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Project Experience Summaries: Construction

Services:
Construction, Cable Survey + Mapping

Scope of work:
Down Under Construction (DUC) was contracted to over-set manholes and survey all associated plant for a leading national networking services provider on their existing system throughout the District of Columbia. Work consisted of excavating the existing fiber optic cabling system and over-setting a larger, secured shelter style manhole over the client's facilities. In the second phase of the project, the duct was sliced open and the existing cable was racked to the new manhole wall. All conduits were then surveyed and routes mapped from the new manhole to existing manholes. All ducts were identified, and tagged by carrier within the system for future repair or maintenance. DUC's final phase of the project was to complete restoration for each manhole to the District of Columbia's specificatio
ns.


Services:
Construction, Traffic Control

Scope of work:
DUC was contracted to excavate and install a duct system for Comcast working directly for a project subcontractor. Excavation involved an open cut approximately 3000 feet along K Street and 3rd Street NE in Washington, DC for placement of two 4" PVC and three 4'X4'X4' manholes. Traffic management and control was emphasized to assure the safety of both pedestrians and motor vehicles in this heavily traveled portion of the District of Columbia. DUC provided crews on a constant, 24-hour rotation to minimize the impact of construction and to complete the project on schedule. Restoration included both concrete and asphalt.


Services:
Construction

Scope of work:
Via an ongoing service contract, DUC has completed multiple projects to date for one of the nation's premier fiber optic and multi-mode telecommunications carriers, totaling over 30 miles. Projects have had a wide range of scope to include open cuts for conduit and duct bank installation, placement of manholes, placing fiber optic cable, building lateral entrances, and DOT right-of-way restoration.


Services:
Construction

Scope of work:
Through a long-term, continued relationship, the client awarded DUC a communication and power conduit installation project on Langley Air Force Base. As the expanse of DUC's successful military projects has grown, DUC has gained significant recognition for completing sensitive projects in secured government environments. In this particular scope-of-work, DUC trenched and placed a concrete encased duct bank with multiple manholes. A challenging portion of the project specified use of a 30" auger drill with steel casing along an active runway. Additionally, the project required excessive depth for placement of the duct bank. Throughout the deeper excavation, DUC had to maintain continuous de-watering efforts when placing manholes and duct bank due to the high water table.


Services:

Construction

Scope of work:
The primary deliverable in this highlighted project was the communication conduit to be installed in a roadway to connect the Discovery Building in Silver Spring, MD to Verizon's plant. DUC placed new manholes and connected the fiber to the existing Verizon manhole system. DUC also performed the final restoration to the roadway where traffic mandated extensive traffic control. The restoration on the excavation location was completed to the satisfaction of the landlord, carrier, and client.


Services:
Construction, Engineering, Permitting

Scope of work:
DUC engineered, permitted, and installed the OSP and ISP for a unspecified government agency. DUC directional drilled the route to tie the secured facility into an existing MFN conduit and then excavated for two building entrances. The location of the building penetrations required a tunneling operation under the building foundation for the core drilling into building. DUC placed all EMT, inner-duct, and pull boxes along route to inside the building to reach the client's secured demarcation. The completion of the project consisted of pulling the cable from the existing MFN hand-hole as well as new hand-hole that was over-set on existing facilities into the customer's equipment room inside of building. Restoration included asphalt, concrete, and landscaping.


Services:
Construction, Engineering, Permitting, Project Management

Scope of work:
This high visibility project involved four sub-grade entrances with directional boring, hand trenching, placing hand-holes, and pulling fiber. Both scopes of work required detailed planning and coordination with the client to determine changes in building entrances and running precise multiple routes to ensure secure circuits. Landscape restoration was extensive, and required a full re-planting of mature trees and shrubs.


Services:
Construction, Design / Engineering, Project Management

Scope of work:
As the preferred contractor for Washington Metro Area Transit Authority's (WMATA) passenger rail system, DUC was contracted by a world-leading telecommunications provider for the installation of fiber optic cable within WMATA's tunnel system. DUC designed, engineered, and installed fiber optic cable for both the client and WMATA in the tunnels. The work was performed only during a three-hour limited work window from 1:30 AM to 4:30 AM. DUC maintains excellent communication with the Transit Authority's telecommunications personnel, and as a result, was able to utilize this limited daily window of production to coordinate and deliver the project within budget and on-schedule. Cable was installed with clips to the tunnel walls and pulled through an existing manhole system as well as the passenger stations' plenary areas. DUC has the most experience out of any other contractor performing work within the WMATA system with over 70 miles completed for various carriers to date. DUC is also certified with the CSX and Amtrak systems for rail safety and cabling installation specifications and tolerances.


Services:
Construction, Materials Management, Warehousing

Scope of work:
In this construction contract, DUC installed both telephone and power duct banks. Several roads joining, and adjacent to the U.S. Courthouse in Alexandria, VA were open cut for placement of concrete capped duct banks. The second phase of the construction project provided the installation of manholes for a new upgraded security system. DUC provided all the specified materials as well as warehousing for the project. This warehousing of materials for Venus allowed for greater efficiency on the job and afforded Venus the ability to review their inventory on a daily, weekly, or monthly basis.


Services:
Construction, Warehousing

Scope of work:
DUC was awarded this high-profile project for their extensive experience working in sensitive and secured environments. The contract was for the construction and installation of a communications duct bank for a world-leading voice, data and wireless provider. The GNW Ring for this provider spans a major segment of the Nation's Capital, from 4th Street and New York Avenue to Union Station and across Washington DC to the White House. The construction route specified varying sized duct banks, the largest being a twelve-way system. DUC also placed all manholes and fiber for the new system. DUC completed the final restoration to the city streets and sidewalks to the District of Columbia's specifications.


Services:
Construction

Scope of work:
One of the pioneering companies in the "communications by light" fiber optic throughput industry awarded DUC a communication lateral into 2000 Pennsylvania Avenue, Washington, DC, just a few blocks from the White House. The construction project entailed an open cut approximately 320' along "I" Street for placement of (2) 4" conduits. The sub-grade penetrations required DUC to X-ray and core drill the building foundation. DUC then pulled fiber into building for termination to our client's customer. DUC also provided and placed a 4'X6'X4' manhole and tied into an existing manhole. DUC served as the lead to coordinate project details with all parties involved on the project. DUC was also contracted to conduct the final milling and overlaying of "I" Street as well as the intersection of 21st and "I" Street. All work was completed at night and the project was delivered ahead of schedule.

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