Request for Proposals for Aerial Digital Phot.doc

Request for Proposals

For

Digital Orthophotos

Burke County, GA

Submittal Deadline

Wednesday, December 4th, 2024 5:00 p.m. EST

BURKE COUNTY, GEORGIA

REQUEST FOR PROPOSALS

TITLE: Digital Orthophotography Project

ISSUE DATE: October 29, 2024 ISSUING AGENCIES: Burke County Board of Commissioners

The Burke County Board of Commissioners is accepting bids for the Digital Orthophotography Project. Sealed Proposals will be received until 5:00 p.m., on December 4th, 2024 for furnishing services described herein. Any proposal received after the scheduled deadline will not be accepted and will be returned unopened to the sender. Proposals will be opened at 5 P.M. on December 5th, 2024, in the Board of Commissioners Meeting Room in the Burke County Courthouse at 600 N Liberty Street, Waynesboro, Ga. 30830.

SEND ALL PROPOSALS DIRECTLY TO THE ADDRESS AS SHOWN BELOW:

Burke County Board of Assessors

Attn: Phillip W. Wren, Chief Appraiser

P.O. Box 46

Waynesboro, Ga. 30830 IMPORTANT NOTE: Indicate the RFP is “For Digital Orthophotography Project” on the front of each sealed proposal envelope or package. CDs included with the proposal should be clearly labeled with the proposing firms’ company name and the project title.

General Information

The Burke County Board of Commissioners is soliciting proposals from qualified aerial mapping contractors for the production of color digital orthophotography.

Sealed proposals will be received until 5:00 p.m., on December 4, 2024 for furnishing services described herein. Any proposal received after the scheduled deadline will not be accepted and will be returned unopened to the sender.

The selected contractor will be responsible for all processes, labor, materials, equipment and management necessary to provide the deliverables specified for the project.

The award will be made to the Contractor who submits the proposal that is in the best interest of Burke County. Proposals will be evaluated based on the experience of the Contractor, the capability of the Contractor, the cost of the project, and other factors deemed by the Board to be in the best interest of Burke County. The Board reserves the right to reject any or all proposals at its sole discretion or to waive any specific irregularities or formalities in order to accept a proposal deemed to be in the best interest of Burke County.

All bidders should include recent references of those Counties or other entities for which the Bidder has performed similar projects. Included with each reference should be current contact names and phone numbers. The Board will diligently check each reference to insure the Bidder awarded the Bid is capable and qualified to deliver a finished orthophotography project in a professional and timely manner.

The specifications below indicate both requirements.

Scope of Work

The imagery shall capture all county-wide areas at 6” GSD orthos and 6” GSD obliques.

The photography will be flown no later than March 15th, 2025, with (leaf-off) at 6” GSD covering the entire county.

The NAD83, State Plane, Georgia East, FIPS 1001 (US Survey Feet), projection will be used to generate digital ortho photography 6” GSD (ground sample distance) covering approximately 827 number of square miles of area (Area Estimated). It will be the vendor’s responsibility to determine actual square miles to be flown.

The precise components in the selected aerial flyover shall include:

· 6” GSD oblique and orthogonal photography

· Images captured with a small-format camera

· Oblique and ortho web viewer for image hosting should include:

· Measurement capabilities including height, distance, area, etc.

· Overlay all county’s GIS data with ability to search, view, and identify

· Ability to annotate text, circles, lines, etc.

· The user shall be able to pan from one image to any adjacent image.

· Image print and export functions

· Hosting of county’s 2011, 2016, and 2020 oblique imagery

· Delivery of all final products shall be no later than May 30th, 2025

· A mobile app to view GIS data, oblique and ortho imagery

· Deliverable should include integration with ArcGIS Pro, E-911, qPublic, and WinGAP

· Physical delivery of orthophotos in GeoTiff and MrSID formats

· The best available DEM should be used to ortho-rectify the imagery

· Three years maintenance and support for imagery

· Disaster response imagery

· Access to surrounding county imagery

· In-field Technical Manager and training

· Agreement for technical support and training included with the package

The Burke County Commission will select the firm deemed in the judgment of the Commission to be the most qualified, best suited, and who best meets the requirements of the Commission among those submitting Proposals. This RFP shall in no manner be construed as a commitment on the part of the Commission to execute a contract, to pay any cost incurred in the preparation of proposals to this request, or to procure or contract for any services. The Commission reserves the right to reject any proposal, which in its opinion does not have adequate qualifications. Furthermore, the organization reserves the right to reject any or all proposals and to advertise for new proposals for any reason(s) or for no reason(s).

SAMPLE RFP OUTLINE

Equipment and Facilities

List Equipment and Facilities Work Examples Project References Relevant Experience in Georgia or other localities Technical Response Project approach Task 1: Discuss Survey Ground Control Task 2: Acquire Digital Photography Task 3: Discuss Aero Triangulation and Elevation Model Development Task 4: Develop Digital Orthophotography for Pilot Area Task 5: Process Digital Orthophotography for Entire Project Area Task 6: Develop Digital Orthophotography for Entire Project Area Project Management and Communications Financial Background Financial Stability Arbitration Statement Project Costs Project Schedule Proposal Deviations Additional Information Digital Examples Camera Calibration Report Insurance Certificate Personnel Resumes

Acquire and Process Digital Photography

DEVELOP DIGITAL ORTHOPHOTOGRAPHY

Overview: Vendor will produce 0.0.6-foot pixel resolution color orthophotography for the entire County

· Vendor will utilize the central most portion of each image in the output mosaic where building lean is least prominent.

· For a quality product, Vendor will orthorectify each image as opposed to every second image.

· All mosaic source images should have smooth, consistent intensity and color properties across the entire mosaic.

· Clip image files from this virtual mosaic into individual files according to the project digital sheet layout structure and naming schema.

· Visually inspect final ortho tiles for mosaic misalignments and radiometric adherence to the benchmark sample scan.

· Delineate image irregularities such as image warping, image color balance, or image-vector misalignment with polygons using ESRI products.

· Imagery will be resampled to a 0.6-foot pixel resolution and delivered in a single image mosaic of the County in MrSID format.

· All imagery will be delivered in the State Plane Projection, NAD83 Georgia East, US feet.

· One copy of a digital sheet index

· Burke County will receive one copy of its own dataset on DVD.

Accuracy

The technical approach should incorporate an understanding of Burke County’s need for 0.6-foot pixel resolution color orthophotography. The vendor’s proposal should discuss in Basic English how the vendor plans to meet the appropriate Accuracy Standards of the project.

Payment Schedule

Total Orthophotography $

Questions may be directed to me at the number below.

Yours truly, Phillip W. Wren

Chief Appraiser

Burke county Board of Assessors Phone 706-554-2607