HomeMy WebLinkAboutTO11 2022 Hangar Taxilane Development_scope_r2
1
TASK ORDER #11
AGREEMENT AND AUTHORIZATION FOR
ENGINEERING CONSULTING SERVICES
(R2)
By this Agreement dated January 12, 2022, the Kittitas County (Client) authorizes Century West Engineering
Corporation (Consultant) to carry out and complete the following Services in consideration of the mutual covenants
set forth in the Professional Services Agreement (Master Agreement), executed between Kittitas County and CWEC,
and dated on October 7, 2019; and for projects with Federal funding the following attachment: FAA Professional
Service (A/E) Contract Provisions.
Project: Task Order #11 – 2022 Hangar Taxilane Development
Project No.: 12436.
Scope of Services:
Overview
The Client has solicited from Century West Engineering services for design development of a new taxilane that is to be
located south of the mid-field County owned T-hangars and west of the terminal building.
This project scope provides development of layout alternatives and cost analysis, preparations of bid documents of the
selected alternative, and bidding support.
The prime consultant is Century West Engineering. KPG is a subconsultant to Century West Engineering, and will provide
survey services. HWA is a subconsultant to Century West Engineering, and will provide geotechnical assessment
services.
The activities and work elements for each task are described as follows.
TASK 1 – Administration
Administrative tasks will include the following:
1.1 Project setup, administration, invoicing, and coordination.
TASK 2 – Survey & Base Map Set Up
2.1 Topographical Survey Services (KPG). Perform full topographic survey of the project site. The area is
approximately 2 acres. The consultant will engage a utility locate firm to denote and mark on-airport utilities
within the project site.
2
2.2 Consultant will prepare a (CAD) base map using the topographic survey completed in Task 2.1 and
supplemented with mapping from previous projects on the airport provided by the County.
DELIVERABLES:
• Civil3D base map of the project area
TASK 3 – Geotechnical Investigation
3.1 Geotechnical Site Investigation and Analysis (HWA). A geotechnical site investigation will be conducted in
order to provide key data of existing subgrade conditions. The geotechnical data obtained will provide
information to support the pavement design.
3.2 Prepare draft and final geotechnical report (HWA).
DELIVERABLES:
• Draft and final geotechnical report
TASK 4 – County Environmental Review and Permitting
Per previous coordination with FAA, no additional NEPA review is anticipated. Permitting effort within this scope is
limited to the preparation of a grading permit documentation package. The grading permit application package assumes
inclusion of application, site plans, erosion control plans, stormwater site plan report, and SEPA checklist.
4.1 Conduct pre-application meeting with Kittitas County to determine project review and permitting
requirements. Meeting is presumed to be conducted virtually via web-conferencing and attended by the
Project Manager.
4.2 If necessary, prepare a Kittitas County Grading Permit application and packet of applicable plans. The County
to pay all application fees and costs. Plans and reports are to be prepared under a separate task within this
scope.
4.3 If necessary, prepare a SEPA checklist for submittal to the County, as applicable for construction of the
improvements. County is to pay all application fees and costs.
DELIVERABLES:
• Pre-application meeting minutes
• Grading permit application packet
• SEPA checklist
TASK 5 – Preliminary Engineering Alternatives Analysis
5.1 Prepare up to three concept level alternatives for the new taxilane configuration. The conceptual alternatives
shall conform to the requirements and guidance of FAA Advisory Circular 150/5300-13A Airport Design.
3
5.2 Prepare pavement design identifying the pavement section for the new taxilane.
5.3 Prepare a conceptual level cost estimate for each of the alternatives developed in Task 5.1.
5.4 Conduct a review meeting with the County to discuss the alternatives and identify the preferred alternative.
DELIVERABLES:
• Plan sheet of each concept level alternative (up to three alternatives)
• Pavement section design
• Construction cost estimate for each alternative (up to three alternatives)
TASK 6 – Intermediate Design
Prepare an intermediate level design of the preferred alternative. Intermediate design will include the following:
6.1 Finalize horizontal layout of preferred alternative and prepare vertical grade design and transitions to existing
pavement tie-ins.
6.2 Prepare draft Construction Safety and Phasing Plan (CSPP) and draft 7460. 7460 will be prepared for
temporary construction impacts and the permanent condition. Upload the CSPP and 7460 to the OE/AAA
portal for review by all FAA offices.
6.3 Prepare preliminary construction phasing/safety/work area plan drawings to be incorporated into the
construction plans set.
6.4 Perform engineering for development of the taxilane paving and grading plans.
6.5 Prepare a demolition design to identify and depict items scheduled for removal.
6.6 As necessary per County requirements determined in the task 4 County pre-application meeting, prepare a
drainage design and draft drainage site plan technical report for the taxilane construction. Drainage design
and report will be per Kittitas County requirements. It is assumed that drainage design is limited to surface
runoff to infield grades, and water quality treatment is achieved by filter strips and/or infiltration Best
Management Practices (BMPs). It is assumed that stormwater conveyance, flow control, and detention is not
required for this project.
