Tracy Lo Terrell Place th Street NW Washington DC November 4, 2002 Construction Management

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1 Tracy Lo Terrell Place th Street NW Washington DC November 4, 2002 Construction Management Alternate Systems and Methods Analysis Executive Summary Studies on the following subtopics are helpful to understand the building systems and related construction costs. This will generate ideas that are useful for possible thesis topics: Alternative methods, value engineering and schedule compression. Site Layout Planning Site plans for excavation, superstructure and finish phases of the project are included in this section. A list of description explaining the key features of the site layout and detailed explanation of the site layout is put together. Material Management Requirements of supporting installment for two materials from the project are explained in detail. The requirements can be applied to the people working on the site and to the structure. Detailed Structural Systems Estimate A detailed structural estimate is prepared. This includes the foundation system, the quantity of concrete, quantity of steel for columns and beams, roof, equipment cost and others. Spreadsheets with quantity showing and estimate from MC2 are attached. General Conditions Estimate General Conditions estimate is developed from the Staffing plan that previous assignment had put together. This includes bonds and insurance that the general contractor had to pay for and R.S. Means is used for reference. Project Schedule A primavera schedule is prepared in this section. This is a more detailed schedule that is built from the previous assignment. This schedule shows the duration of the structural sequence, MEP rough-in, distribution and finishes. Cash Flow From the primavera schedule, each activity is associated with the cost and cost load schedule is prepared. Cash flow schedules for the owner and the general contractor are created. The S curve (Cumulative payments) is shown on the graph.

2 Site Layout Planning: There are three parts to the building: New West Building, Existing Hecht Company building and Gang of Four with a total of 634,890 square feet. MCI Center F street, NW Tarriff Building Hotel 7th Street, NW Hecht's Building Gang of Four New West Building New Building Not in project Terrell Place 8th Street, NW Firehouse Existing Building Future Residential Existing AARP NRC E Street, NW Housing/Theatre Office Terrell Place - Site Plan Not To Scale Loading Dock: Terrell Place is located in downtown Washington DC and site usage is very limited. There are two loading docks where trucks can unload material. One of the docks face the sidewalk, which has been temporarily closed on F street. Since space is limited, trucks do not have enough space to make U-turns. Trucks coming in from F street have to park parallel to the sidewalk to unload materials. Trucks can enter from the entrance to the existing parking lot next to the New West Building. It is a site for another future project that has yet to start. But again, space is very limited at that area and therefore, the project manager has to coordinate all the delivery schedules. Staging Area/Site Trailer: The general contractor trailer is located on the existing parking lot east of the New West Building. Other subcontractors trailers are located on the second floor of the existing Hecht s Building. Staging area is along F Street. The first floor of the Existing Hecht s Building is used as staging area as well. Parking: Space is very limited. However, there are about 15 parking spaces outside the general contractors trailers. They all line up after each other and it is very difficult to move the cars during the day. The parking spaces are only provided for the staff from the general contractor. Metro Station and Gallery Place are across from the site.

3 Crane: There are two tower cranes on site. Crane #1 is a tower crane with max jib length of and max capacity of 26,455 lbs. It is located on the New West Building. Crane #2 is a tower crane with max jib length of 135 and max capacity of 13,200lbs. It is located at the Gang of Four Building. They are shown on the site plan.. Neighboring Building: Terrell Place is located in downtown Washington DC. It is mainly a commercial district but there are also a few residential apartments in the area. MCI Center, a multi-purpose facility for concerts, family shows and sporting events, is located across from F Street. Other buildings under construction include a residential apartment and NRC- National Research Council, which are located a block away from Terrell Place. The Spy Museum, which opened in August 2002, is only 5 minutes walking from Terrell Place. Traffic, Pedestrian Pattern and Fences: One lane along 7 th street and F Street is closed due to construction. Fences are around the perimeter of the construction and extend to the traffic lane. The sidewalk along F Street is also closed. Temporary sidewalk along 7 th street is extended to the road. There are signs showing pedestrian the new traffic pattern. No temporary sidewalk for pedestrian is provided along 7 th street. Access Road: There is a temporary construction access road within the construction site, but it include only a small parking lot and a loading area for trucks. It is very challenging for trucks to back up within the site. Hoist: One material hoist is located on the east side of the New West Building. The location is convenient because the loading dock is next to it. Temporary Utilities: The general contractor has to coordinate with utility companies for transfer to permanent power. Temporary light and power, heat and ventilation, construction water, and toilets are provided.

