United States Government Accountability Office

GAO Testimony 

Before the Subcommittee on the 

Legislative Branch, Committee on 

Appropriations, U.S. Senate 

CAPITOL VISITOR 

CENTER 

Status of Project’s 

Schedule and Cost as of 

March 15, 2006 

Statement of Bernard L. Ungar, Director 

Terrell Dorn Assistant Director 

Physical Infrastructure Issues 

For Release on Delivery

Expected at 10:30 a.m. EST 

Wednesday, March 15, 2006

 

GAO-06-528T 
Mr. Chairman and Members of the Subcommittee: 

We are pleased to be here today to assist the Subcommittee in monitoring 

progress on the Capitol Visitor Center (CVC) project. Our remarks will 

focus on the Architect of the Capitol’s progress in achieving selected

project milestones and in managing the project’s schedule since the 

Subcommittee’s February 15, 2006, hearing on the project.1

 As part of this 

discussion, we will address a number of key challenges and risks that 

continue to face the project, as well as actions AOC has taken or plans to 

take to address these risks. In addition, we will discuss the status of the 

project’s costs and funding. 

Our remarks today are based on our review of schedules and financial 

reports for the CVC project and related records maintained by AOC and its 

construction management contractor, Gilbane Building Company; our 

observations on the progress of work at the CVC construction site; and our 

discussions with the CVC team (including AOC and its major CVC 

contractors), AOC’s Chief Fire Marshal, and representatives from the U.S. 

Capitol Police. We also reviewed AOC’s construction management 

contractor’s periodic schedule assessments and daily reports on the 

progress of interior wall and floor stonework. 

In summary: 

Since the Subcommittee’s February 15 CVC hearing, the CVC team has 

continued to move the project’s construction forward, but we continue to 

believe, as we said at the February hearing, that AOC’s proposed opening

dates—April 2007 for the base CVC project and May 2007 for the House 

and Senate expansion spaces—do not allow enough time to complete 

several critical activities and to address problems, challenges, risks, and 

uncertainties. During the past month, the CVC team has essentially 

maintained the pace of critical interior wall stone installation, developed a 

draft work plan for floor stone installation, started to develop a work plan

to prevent a stacking of trades2

 during finish work, and maintained the 

 1

GAO, Capitol Visitor Center: Results of Risk-based Analysis of Schedule and Cost, GA0-

06-440T (Washington, D.C.: Feb. 15, 2006). 

2

Trade stacking can occur when workers from different trades, such as stone masons, 

electricians, plumbers, or plasterers, have to work in the same area at the same time to 

meet a schedule, sometimes making it difficult to ensure sufficient space and resources for 

concurrent work. 

Page 1 GAO-06-528T 
opening dates that AOC announced at the February CVC hearing. 

However, the number of activities critical to the project’s timely 

completion has increased, and several of these activities are now 

scheduled to take longer to complete than planned. In addition, wall stone 

deliveries are still backlogged, critical building systems still have to be

commissioned and tested, and although the project’s overall design is 

essentially complete, certain design elements are still incomplete or are 

being clarified or refined. If the CVC team is successful in addressing these 

issues, we believe that the base CVC project can be opened to the public 

with a temporary cap on visitor occupancy in May 2007 and that the 

expansion spaces can be opened for occupancy beginning in mid-August 

to early September 2007. Congress may even be able to occupy the 

expansion spaces earlier if AOC implements a phased opening plan it is 

considering and if AOC is able to perform acceptance testing of the CVC 

and the expansion spaces concurrently rather than sequentially—a 

possibility AOC is continuing to explore. Nonetheless, we believe that 

AOC will be challenged to meet the later dates we are projecting because 

of the problems, challenges, risks, and uncertainties facing the project. 

We currently estimate that the total cost to complete the entire CVC 

project is about $556 million without an allowance for risks and 

uncertainties. This estimate exceeds our February 15 estimate by about $1

million because AOC now preliminarily estimates that it will need about 

that much to pay for contractual support needed to complete acceptance

testing of the facility’s fire protection system in time to meet the project’s

schedule. AOC plans to use its general administration appropriations for 

this work, including funds for fiscal year 2006 that it has on hand and 

about $950,000 in fiscal year 2007 funds that Congress has not yet 

provided. To date, about $528 million has been provided for CVC 

construction. We continue to estimate that AOC will need about $25.6 

million more in CVC construction funds to complete the entire CVC 

project without an allowance for risks and uncertainties and taking into 

account funding AOC plans to use from existing appropriations. Our $584 

million estimate of the cost to complete the entire project with an 

allowance for risks and uncertainties remains unchanged because the cost

of acceptance testing is one of the uncertainties covered by this allowance.

