Board of Trustees

MEETING NOTICE Village of Scarsdale A Work Session of the Scarsdale Village Board of Trustees is scheduled for Tuesday, December 8, 2020 at 5:00 PM. The meeting will be held via Zoom video conferencing service. Members of the public wishing to participate in the meeting can do so via online link at https://zoom.us/j/93183703358, or call into the meeting using 1-929-436-2866 and entering the Meeting ID 931 8370 3358. Agenda 1. Freightway Parking Garage - Life Cycle Repairs and Future Planning of Freightway Site CS: 12-2-20 E-MAIL: Journal News (Lohud) Scarsdale 10583 Scarsdale Hamlet Hub Scarsdale Inquirer The Daily Scarsdale cc: Lobby Bulletin Board UPDATED CONDITION SURVEY REPORT of the FREIGHTWAY PARKING GARAGE Scarsdale, New York Prepared For: Village of Scarsdale Scarsdale, NY 10583 Submitted by DESMAN DBA Desman, Inc. 3 West 35th Street New York, NY 10001 NOVEMBER 2020  UPDATED CONDITION SURVEY REPORT of the FREIGHTWAY PARKING GARAGE Scarsdale, NY Contents 1. INTRODUCTION ................................................................................................................. 1 A. Authorization .................................................................................................................. 1 B. Scope of Services............................................................................................................. 1 C. Objective ......................................................................................................................... 1 D. Parking Garage Repair and Restoration - An Overview ........................................... 2 2. SUMMARY, CONCLUSION and RECOMMENDATIONS ........................................... 4 3. FINDINGS AND RECOMMENDATIONS ...................................................................... 11 4. BUDGET COST ESTIMATE ................................................................................................ 16 1. INTRODUCTION A. Authorization Desman was retained by the Village of Scarsdale to provide consulting engineering services to perform a condition assessment of the Freightway Parking Garage. The updated visual condition survey was performed October 2020. B. Scope of Services The basic scope of services is outlined in detail in Desman’s proposal. In summary, the services primarily consist of the following: • Review existing documentation including design drawings and any previous reports. • Visual inspection of the parking garage. • Review the effectiveness of any previous repairs. • Limited delamination (chain drag) survey of the structurally supported floor slabs. • Preparation of a report and cost estimate documenting the results of our investigation along with recommendations for immediate and future action. C. Objective It is the intent of this condition evaluation and assessment to: (1) document the current condition and estimate the extent of deterioration of various components of the parking garage, (2) determine the causes and estimate the extent of the deterioration, to the extent possible through our visual observations; (3) develop recommended programs of repair, and (4) estimate the probable construction costs of the repairs. Normally, during the evaluation, an assumption is made that the structure was designed and constructed adequately. This condition survey was visual and non-destructive; extensive testing is beyond the scope of this investigation. Therefore, in the development of repair programs within this report, contingency funds must be anticipated and included in any budget for repairs to account for concealed, unknown, underestimated or unanticipated conditions, which may be encountered. Updated Condition Survey Report Freightway Parking Garage, Scarsdale NY Page 1 D. Parking Garage Repair and Restoration - An Overview Concrete is a stone-like material obtained by permitting a carefully proportioned mixture of cement, sand and gravel, or other aggregate, combined with water, to