Memorial_Avenue_Irrigation_Extension___Turf_Rehabilitation_SOW_-_PMIS_241547I_rev_02_26_2026.docx

National Park Service U.S. Department of the Interior

George Washington Memorial Parkway Professional Services Division Arlington, VA

Irrigation Extension and Turf Rehabilitation along Memorial Avenue

National Park Service George Washington Memorial Parkway (GWMP) McLean, VA 22101

PMIS No. 241547I

Statement of Work:

Project Title and Location:

Memorial Avenue Irrigation Extension and Turf Rehabilitation

A. Memorial Avenue, Arlington VA 22202

Background Information

George Washington Memorial Parkway (GWMP) was established by Congress on May 29, 1930, through Public Law 71-284, the Capper-Cramton Act. The parkway runs along the Potomac River through two states—Virginia and Maryland—as well as the District of Columbia, protecting the landscape and natural shoreline of the river while offering magnificent scenic vistas of Washington, D.C., and the Great Falls of the Potomac. Along its route, the parkway also connects several important historic sites, memorials, and scenic and recreation areas in the Washington, D.C., metropolitan area. The parkway and its associated trails provide a scenic place to play and rest in the busy Washington, DC metropolitan area.

A. The initial element of this project is to remove existing turf along both sides of Memorial Avenue from the Arlington National Cemetery (ANC) and NPS property line, northeast to the Boundary Channel Bridge, and from the Avenue’s curbs to the existing Holly hedges. The Contractor shall dispose of the existing turf, transporting the material offsite to an authorized disposal facility or composting yard.

B. Following the removal of existing turf, an in-ground irrigation system shall be installed, per shop drawings, to service the rehabilitated turf areas and a drip irrigation system installed, per shop drawings, for the existing Holly hedges located on structure. The in-ground irrigation extension shall tie into ANC’s system near the property line, and all new irrigation components and controllers shall be Hunter Landscape Irrigation brand products, or approved equal, to ensure compatibility and integration with the ANC’s existing irrigation system. Note that the new, in-ground irrigation system is an extension of another government entity’s system (i.e., ANC’s in-ground irrigation) and must be 100% compatible with the existing Hunter system to function properly; therefore, the irrigation extension must consist of Hunter brand irrigation components and controllers to seamlessly operate as one continuous system.

C. Following irrigation installation, sod shall be laid to re-establish the turf panels with a sod mix that conforms to the sod used along the ANC portion of the Avenue: a 95% blend of three cultivars of Tall Fescue (Festuca arundinacea) and 5% Kentucky Bluegrass (Poa partensis). The Contractor shall submit sod specs for NPS approval prior to turf installation. The approved sod shall be installed to seamlessly tie into and match the ANC’s turf along Memorial Avenue.

D. Shop drawings for irrigation system and drip line must be reviewed and approved by NPS SMEs prior to implementation.

E. Care shall be taken not to physically impact either the roadway, curbing, or other historic features.

F. Any park infrastructure impacted during conservation activities, including but not limited to paved and unpaved roadways, walkways, turf, shall be restored to their original conditions upon completion of the project.

G. No vegetation or landscape features shall be cleared or removed as part of this project without prior approval from GWMP Resource Management.

H. In the event that artifacts are accidentally discovered during construction work, workers on-site will notify the project leader and GWMP Cultural Resource Management immediately and work stopped until the site can be examined or otherwise determined okay to proceed with construction work.

I. The Government reserves the right to exercise the option for services to map the NPS portion of Memorial Avenue; surveying shall be in a format compatible with the NPS GIS database. The Contractor shall complete a utility survey for the project area and scope the depth of soil on structure within the project area prior to demolition (i.e., removal of existing turf). Additionally, the Contractor shall investigate means and methods to run irrigation lines around the Metro escalator and elevator plazas and beneath the Route 110 / GWMP on-ramp.

General Conditions A. Services: The Contractor shall provide all personnel, equipment, traffic control, dumpsters, supplies, transportation, hauling, permits, materials, supervision, and other items and non-personal services necessary to perform the work as defined in this SOW, except for those items specified as government furnished property and services. The Contractor shall perform to the standards in this contract.