Page 2 GAO-06-528T 
AOC’s February 2006 schedule shows, as did its January 2006 schedule, 

that the CVC base project will be ready to open to the public with a 

temporary certificate of occupancy on February 13, 2007, and that the 

House and Senate expansion spaces will be ready for occupancy on April

24, 2007. To allow for possible delays and start-up time for operations, 

AOC has proposed an April 2007 opening date for the base project and a 

May 2007 occupancy date for the expansion spaces. AOC expects all 

construction work in the CVC, East Front, and expansion spaces to be 

completed by the April opening date for the base project, but the CVC’s 

occupancy at any one time will be temporarily limited to 3,500, compared 

with about 4,200, the normal anticipated occupancy level.3

AOC Has Moved 

Construction 

Forward, but the 

Project Continues to 

Experience Delays 

and Face Risks and 

Uncertainties 

Our Analysis Indicates 

Later Opening Dates Than 

AOC Is Proposing 

We continue to believe, as we testified in February, that the CVC is more 

likely to be ready for opening with a temporary certificate of occupancy by

about the end of May 2007 than by April 2007, as AOC is proposing. Our 

projected opening is somewhat later than AOC’s because CVC team 

managers and members we interviewed believe that certain work, such as 

interior stonework and finish work for the base project and East Front, 

will take longer to complete than the revised schedule allows. Our 

projection also assumes that AOC will be successful in addressing the 

challenges it faces and takes into account the time that AOC believes will

be necessary to prepare for operations after construction work is 

completed. Similarly, we continue to believe that the House and Senate

expansion spaces are more likely to be ready in mid-August or early 

September 2007 than in April or May 2007, as AOC is proposing. We 

consider the later time frames more likely for two reasons. First, AOC has 

scheduled the acceptance testing of the expansion spaces after the 

acceptance testing of the base project and, according to our analysis, the 

base project’s testing will take longer than scheduled. Second, AOC’s Chief 

Fire Marshal believes the acceptance testing of the expansion spaces will 

take longer than scheduled. However, the expansion spaces could be 

ready sooner if AOC advances the schedule for the acceptance testing—a 

possibility AOC is exploring. 

 3

This temporary limit will be necessary because the “horizontal exits,” or passages, through 

the expansion spaces, which the life safety code requires for exiting the base CVC project,

will not be available until later. These horizontal exits cannot be used until the fire alarm

system in the expansion spaces has been fully tested and accepted—work that is not slated 

to be completed until after the base CVC is scheduled to open. Some additional work will 

likely be required to provide temporary emergency exit routes from the CVC, but the CVC 

team does not believe that this work or its costs should be substantial. 

Page 3 GAO-06-528T 
Although construction work has been progressing and the sequence 2 

contractor has met several schedule milestones, delays have continued in

a number of areas, and ongoing risks and uncertainties could cause further 

delays. AOC’s construction management contractor reported that, in terms 

of the dollar value of the work in place, the overall CVC project was about 

77 percent complete and the sequence 2 work was about 63 percent 

complete as of February 28–up from about 74 percent and 59 percent, 

respectively, as of January 31. Furthermore, as of March 13, the sequence 2

contractor had completed work on five of the nine schedule milestones 

that were due to be completed by today’s hearing, according to the 

project’s January 2006 schedule. Three of the five were completed on time

or ahead of schedule. (See table 1 in app. I.) According to AOC’s 

construction management contractor, during the last 4 weeks, the 

sequence 2 contractor installed 4,363 pieces of interior wall stone, 

compared with its 4,794-piece wall stone installation target, but installed 

only 1,590 square feet of its preliminary 3,600 square-foot floor stone 

installation target. (See table 2 in app. I.) In addition, in measuring the 

sequence 2 contractor’s February performance against the project’s 

January 2006 schedule, AOC’s construction management contractor 

reported delays in 12 of the 20 activity paths identified as important to 

meeting the base project’s overall completion date. These delays included,

but were not limited to, work in the East Front, the exhibit gallery, the 

auditorium, the utility tunnel, the great hall, and the orientation theaters 

and ranged from 2 to 36 work days, but did not affect the base project’s 

overall completion date.