harden in forms of the shape and dimensions of the desired structure. The advantages of this building material include its high fire and weather resistance, local availability, low cost and high compressive strength. On the other hand, it is a relatively brittle material whose tensile strength is low compared to its strength in compression. This limitation is overcome by using reinforcing steel in combination with concrete to reinforce it where its low tensile strength would normally limit the carrying capacity of the member. With the widespread use of salt deicing programs for our nation’s highways, the condition of our bridge decks, parking garages and other reinforced concrete structures directly exposed to these conditions began to change. The relationship between the deterioration and the use of deicing salts was most evident by the extent of deterioration found in the “snow belt” states. With the development of this deterioration, programs were initiated to study the cause and effect of the problem in order that repair procedures and preventive maintenance could be instituted. Research during this period confirmed that the corrosion of the embedded reinforcing steel was the primary cause of the structural deterioration. It was further determined that the presence of chloride in the concrete (from both external and internal sources) greatly accelerated the development of the corrosion process. External sources of chlorides are, essentially, deicing salt applications. Internal sources consist of calcium chloride admixtures to the concrete used in winter months to speed up the temperature sensitive curing of the concrete mix. Repair programs began to consider that the only method to stop all subsequent corrosion was one where all concrete containing threshold values of chlorides to cause corrosion was removed and chlorides were further prevented from entering the new concrete. However, removal of all concrete containing significant levels of chlorides is seldom a practical solution. Updated Condition Survey Report Freightway Parking Garage, Scarsdale NY Page 2  The service environment of parking structures is more severe than most other buildings and is more nearly like that of highway bridges. In many cases, these structures are exposed to seasonal and daily ambient temperature variations. Deicing salts may be spread directly on the slab floors or may be deposited from wheel wells of vehicles. Extreme temperature and volume changes can cause cracking of the floors, beams, columns, and walls that can lead to the ingress of water and chlorides, leading eventually to deterioration. To the greatest extent possible, a field visual inspection, selective field testing, laboratory tests and review of existing documents are used to gain as much information about the structure as possible. Normally, an assumption during the evaluation of the condition is that the structure was designed and constructed adequately. Due to budget constraints and the on-going operations of the facility, extensive destructive testing regarding confirmation of existing conditions is beyond the scope of this investigation. As stated by the ACI (American Concrete Institute) committee 362 State of the Art Report on Parking Structures issued in 1985, “Repairing an existing deteriorated structure involves many unknowns, uncertainties and risks. Especially with regard to repair of deicer caused corrosion damage, the process is considered an extension of the useful life of the deteriorated structure. It is not equivalent to building a new structure with current technology.” It is our experience that even if all delaminated concrete is removed, the concrete that appears to be sound but is contaminated will continue to delaminate even if the further ingress of moisture and salt are eliminated by the use of a waterproofing membrane. Generally, delamination is between ½% and 2% of the contaminated area. Further, in the development of repair programs within