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DBA Constructs Two New Shooting Ranges

09 Jul 2019/in , , , /by

Under our existing Job Order Contract with the Arizona Game & Fish Department, DBA has completed a new shooting range in Kingman and is under construction for a new sharp-shooter range in Sierra Vista.

Near Kingman, at the 7-Mile Shooting Range Facility, DBA was responsible for the earthwork associated with the reconstruction of a high-power rifle range with 50 meter long berms on both sides of range with 7-foot high retaining walls.

Within the same facility, DBA was contracted to dig out a new below-grade hand-gun shooting range with 20-foot high retaining walls.

Upon completion of the Kingman project, DBA was awarded a second contract with AZ Game & Fish to build a new sharp-shooter facility in Sierra Vista, Arizona. The project will be built in three phases to include the West Berm Range 3 with 20-foot tall earthen walls, the backstop berm at Range 3, and a 20-foot tall backstop berm at Ranges 1 & 2.

Both facilities required heavy earthmoving operations. The Sierra Vista facility required hauling and placement of more than 19,230 CY.

Salt River Recreation Area Gets Bridge Improvements

22 May 2019/in , , /by

Through DBA’s Job Order Contract with the Maricopa County Department of Transportation (MCDOT) for Bridge Deck Repairs, we were recently awarded a job order to complete necessary improvements to the bridge across the Salt River along Bush Highway.  The bridge is heavily used for camping, boating, tubing, and picnicking along the Salt River Recreational Area near Apache Junction.

Over time, the bridge had worn out the bearing pads under the deck and they were slipping out of place at one end of the bridge.  DBA drilled holes through the bridge diaphragms to get to the bearing pads.  We utilized a system for jacking up the entire deck at one end to replace all of the bearing pads (a total of 6).  After the new pads were put in place, DBA crews began the process of placing an Epoxy seal on the deck (closing one half of the 4-lane bridge at time in order to allow traffic to continue to flow).

Peoria Awards Bridge JOC to DBA for Second Term

06 May 2019/in , , /by

In November, 2013, DBA Construction was awarded its first Job Order Contract for Bridge Deck Repair and Rehabilitation with the City of Peoria.

Awarded for a single year with the possibility of four additional contract years awarded based on performance, DBA recently completed its fifth year with the contract.

In March, 2019, the City issued the RFQ for Bridge and Guardrail Repairs and Rehabilitation (2019) and DBA, due to their efforts, was again rewarded with yet another JOC with Peoria.

Quartzsite Project Completed Ahead of Schedule

30 Nov 2018/in , , /by

The Town of Quartzsite, in far western Arizona, advertised an Invitation to Bid on a project requiring multiple street and drainage improvements throughout the Town. DBA was the apparent low bidder on the project and recently completed the project ahead of the original schedule. Construction sites were located in both residential areas and along major thoroughfares where extensive traffic control and coordination with adjacent businesses was required. Streets affected included: Johnson Avenue; Cowell Street; Mountain View Lane; and Cholla Road. Our scope of work included:
> Removals of existing pavement and concrete flatwork (curb, gutter, sidewalks, driveways, etc.)
> Roadway excavation
> Subgrade preparation
> Construction of new concrete curb, gutter, sidewalks and driveways
> Construction of new concrete scuppers, valley gutters and concrete-lined channels for drainage
> Rip-rap placement
> Construction of a concrete, low-water crossing
> Installation of gabions
> Placement of both AC and PCC paving
> Adjustment of manholes
> Installation of new signage, striping, and pavement markings

Specialty Work Completed at Yuma Proving Ground

12 Nov 2018/in , , /by

Hired as specialty subcontractor for the U.S. Army MATOC (Multiple Award Task Order Contract) task order, the project was to repair two existing brine evaporation ponds (approximately 5 acres total) at Yuma Proving Ground to help prepare the ponds for a new geotextile liner. Through our extensive work at Palo Verde Generating Station and other locations using geotextile liners, DBA was recommended for this important military project. Our scope of work included:
* Remove the existing liners and dispose at landfill
* Fine grade the slopes on the north and south ponds
* Dig anchor trenches around both ponds and backfill after the new liners were installed
* Repair an inflow diversion structure
* Temporary removal and reinstallation of barbed wire fencing around both sites
Through our value-added/innovation meetings, DBA was able to incorporate several ideas for budget savings that gave the project an additional $12,000 and saved 5 days on the original schedule.