4

 According to the CVC team, the delays occurred 

for a variety of reasons, such as design changes, problematic sequence 1

work, late submissions or approvals of shop drawings, and changes in the 

sequence of work activities by the sequence 2 contractor. Finally, in its 

CVC progress report for February, AOC’s construction management 

contractor said that the sequence 2 contractor’s monthly billings 

(reflecting the value of construction work done relative to the project’s 

schedule) were generally not sufficient to meet AOC’s currently scheduled 

completion date. 

The construction management contractor’s February progress report also 

showed that several House and Senate expansion space activities had 

fallen behind the project’s January 2006 schedule. These activities 

 4

However, several activities, including interior wall stone installation, penthouse 

mechanical work, and East Front fire protection system acceptance testing, were delayed 

to the extent that even relatively short additional delays could affect the CVC’s overall 

completion date. 

Page 4 GAO-06-528T 
involved work on the House and Senate circular stairs, the House and 

Senate lower levels, and space intended for use by the U.S. Capitol Police

on the service level. The CVC team said these activities were delayed 

because of (1) problems associated with sequence 1 or other sequence 2 

work, (2) redesign resulting from the CVC team’s misunderstanding of 

congressional requirements for certain space, or (3) security-related 

design changes. According to the CVC team, these delays will not affect 

the schedule for opening the expansion spaces, but could delay the base 

CVC project’s opening if the lost time cannot be recovered, since certain 

expansion space work must be completed before the CVC can be opened 

to the public. At this time, the sequence 2 subcontractor doing the 

expansion space work believes that most, if not all, of the lost time can be

recovered and that all expansion space construction work necessary for 

the CVC’s opening will be completed by December 31, 2006.

Project’s Schedule 

Remains Vulnerable to 

Problems, Challenges, 

Risks, and Uncertainties, 

Despite Actions AOC Has 

Taken and Plans to Take 

As we indicated during the Subcommittee’s February 15 CVC hearing, we 

believe that AOC will be challenged to meet even the later opening dates 

we have identified, given the problems, challenges, risks, and uncertainties 

facing the project. A brief update on these, as well as on AOC’s actions and 

plans for addressing them, follows: 

• Delivery of stone and pace of stone installation remain critical. In the 4 

weeks preceding today’s hearing, the sequence 2 contractor reported 

receiving 9 of the 10 truckloads of interior wall stone it was expecting 

from the stone fabricator, but had not received any of the 20-truckload 

backlog. According to AOC, the supply of interior wall stone is adequate 

for the CVC at this time, given the quantity on hand, providing that the

fabricator continues to deliver about 1,000 pieces a week for the next 12

weeks. However, AOC said that the pace of installation is such that 

additional delays are likely to occur if the fabricator does not deliver the 

needed stone on time. According to AOC’s construction management 

contractor, the sequence 2 contractor has installed 4,363 pieces of interior

wall stone since the last hearing, meeting about 91 percent of its 

production target. By contrast, the sequence 2 contractor has installed 

only about 1,590 square feet of floor stone, or about 44 percent of the 

quantity specified in a preliminary floor stone installation plan that the 

contractor provided to AOC shortly after the February 15 hearing. In 

addition, seven of the nine schedule milestones that AOC and we have 

been tracking for the Subcommittee for today’s hearing are related to 

interior wall stone installation, and the sequence 2 contractor has met 

three of these seven milestones. Although the sequence 2 contractor has 

recently increased the number of stone masons working on the project, 

Page 5 GAO-06-528T 
delays are likely if the targets for interior wall and floor stone installation 

are not achieved. The targets could possibly be missed if the masons are 

less productive than planned, work spaces are not ready or available for 

stonework to begin, or the fabricator fails to deliver stone on time. During 

the February 15 hearing, we noted that it was critically important for the 

CVC team to aggressively address this area. AOC and its construction 

management contractor agreed and have been tracking interior wall stone 

installation daily. In its February CVC progress report, AOC’s construction 

management contractor noted that interior wall stone delivery was the 

most critical issue at that time. 