4 Standpipes: Standpipes are provided in the enclosure of stairs. Hydrants, Water Line, Utility Location: They are shown on the site plan. Three sites plans were developed to represent the excavation, superstructure, and finish phases of the construction. More explanation on each site plan is described below: Excavation Plan There was a temporary access road for demolition debris removal during excavation phase so that the trucks and other equipments could get to Gang of Four. Trucks could not enter from 7 th street because there was a temporary sidewalk which blocked the entrance from 7th street. Therefore, all the trucks must enter the site from the entrance on F street. A ramp was built from the entrance on F street to the New West Building s basement level so that the trucks could have access to the lower level of the New West Building. Sheeting and shoring were built on the perimeter of the site during the excavation phase. Superstructure Two tower cranes were erected on site after foundation was completed. The cranes were there for erecting structural members and placing other heavy equipment on floors. Since all vehicle traffic had access to the site only from F street, a staging area was set up on F street for easy access. (7 th street was blocked off by temporary sidewalk) Finishes Subcontractor s trailers were inside the first few floors of the Hecht s building. Next to the trailers, they set up a storage area where they stored small equipments and tools. Staging area for material was set up along F Street. A material hoist was set up next to the staging area and it could transport to the material to the appropriate floor levels.

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8 Material Management: Architects, general contractor and the subcontractors pay close attention to all the materials handling processes including fabrication, delivery, storage, and installation in order to achieve the best quality work. On the other hand, a safe environment for workers is also very important. Proper material management is essential for both obtaining the best quality work and providing a safe environment for workers. Under each section of the specifications, it states the requirement for each type of materials. Temporary utilities are stated in section 1510 in the specifications. It stated the general requirement for each utility including light and power, heat and ventilation, and construction water. Adequate temporary lighting and power are required for the building, the site, and the field offices to serve construction trades during the construction. Temporary ventilation is provided for comfort and protection of workers, for proper drying of wet work, and for proper curing of installed materials. Temporary Heat is provided to ensure suitable working conditions and also for storage of products and materials. These elements are tied with material management and in the following paragraphs, two specific materials: Cast-in-place concrete and Applied Fireproofing, are discussed in details. Cast-in-place concrete is used throughout the building. Cast-in-place concrete is used in foundations, machine and other equipment bases, concrete slabs and curbs. The quality of concrete is very crucial to the building and the contractor must provide extra care during the mixing and curing process. During mixing, if it is under hot weather or under conditions that will accelerate the setting of concrete, a shorter mixing time may be required. When air temperature is between 85 to 90 degrees Fahrenheit, the contractor must reduce the mixing and delivery time from 1 ½ hours to 75 minutes. When air temperature is above 97 degrees Fahrenheit, they must reduce the time to 60 minutes. During curing process, the contractor needs to protect the working area from premature drying, temperature extremes, rain and flowing water. They are required to cure continuously without allowing the concrete to dry: this will prevent hydration of cement and hardening of concrete. They also need to maintain the curing temperature; which is above 50 degrees Fahrenheit. Therefore, in cold weather, they will need to provide temporary heat to maintain the required temperature. In addition, when air temperature is below 40 degrees Fahrenheit or above 80 degrees Fahrenheit, the concrete needs to be tested hourly and a set of compression specimens is made each time. Applied Fireproofing is required to be handled with care, as described in the manufacturer s instructions. Before applying the fireproofing, the material must be stored in dry area without any damages. Materials must be used prior to the expiration date. Specific environmental requirements are to maintain an air and substrate temperature of 40 degrees Fahrenheit for 24 hours before, during, and for 24 hours after application; provide temporary enclosures and heat as required. For proper curing and thorough drying of fire resistive materials, the general contractor has to ensure natural ventilation is adequate. If it is inadequate, the general contractor must provide forced air circulation. There is no specific requirement on temporary electrical and power for both cast-in-place concrete and applied fireproofing. Therefore, requirements for those are simply followed as described in the temporary utilities sections provided by the contractor.