this report, contingency funds must be anticipated and included in any budget for repairs to account for concealed, unknown, or unanticipated conditions that may be encountered. Updated Condition Survey Report Freightway Parking Garage, Scarsdale NY Page 3 2. SUMMARY, CONCLUSION and RECOMMENDATIONS In order to prepare this report, a limited delamination survey and visual observations were made of the parking garage. Following is a description of each element along with a summary of findings and recommendations for repair. The Freightway Parking Garage is located off Garth Road in Scarsdale, New York and is bounded on the north by Freightway Road and the Metro North Railroad to the East. There is a small adjacent parking lot to the South. The parking garage services commuters at the Metro-North Scarsdale Train Station. The parking structure has four supported levels, and is approximately 233 feet by 125 feet. The parking structure is a structural steel frame with a corrugated metal deck and cast-in-place concrete. There are two stair towers providing pedestrian access to the garage. One is located in the North-East corner, and the other in the South-West corner. There are two main entrances and exits to the garage. One on the West side leads to Garth Road, and two on the North side lead to Freightway Road. There is also an entrance and exit on the South side that leads to an adjacent parking lot. A two-way ramp provides access between the levels (see photo 2.1). Photo 2.1 Updated Condition Survey Report Freightway Parking Garage, Scarsdale NY Page 4 Based on our survey, we observed the Freightway Parking Garage to be in fair to poor physical condition. There were cracks on the structural slab and traffic membrane observed throughout the parking garage. The cracks and the failed caulk joints have permitted seepage of moisture into the concrete slab initiating corrosion of the embedded reinforcement and metal deck soffit, resulting in deterioration of the supported concrete floors. Several areas of the metal decking were observed to be corroded and deteriorated at all supported levels. In addition, floor areas at all parking levels were found to be spalled/delaminated, requiring partial depth or full depth replacement. Most of the observed deterioration at the original slab appears to be a direct result of water infiltration. The water infiltration combined with road salts (chlorides), causes corrosion of embedded structural elements, resulting in the deterioration of the structure. If these problems are not addressed, the continued seepage of salt laden moisture will only accelerate the corrosion of the structural elements of the garage, which will result in serious structural problems in the future. Our observations conclude that the parking structure requires the implementation of a comprehensive repair and preventive maintenance program in order to ensure its structural integrity and to extend its useful life. The delamination survey showed that several areas of the deck have delaminated. Additionally, sections of the traffic bearing membrane have deteriorated. These delaminations along with a presence of water and chlorides in the garage, typically indicates that a significant amount of structural slab deterioration exists (see photos 2.2 and 2.3). Photo 2.2 Photo 2.3 Updated Condition Survey Report Freightway Parking Garage, Scarsdale NY Page 5 The visual observations of the soffits particularly at the upper floor levels showed corrosion of the corrugated metal deck. Some areas of the metal deck have completely corroded, and other areas of the metal deck show signs of corrosion (see photos 2.4 and 2.5). (Metal decks typically corrode from the inside out.) Photo 2.4 Photo 2.5 Generally, the structural steel members and connections were found to be in fair condition. Corrosion of steel beams and girders have occurred at some locations due to seepage of moisture through cracks in the concrete slab and construction