• Trade stacking could delay completion. As we discussed during the 

Subcommittee’s February 15 CVC hearing, trade stacking could hold up 

finish work, such as drywall or ceiling installation, electrical and plumbing 

work, plastering, or floor stone installation. This work could be stacked if

wall stone is not installed on schedule. Although the pace of wall stone 

installation was essentially maintained in February, it is not, according to

AOC’s construction management contractor, sufficient to eliminate the 

risk of trade stacking and delays in finish work. Such a situation could also

increase the risk of accidents and injuries. Hence, it remains important, as 

we said at the February CVC hearing, for the CVC team to closely monitor 

construction to identify potential trade stacking and promptly take steps 

to avoid or, if necessary, address it. The CVC team has also identified trade 

stacking as a high risk, and the sequence 2 contractor has begun to 

develop area-by-area plans that will show when each subcontractor will be 

working in each area. The sequence 2 contractor expects to complete 

these plans over the next few weeks and to meet regularly with its 

subcontractors to review and update the plans. We believe this is a 

positive step but note that further delays in completing wall stone 

installation could still limit the available work space, making it difficult for 

all the trades to complete their work on schedule. AOC agrees and plans to

monitor this situation during its weekly risk management meetings with 

the CVC team. 

• Complex building systems remain a significant risk. The CVC will house 

complex building systems, including systems for heating, air conditioning, 

and ventilation; fire protection; and security. These systems not only have

to perform well individually, but their operation also has to be integrated. 

If the CVC team encounters any significant problems with their 

functioning, either individually or together, during commissioning or 

acceptance testing, the project could be seriously delayed. The shop 

drawings for the CVC’s fire protection system, which are expected by the

end of this week, have not yet been approved by AOC’s Chief Fire Marshal. 

Delays could arise if the proposed system does not meet the design 

Page 6 GAO-06-528T 
specifications or fire protection code requirements. In addition, the Chief 

Fire Marshal notes that delays could arise if the CVC team does not 

adequately pretest the system and correct any problems found during the 

pretesting. The CVC team is aware of these risks and has been taking steps 

to mitigate them as part of its risk management process. During the 

Subcommittee’s February 15 CVC hearing, we suggested that the CVC 

team reassess its risk mitigation plans to ensure that it has identified the

steps necessary to prevent major problems during the building systems’ 

commissioning or testing and has measures in place to deal quickly with 

any such problems should they arise. AOC agreed and said that the CVC 

team will be continuously assessing this situation as part of its risk 

management process. It is also important to note that the Chief Fire 

Marshal’s timely completion of the fire protection system’s acceptance

testing depends on his ability to obtain sufficient funding for a contractor

to help his staff perform the tests. We will discuss this funding issue later 

in our testimony. 

• Building design continues to evolve. The CVC has undergone a number of 

design changes. Some of these changes, such as changes in the exhibit 

gallery and in the East Front, have resulted in delays. In addition, designs 

or shop drawings for some elements of the project, such as certain 

security features, space for the Capitol guide service, and aspects of the 

facility’s fire protection systems, have not yet been completed or fully 

approved and are subject to change. Moreover, eight design changes or 

clarifications have been issued since January 25, 2006. Additional design 

changes are being considered and have the potential to cause further 

delays. During the Subcommittee’s February 15 CVC hearing, we said it 

would be important for the CVC team to carefully consider the need for 

proposed scope and design changes and try to minimize the impact of 

necessary changes on the project’s schedule and cost. AOC agreed and

said it plans to make only necessary design changes. 

• Multiple critical activity paths complicate schedule management. In 

reporting on the project’s February 2006 schedule, AOC’s construction 

management contractor identified 20 critical activity paths that are 

important to the project’s on-time completion—2 more paths than the 

contractor identified in reporting on the project’s January 2006 schedule.

According to the contractor’s report on the project’s February 2006 

schedule, several of these activities fell behind schedule during the month 

and could delay the project’s completion if the lost time cannot be 

recovered. As we have said in a number of our previous testimonies on the

CVC, having a large number of critical and near-critical activities 

complicates project management and increases the risk of missing 

completion dates. We believe that the CVC team will be particularly 

Page 7 GAO-06-528T 
challenged to manage all of these areas concurrently and to deal 

effectively with problems that could arise within these areas, especially if 

multiple problems arise at the same time. During our February 15 

testimony, we said that it would be important for the CVC team to reassess 

its capacity to effectively manage and coordinate the schedule and work 

for the remainder of the project. According to AOC, the CVC team has 

done this and believes that it has the needed capacity. While we believe 

that the steps being taken by the sequence 2 contractor to address trade 

stacking should, if effectively implemented, help in managing these critical

activities, we continue to be concerned about this issue and plan to 

monitor it closely as the project proceeds. 

