PROJECT SCOPE Agricultural History Farm Park Barn. A. Introduction

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1 PROJECT SCOPE Agricultural History Farm Park Barn A. Introduction The Montgomery County Department of Parks (Parks) is requesting proposals from qualified restoration and preservation contractors to design and modify the historic Bank Barn located in Agricultural History Farm Park, Muncaster Rd., Derwood, MD 20855, to use it for interpretive programming, group tours, and special events. Work includes but not limited to reviewing the Condition Survey Report, surveying the existing conditions, analyzing the code requirements, designing the modifications, submitting the design documents to the permitting agencies, obtaining all the required permits, performing selective demolition as well as construction, and obtaining, after completion of all the required modifications, Use and Occupancy Certificate for Assembly Use. The 455-acre Agricultural History Farm Park, (including the bank barn structure) is listed in the Montgomery County Master Plan for Historic Preservation. This is on the Locational Atlas as part of the historic Bussard Farm, Site MP 22/007, and is of historic significance. All work on the structure including site work should be designed and constructed in accordance with National, State, and local codes and should follow recommended treatment guidelines stated in the Secretary of the Interior s Standards for Preservation of Historic Buildings. The design and construction modifications to the structure shall meet the Use and Occupancy requirements for Assembly while retaining the historic fabric, the building s historic form, features and detailing. The work shall comply with Chapter 24-A of the Montgomery County Code (historic preservation ordinance) and all requirements of the Montgomery County Department of Permitting Services and the Montgomery County Historic Preservation Commission (HPC). The Contractor, along with its sub-contractors shall be experienced in historic preservation and rehabilitation, which includes: architecture, preservation, restoration, structural, mechanical, electrical, and plumbing engineering, and associated site work. The Agricultural Bank Barn houses farm animals in the lower stable level of the building, which are part of an ongoing 4-H program on farm animals, farm life and agriculture. The Friends of Agricultural History Farm Park and the Master Gardeners also offer special programs throughout the year and provide demonstrations on historical farm life, agriculture, and plant-related programs. The park also includes the historic Bussard Farmhouse and historic farm outbuildings, as well as a modern farming Activity Center, which supports Montgomery County agriculture and houses several federal, state and county agencies. The Agricultural Bank Barn, circa 1895, is typical of bank barns found in Montgomery County at the turn of 20 th century and offers visitors a unique perspective on the County's rich farming heritage. Farm animals will remain housed in the lower stable level of the barn (the Undercroft). Hay was originally stored and grain threshed on the barn's main floor, which is currently accessible to the public and rented for weddings and social occasions, in addition to being used for other special events. Among other information, the Condition Survey Report includes the following information that requires verification by the selected Contractor: The barn is approximately 45' x 80' with interior clear space from the second floor to the roof. The building is constructed of solid oak timber beams and columns connected together with mortise and tenons. Joints are held together with wood pins, although supplemental cabling was added at a later date. The exterior shell is wood lap siding. The barn is built on a hill, in a north/ south direction, making it grade accessible on both the first and second floors. The approximate size of the barn is summarized below. 1