joints (See photos 2.6 and 2.7). Photo 2.6 Photo 2.7 Updated Condition Survey Report Freightway Parking Garage, Scarsdale NY Page 6 The garage drains were observed to be in good condition, however multiple drains appeared to be clogged and should be cleaned on a regular basis. (see photo 2.8). Photo 2.8 Asphalt repairs are required at the on grade parking area adjacent to the third floor parking level. Areas of asphalt have settled, cracked and deteriorated over the years (see photos 2.9 and 2.10). We recommend that the sub-grade be properly compacted at any depressed areas before installing new asphalt and returning the pavement to its original level. Photo 2.9 Photo 2.10 Updated Condition Survey Report Freightway Parking Garage, Scarsdale NY Page 7 The two stair towers were observed to be in fair condition with some concrete spalling, minor spalled bricks and minor rusting at the steel members (see photo 2.11, 2.12 and 2.13). Photo 2.11 Photo 2.12 Photo 2.13 Updated Condition Survey Report Freightway Parking Garage, Scarsdale NY Page 8 The top of the supported concrete slabs contained a traffic bearing membrane. During our inspection many areas of the membrane were worn-out while other areas of the membrane have de-bonded from the structural slab (see photos 2.14, and 2.15). The warn and damaged membrane areas and other areas that would be affected by any concrete floor repairs should be patch repaired and the entire membrane should be recoated to extend the system useful life. Any applied waterproofing measures should be periodically inspected and as conditions warrant repairs should be implemented to maintain the system effectiveness. These waterproofing measures should be maintained for the life of the facility to avoid future moisture infiltration and chloride penetration to the level of the reinforcing. Maintaining a watertight facility is especially important because it will protect the concrete structure from deterioration and will thus extend its useful life. Allowing water latent with chlorides to penetrate all the way through the slabs may lead of structural issues due to corrosion induced deterioration of the concrete structure or steel framing. Photo 2.14 Photo 2.15 Other areas requiring repairs include: exterior concrete stairs, exterior retaining walls and metal spandrels at the roof level (See Photos 2.16, 2.17 and 2.18). Updated Condition Survey Report Freightway Parking Garage, Scarsdale NY Page 9  Photo 2.16 Photo 2.17 Photo 2.18 Based on our condition survey, the cost of the repairs is approximately $8,352,607.00 over the next 25 years. It should be understood that the maximum benefit would be obtained at the least cost if the repairs are performed in one phase and under one contract. A phased approach would result in additional costs due to splitting up into several smaller contracts, increase in costs due to inflation and lastly due to increase in required work because of on-going deterioration. We estimate an additional cost of 10% to 15% for phased repairs (not included in our estimates). Updated Condition Survey Report Freightway Parking Garage, Scarsdale NY Page 10 3. FINDINGS AND RECOMMENDATIONS Desman was retained to perform an assessment of the Freightway Parking Garage, located in Scarsdale, New York. The conclusions, recommendations and opinions of costs represented in this report area based on discussions with personnel familiar with the property, our field observations and our experience with similar projects. It is not the intent of this survey to perform an exhaustive study to locate every existing defect in the structure. A team of trained professionals made “walk-through” observations but there may be defects at the facility that were not readily accessible, not visible or that were inadvertently overlooked. Based on our field condition survey, we have developed a comprehensive repair and preventive maintenance program. This program addresses the present deterioration conditions