C. LAFB West Gate Area Development Statement of Work.docx

STATEMENT OF WORK

West Gate Area Development

FA309922F0017

I. DESCRIPTION OF WORK

Base Bid

The purpose of this project is to create a new airpark in the West Gate Area that will allow the 47th Flying Training Wing to relocate the static aircraft displays from the closed North Gate to the West Gate, and for the installation of xeriscape to improve drainage and dust mitigation. The project includes seven display circles for display aircraft, including information pedestals, concrete aircraft footings, sidewalk, and lighting. To support the airpark, the project also includes a parking lot and assembly area, and minor changes to adjacent roads to provide vehicle access. The project is located at Laughlin Air Force Base in Val Verde County, Texas.

Design includes a Base Bid scope of work and Options 1, 2, and 3 scopes of work. At the time of this Statement of Work preparation, the only construction work awarded is the Base Bid scope of work of which the area is highlighted in the image below and described in the following paragraphs. This scope of work will include earthwork, concrete paving and curbing, and landscape installation.

Prior to any work, the Contractor shall obtain a Base Civil Engineering Work Clearance Request to locate all underground utilities through the appropriate Form AF 103 process. Upon receipt of accepted AF 103, the Contractor shall mobilize and install appropriate erosion and sediment controls including silt fencing and/or fiber rolls per design documents. Existing signage, including Marquee Sign, light poles, lift station, and storm drain manholes should be identified and protected from damage during construction.

The work area is to be cleared and grubbed of vegetation and debris. The work area is to be graded as necessary to provide smooth surface for landscaping and accommodate required grading for drainage. Testing should be performed on existing soils to obtain proctor results. Existing soils to receive landscaping and new concrete pavement to be moisture conditioned and compacted to meet design requirements.

At the bus lane turnaround pavement area to receive modification to existing curbs and pavement as shown on CS102, the Contractor shall determine, and review proposed temporary traffic control process with appropriate Government representatives. Once traffic control process is determined, the Contractor shall install appropriate temporary signage and barriers at area of concrete pavement and curb work. If necessary, temporary traffic directional signage should be placed during the construction period. The Contractor shall sawcut, remove, and dispose of concrete curb as noted in drawings. After removal, the Contractor shall moisture condition, compact, and test subgrade prior to concrete placement. The Contractor is to form and place new reinforced concrete curb and pavement and re-install permanent signage. Old pavement markings are to be removed, if necessary, and new pavement markings are to be installed.

At the landscaping areas to receive new riprap around drainage basin, the Contractor is to excavate as needed to provide minimum 12” of rip rap erosion protection and install the rip rap. At the XL symbol perimeter, the Contractor shall excavate a trench as required and install the reinforced concrete border curb.

Steel edging should be installed around the XL symbol letters and in between grass and rock transition. In areas to receive rock or gravel, the Contractor shall apply a pre-emergent herbicide to the soil. New plants should be installed and fertilized in accordance with the design document requirements. New sod, gravel, and river rock should then be installed as required. Contractor to apply a second application of preemergent herbicide after gravel/rock install is complete.

The Contractor shall water and maintain the landscaping for a minimum of 90 days.

Option 1 – Assembly with 2 Circles

1.1 Construct all items for the airpark development highlighted as “Option 1 – Assembly with 2 circles” in the 100% Design Drawings. The Contractor shall construct a parking lot for the airpark. The parking lot shall have seven (7) striped parking spaces, one handicap parking space, and one bus/RV parking area. The parking lot shall provide accessibility through ramps and sidewalks to meet ABA and ADA requirements. Include paint striping and signage as required per CS103, CS104, and details on CS501. Striping shall be performed in accordance with Specification Section 32 17 23 Pavement Markings. Any removed signage during construction shall be replaced and relocated as specified. Provide wheel stops in parking spaces as shown on F6/CS501.

1.2 The Contractor shall install new roadways, entry points, and curbs to be compatible with the existing West Gate Area traffic patterns and new airpark parking lot.

1.3 The Contractor shall construct an assembly area which will act as the entrance to the airpark from the parking lot. The assembly area shall be comprised of pavers (Approx 5582 SF) with vertical xeriscaping along the southeast side to act as a backdrop for the assemble area and screen to the fence. Basis of design pavers are Holland Series Paver 4” x 8” as detailed on construction drawings (See LS102). Attachment E, Laughlin Legacy – Sustainable Landscape Development Plan. Paver installation detail can be found on 2/LS150. Pavers should follow requirements of Specification Section 32 14 13.13 Interlocking Precast Concrete Unit Paving.

1.4 The Contractor shall install frost free yard hydrants on both sides of the airpark parking lot along with associated water lines in accordance with CU101 Water Utility Plan. Details can be found on CS502. All work associated with frost free yard hydrants shall also follow Specification Section 33 11 00 Water Utility Distribution Piping.

1.5 Electrical: It is the Contractor’s responsibility to work with Rio Grande Electric Cooperative (RGEC) through the Government. The Contractor shall coordinate with RGEC for electrical power utility design, materials and equipment (poles, wires, and transformer), and installation for the airpark. For more details, reference Attachment B – Laughlin AFB Division 01 General Specifications. Specific power requirements can be located on E101, E201, and E301. All electrical work should follow requirements in the specifications in Division 26 – Electrical.