B. Codes and Licenses: The Contractor shall accomplish all items listed above while adhering to local, state, and federal regulations for construction and safety. The Contractor and sub-contractors shall be licensed as required by their respective trade(s) and certified in the product(s) that are determined to be installed.

C. Quality Assurance: The Government shall evaluate the Contractor’s performance under this contract in accordance with current local, State, and Federal codes, standards, and regulations.

D. Quality Control: The Contractor shall develop and maintain an effective quality control program to ensure services are performed in accordance with this SOW. The Contractor shall develop and implement procedures to identify, prevent, and ensure non-recurrence of defective services. The Contractor’s quality control program is the means by which he assures himself that his work complies with the requirement of the contract. The Contractor shall develop and submit a Quality Control Plan for review and approval 30 days after contract award, or 10 days after Notice to Proceed – whichever is earlier. Any modifications must be submitted, reviewed, and approved. After acceptance of the quality control plan the Contractor shall receive the Contacting Officer’s acceptance in writing of any proposed change to his QC system. As part of the QC plan, the Contractor must supply a submittal register 30 days after award.

E. Hours of Operation: Monday through Friday, 7:00 AM to 5:00 PM. Weekend work should be requested and coordinated with the COR. No work is to be performed on Federal holidays.

F. Recognized Holidays: Contractor shall not perform services on holidays. Exemptions to these requirements may be requested of the CO five (5) days prior to the scheduled change and must be approved by the COR.

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G. Place of Performance: The work to be performed under this contract will be performed along the NPS-portion of Memorial Avenue, from the ANC-NPS property line, northeast to Boundary Channel Bridge.

H. Type of Contract: The Government will award a firm fixed price contract for this SOW.

I. Physical Security: The Contractor shall be responsible for safeguarding all government equipment, information and property provided for contractor use. At the close of each work period, government facilities, equipment, and materials shall be secured. The Contractor’s equipment, materials and staging areas shall also be secured to prevent theft and trespassing by park visitors.

J. Safety Requirements: The Contractor shall incorporate as a part of the safety plan a pedestrian and traffic control plan to be submitted for review and approval. This pedestrian and traffic control plan shall be in accordance with Manual on Uniform Traffic Control Devices (MUTCD) standards Reference Figure 6H-35 Mobile Operation on a Multi-Lane Road (TA-35). At no time shall work take place along the roadway without safety control measures in place. Badges are not required but personal protective equipment (KASK style hard hats, high visibility vests, safety glasses, gloves and steel toe or equivalent boots) is mandatory at all times while on-site.

K. Key Personnel: The follow personnel are considered key personnel by the Government: Project Manager (PM), Superintendent and Safety Supervisor. The Contractor shall provide a PM who shall be responsible for the performance of the work. The name of this person and an alternate who shall act for the Contractor when the Manager is absent shall be designated in writing to the Contracting Officer and the COR. The PM or alternate shall have full authority to act for the Contractor on all contract matters relating to daily operation of this contract. The PM or alternate shall be available between 7:00 am – 5:00 pm Monday thru Friday except Federal holidays or when the Government facility is closed for administrative reasons. Qualifications for all key personnel are listed below: PM and Superintendent and Safety Supervisor shall have 10 years of experience with projects of similar scope and scale. In addition, the safety supervisor shall have a current Construction Safety Manager Certification (CSMC). The Superintendent and Safety Supervisor may be the same person.

L. Subcontractor Requirements: Provide documentation substantiating the subcontractors’ qualifications and licenses for operating a business in VA.

M. Workforce: The Contractor must, at all times, maintain an adequate workforce for the uninterrupted performance of all tasks defined within this SOW when the Government facility is not closed for the above reasons. When hiring personnel, the Contractor shall keep in mind that the stability and continuity of the workforce are essential. Any acceleration of the schedule, over-time, premium time shall be the responsibility of the Contractor in order to satisfy the schedule requirements.

