The Pentagon Renovation Program or PENREN was a long-term project by the United States Department of Defense to perform a complete slab-to-slab renovation of The Pentagon in Arlington, Virginia. The program began in the 1990s, and was completed in June 2011.
The full-scale renovation became necessary because by the mid-1990s, the Pentagon had never undergone a major renovation, and building systems had deteriorated beyond repair, requiring complete replacement. Asbestos throughout the building made almost any building work complex and disruptive.
The Defense Authorization Act of 1991 transferred control of the Pentagon Reservation from the General Services Administration to the Department of Defense, and established the Pentagon Reservation Maintenance Revolving Fund, designed to fund Pentagon renovations. This move enabled the Secretary of Defense to determine rent rates for Pentagon tenants to help fund the renovation.
The basic information system infrastructure in the Pentagon was installed long before the advent of personal computers, facsimile machines, video teleconferencing, and digital telephone service, and has evolved without a design plan. In 1943, when the Pentagon was built, there was one telephone for every three employees. Over the last 57 years, new information technology capabilities have emerged and the new systems have been laid on top of the old. Over time, this merging of technology has become unmanageable and not easily upgraded. As requirements emerged, facilities and systems were added with little or no regard to existing capabilities or long-term requirements. The individual military departments and agencies engineered and installed equipment and cables to meet their immediate specific needs.
The objective of the ITS effort is to provide cost-effective services and capabilities that will best serve the needs of the Pentagon tenants and Department of Defense senior leadership by leveraging technology advancements and designing and developing integrated systems. The information technology modernization is being accomplished in conjunction with the building's wedge by wedge renovation.
The renovated Pentagon contains over 1,700 miles (2,700 km) of cabling, more than 100,000 voice, data, and video drops, 50,000 data faceplates, and 16 consolidated server rooms, down from 70 server rooms before.
When the Washington Metro's Pentagon station originally opened, access to the Pentagon from the station was gained through a direct underground entrance. An outdoor bus station also existed at the station's street entrance.
As part of the renovation, vehicular traffic was moved further away from the building itself, and the direct entrance from the Metro station was eliminated in order to enhance security. This involved constructing a new dual-level bus station beyond the original bus station, and constructing a new Metro entrance facility. The new entrance facility is accessed from street level, with a covered path leading from the bus station past the Metro station entrance to the Pentagon itself.
In addition, the opening of the bus facility marked the return of bus traffic to the Pentagon, after having been moved to the Pentagon City station due to security changes made following the attack on the Pentagon on September 11, 2001.
The Navy Build-Out project is located in the basement of Wedge 4 and consists of approximately 30,000 square feet (2,800 m2) of occupiable space. Demolition and abatement of this space was completed in November 2001 By Nuprecon Demolition Inc. The Build-Out was awarded to Gilford Corporation in September 2001 and construction began in early November 2001. The contractor designed and constructed office space, conference/training rooms, and supporting spaces including mechanical rooms, telephone closets, electrical closets, bathrooms, equipment rooms, etc. to house the Navy.
In order to fulfill the new structural requirements of the renovation design over 200 helical screwed piles were installed through the existing slab on grade to support a new floor slab. Demolition and abatement of the space was completed in November 2001. Build-out was awarded to Gilford Corporation with Design by Ai Architects on September 14, 2001. The original completion date was set as March 2003, with tenant move in scheduled for April 2003. The project was completed in June 2003.
The original facility, the Pentagon Officers Athletic Club was located east of the Pentagon on the opposite side of the abandoned railroad track. It has never undergone a physical renovation. PAC management has made it a point to keep the facility updated with modern equipment. However, the projected increase in usage would soon exceed the amount of space available. The replacement PAC is located on the north side of the Pentagon next to the Remote Delivery Facility and new helipad and is more than 50% larger, and accommodates 8,000 members per day, compared to the 2,000 members per day supported by the POAC. The additional space increased the facility's capacity to bring in more workout equipment, allow for more varied exercise areas and rooms, and help to reduce crowded conditions during peak hours.
The Pentagon Library and Conference Center project, also known as PLC2, transformed the former Pentagon Athletic Center into the new home for the Army library, sixteen conference rooms operated by the Department of Defense Concessions Committee, several offices under the Pentagon Force Protection Agency, and also a cafe for catering purposes. Design elements include a two-story grand hall entrance, terrazzo flooring, and large skylights to provide natural light.
Due to the former Pentagon Athletic Center's being completely underground, in creating the new facility, PENREN had to completely demolish the original structure, leaving only the surrounding walls and roof intact.
The Pentagon Memorial is located on the southwest side of the Pentagon that was struck on September 11, 2001 and is designed so that the nation may remember and reflect on the events that occurred on that date. The Memorial is free and open to the public seven days a week. Groups and individuals are welcome in the Memorial each day but guided tours are not offered; the Memorial is meant to be experienced on a more personal level. The Pentagon Memorial is located at 1 Rotary Road on the Pentagon Reservation in Arlington, Virginia. Although most other such memorials are located either near the main entrance or the north side of Arlington Cemetery, the Memorial is within walking distance of the new United States Air Force Memorial and share parking with it.