as well as the preventive maintenance measures for the long-term durability of the structure. Due to the preliminary nature of this study, the estimate is presented for budget purposes only. The estimate is based on our experience with similar parking garage rehabilitation projects and prices in the Westchester, New York area. A detailed cost estimate is provided in section 4 of this report. If required, the repairs can be phased over a period of time. However, the maximum advantage would be obtained at the least cost and inconvenience, if the repairs are performed in one phase and under one contract. A phased approach would result in additional costs due to splitting up the work into several smaller contracts, increase in costs due to inflation and lastly due to increase in required work because of the on-going deterioration. Generally, parking structures require periodic maintenance and repairs to keep them in working order and prevent serious structural deterioration. In an effort to develop a repair and maintenance program, it is helpful to assess the current condition of the structure. Updated Condition Survey Report Freightway Parking Garage, Scarsdale NY Page 11 Following is an itemized budget cost estimate and associated description of the work items for the recommended repairs at the Freightway Parking Garage: 1. Structural Work: a. Partial depth concrete repairs: This item consists of the partial depth removal of delaminated/deteriorated concrete from the topside of the supported floor slabs. The slabs shall be repaired back to their original elevations using high quality concrete or an approved trowel applied repair material which is compatible with the existing concrete. Any existing corroded reinforcing shall be cleaned and supplemented with new epoxy coated reinforcing as required. The construction joint around each repair will also be tooled and sealed with an approved two-part polyurethane sealant. b. Full depth concrete repairs: This item consists of full depth removal and replacement of delaminated/deteriorated concrete from the supported floor slabs. The slabs shall be rebuilt back to their original elevations using high quality 5000 psi concrete. Any existing corroded reinforcing shall be cleaned and supplemented with new epoxy coated reinforcing as required. The construction joint around each repair will also be tooled and sealed with an approved two-part polyurethane sealant. c. Metal Deck Repairs: This item consists in the removal of all deteriorated metal decking and replacing it with a reinforced flat slab. d. Asphalt repairs: Remove and replace any areas of deteriorated asphalt system at the parking areas. Water ponding and depressed areas should also be addressed. e. Steel Repairs: Plates shall be welded to steel web or flange where beam has lost over 20% of its cross- sectional area. Corroded beam and columns shall be sand blasted, primed and painted with a rust inhibitive paint. Updated Condition Survey Report Freightway Parking Garage, Scarsdale NY Page 12  f. Masonry Repairs: This item consists of the removal of any spalled, cracked or bulging brick and replacing it with new to match existing. g. Interior Stairs repairs: This item consists in repairing any spalled concrete and scraping, priming and painting rusted the steel members. 2. Waterproofing Work: a. Rout and Seal Cracks: All floor cracks greater than 1/16" wide are to be routed and sealed with a two-part polyurethane sealant. b. Sealant replacement: This item consists of removing the existing deteriorated and failed caulking, then installing closed cell backer rod and an approved two-part polyurethane joint sealant. c. Waterproofing Membrane Patch Repairs: In order to minimize further ingress of moisture and reduce further concrete deterioration, the application of a traffic bearing waterproofing membrane system is recommended at the areas of deteriorated membrane. d. New Top-coat at all Supported Levels: This item consists of shot blasting clean the slab surfaces and install a new elastomeric topcoat waterproofing membrane system. 