we turned over the building pad to our building superintendent which means that we are now going vertical with our buildings.

Last week our site crews completed one head wall of the triple 72”’s  storm pipe, that you see below, and have now moved to the next one.

Our foundation crews for the bridge were able to pour one of the bridge footings the first of the week, worked through the week driving H piles and formed the east footing for a Friday evening concrete pour.

The site has changed significantly over the past few weeks, despite the challenging weather. Thanks to all that have helped to make our promises kept thus far.

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.

Fine Grading Operations have begun, no thanks to the weather!

We have been working a seven day work week the last couple of weeks to get the fill material finished for the pad and staging area, followed by the fine grading operation.  The only exception when delayed by the ice and snow of last week.

We have now completed the sheet piling that surrounds the bridge footings and will start driving “H” piles the first of this week. De-water of the area is the main operation for now.

Our Utility crews have been doing double duty to get the water and storm in around the building.

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.