2 General Size and Use of the Building Undercroft 2,662 S.F. +/- Two (2) Storage Areas 480 S. F. Each Staff Area 265 S. F. Barn Floor 2,613 S.F. Total Barn Area on two floors: 3,358 S. F. B. Project History and Program of Requirements A Condition Survey of the Agricultural Bank Barn was prepared by Symmetry First Architects. The survey report identified the following issues to be addressed by the Design Build Contractor while designing and performing demolition and construction modifications for obtaining a Use and Occupancy Certificate for Assembly: Address requirements for ADA access from the parking to the activities inside the facility, including exit doors Address requirements for guardrails at the sliding door opening on the north wall to meet code requirements Address fire rating requirements of the two existing storerooms located at barn level Provide exit signs, interior and exterior emergency lighting Provide sprinkler system, heat detectors and fire alarm system Reinforce second floor framing (joists and beams) to meet 100 lbs/sf live load requirement Reinforce end walls to meet local wind and seismic requirements Reinforce mortise and tenon joints at interior column frames to meet structural requirements Verify structural integrity of the foundation, install connectors at wood column bases and install concrete wall at stone foundation wall. Reinforce roof rafters and beams to meet 30 lbs/sf live load requirement and replace roof The Condition Survey made several specific comments that may not be in keeping with an historic structure. The selected Contractor shall verify and confirm the project requirements early in the design process with the M-NCPPC staff team and ensure that the project goals and any consequent structural changes are achievable, while maintaining the historic integrity of the interior and exterior of the barn and meeting the requirements of all the permitting agencies. For example, the survey s recommendation to plaster over interior stone walls would destroy a character-defining historic surface and would not be approved by Park staff. In addition, the recommendations for storage rooms need to be reconsidered, as these alterations could be detrimental to the historic structure. In view of the limited funds available for the project, the cost of preparation of design drawings and obtaining the required permits for the reinforcements to the barn roof structure to meet the code shall be included in the base bid for this project. The cost for the demolition and construction modifications associated with this roof structure shall be submitted as an alternate. The current staff preference is to replace the existing roof with 5V crimp metal roofing, if approved by the HPC. This item may be added by M-NCPPC to the Contract by issuing a change order to the Contract during the contract period. The latest guidelines/requirements of the Americans with Disabilities Act (ADA) shall also be incorporated into public use areas of the barn, including the following: An ADA accessible route to provide access from parking or drop-off areas to the barn Access to and within the public areas of the building, compliant with the ADA requirements for Program Access Signage as required 2

3 Access to restroom facilities or portable toilets C. Schedule for Completion of the Construction: Scheduled and programmed activities occur within the barn from April through early December. The demolition and construction modifications must occur between December 15, 2013 and March 31, The Contractor shall prepare documentation and obtain construction permit by December 15, The Contractor may start construction related work earlier than December 15, 2013 if the Construction Manager approves the early start of work that does not interfere with the activities of the facility and does not require an approved permit. All other work shall start only after obtaining all the permits and after December 15, All work shall be completed on or before March 31, 2014 and Use and Occupancy certificate obtained. All the required material and equipment shall be procured in advance and preferably have it delivered before the required date to avoid delay due to severe adverse weather during winter months. D. M-NCPPC Project Management The Project Manager will be the Contractor s primary contact throughout the design and permitting phases of work. The Construction Manager will be the primary contact during the construction phase of work. E. Required Contractor Team The selected Contractor shall assemble an inter-disciplinary team to design and construct the major components of the project work. One Contractor Project Representative as a Project Manager for the project with documented experience in similar work and should be responsible for project management and coordination of inter-disciplinary team s contract work within the schedule. An architect with documented experience in code analysis, modifying, preserving, restoring, and/or rehabilitating historic properties for public and assembly use; Structural, civil, mechanical, plumbing, electrical engineers with experience in designing modifications to historical preservation projects, ; experts in value analysis cost estimating, fire suppression and alarm systems; A Project construction Superintendent who is knowledgeable with documented experience in similar work. F. Scope of Work Design Activity All work should be designed and installed in accordance with National, State, and local codes and should follow recommended treatment guidelines in the Secretary of the Interior s Standards for Preservation 3