N. Identification of Contractor/Subcontractor Employees: All contract personnel attending meetings and working in other situations where their contractor status is not obvious to third parties are required to identify themselves as such to avoid creating an impression in the minds of members of the public that they are government officials.

O. Site Visit: The Contractor shall visit the site and verify the existing conditions. This means the Contractor shall visually inspect the space and investigate to determine any problem to perform the job. The Contractor is required to verify all approximated measurements provided under Tasks and Deliverables.

P. Labeling: All submittals, correspondence, and billing invoices shall reference GWMP – MEMORIAL AVENUE IRRIGATION EXTENSION AND TURF REHABILITATION, and the project contract number.

Q. Confirmation Notices: The Contractor shall provide a record of all conferences, meetings, discussions, verbal directions, telephone conversations, etc., that the Contractor and/or their representative(s) participates in on both project and contractual matters related to assignments under this Scope of Work. The Contractor shall forward each Confirmation Notice to the COR and GWMP/NPS Point of Contact not later than 5 working days after the event. Notices may be in contractor format.

R. Project Status: The Contractor shall communicate weekly via telephone or meeting with the COR and NPS Point of Contact to review the project schedule, progress, and any issues that may adversely affect the schedule and/or progress.

S. Project Schedule: The Contractor will develop, propose, and maintain a detailed project schedule which shall be submitted and approved prior to the issuing of the Notice to Proceed.

T. Period of Performance: The work shall be executed in a diligent and as expeditiously as possible in accordance with a negotiated firm fixed price and performance period. The period of performance of this project shall be a maximum of ninety (90) days.

U. Access: The Contractor shall not have access to or be admitted into any structure outside the areas designated for the project.

V. Permits and Inspections: The Contractor shall, without additional expense to the Government, be responsible for obtaining any licenses, fees, insurance, bonds, inspections, permits, and for complying with any federal, and municipal laws, codes, and regulations applicable to the performance of the work. The Contractor shall also be responsible for all damages to persons or property that occur as a result of the Contractor’s fault or negligence and shall take proper safety and health precautions to protect the work, workers, the public, and the property of others. The Contractor shall also be responsible for all materials delivered and work performed until completion and acceptance of the entire work, except for any completed unit of work which may have been accepted under the contract.

Specific Tasks and Deliverables The purpose of this SOW is to secure the components, installation materials and qualified labor required to successfully accomplish the following tasks. Contractor shall:

A. Pre-construction requirements:

i. Submittal of all qualifications

ii. Provide insurance and Payment and Performance bonds

iii. List/Schedule of submittals (based on shop drawing documents and specifications)

iv. Staging and Logistics Plan

v. Traffic Control Plan per Manual on Uniform Traffic Control Devices MUTCD Standards Reference Figure 6H-35 Mobile Operation on a Multi-Lane Road (TA-35)

vi. Waste Management

vii. Health and Safety Plan

viii. Emergency Plans in Case of Water Event B. Schedule

a. The Contractor shall develop and submit a baseline schedule for review and approval 30 days after contract award, or 10 before Notice to Proceed – whichever is earlier.

C. Submittals (conforming to Contract Documents and Specifications)

a. Samples (as necessary)

b. Product Data (as necessary)

c. Shop Drawings (as necessary) D. Construction Scope

a. Mobilization

b. Remove existing turf along both sides of Memorial Avenue from the Arlington Nation Cemetery (ANC) and NPS property line, northeast to the Boundary Channel Bridge, and from the Avenue’s curbs to the existing Holly hedges. Protective measures shall be undertaken to safeguard the Holly hedges, statue-memorials exposed aggregate sidewalks, granite curbs and roadway (with granite cobble centerline) in advance of demolition (i.e., removal of existing turf). The Contractor shall provide a statue-memorials, hardscape, and Holly hedge protection plan for NPS approval prior to initiation of site work. Removed turf shall be transported offsite to an authorized disposal facility or composting yard.