• Opening the CVC and expansion spaces at different times is likely to result 

in a temporary cap on CVC occupancy and increase costs. As we reported 

during the Subcommittee’s February 15 CVC hearing, AOC’s current plan

to open the CVC in April 2007 before the expansion spaces are scheduled

for completion is likely to result in a temporary cap on visitor occupancy 

and a need to construct temporary emergency exits for fire and life safety 

protection.5

 AOC is proposing this sequential approach because it believes

that conducting the acceptance testing for the fire protection system for 

the CVC and the expansion spaces concurrently would delay opening the 

CVC to the public. Although AOC has not yet estimated the additional 

costs associated with the temporary measures that would need to be 

taken, it does not believe they will be substantial. During our February 15 

testimony, we said that it would be important for AOC to identify and 

consider the pros and cons (including the estimated costs) of opening the 

CVC and expansion spaces at about the same time and provide this 

information to Congress. AOC agreed and said that a senior 

superintendent with its construction management contractor will be 

evaluating this situation and that AOC will provide the information to 

Congress when the evaluation is complete. 

Finally, as we have said in previous discussions with AOC, its construction 

management contractor, and the Subcommittee, it will be important for 

AOC to have adequate analysis and documentation of the reasons and 

responsibilities for delays.6

 We discussed this issue with AOC and its 

 5

According to AOC, the CVC’s occupancy at any one time would be temporarily limited to 

3,500, compared with about 4,200, the normal anticipated occupancy level, until acceptance

testing of the fire protection system for the expansion spaces has been completed. 

6

See for example: GAO, Capitol Visitor Center: Effective Schedule Management and 

Updated Cost Information Are Important, GAO-05-811T (Washington, D.C.: June 14, 2005).

Page 8 GAO-06-528T 
construction management contractor again last week, and they agreed to 

reassess this area and get back to us after the reassessment is done. They 

said that although they had received requests related to accelerating 

sequence 2 work, they had not yet received any requests from contractors 

for payment of costs related to delays encountered during sequence 2. 

However, they consider such requests likely in the future and agree that 

they need good information for evaluating them. 

In February, we estimated that the total cost to complete the entire CVC 

project would be about $555 million without an allowance for risks and 

uncertainties and could be as much as about $584 million with such an 

allowance. To date, about $528 million has been provided for CVC 

construction. This amount does not include about $7.7 million that was 

made available for either CVC construction or operations.7

 According to 

AOC, it expects to use about $2 million of this amount for construction. To 

obtain the additional funding that it expected to need to complete the 

project’s construction, AOC, in December 2005, requested $20.6 million as 

part of its budget request for fiscal year 2007. This request was based, in 

part, on discussions with us and took into account our November 16, 2005,

estimate of the cost to complete the project’s construction without an 

allowance for risks and uncertainties and funding from existing 

appropriations. Our subsequent work—completed in preparation for the 

Subcommittee’s February 15 CVC hearing— indicated that AOC would 

need about $5 million more, or about $25.6 million in additional funds, to

complete construction without an allowance for risks and uncertainties. 

AOC has indicated that it plans to request this additional $5 million as a 

supplement to its fiscal year 2007 budget for CVC construction. 

In February 2006, AOC contracted with a fire protection engineering firm, 

in part, to help AOC’s Fire Marshal Division inspect, test, and review plans 

for the CVC’s fire protection system. AOC has not yet received the final 

shop drawings for this system, but it preliminarily estimates that these 

contractual support services will cost about $1,150,000. According to AOC, 

Need for Additional 

Funding Has Grown 

 7

Public Law 108-447, enacted on December 8, 2004, provided that up to $10.6 million could 

be transferred from AOC’s Capitol Building appropriation account for the use of the CVC 

project. The use of the amount transferred is subject to the approval of the House and 

Senate Committees on Appropriations. In June 2005, AOC received approval to use about 

$2.8 million of this $10.6 million, leaving a balance of about $7.7 million that can be used in 

the future after a rescission amounting to $84,800. AOC recently received approval to use

more of these funds; we will discuss this in our testimony for the next CVC hearing. 