1.6 The Contractor shall install static display circles. This area is inclusive of two static display circles, one on each side of the assembly area. Each will be utilized to display a single aircraft like the existing static display circles along the North Gate Area on Liberty Drive. See Attachment H North Gate Area Static Displays for reference. Concrete for static display circles shall follow requirements outlined in Specification Section 03 30 53 Miscellaneous Cast-In-Place Concrete.

1.7 Xeriscaping inside the static display circles should be installed as shown on LS000. New plantings should be provided as shown on LS plans. Exterior Plants shall meet the requirements of Specification Section 32 93 00 Exterior Plants.

1.8 Grade areas for installation of circles as shown on CG102 and CG103. Grading shall be performed in accordance with Specification Section 31 00 00 Earthwork.

1.9 The circle will include:

1.9.1 An 8 feet wide concrete sidewalk ring around each static display circle. See Detail on CS102 and LS150/6.

1.9.2 LED lighting to highlight the fronts of the static display aircraft while avoiding creating glares to moving vehicles. See lighting layouts on E101. Fixtures per lighting fixture schedule on E201. The lighting shall meet the requirements of Specification Section 26 56 00 Exterior Lighting.

1.9.3 Provide one weatherproof exterior duplex outlet on each circle as shown on E101.

1.9.4 Low profile signage and pedestal to mount facility number signage and aircraft identification as depicted in Attachment H, North Gate Area Static Displays. See 5/LS150.

1.9.5 One free-standing frost-free yard hydrant shall be installed on each end of the assembly area as shown on CU101 Keyed Note 2.

1.9.6 Each static display circle shall include concrete footings with metal welding plates anchored on top of each footing. Layout for aircraft for this section can be found via 1/S101 and 5/S100.

1.9.7 The concrete footings shall be designed to handle the load of each aircraft, respectively. The location of each footing with the metal welding plate shall be custom-fit to each aircraft. See S101 for typical footing elevation.

1.9.8 The Contractor shall ensure all footing elevations are the same within each static display circle.

1.9.9 The Government will install aircraft and utilize existing steel support brackets welded to embeds located at the current aircraft locations.

Note: All static display aircraft relocation and installation shall be accomplished by the Government.

1.10. During construction, protective fencing shall be installed to protect the trees and their root system.

1.11. Note: The aircraft chosen for the two circles are the A-26 and U-2 as seen in Attachment H, North Gate Static Displays

Option 2 – Additional Three (3) Circles

2.1 The requirements for Option 2 include all items for the expansion of the airpark development highlighted as “Option 2 – Additional 3 circles” in 100% Design Drawings.

2.2 Grade areas for installation of circles as shown on CG102 and CG103.

2.3 The work shall include but is not limited to:

2.3.1 Three additional static display circles following the same requirements as listed in Section 1.9.

2.3.2 Sidewalks connecting each static display circle sidewalk ring to the next. See drawing CS101 for plan and detail on 6/LS150.

2.3.3 Xeriscaping inside the static display circles should be installed as shown on LS000. New plantings should be provided as shown on LS plans.

2.4 Note: The aircraft chosen for the three circles are the EB-57, T-33 and T-6 as seen in Attachment H, North Gate Static Displays.

Option 3 – Additional Two (2) Circles

3.1 The construction requirements for Option 3 include all items for the expansion of the airpark development highlighted as “Option 3 – Additional 2 circles” in the 100% Design Drawings.

3.2 Grade areas for installation of circles as shown on CG102 and CG103.

3.3 The construction shall include but is not limited to:

3.3.1 Two additional static display circles following the same requirements as listed in Section 1.9.

3.3.2 Sidewalks connecting each circle to the next. See drawings CS101 for plan and details on 6/LS150.

3.3.4 Xeriscaping inside the static display circles should be installed as shown on LS000. New plantings should be provided as shown on LS plans.

3.4 Note: The aircraft chosen for the two circles are the F-84 and C-45 as seen in Attachment H, North Gate Static Displays.

3.5 The Contractor shall ensure all utilities are compatible with and tie-in to the existing building systems in the area.

General Requirements

4.1 Install silt fence and fiber rolls as shown on CE101 until stabilization of work areas have bene completed. See details on CS502.

4.2 Provide a concrete washout as shown on CS502/A1.

II. COMPONENT/SYSTEM TESTING REQUIREMENTS

In accordance with the contract, testing will be performed on concrete in accordance with requirements of the American Institute of Concrete and specification 03 30 00 Cast-in-Place Concrete in the presence of appropriate Government representatives. Plumbing and electrical testing is not required under this contract as this scope of work are in options not awarded.

III. SYSTEM COMMISSIONING REQUIREMENTS

No system commissioning is required in this contract.

IV. OPERATIONS AND MAINTENANCE TRAINING AND WARRANTY

Landscaping maintenance training will be provided at the conclusion of the project.

A signed warranty letter guaranteeing all workmanship associated with this Contract for one (1) year will be provided as part of the Construction Warranty Management Plan at the conclusion of this project. This letter will include the start date and end date of the warranty period.

V. LIST OF SUBMITTALS

The Submittal Register submitted with the 100% Design Package provides a list of all applicable submittals other than Division 01. A consolidated register will be created and maintained containing the Division 01 required submittals listed in the Contract Division 01 document and the remaining submittal register submitted with the 100% Design Package. The Contractor shall follow all requirements listed in the following design documents:

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