Staff Report_Airport WSDOT_Grant_Match

Home Browse Search

J-U-B Agreement for Professional Services Attachment 1A – Detailed Scope of Work Page 1A-3 Provide or obtain field surveys, which include detailed topographic and cross section information of improvement areas for design purposes. Coordinate with surveyors to verify that design survey is performed as required. This will include one (1) on-site meeting with surveyors to review project location and safety. The general scope of the survey work will include the following: The primary area to be surveyed is a portion of the general aviation apron. The survey area shall be approximately 300-ft by 1,800-ft. The pavement and shoulder surfaces within this area shall be section surveyed on 50-ft stations. All topographical features within all of these areas shall be surveyed including but not limited to: grade breaks, pavement markings, tie -downs, building corners, fence, drainage structures (invert elevations, pipes sizes, & rim elevations), pavement markings, utility markers, edge of pavements, and lighting and electrical components. The total of all areas to be surveyed are approximately 540,000 square yards. Existing control monuments shall be used for the survey control and will need to be tied together to check for accuracy. The survey will have to be coordinated with the Airport Manager for airport access and optimum time to minimize disruption to air traffic. The airfield pavements will be open to aircraft, surveyors will have to monitor the local frequency and move out of safety areas for aircraft. The survey shall be conducted in accordance to FAA AC 150/5370 -2G safety guidelines. Vertical datum should be in accordance to NAVD 88, and horizontal datum should be in accordance to NAD 83. Vertical tolerances shall be +0.02-feet for paved surfaces and +0.05-feet for unpaved surfaces. Horizontal tolerances shall be +0.03-feet. The collected data shall be provided on a compact disk to the Engineer with the following information: point number, description, northing, easting, and elevation along with paper copies of any pertinent field notes. No map or drawing will be required. Prepare a letter request for an environmental determination for a categorical exclusion pursuant to FAA Order 1050.1F, Paragraph 5-6.4(e). The letter will include a detailed project description and an exhibit demonstrating the project disturbance area. Environmental work beyond that described will be considered additional work and may require a contract modification. Assemble base data and base maps for the project work area from the design survey , previous projects undertaken, and available aerial data. Prepare preliminary Design Plans (90% complete) for review and discussion with the CLIENT and FAA. It is anticipated that the project design will require twelve (12) plan sheets including: Sheet 1 – Cover Sheet 2 – General Plan Notes Sheet 3 – General Legends, Symbols, and Plan Key Sheet 4 – Construction Safety & Phasing Plan (Phase 1) Sheet 5 - Construction Safety & Phasing Plan (Phase 2) Sheet 6 - Construction Safety & Phasing Details Sheet 7 – Plan View Civil Sheet 8 – Plan View Civil Sheet 9 – Plan View Civil Sheet 10 – Asphalt Repair Details Sheet 11 – Concrete Repair Details Sheet 12 – Pavement Marking Details Prepare preliminary Bidding and Construction Contract Documents and Technical Specifications (90% complete) based on latest version of FAA AC 150/5370-10 “Standards for Specifying Construction on Airports” including the current Regional Notice published by the FAA Airports Districts Office. Complete preliminary quantities of the work items proposed. Prepare a preliminary Engineer’s Opinion of Probable Construction Cost Estimate based on construction cost estimates, phasing into workable portions for constructability, budget, and construction schedule and advise the CLIENT as to budget status. Prepare Draft Construction Safety and Phasing Plan (CSPP) and narrative in accordance with the most current Advisory Circular and prepare the checklist.