c. Per the construction documents, install an in-ground irrigation system to cover the rehabilitated turf panels (of new sod) and a drip irrigation system to service the Holly hedges located on structure. The in-ground irrigation extension shall tie into ANC’s system near the property line, and all new irrigation controllers and components shall be Hunter Landscape Irrigation brand products, to ensure 100% compatibility and integration with ANC’s existing systems. The Contractor shall coordinate with the ANC’s Horticulture Team and the ANC’s Irrigation Contractor to make the necessary connections and tie-ins to the ANC’s in-ground systems.

d. Install sod to re-establish the turf panels with a turf mix that conforms to sod used along ANC portion of the Avenue: a 95% blend of three cultivars of Tall Fescue (Festuca arundinacea) and 5% Kentucky Bluegrass (Poa partensis). The Contractor shall submit sod specs for NPS approval prior to installation. The approved sod shall be laid seamlessly to tie into and match the ANC’s turf along Memorial Avenue. Additionally, the new sod shall be installed to match the grades of the original turf. The Contractor shall repair and replace sod dug up or damaged on ANC property, notably where NPS’s new irrigation system connects to the ANC’s existing in-ground system; the replacement sod shall match the ANC’s existing sod mix along the Avenue and be laid to seamlessly match the grades of the original turf.

e. The Contractor shall incorporate as a part of his safety plan a pedestrian and traffic control plan to be submitted for review and approval. This pedestrian and traffic control plan shall be in accordance with MUTCD standards. At no time shall work take place along Memorial Avenue without safety control measures in place.

f. The Contractor shall submit a staging plan, parking plan, and sidewalk closure plan for NPS approval prior to initiation of site work.

E. Additional Services

a. The Contractor shall provide complete as-built plans for the new irrigation systems and sod installation prior to close-out of the project.

Contract Administration A. The Contractor shall not conduct any work that is beyond this Statement of Work and accompanying specifications unless directed in writing by the Contracting Officer (CO). Any work done by the Contractor beyond this SOW and accompanying specifications and drawings without direction from the CO will be at the Contractor’s own risk and at no cost to the Government.

B. The Contracting Officer shall provide a Notice to Proceed (NTP) to the Contractor. No work shall be initiated until the NTP is issued by the CO.

C. The CO may designate more than one individual to serve as the Contracting Officer’s Representative (COR). The Contractor will be furnished evidence of COR appointments, including explicit authority delegated to each COR and their responsibilities.

D. The Government does not make representations or warranties of whatsoever kind or nature, either expressed or implied, as to the quality, level of completion, accuracy, extent of compliance with the standards, codes and requirements described or referred to in the SOW, or the extent of coordination between or among the documents provided to the Contractor.

E. The Contractor shall refer to the other requirements in the accompanying specifications for this project.

F. Pre-Construction submittals shall be submitted no later than one week prior to pre-construction conference. Notice to Proceed will not be issued by the CO until Division 1 Submittals are accepted by the COR and a Pre-Construction Conference is held.

G. The Contractor shall familiarize themselves with the General Requirements as stipulated in the accompanying specifications.

Definition and Acronyms

A. DEFINITIONS:

a. CONTRACTOR. A supplier or vendor awarded a contract to provide specific supplies or service to the Government. The term used in this contract refers to the prime.

b. CONTRACTING OFFICER. A person with authority to enter into, administer, and or terminate contracts, and make related determinations and findings on behalf of the Government. Note: the only individual who can legally bind the Government.

c. CONTRACTING OFFICER'S REPRESENTATIVE (COR). An employee of the U.S. Government appointed by the contracting officer to administer the contract. Such appointment shall be in writing and shall state the scope of authority and limitations. This individual has authority to provide technical direction to the Contractor as long as that direction is within the scope of the contract, does not constitute a change, and has no funding implications. This individual does NOT have authority to change the terms and conditions of the contract.

d. DEFECTIVE SERVICE. A service output that does not meet the standard of performance associated with the Performance Work Statement.

e. DELIVERABLE. Anything that can be physically delivered but may include non-manufactured things such as meeting minutes or reports.