Page 9 GAO-06-528T 
it may be able to reduce these expected costs and it will be exploring ways 

to do so. On the basis of AOC’s preliminary estimate and belief that the 

expected costs may be reduced, we added $1 million to our $555 million 

estimate of the cost to complete the entire project without an allowance 

for risks and uncertainties, bringing our total estimate to $556 million. We 

did not, however, change our $584 million estimate of the cost to complete 

the entire project with an allowance for risks and uncertainties, since 

contractual support costs for acceptance testing would be covered under 

such an allowance. Nor did we change our $25.6 million estimate of the 

additional CVC construction funds AOC would need because AOC has 

used and plans to use a different appropriation account to pay for this 

contractual support. AOC has used and plans to use its general 

administration account because this contractual support is needed to

accommodate an overall increase in the Fire Marshal Division’s workload, 

including its CVC-related work. AOC plans to use a total of $200,000 in 

fiscal year 2006 general administration appropriations to pay for 

contractual support for the CVC’s acceptance testing and has requested 

another $450,000 in fiscal year 2007 general administration appropriations. 

After AOC has received the final shop drawings for the CVC’s fire 

protection system and has explored ways to reduce the cost of needed

contractor support, it plans to reprioritize its fiscal year 2007 general 

administration budget request to obtain the remainder of the funding 

needed. At this time, AOC expects this amount to be somewhat less than 

$500,000, which would bring the total fiscal year 2007 funding needed for

contractual support for CVC acceptance testing to about $950,000. We plan 

to monitor and report to the Subcommittee on these costs as soon as AOC 

has a firmer estimate. 

Mr. Chairman, this completes our prepared statement. We would be 

pleased to answer any questions that you or Members of the 

Subcommittee may have. 

For further information about this testimony, please contact Bernard 

Ungar at (202) 512-4232 or Terrell Dorn at (202) 512-6923. Other key 

contributors to this testimony include Shirley Abel, John Craig, Maria 

Edelstein, Elizabeth Eisenstadt, Brett Fallavollita, Jeanette Franzel, Jackie 

Hamilton, Bradley James, Scott Riback, and Regina Santucci.

Contacts and 

Acknowledgments 

Page 10 GAO-06-528T 
Page 11 GAO-06-528T 

Appendix I: Capitol Visitor Center: Critical 

Construction Milestones and Stone Installation 

Targets, February 16-March 15, 2006 

Table 1 compares the actual with the scheduled completion dates for 

critical sequence 2 construction milestones scheduled to be completed by

March 15, 2006. Table 2 compares the actual with the targeted pace of wall 

and floor stone installation. The targets for wall stone installation are 

related to the wall stone milestones identified in table 1. The preliminary 

targets for floor stone installation are related to milestones that are 

scheduled to be completed after March 15, 2006.

Table 1: Critical Construction Milestones, February 16-March 15, 2006

Activity Location

Scheduled

completion

Actual 

completion

Wall Stone Area 2 East Front Basement 3/06/06

Wall Stone Area 2 Pedestals Orientation Lobby Upper Level 2/16/06 3/08/06

Wall Stone Area 1 Base Orientation Lobby Upper Level 2/20/06 2/20/06

Wall Stone Area 1 Orientation Lobby Upper Level 3/06/06 3/02/06

Wall Stone Area 3 Base Orientation Lobby Upper Level 3/10/06 2/20/06

Interior CMU Walls East Front Subbasement 2/06/06 2/21/06

Hang VP Drywall Ceiling Congressional Auditorium Lower Level 3/13/06

Wall Stone Area 1 East Front Basement 2/20/06

Install Pipe Sta. 0+00-2+00 Utility Tunnel 3/08/06

Source: AOC’s January 2006 CVC sequence 2 construction schedule for the scheduled completion dates and AOC and its construction

management contractor for the actual completion dates as of March 13, 2006. 

Table 2: Targets for Wall and Floor Stone Installation through March 11, 2006 

Pieces of interior wall stone stone Square feet of interior floor

Week 

starting Target Actual Preliminary target Actual

13 Feb. 2006 1,060 1,054 500 150

20 Feb. 2006 1,280 1,214 500 0

27 Feb. 2006 1,180 1,046 1,200 740

 6 Mar. 2006 1,274 1049 1,400 700

Total 4,794 4,363 3,600 1,590

Source: Sequence 2 contractor for targets and AOC’s construction management contractor for actual amounts installed. According to

the sequence 2 contractor, the targets for floor-stone installation are preliminary and may change. 

(543165) 
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