DBA Provides Better Access for Tempe

02 Nov 2018/in , , , /by

The City of Tempe had built numerous, multi-use paths in various locations across the City. At 11 different locations, access to the multi-use path for use by the City street sweeper crews was hindered by the lack of continuous access from the neighboring street or alleyway. In some locations, the only access to the path was to drive over several hundred feet of dirt and rock. This surface was not optimal for the sweepers. Submitting a bid on a hard bid project, DBA was awarded the contract as the lowest responsible bidder. Our scope of work included:

Surveying
Subgrade preparation
Placement of aggregate base course (ABC)
Placement of AC paving
Construction of concrete sidewalks
Construction of concrete driveways
Demolition of existing terrain
Removal of existing signage, posts
Relocation of irrigation sleeving
Modification to landscaping
Striping and pavement markings

Scottsdale Gets Extension of Multi-Use Path

26 Oct 2018/in , , , /by

Working directly adjacent to Scottsdale’s City Hall Complex which includes City Hall, Capital Project Management, Engineering, Development Services, the Main Library and the Center for the Arts, DBA was contracted through our Job Order Contract to build out the multi-use path from the Indian Bend Wash (east of Miller Road) down Second Street to 75th Street where it connects to the downtown complex.

The job order included widening the existing sidewalk from 6′ wide to 12′ wide (creating the multi-use path) to accommodate bicycles, skateboards, Segways and pedestrians. The extension connects the park at Indian Bend Wash with the downtown buildings and the library.

Extensive communication was required to coordinate construction efforts with adjacent homeowners and businesses along the route and traffic control measures were also very important to maintain access and protect the driving public along busy Miller Road. DBA’s scope of work included:

> Demolition of existing pavement and concrete flatwork
> Subgrade preparation
> New A/C paving
> New concrete curb, gutter, driveways, and the multi-use path
> New ADA ramps
> Manhole adjustments
> New catch basins
> Trenching for new electrical conduit
> New masonry retaining wall at the library
> Storm drain connections
> Relocation of control cabinets and traffic signal boxes
> New signage and striping/markings
> New street lights/signal poles/mast arms
> Minor landscaping and placement of decomposed granite
> Replacement of the existing stairs with an ADA-compliant ramp from the street level to the garden level at the City’s park

Multiple areas required special attention and “field fit” minor design services were included to work around existing irrigation piping and traffic signal poles.

Bridge Deck Overlay and Sealing JOC Sets a New Standard

22 Aug 2018/in , , /by

DBA received a new Job Order Contract (JOC) from the Maricopa County Department of Transportation (MCDOT) in late 2017. Earlier this year, we were finally asked to provide services to the County to repair six bridges across the County. Each bridge was contracted as a separate job order and included Epoxy bridge deck sealing services and some minor concrete repairs, as well as restriping and raised pavement markings. Some of the bridge work was completed overnight with full closures approved by MCDOT and others required DBA to have at least one lane open in each direction at all times, requiring completion of those bridges in halves. The six bridges included:
> Eagle Eye Road at the Central Arizona Project (CAP)
> Patton Road at the CAP
> 163rd Avenue at the CAP
> Wickenburg Road at the CAP (also known as Aguila Road)
> El Granada at the Beardsley Canal
> Dysart Road at the Beardsley Canal

The client’s representative, Jimmy Camp – Bridge Engineer commented that “This work really turned out nice. DBA is doing a great job for MCDOT on this project! The overlay work was night work which we required a manufacturer’s representative on site. MCDOT got a better job than anticipated.”

Overnight Concrete Pour at Luke AFB

20 Jun 2018/in , , , /by

DBA crews worked overnight on Monday to pour concrete at Luke AFB for the F-35 Fuel Offload Facility project. The project includes multiple underground structures and extensive Portland Cement Concrete paved (PCCP) areas for the loading and off-loading of jet fuel at the tank farm. This project is an addition to the project DBA constructed two years ago at the Base for new fuel tank foundations and concrete drives.

Work at Water Campus Provides Big Infrastructure Upgrades

04 Jun 2018/in , , /by

Utilizing DBA’s Job Order Contract with the City of Scottsdale, several infrastructure improvements projects were recently completed.  The original project to build the Water Campus included funding only for the treatment and conveyance of water.  No funding was spent to improve the general infrastructure for the site which resides in a floodplain.  Several job orders were undertaken over the course of multiple years that included:

  • Water Campus Paving Improvements – DBA was responsible for the paving of all dirt access roads throughout the 15-acre site.  Our scope of work included roadway excavation, subgrade preparation, AC and PCC paving, constructing valley gutters, curb and gutter, provide crack sealing, adjust manholes and extensive erosion control.
  • Water Campus Drainage and Utility Infrastructure – DBA was contracted to provide earthwork and extensive trenching throughout the facility to install conduit for future solar array uses, install multiple concrete vaults, and manholes.  The drainage improvement project included extensive grading, hand placement of rip-rap on new retention basin slopes, placement of curb, gutter and valley gutters, aprons, adjustments to utilities and AC paving.  The project also included the installation of a 3-barrel, elliptical storm drain pipe going under the perimeter wall and tying into the existing storm drain system under Union Hills Drive.
  • The first job order was to provide the Water Campus with improved landscaping and hardscaping that included an awning over the main office entrance, installation of additional decomposed granite on slopes for retention basins, concrete benches and trash receptacles and the relocation of some large cacti to enhance the look of the area near the main office.

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