Archive for category: Governmental Agencies (Page 8)

You are here: Home / Governmental Agencies

Private Development – One East Camelback Storm Drain Improvements

22 Oct 2013/0 Comments/in /by

Phoenix, Arizona – DBA’s scope of work included:

  • Concrete and asphalt sawcutting and removals
  • Valley gutter removals
  • Installation of 12” ductile iron pipe for drainage
  • Replacement of both the concrete paving and the asphalt paving
  • Curb replacement
  • Striping

The contract was awarded in September, but the City required all construction to be halted between early November through New Year’s Day to accommodate holiday shoppers and the accompanying added traffic.  Most of the underground work was completed during evening and weekend hours so that traffic could be opened up for daily commuters on Monday morning.

Extensive potholing was executed prior to beginning the work which revealed multiple utilities within the footprint of the project including existing water, sewer, high pressure gas and communications.  Some utility relocations were required.  It was also discovered that several pipes had been installed with the building’s infrastructure but had not been connected to the nearest manhole.  This was also accomplished during construction.

ADOT – Quiet Pavement Program (Phases 1, 3, 5, 7)

22 Oct 2013/0 Comments/in /by

Arizona Department of Transportation, Various Freeways, Arizona – In an effort to reduce highway noise affecting adjacent homeowners and businesses, ADOT began researching and analyzing the effects of including asphalt rubber friction course (ARFC) on local valley freeways and highways needing expansion or repairs.  Beginning with I-17 and US-60 as a Pilot Program, as part of the plan to expand with an HOV lane, ADOT selected to utilize the ARFC method rather than the typical PCCP replacement methodology.  The entire project was completed in multiple phases which is a continuing process throughout the Maricopa Association of Governments (MAG) region.

Several prime contractors were selected based on low bid for each phase of the Pilot Program and DBA was on several teams to provide the prime contractor with the initial PCCP slab repairs, sealing deck cracking with methacrylate on bridge structures, epoxy injections, and removing and replacing failing bridge deck joints prior to the placement of the ARFC.

  • Phase I – Fall, 2003 – Loop 101 (Union Hills Drive to 31st Avenue, 21st Avenue to SR-51, and Frank Lloyd Wright Bl. to Mountain View).  SR-51 (Loop 101 to Cactus Road), and a section of the Loop 202 (Gilbert to Higley).
  • Phase III – Spring, 2005 – I-10 (I-17 to 67th Avenue and SR-51 to Van Buren), and two sections of the Loop 101 (8th Street to US-60, and Scottsdale Road to Frank Lloyd Wright Bl.)
  • Phase V – Fall, 2005 – Loop 101 (31st to 21st Avenue, Tatum Bl. to Scottsdale Road, and Price to McKellips Road).
  • Phase VII -Fall, 2006 – I-10 (the Agua Fria River to 67th Avenue).

Each Phase of the project included multiple bridge structures requiring proper sealing and repairs.  DBA performed full depth PCCP repairs, remediation of longitudinal and transverse pavement joints, bridge deck rehabilitation, bridge deck joint removal and replacement.

ADOT – Cattle Guard Replacements

22 Oct 2013/0 Comments/in /by

Arizona Department of Transportation, Globe District – The project included:

  • Removal & replacement of existing cattle guards
  • Excavation
  • Recompaction
  • Concrete foundation placement
  • Placement of grilles
  • Fence frame supports
  • Fence wires
  • Temporary detours
  • Traffic control
  • Landscaping replacement where necessary.

Some of the work was done on Indian Reservation land and, as a result, required strict attention to cultural resources.

Cattle guards were located along US-60, SR-260, SR-77, US-180, SR-177, and SR-188.  A total of 72 cattle guards were included in the contract.  Several ADOT Maintenance Districts were responsible for the projects including Globe, Roosevelt, Show Low and Springerville.

All of the cattle guards are located within State or National Forest land and, therefore, subject to unique environmental standards associated with construction in forested areas.  This required equipment to be washed at the construction yard prior to entering the work site and inspected prior to exiting the work site in order to prevent invasive species seeds from being transported outside.

ADOT Breakaway Cable Terminal Replacements Ph 1 & 2

28 Jul 2013/0 Comments/in /by

Statewide, AZ – Phase 1 replacements were completed along Interstate 10, Interstate 17, US-60, Arizona State Routes 101, 202, 143, and 87 for a total of 109 individual locations/work sites in Maricopa County.  Phase 2 included the replacement at 33 separate work sites.
DBA’s scope of work included:

  • Demolition of the existing BCT’s and their concrete foundations
  • Removal of the demolished materials to a salvage yard
  • Surveying
  • Soil compaction
  • Placement of aggregate base course
  • Construction of the new Impact Attenuators
  • Placement of new guardrail, concrete curb & gutter
  • PCCP placement and asphaltic concrete friction course
  • Electrical
  • Signage & striping
  • Landscaping

The DBA Team developed a work sequencing plan at various sites that allowed the project to complete 39 days ahead of the original schedule.

DBA Construction, Inc.

Since 1996, DBA has successfully completed heavy civil projects in markets across the southwest. DBA's expertise is diverse and includes Airports & Airfields, Power Generation & Transmission, Irrigation & Flood Control, Mining & Industrial and Municipal and Governmental markets. The use of innovative solutions to construction challenges and DBA's commitment to exceeding client expectations is demonstrated in our client's continued trust in us.
© Copyright - DBA Construction - Website by Mission Critical