3. Drainage: a. Drainage Repairs and Upgrading: Repair and/or replace any deteriorated existing drains and piping and install new drains and associated piping. Water ponding areas shall also be evaluated. Updated Condition Survey Report Freightway Parking Garage, Scarsdale NY Page 13  4. Guards: a. New Interior Guard Rail: This item consists of installing a new interior guard railing at the ramp openings. 5. Paint: a. Cleaning and Painting of Steel Beams and Columns: Scrape, prime and paint steel beams and columns. b. Restripe Garage: Providing new signage and striping for the garage. 6. Exterior: a. Concrete Stairs Repairs: This item consists in repairing all spalled concrete steps by restoring them to their original dimensions. b. Retaining Wall Repairs: This item consists of removing any spalled concrete and grouting out any cracks and repairing it back to its original dimensions. c. Metal Facades Panels: Repair and/or replace loose and damage panels at the exterior facades particularly at the roof level. d. Façade Upgrades: Replace and upgrade the existing exterior garage façade panels. 7. Miscellaneous Items: a. New LED Lighting: Replace and upgrade the existing lighting system with new LED lighting. Updated Condition Survey Report Freightway Parking Garage, Scarsdale NY Page 14  b. Miscellaneous work: Any miscellaneous items such as miscellaneous steel repairs/additions, installation and removal of temporary partitions/barricades separating work areas from public areas of the garage, etc. Updated Condition Survey Report Freightway Parking Garage, Scarsdale NY Page 15  4. BUDGET COST ESTIMATE 10-20122.00-2 Freightway Garage Printed: Repairs and Preventive Maintenance Engineer's Estimated Construction Cost - November 2020 Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8 Year 9 Year 10 Year 1 to 10 Year 11 Year 12 Year 13 Year 14 Year 15 Year 16 Year 17 Year 18 Year 19 Year 20 Year 11 to 20 Year 21 Year 22 Year 23 Year 24 Year 25 Year 21 to 25 Item No. Description 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 TOTAL 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 TOTAL 2041 2042 2043 2044 2045 TOTAL 1. Structural Work a. Partial Depth Slab Repairs $ 70,000 $ 70,000 $ 35,700 $ 175,700 $ 82,016 $ 83,656 $ 1,268 $ 166,941 $ 47,105 $ 47,105 b. Full Depth Slab Repairs $ 320,000 $ 320,000 $ 160,000 $ 800,000 $ 374,931 $ 382,430 $ 195,039 $ 2,536 $ 954,936 $ - c. Metal Deck Repairs $ 37,500 $ 37,500 $ 8,160 $ 83,160 $ 43,937 $ 44,816 $ 88,753 $ 10,767 $ 10,767 d. Asphalt Pavement Repairs $ 84,000 $ 84,000 $ 102,396 $ 102,396 $ - e. Steel Repairs $ 10,000 $ 10,000 $ 5,100 $ 25,100 $ 11,717 $ 11,951 $ 23,668 $ 6,729 $ 6,729 f. Masonry Repair $ 6,000 $ 6,000 $ 2,550 $ 14,550 $ 7,030 $ 7,171 $ 14,201 $ 3,365 $ 3,365 g. Interior Stair Repairs $ 5,000 $ 10,000 $ 3,641 $ 18,641 $ 5,975 $ 12,190 $ 18,165 $ 4,805 $ 4,805 Subtotal $ 443,500 $ 448,500 $ 254,000 $ - $ - $ - $ - $ 51,510 $ 3,641 $ - $ 1,201,151 $ - $ - $ - $ - $ 519,631 $ 535,999 $ 309,625 $ - $ 3,805 $ - $ 1,369,059 $ - $ 67,966 $ 4,805 $ - $ - $ 72,771 2. Waterproofing Work a. Rout And Seal Cracks (Elevated Slabs) $ 1,400 $ 1,400 $ 1,200 $ 1,040 $ 1,061 $ 6,102 $ 1,640.32 $ 1,673 $ 1,463 $ 1,268 $ 6,044 $ 1,373 $ 1,400 $ 2,773 b. Sealant Replacement $ 14,000 $ 14,000 $ 7,000 $ 18,207 $ 18,571 $ 71,778 $ 16,403.23 $ 16,731 $ 8,533 $ 41,667 $ 24,024 $ 24,504 $ 48,528 c. Waterproofing Membrane Patch Repairs $ 10,000 $ 10,000 $ 5,000 $ 7,650.00 $ 32,650 $ 11,716.59 $ 11,951 $ 6,095 $ 29,762 $ 10,094.01 $ 10,094 d. Waterproofing Membrane Recoating (All Supported Levels) $ 220,200 $ 220,200 $ 229,096 $ 233,678 $ 903,174 $ 273,791 $ 25,618.48 $ 299,410 $ 308,333 $ 314,500 $ 622,833 Subtotal $ 25,400 $ 25,400 $ 13,200 $ 220,200 $ 220,200 $ - $ - $ 7,650 $ 248,343 $ 253,310 $ 1,013,704 $ - $ - $ - $ - $ 29,760 $ 30,355 $ 16,091 $ 273,791 $ 26,887 $ - $ 376,884 $ - $ 10,094 $ 25,397 $ 334,238 $ 314,500 $ 684,228 3. Drainage a. Drainage Repairs and Upgrading $ 7,500 $ 7,500 $ 15,000 $ 5,412 $ 5,520 $ 10,933 $ 14,282 $ 14,282 Subtotal $ 7,500 $ 7,500 $ - $ - $ - $ - $ - $ - $ - $ - $ 15,000 $ 5,412 $ 5,520 $ - $ - $ - $ - $ - $ - $ - $ - $ 10,933 $ - $ - $ - $ - $ 14,282 $ 14,282 4. Guards a. New Interior Guard Rail $ 25,000 $ 25,000 $ 50,000 $ 31,706 $ 31,706 $ - Subtotal $ - $ - $ 25,000 $ 25,000 $ - $ - $ - $ - $ - $ - $ 50,000 $ - $ - $ - $ - $ - $ - $ - $ - $ 31,706 $ - $ 31,706 $ - $ - $ - $ - $ - $ - 5. Paint a. Cleaning Painting of Steel Beams and Columns $ 60,000 $ 60,000 $ 120,000 $ 64,946 $ 66,245 $ 131,191 $ 80,752 $ 82,367 $ 163,119 b. Restripe Garage $ 15,000 $ 15,000 $ 15,606 $ 15,918 $ 61,524 $ 18,651 $ 19,024 $ 37,674 $ 21,004 $ 21,424 $ 42,427 Subtotal $ - $ - $ 60,000 $ 75,000 $ 15,000 $ - $ - $ - $ 15,606 $ 15,918 $ 181,524 $ 64,946 $ 66,245 $ - $ - $ - $ - $ - $ 18,651 $ 19,024 $ - $ 168,865 $ - $ 80,752 $ 82,367 $ 21,004 $ 21,424 $ 205,547 6. Exterior a. Concrete Stair Repairs $ 20,000 $ 20,000 $ 21,649 $ 21,649 $ 26,917 $ 26,917 b. Retaining Wall Repairs $ 6,000 $ 6,000 $ 6,624 $ 7,609 $ 14,234 $ 8,569 $ 8,569 c. Metal Façade Panels $ 10,000 $ 10,000 $ 16,236 $ 16,561 $ 32,798 $ 20,188 $ 20,592 $ 40,780 d. Façade Upgrades $ 150,000 $ 150,000 $ 300,000 $ - $ - Subtotal $ 20,000 $ 6,000 $ 10,000 $ 150,000 $ 150,000 $ - $ - $ - $ - $ - $ 336,000 $ 37,885 $ 23,186 $ - $ - $ - $ - $ - $ - $ 7,609 $ - $ 68,680 $ - $ 47,105 $ 20,592 $ - $ 8,569 $ 76,267 7. Miscellaneous Items a. New LED Lighting $ 150,000 $ 150,000 $ 300,000 $ - $ 201,880 $ 205,918 $ 407,798 b. Miscellaneous Work 7% $ 15,000 $ 15,000 $ 15,000 $ 15,000 $ 15,000 $ - $ - $ 6,000 $ 12,000 $ 12,000 $ 105,000 $ 12,000 $ 8,000 $ - $ - $ 18,000 $ 18,000 $ 13,000 $ 13,000 $ 8,000 $ - $ 90,000 $ - $ 15,000 $ 12,000 $ 20,000 $ 20,000 $ 67,000 Subtotal $ 15,000 $ 15,000 $ 15,000 $ 165,000 $ 165,000 $ - $ - $ 6,000 $ 12,000 $ 12,000 $ 405,000 $ 12,000 $ 8,000 $ - $ - $ 18,000 $ 18,000 $ 13,000 $ 13,000 $ 8,000 $ - $ 90,000 $ - $ 216,880 $ 217,918 $ 20,000 $ 20,000 $ 474,798 Total Above $ 511,400 $ 502,400 $ 377,200 $ 635,200 $ 550,200 $ - $ - $ 65,160 $ 279,591 $ 281,228 $ 3,202,379 $ 120,243 $ 102,951 $ - $ - $ 567,391 $ 584,354 $ 338,715 $ 305,442 $ 97,031 $ - $ 2,116,127 $ - $ 422,798 $ 351,078 $ 375,241 $ 378,775 $ 1,527,893 Estimated Contingency 10% $ 51,140 $ 50,240 $ 37,720 $ 63,520 $ 55,020 $ - $ - $ 6,516 $ 27,959 $ 28,123 $ 320,238 $ 12,024 $ 10,295 $ - $ - $ 56,739 $ 58,435 $ 33,872 $ 30,544 $ 9,703 $ - $ 211,613 $ - $ 42,280 $ 35,108 $ 37,524 $ 37,878 $ 152,789 Estimated Engineering Budget 12% $ 61,368 $ 60,288 $ 45,264 $ 76,224 $ 66,024 $ - $ - $ 7,819 $ 33,551 $ 33,747 $ 384,286 $ 14,429 $ 12,354 $ - $ - $ 68,087 $ 70,123 $ 40,646 $ 36,653 $ 11,644 $ - $ 253,935 $ - $ 50,736 $ 42,129 $ 45,029 $ 45,453 $ 183,347 Grand Total $ 623,908 $ 612,928 $ 460,184 $ 774,944 $ 671,244 $ - $ - $ 79,495 $ 341,101 $ 343,099 $ 3,906,903 $ 146,697 $ 125,600 $ - $ - $ 692,217 $ 712,912 $ 413,233 $ 372,639 $ 118,377 $ - $ 2,581,675 $ - $ 515,814 $ 428,315 $ 457,794 $ 462,106 $ 1,864,029 1. Costs are in 2020 dollars. 2. Lost revenues are not included. 3. Utility costs are not included. 4. Contingency for project conditions beyond Owner's control such as variation in quantities, bidding climate and regulatory costs are not included. 5. Estimated costs are based on prevaling wage rates. 6. Costs assumes construction phasing of 20%-25% of the total occupied area at one time, with no phases being captures concurrently. 7. Costs from year 8 on include a 2% cost increase due to inflation. 8. Costs do not include upgrades in structural, mechanical, fire protection or electrical systems. 9. Costs do not include further investigations, investigation costs or upgrades/modifications associated with possible investigation findings. Updated Condition Survey Report Freightway Parking Garage, Scarsdale NY Page 16