9 Detailed Structural Systems Estimate: Since there are three sections to the building, the structural takeoff is broken down by the following sections: New West Building (West), Existing Hecht Company building (Hecht), and Gang of Four building (Gang of Four). The New West Building is a cast-in-place, 11- story with mechanical penthouse, 1 occupied below grade level and 3 levels or below grade parking. The Existing Hecht Company building consists of the existing structure and historic façade and it is an 8 story building. New floor slabs and steel are added to the existing structure. The Gang of Four is a cast-in-place, 8 story with 1 below grade level. The structural estimate includes the following: Foundation Systems Slab on Grade Concrete Beams and Columns Elevated Slab Steel Beams and Columns The foundation system contains spread footings and wall footings. Plywood framing was used to form the work. First the general contractor dug the footing and wraps the footing in plywood, then rebar was set and inspected. Concrete was poured after the form work was ready. For vertical wall, the general contractor used the PERI wall forming system which large wall panels that were units designed for wall construction. Some advantages of using the PERI wall forming systems: BFD Alignment Coupler - Just 1 component for all connections - the BFD Alignment Coupler Few panel widths - PERI TRIO requires only 6 widths. Practical 300 mm increments in panel size and the 720 mm wide TRIO panel reduce stocks and increase utilization.

10 The large panel - The large panel with 2 heights and 2 widths Easy to clean - ECC powder coating and closed panel sections makes cleaning easier Reference: PERI: On columns, 2x4s and plywood with clamps were used to form the work. For shear walls, since there was a shortage on the PERI, prefabricated formwork system; plywood and stick framing were used to form the walls. For elevated slabs, scaffolding with ALUMNA beams with plywood on top was used. This method was selected because the number of drop heads around the columns and down-turned beams at the slab edge. The general contractor preferred to use the prefabricated formwork system if permitted. The next page is a summary of the structural system estimate. Estimate from MC2 include material, labor and equipments. The breakdown cost from MC2 and the quantity takeoff sheets are attached on the back of this report.

11 GANG OF FOUR WEST HECHTS Foundation Foundation Decks, Slabs and toppings Slab on grade $34,230 Column Footings $176,346 C1 $27,958 Column footings $33,326 Stepped Footing $10,121 LEVEL 1 $27,958 Grade Beams $15,877 TOTAL $186,467 LEVEL 2 $27,958 Slab on Grade $35,405 LEVEL 3 $26,909 TOTAL $118,838 Drop Panels LEVEL 4 $26,909 C3 $7,896 LEVEL 5 $26,909 Drop Panels C2 $5,246 LEVEL 6 $26,909 C1 $3,895 C1 $6,014 LEVEL 7 $26,909 LEVEL 1 $149 LEVEL 1 $5,546 LEVEL 8 $34,444 LEVEL 2 $5,162 LEVEL 2 $11,510 Roof $15,856 LEVEL 3 $3,468 LEVEL 3 $9,377 Elevator Machine Room $5,333 LEVEL 3 UPPER $3,409 LEVEL 4 $9,377 TOTAL $274,052 LEVEL 4 $2,768 LEVEL 5 $9,377 LEVEL 5 $3,813 LEVEL 6, 7, 8 $27,975 Concrete Beams LEVEL 6 $2,954 LEVEL 9 $9,377 LEVEL 1 $4,934 Penthouse $671 LEVEL 10 $9,377 LEVEL 2 $467 TOTAL $26,289 LEVEL 11 $9,377 LEVEL 3 $1,104 Roof $9,377 LEVEL 4 $1,104 Decks, Slabs and toppings Penthouse $12,873 LEVEL 5 $1,104 C1 $28,243 TOTAL $142,699 LEVEL 6 $1,104 LEVEL 1 $33,033 LEVEL 7 $1,104 LEVEL 2 $20,646 Decks, Slabs and toppings LEVEL 8 $806 LEVEL 3 $20,646 C3 $45,393 TOTAL $11,727 LEVEL 3 UPPER $20,646 C2 $39,887 LEVEL 4 $20,646 C1 $39,887 Steel Beams with Fireproofing LEVEL 5 $20,646 LEVEL 1 $36,295 C1 $1,816 LEVEL 6 $16,186 LEVEL 2 $39,722 LEVEL 1 $116,247 LEVEL 7 $16,186 LEVEL 3 $39,722 LEVEL 2 $72,958 LEVEL 8 $15,856 LEVEL 4 $39,722 LEVEL 3 $65,326 Penthouse $4,514 LEVEL 5 $39,722 LEVEL 4 $72,559 Roof $18,856 LEVEL 6 $39,722 LEVEL 5 $59,844 TOTAL $236,104 LEVEL 7 $39,722 LEVEL 6 $65,085 LEVEL 8 $39,722 LEVEL 7 $64,850 Concrete Columns LEVEL 9 $39,722 LEVEL 8 $100,117 C2 $19,242 LEVEL 10 $39,722 LEVEL 9 $110,435 C1 $20,114 LEVEL 11 $39,722 Roof $125,744 LEVEL 1 $17,961 Roof $46,872 Elevator Machine Roof $466,576 LEVEL 2 $16,363 Penthouse $18,581 TOTAL $1,321,557 LEVEL 3 $15,340 Elevator Machine Room $14,005 LEVEL 3 UPPER $19,242 TOTAL $638,140 TOTAL STRUCTURAL COST FOR HECHTS $1,607,336 LEVEL 4 $17,137 LEVEL 5 $14,144 Concrete Beams LEVEL 6 $11,183 C2 $532 LEVEL 7 $13,411 C1 $4,397 LEVEL 8 $10,488 LEVEL 1 $8,489 Roof $1,333 LEVEL 2 $2,655 Elevator Machine Room $2,940 LEVEL 3 $2,272 TOTAL $178,898 LEVEL 4 $2,450 LEVEL 5 $2,822 TOTAL STRUCTURAL COST FOR GANG OF FOUR $560,129 LEVEL 6 $2,863 LEVEL 7 $2,863 LEVEL 8 $2,863 LEVEL 9 $2,863 LEVEL 10 $2,905 LEVEL 11 $2,863 Elevator Machine Room $4,679 TOTAL $45,516 Steel Members with fireproofing LEVEL 3 $2,506 LEVEL 4 $2,506 LEVEL 5 $2,506 LEVEL 6 $2,506 LEVEL 7 $2,506 LEVEL 8 $2,506 LEVEL 9 $2,506 LEVEL 10 $2,506 LEVEL 11 $2,506 Roof $10,620 Elevator Machine Room $22,495 TOTAL $55,669 Concrete Columns C4 $39,182 C3 $32,917 C2 $36,087 C1 $35,015 LEVEL 1 $27,014 LEVEL 2 $28,493 LEVEL 3 $19,687 LEVEL 4 $28,493 LEVEL 6 $28,493 LEVEL 7 $28,493 LEVEL 9 $28,715 LEVEL 10 $26,289 LEVEL 11 $24,665 Elevator Machine Room $2,068 Roof $15,456 TOTAL $401,067 TOTAL STRUCTURAL COST OF TERRELL PLACE $ 3,637,023 TOTAL STRUCTURAL COST OF WEST $1,469,558