If required by the County the limited Stormwater Site Plan will be prepared for the project improvements
based on the requirements of the Department of Ecology Stormwater Management Manual for Eastern
Washington. Stormwater design elements may require and are limited to the following items:
a) Perform a site analysis using existing documents and reports, and evaluation of existing site conditions.
b) Using the findings of the site analysis and guidance of the regulating documents determine the applicable core
drainage elements for this project.
c) Prepare a preliminary and final design of the permanent stormwater system BMPs.
d) As necessary and determined as part of task 5.4, prepare a preliminary and final design of a subdrainage
system to protect the reconstructed pavement section.
4
e) Prepare a draft Stormwater Site Plan report and submit to the County for review. Provide draft via email in
PDF format.
f) Coordinate and address review comments and incorporate changes into draft report.
g) Prepare a final Stormwater Site Plan report and submit to the County for approval. Provide report via email
in PDF format.
6.7 Prepare a pavement marking design for the taxilane.
6.8 Prepare typical sections, paving details, and miscellaneous details required for construction.
6.9 Prepare a preliminary erosion control plan and details. Erosion and sediment control plan will meet
Washington Department of Ecology guidelines.
6.10 Prepare intermediate plans for the taxilane construction. 16 plan sheets are anticipated; these include:
• Cover Sheet (1)
• Site Survey & Control Plan (1)
• Construction Safety & Phasing Plan (1)
• Construction Safety & Phasing Notes and Details (1)
• Demolition Plan (1)
• Erosion Control Plan (1)
• Erosion Control Notes & Details (1)
• Taxilane Plan/Profile (2)
• Typical Pavement Sections (1)
• Grading Sections (2)
• Marking Plan & Marking Details (1)
• Stormwater & Subdrainage Site Plan & Details (2)
• Pavement Marking Plan & Details (1)
6.11 Prepare intermediate level project manual of bidding documents and specifications.
• Bidding documents will include bidding/contract specifications, general and special provisions, technical
provisions, and other related sections and forms.
• Specifications will be developed using Advisory Circular 150/5370-10 (latest edition), Standards for
Specifying Construction of Airports and any boilerplate front end specifications provided by the County.
6.12 Prepare intermediate level engineer’s estimate for the cost of construction.
6.13 Compile intermediate level submittal package and submit to the County for review electronically.
6.14 Conduct in-house QA/QC review of intermediate level submittal documents.
6.15 Consultant will lead an intermediate review meeting (via phone or web conference) with the County to
review the intermediate design – plans, specifications, and project cost.
DELIVERABLES:
• Intermediate level plans (PDF)
• Intermediate level project manual of bidding documents (PDF)
• Intermediate level engineer’s estimate (PDF)
5
• Draft Construction Safety and Phasing Plan (CSPP)
• Draft FAA Form 7460 (construction and permanent conditions)
TASK 7 – Final Design
7.1 Review intermediate level review comments from the County; address and respond to comments.
7.2 Based on FAA comments, prepare final CSPP and 7460. Upload the final CSPP and 7460 to the OE/AAA portal.
7.3 Prepare final plans. 16 plan sheets are anticipated.
7.4 Prepare final project manual of bidding documents and specifications.
7.5 Prepare final construction cost estimate.
7.6 Compile final submittal package and submit to the County for advertisement of bids.
DELIVERABLES:
• Final plans (PDF)
• Final project manual of bidding documents (PDF)
• Final engineer’s estimate (PDF)
• Final Construction Safety and Phasing Plan (CSPP)
• Final FAA Form 7460 (construction and permanent conditions)
TASK 8 – Bid Services
8.1 Consolidate and upload bidding documents to Quest CDN bid documents website.
8.2 Provide an advertisement for the public bidding of the project. The County will send the Invitation to Bid to
media outlets for advertisement, and pay advertising fees.
8.3 Provide project coordination with the County throughout the bidding period.
8.4 Review, research, and prepare answers to technical questions during bidding.
8.5 Prepare addenda as necessary to clarify bid documents. Addenda will be distributed by the Engineer. For
scoping purposes this scope assumes two addenda will be prepared. Addenda will be consolidated into one
pdf electronic file and uploaded to the Quest CDN website.
8.6 Coordinate, attend, and facilitate a pre-bid conference for the project at the airport. Prepare meeting agenda,
sign-in sheet. The Project Manager will attend the pre-bid conference.
8.7 The County will facilitate the bid opening and provide the Engineer with copies of all bid packages received.
8.8 Prepare bid tabulation and prepare a Bid Analysis Letter to the Airport for award of bid. It is assumed the
County will issue the Notice of Award letter.
6
DELIVERABLES:
• PDF bid documents for upload to Quest CDN website
• Bid tabulation/Bid Analysis Letter
• Recommendation of Award Letter
EXCLUSIONS:
The following items are excluded from this scope, but as necessary will be included in a subsequent contract task order
for engineering design. Excluded work items include:
• Environmental site investigations and/or NEPA submittal documents
• Cost estimates for building structures
Opinion of Probable Costs:
The contract amount for the East Hangar Sites & Taxilane Preliminary Engineering Site Development Analysis, is set at
$106,430.00 time and expense not to exceed. A detailed fee breakdown schedule is included in the attached Exhibit A.
Kittitas County
By:
Title:
Date:
Century West Engineering Corporation
By:
Title:
Date: ______________