Similar to other PENREN construction projects, the Memorial Project is also focusing on sustainability. The project's sustainable efforts include: site development through reclaimed land development and its proximity to mass transportation; and in high efficiency through low impact mechanical, electrical, and plumbing (fountain) systems. Additionally, the Memorial project teams are tracking erosion and sediment control, stormwater management, and light pollution reduction. The Leadership in Energy and Environmental Design (LEED) credits achieved from this project will contribute to the overall Pentagon Reservation certification.
The Phoenix Project was the name given to the project to repair the damage to the Pentagon caused when American Airlines Flight 77 crashed into the building during the September 11, 2001 attacks. The project's goal was to reoccupy the outermost ring of the rebuilt section by September 11, 2002. This goal was bettered by nearly a month, with tenants moving back in on August 15, 2002.
The project entailed the complete demolition and reconstruction of the C, D, and E Rings in the area of the boundary between the recently renovated Wedge 1 and the unrenovated Wedge 2. Wedge 1 space would be fully rebuilt, while only the building shell would be rebuilt for Wedge 2. A full build-out for the Wedge 2 space would be completed at a later time.
The phrase "Let's roll", as spoken by Todd Beamer on United Airlines Flight 93, was adopted as the project's slogan, and displayed prominently on the building's exterior during the reconstruction work. A clock counting down the time until 9:37 AM on September 11, 2002 was located on site as well.
The Remote Delivery Facility (RDF) is a new 250,000-square-foot (23,000 m2) shipping and receiving facility adjoining the Pentagon. The RDF significantly improves the physical security of the Pentagon by providing a secure consolidated location for receiving and screening thousands of items shipped to the building each day.
The Remote Delivery facility contains 38 loading docks, and receives an average of 250 trucks per day. The roof is landscaped to create a park-like atmosphere, and is the first major project to utilize a design-build delivery system. The Pentagon helipad was relocated from the site of the Pentagon Memorial to the roof of the RDF.
Initiated as a direct result of the terrorist attack, the Pentagon Roads, Grounds, and Security projects will enhance Pentagon perimeter security. With a combined total value of $35 million, these initiatives will increase standoff distance between the Pentagon and public roadways. These projects were completed October 2004.
Two Roads, Grounds and Security Projects are the Remote Delivery Facility Secure Access Lane along Route 27 and the Pentagon Secure Bypass Lane which involves the rerouting of Route 110 through the Pentagon North lot.
Pentagon Secure Bypass - Scope of Work:
RDF Secure Access Lane - Scope of Work:
To keep the Pentagon operational at all times during renovation, one fifth of the building's 25,000 occupants must be relocated to swing space, temporary office space in and around the Pentagon. The vacated "wedge" of the Pentagon is then sealed off for demolition and abatement. Over 1,000,000 square feet (93,000 m2) of external swing space was built-out in nearby Rosslyn and Crystal City. Over 45 floors of office space had to be connected to the Pentagon's voice and data communications systems. 
Wedge 1 was the first above-ground section of the Pentagon to undergo renovation. Demolition of the existing structure and hazardous material abatement began in 1998, and the first move-in of tenants occurred in February 2001. The last tenants moved in on February 6, 2003.
The renovation of Wedge 1 involved the renovation of one million square feet of space. This involved the removal of 83 million pounds of debris (70% of this was able to be recycled), and 28 million pounds of hazardous material. The renovation also saw the installation of eight new passenger elevators, new blast-resistant windows, escalators traversing all five floors, skylights, a new HVAC system, a new communications infrastructure, and a new open-plan office layout.
Wedges 2-5 is a phased design/build renovation of 4,000,000 square feet (370,000 m2) of space in the Pentagon. The project brings all remaining un-renovated areas of the building into compliance with modern building, life safety, ADA and fire codes. Work includes removal of all hazardous materials, replacement of all building systems, addition of new elevators and escalators to improve vertical circulation, and installation of new security and telecommunications systems. Renovated spaces will be modern, efficient, and flexible. The project, underway since September 2001, is on an accelerated schedule for completion in December 2010, four years sooner than originally planned.
Sustainable design measures have been integrated into the design. The Wedges 2-5 project is enrolled in the Leadership in Energy and Environmental Design (LEED) Existing Buildings Pilot Program, and is working to achieve a gold rating. Force protection initiatives prompted by the September 11, 2001 terrorist attack have been successfully incorporated into the design. These include increased blast resistance, improved fire protection/life safety, and inclusion of chemical, biological and radiological (CBR) protection.
Key project challenges include integration of changing requirements (primarily telecommunications and force protection upgrades), tenant requirements gathering, and coordination of project turnover/tenant relocations. The September 11, 2001 terrorist attack caused the Renovation Program to reassess and upgrade project design criteria in many areas. Identification and implementation of the new criteria has been extremely challenging because design and construction had to proceed while studies were in development in order to meet the overall accelerated program schedule. Tenant requirements gathering has historically been a challenge for the Renovation Program and continues to be a challenge for Wedges 2-5, particularly for nontypical tenant spaces. Project turnover and tenant relocation to newly completed space is a complex effort. It must be carefully orchestrated to ensure a smooth transition for tenant missions and timely release of new areas for renovation.
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