12 General Conditions Estimate: General Conditions include field activities overhead and home office costs.* The duration of the project is 25 months and all the items are generated by unit price multiplying the number of units. An attached staffing plan shows how the general contractor staffs the project. Items include in the general conditions are: Personnel Office supplies and expenses Office and facilities expenses Safety and security Project transportation Temporary protection Temporary utilities Clean up and check out cost Equipment Quality control cost Permit and Insurance Payment and performance Bond are not included for this project because the general contractor is not providing a bond to the owner due to the existing relationship between the owner and the general contractor. A detail breakdown on each cost is included on the following spreadsheet. Different sources: D4, R. S. Means 2002 and AE 472 were used to use for estimating the general conditions. *note: This estimate does not include home office overhead.

13 DETAILED GENERAL CONDITIONS ESTIMATE 0100 PERSONNEL UNITS QTY U/P TOTAL Senior Superintendent wk 100 2, ,000 Finishes Superintendent wk 32 1,800 57,600 MEP Coordinator wk 8 1,450 11,600 Façade Engineer wk 8 1,450 11,600 Asst. Superintendent wk 44 1,600 70,400 Project Manager wk 92 2, ,000 Project Engineer wk 100 1, ,000 Field Engineer wk 52 1,500 78,000 Office Engineer wk ,000 Summer Intern wk ,400 Secretary wk ,400 Project Executive wk 50 3, ,000 Cost Engineer wk 50 1,500 75, PERSONNEL 1,273, OFFICE SUPPLIES & EXPENSES UNITS QTY U/P TOTAL Office and Eng. Supplies mo ,000 Copy Machine ea Blueprints set ,500 Photos set ,900 Drinking Water and Ice mo Radios proj Postage mo Cell phone mo , OFFICE SUPPLIES & EXPENSES 19, OFFICE & FACILITIES EXPENSES UNITS QTY U/P TOTAL Trailer Rent mo ,000 Trailer Set Up & Dismantle proj Office Maintenance/Janitorial mo ,500 Sanitary Facilities mo ,125 Project Signs ea OFFICE & FACILITIES EXPENSES 21, SAFETY AND SECURITY UNITS QTY U/P TOTAL Safety Supplies and Expense proj 1 2, ,000 Fire Extinguishers ea SAFETY AND SECURITY 2, PROJECT TRANSPORTATION/TRAVEL UNITS QTY U/P TOTAL Pickup Trucks mo , PROJECT TRANSPORTATION/TRAVEL 47, TEMPORARY PROTECTION UNITS QTY U/P TOTAL Temporary Ladders ea Temporary Fence LF ,878 Temporary Sidewalk LF , TEMPORARY PROTECTION 16, TEMPORARY UTILITIES UNITS QTY U/P TOTAL Temporary Power Installation & Distribution pro Temporary Water Consumption mo ,575 Temporary Power Consumption mo ,000 Temporary Heat mo ,000 Telephone mo ,250 Sewer and Water Fees proj 1 1,500 1, TEMPORARY UTILITIES 16, CLEAN UP AND CHECK OUT UNITS QTY U/P TOTAL Final Clean Up sq ft 1 57, ,720 Dumpsters mo , CLEAN UP AND CHECK OUT 67, EQUIPMENT UNITS QTY U/P TOTAL Small Tools and Supplies mo , EQUIPMENT 18, QUALITY CONTROL UNITS QTY U/P TOTAL Quality Control proj 1 8, QUALITY CONTROL 8, PERMITS AND INSURANCE UNITS QTY U/P TOTAL Building Permits proj 1 1% 500,000 Street & Side permit proj 1 5,000 Builder's Risk Insurance proj % 295, PERMITS AND INSURANCE 800,000 TOTAL GENERAL CONDITIONS 2,289,776 1