f. KEY PERSONNEL. Contractor personnel that are evaluated in a source selection process and that may be required to be used in the performance of a contract by the Key Personnel listed in the SOW. When key personnel are used as an evaluation factor in best value procurement, an offer can be rejected if it does not have a firm commitment from the persons that are listed in the proposal.

g. PHYSICAL SECURITY. Actions that prevent the loss or damage of government property.

h. QUALITY ASSURANCE. The Government procedures to verify that services being performed by the Contractor are performed according to acceptable standards.

i. QUALITY ASSURANCE Surveillance Plan (QASP). An organized written document specifying the surveillance methodology to be used for surveillance of contractor performance.

j. QUALITY CONTROL. All necessary measures taken by the Contractor to assure that the quality of an end product or service shall meet contract requirements.

k. SUBCONTRACTOR. One that enters into a contract with a prime contractor. The Government does not have privity of contract with the subcontractor.

l. WORKDAY. The number of hours per day the Contractor provides services in accordance with the contract.

m. WORK WEEK. Monday through Friday, weekend work to be coordinated and approved by COR.

B. ACRONYMS:

Construction Requirements A. The Contractor will be provided with a storage and staging area, if needed, as determined by the COR and National Park Service.

B. If debris exposed from turf removal and/or irrigation and sod installation interferes with walkways or Memorial Avenue, the Contractor shall have flaggers to notify the public and clean the walkways/roadway from all debris before the end of the day.

C. No traffic control devices shall remain overnight along Memorial Avenue.

D. The Contractor shall, at all times, keep the work area free from accumulation of waste and construction materials and comply with all federal, state, and local regulations pertaining to the storage, transport and disposal of wastes.

E. Upon completing construction, the Contractor shall be responsible for repair of any damage incurred to buildings, pavement, landscaping, etc. as a result of storage and construction activities.

F. The Contractor is responsible for obtaining any additional off-compound storage areas as required and at their expense.

G. Upon completing construction, the Contractor shall remove all temporary facilities and leave the project site in a clean and orderly condition acceptable to the COR.

H. Storm Protection: should warnings of wind of gale force or stronger be issued, the Contractor shall take every practicable precaution to minimize danger to person, the work and adjacent property. Precautions shall include, but not be limited to, closing all openings, removing all loose materials, tools and equipment from exposed locations, and other temporary work.

I. Turf disturbed by construction activities on Arlington National Cemetery (ANC) property shall be replaced with sod to match the ANC’s turf specs and approved by the COR. These shall include areas where boring, excavation, trenching, or any other means of soil disturbance takes place, and areas where existing turf is killed or compacted by construction activities. All areas receiving sod shall be prepared to ensure success of sod plantings. Landscape trees or shrubs shall be protected throughout construction work. Any trees or shrubs damaged by construction activities shall be replaced with same species and size at no additional cost to the Government.

Contractor Furnished Items A. General: The Contractor shall furnish all labor, supervision, materials, licenses, permits, tools, insurance, transportation, equipment required to perform work under this contract that are not listed under Section IX of this SOW.

B. Materials: In addition to the requirements above in Section IV the Contractor shall provide all signage/wayfinding for park visitors around the construction zone.

C. Waste Removal: The Contractor shall provide dumpsters, if needed, and be solely responsible for maintaining a clean work area.

Government Furnished Items A. Services: The Government will provide hot work permits (any open flames for cutting, brazing, welding), if needed, and provide review and approval of submittals.

B. Facilities: The Government will provide a designated laydown area (to be enclosed with temporary fencing) and parking spaces for the Contractor and subcontractors. The Contractor and subcontractors are prohibited from utilizing NPS or ANC bathrooms and lavatories.

C. Utilities: The Government will NOT provide water and electrical power. The Contractor shall be responsible for operating under conditions that preclude the waste of utilities, which include turning off the water faucets or valves and not leaving equipment running overnight.

D. Equipment: The Government will not be providing any equipment under this contract.

E. Materials: The Government will not be providing any materials under this contract.

End of Statement of Work GWMP 241547I Revised February 11, 2025

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