4 of Historic Buildings. The following tasks are considered essential to complete the Project for intended use; however the selected Contractor may add more tasks to complete the project. 1. Visit site, review and field verify all the information included in the Condition Survey Report for performing the design and preparing the construction documents. 2. Immediately after receiving the Notice to Proceed, participate in a kick-off meeting with the M- NCPPC Project team members to discuss and understand the role of M-NCPPC representatives in completing the project and introduce all the key personnel of the Contractor. 3. Prepare and submit within seven (7) calendar days of receiving the Notice to Proceed letter (NTP) a detailed completion schedule listing starting and completion dates for all tasks required to accomplish project goals and objectives. The schedule shall show how all the design, permitting, demolition, construction and obtaining the Use and Occupancy Certificate will be completed on or before March 31, Submit the project schedule electronically using Microsoft Project or similar software approved by the M-NCPPC. 4. Upon completion of site visit and verification of all the available information submit a report if any of the required tasks have to be modified to complete the project for intended use. Make a presentation of work plan, preservation/stabilization methods, sequence of work and alternate methods of work with the M-NCPPC project team and address their comments. Prepare and submit 3 sets of preliminary plans, including sections, elevations, photography and sketches that are required to complete the proposed work. If requested by the Project Manager, meet with M-NCPPC project team, and address the recommended revisions. 5. Review preliminary plans, including all exterior and site modifications affecting the barn, with Historic Preservation Commission (HPC) staff. Attend a preliminary consultation meeting with the HPC (at their regularly scheduled meeting) if recommended by HPC staff. Prepare all presentation materials as required by the HPC. 6. Attend a preliminary meeting with the Department of Permitting Services to discuss any proposed work that may require clarification or interpretation of code requirements (such as obtaining a waiver from specific requirements for the historic structure.) 7. Attend a public meeting to present the proposed work for public information and comment. Prepare all presentation materials (including a PowerPoint presentation) and handouts, and present the project with the M-NCPPC project manager. Provide and set up any equipment that is required for the presentation. Project Manager will prepare and send out public notices and reserve the room for the meeting. 8. Prepare and submit 3 sets of 90% construction documents and specifications for the project by addressing the review comments from the HPC, DPS, M-NCPPC staff, members of the public, and current code requirements. Prepare site plan showing existing and proposed features including but not limited to topography, construction access, staging, security fence, silt fence, clearing, grubbing, grading, and public access to the preserved/stabilized building. Include all necessary graphics (plans, sections, elevations, details) to convey the design concepts. Include details for architectural, mechanical, electrical, plumbing, structural, security/fire alarm, fire suppression and utilities. Prepare and submit all drawings in AutoCAD 2010 or later version. If requested by the Project Manager, meet with M-NCPPC project team, and address recommended revisions. 4

5 9. Attend all required permit approval meetings and obtain all necessary final permits, including but not limited to a Historic Area Work Permit (and final Historic Preservation Commission approval,) and all required building permits from Montgomery County. 10. Prepare and submit to M-NCPPC final 100% construction documents, specifications, copies of all the required permits and revised project schedule if needed. Submit one set of original signed and sealed documents and five copies of 100% construction documents. (See Deliverable Requirements.) Construction Activity 11. Following M-NCPPC acceptance of the 100% construction documents proceed with construction work in accordance with the approved plans and specifications. Refer to Paragraph D (above) for schedule and restrictions. 12. Attend a pre-construction meeting with the M-NCPPC Project and Construction Manager. 13. Attend regularly scheduled construction progress meetings with the Construction Manager while the construction is in progress. 14. Submit shop drawings and all other submittals to the Construction Manager for approval using Submittal Exchange Web site. Refer to Special conditions for complying with the requirements of using Submittal Exchange for submittal approval process. 15. Perform all work in accordance with project and permit requirements. 16. Upon completion of the work, obtain approval from all the permitting agencies including obtaining Use and Occupancy Certification. 17. Request the Construction Manager to inspect the completed project for acceptance by the M- NCPPC. Upon completion of inspection, if the project is accepted for intended use, the Construction Manager will issue a substantial completion letter with a punch list attached to it if any of the minor items of work are not completed. 18. Prepare and submit as-built drawings in AutoCAD, following M-NCPPC requirements, and submit for review and acceptance by the M-NCPPC Construction Manager. Revise drawings as requested by Construction Manager. 5