14 Project Schedule: A construction schedule is used for several reasons. One of the reasons is to keep track of how much work is done. Another reason is to show the relationship between each contractor; how they will work together in a limited space. Monthly update of the schedule is usually done. A detailed construction schedule is developed by P3. It is mainly broken down into three sections of the building. The schedule includes the major milestone dates: construction start date, Crane Erect date, Tenant work start date, and others. It also breaks down the structural systems by floor, MEP rough-in, distribution and finishes.

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16 Cash Flow: A cash forecast is a schedule that summarizes the estimated cash receipts, estimated disbursements, and available cash balances for some period into the future. Owner uses the chart to predict how much they are paying each month and the general contractor uses the chart to predict how much they are paying the subcontractors each month. The difference between the Owner s cash flow and the general contractor s cash flow is the owner usually keeps a percentage of the bill as retainage. According to the contract, the owner pays a month after the general contractor sends him the bill. Usually there is a retainage and retainage will be pay off when the construction is completed. In that month before the owner pays the general contractor, the general contractor needs to pay interest. Some general contractors borrow loans from bank and pay interest of it. *note: Information about retainage on Terrell place is 10% of the project cost. Reference: Construction Contracting by Richard H. Clough and Glenn A. Sears

17 Terrell Place Cash Flow Schedule Start End Schedule ofpercent Name Date Date Values Total Aug-01 Sep-01 Oct-01 Nov-01 Dec-01 Jan-02 Feb-02 Mar-02 Apr-02 May-02 Jun-02 Jul-02 Aug-02 Sep-02 Oct-02 Nov-02 Dec-02 Jan-03 Feb-03 Mar-03 Apr-03 May-03 Jun-03 Jul-03 Aug-03 Sep-03 3-Oct General Conditions 8/21/2002 9/30/2003 $2,349, $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 $93,990 Mobilization 8/21/2002 9/15/2003 $450, $225,000 $225,000 Demolition 9/15/2003 1/15/2003 $750, $93,750 $187,500 $187,500 $187,500 $93,750 Historic Restoration 10/1/2002 4/30/2003 $4,500, $642,857 $642,857 $642,857 $642,857 $642,857 $642,857 $642,857 Sitework 9/4/2001 2/28/2002 $3,000, $500,000 $500,000 $500,000 $500,000 $500,000 $500,000 Foundation Excavation 2/13/2002 2/28/2003 $1,125, $1,125,000 Foundation Concrete 3/4/2002 5/6/2002 $2,500, $833,333 $833,333 $833,333 Concrete Structure 5/1/2002 3/5/2003 $1,950, $195,000 $195,000 $195,000 $195,000 $195,000 $195,000 $195,000 $195,000 $195,000 $195,000 Concrete Floors 5/1/2002 3/5/2003 $1,100, $110,000 $110,000 $110,000 $110,000 $110,000 $110,000 $110,000 $110,000 $110,000 $110,000 Precast Panels 1/2/2003 5/5/2003 $3,650, $912,500 $912,500 $912,500 $912,500 HVAC Rough-in 4/14/2002 4/2/2003 $4,500, $195,652 $391,304 $391,304 $391,304 $391,304 $391,304 $391,304 $391,304 $391,304 $391,304 $391,304 $391,304 Fire Protection 7/29/2002 4/2/2003 $3,500, $437,500 $437,500 $437,500 $437,500 $437,500 $437,500 $437,500 $437,500 Plumbing Rough-in 7/29/2002 4/2/2003 $2,550, $318,750 $318,750 $318,750 $318,750 $318,750 $318,750 $318,750 $318,750 Partitions 3/5/2003 8/1/2003 $110, $22,000 $22,000 $22,000 $22,000 $22,000 Electrical 4/14/2002 7/15/2003 $3,500, $116,667 $233,333 $233,333 $233,333 $233,333 $233,333 $233,333 $233,333 $233,333 $233,333 $233,333 $233,333 $233,333 $233,333 $233,333 $116,667 Ceiling Grid 4/7/2003 5/16/2003 $600, $400,000 $200,000 HVAC Finishes 4/2/2003 7/15/2003 $2,917, $833,649 $833,649 $833,649 $416,825 Fixtures 3/4/2003 8/15/2003 $5,046, $917,596 $917,596 $917,596 $917,596 $917,596 $458,798 Painting 5/16/2003 9/10/2003 $500, $62,500 $125,000 $125,000 $125,000 $62,500 Carpet 2/14/2003 4/14/2003 $968, $242,000 $484,000 $242,000 Furnishing 3/14/2003 5/14/2003 $1,000, $250,000 $500,000 $250,000 Commissioning 5/30/2003 9/30/2003 $40, $10,000 $10,000 $10,000 $10,000 Total $46,607, Monthly Total $318,990 $912,740 $1,424,347 $1,424,347 $1,424,347 $1,330,597 $2,361,847 $1,570,181 $1,882,499 $1,856,961 $1,023,628 $1,023,628 $1,779,878 $1,779,878 $1,779,878 $1,779,878 $1,779,878 $2,692,378 $2,934,378 $4,060,973 $4,155,068 $2,613,068 $2,235,568 $1,702,077 $687,788 $166,490 Cum. Total $318,990 $1,231,730 $2,656,077 $4,080,424 $5,504,772 $6,835,369 $9,197,216 $10,767,397 $12,649,896 $14,506,857 $15,530,485 $16,554,112 $18,333,990 $20,113,868 $21,893,746 $23,673,623 $25,453,501 $28,145,879 $31,080,256 $35,141,230 $39,296,298 $41,909,367 $44,144,935 $45,847,012 $46,534,800 $46,701,290 Retainage $31,899 $91,274 $142,435 $142,435 $142,435 $133,060 $236,185 $157,018 $188,250 $185,696 $102,363 $102,363 $177,988 $177,988 $177,988 $177,988 $177,988 $269,238 $293,438 $406,097 $415,507 $261,307 $223,557 $170,208 $68,779 $16, % Retainage Payment Request $318,990 $912,740 $1,424,347 $1,424,347 $1,424,347 $1,330,597 $2,361,847 $1,570,181 $1,882,499 $1,856,961 $1,023,628 $1,023,628 $1,779,878 $1,779,878 $1,779,878 $1,779,878 $1,779,878 $2,692,378 $2,934,378 $4,060,973 $4,155,068 $2,613,068 $2,235,568 $1,702,077 $687,788 $166,490 $0 Payment Received $0 $287,091 $821,466 $1,281,912 $1,281,912 $1,281,912 $1,197,537 $2,125,662 $1,413,162 $1,694,249 $1,671,265 $921,265 $921,265 $1,601,890 $1,601,890 $1,601,890 $1,601,890 $1,601,890 $2,423,140 $2,640,940 $3,654,876 $3,739,562 $2,351,762 $2,012,012 $1,531,869 $619,009 $4,819,970 Cumulative Received $0 $287,091 $1,108,557 $2,390,470 $3,672,382 $4,954,294 $6,151,832 $8,277,494 $9,690,657 $11,384,906 $13,056,171 $13,977,436 $14,898,701 $16,500,591 $18,102,481 $19,704,371 $21,306,261 $22,908,151 $25,331,291 $27,972,231 $31,627,107 $35,366,668 $37,718,430 $39,730,442 $41,262,311 $41,881,320 $46,701,290 Contractor's Payment $50,000 $45,000 $40,000 $35,000 Payment in Thousands $30,000 $25,000 $20,000 $15,000 $10,000 $5,000 $ Months 1