Digital_Orthophotography_and_LiDAR_Data_Acquisition.pdf

RFP #26044

Greenville County Issue Date: October 31, 2025

Procurement Services Division Opening Date: November 14, 2025

DIGITAL ORTHOPHOTOGRAPHY AND

LIDAR DATA ACQUISITION

RESPONSES MUST BE SUBMITTED ELECTRONICALLY TO:

https:// procurement.opengov.com/portal/greenvillecounty/greenvillecounty

Robert Brewer, NIGP-CPP, CPPO, CPPB

Procurement Services Division Director https://secure.procurenow.com/portal/%7bproject.government.code%7d

Greenville County

Digital Orthophotography and LiDAR Data Acquisition

I. Public Notice II. Introduction

III. Scope of Work IV. Instructions to Offerors V. General Information

VI. Insurance VII. Evaluation Phases

VIII. Bonds IX. Terms and Conditions X. Sample Contract

XI. Vendor Questionnaire

Attachments:

A - COG Sub W9

B - Sample Contract

C - CountyMap

D - Pricing Form

E - TileIndex

F - TileIndex

G - TileIndex

H - TileIndex

I - TileIndex

J - TileIndex

K - TileIndex

Title: Digital Orthophotography and LiDAR Data Acquisition

1. Public Notice

Greenville County is soliciting sealed proposals in response to Digital Orthophotography and LiDAR Data

Acquisition, subject to the conditions and all provisions set forth herein and attached. Sealed proposals will be received through the County’s online procurement portal located at https://procurement.opengov.com/portal/greenvillecounty until Friday, November 14, 2025, 3:00 pm, then publicly opened. The goods and/or services must be furnished as described and specified herein and submitted to Greenville County.

All inquiries regarding this proposal shall be submitted no later than Wednesday, November 5, 2025, 5:00 pm via the County’s online procurement Portal, located at https://procurement.opengov.com/portal/greenvillecounty. Please note the deadline for submitting inquiries. All answers to inquiries will be posted on the County’s online procurement Portal. Offerors may also click “Follow” on this proposal to receive an email notification when answers are posted. It is the responsibility of the Offeror to check the website for answers to inquiries.

https://secure.procurenow.com/portal/greenvillecounty

2. Introduction

2.1. Summary

The County of Greenville is seeking sealed proposals from vendors to provide digital orthophotography and LiDAR data acquisition services. This will be a one (1) year contract with four (4) optional annual renewals.

2.2. Background

Greenville County, South Carolina is soliciting proposals to obtain annual natural color digital orthophotography and LiDAR data for the 2026 through 2030 flying seasons. A primary use of these datasets is to detect changes in building structures and other features throughout the County. The final ground resolution of the digital orthoimagery shall be six inches per pixel and delivered in uncompressed

TIF/TFW format. LiDAR deliverables will include a classified point cloud delivered in LAS specification 1.4-

R15 format and a LiDAR derived DEM for orthorectification, delivered in TIF or similar raster format.

For 2026 and 2029, the County may elect to participate in statewide orthoimagery projects. Only LiDAR deliverables will be required for any year the County acquires imagery through a statewide project.

The basic specifications as described below are designed to obtain the above project deliverables using generally accepted, standard methods and equipment. The Responder’s primary proposal must address the specifications contained herein and any exceptions or deviations should be clearly specified.

Sample data supplied by the Responder from previous projects are optional with the proposal. If sample data are provided, they must have been produced using the same project specifications as those contained in the Responder’s response to this RFP. Media must be clearly labeled, describing pertinent characteristics of the sample data.

If a Responder wishes to propose alternative methods for obtaining comparable products and accuracies, a secondary proposal should be submitted. The Secondary Proposal should be clearly labeled as such and included as an attachment to the Primary Proposal. The Secondary Proposal should include a step-by-step description of the methods and equipment to be utilized as well as the Responder’s experience providing similar deliverables. Additionally, sample data should be provided, clearly demonstrating that the alternative methods produce comparable or superior products as compared to the products produced using methods described in this RFP. A cost break-down for each project task and deliverable shall also accompany the Secondary Proposal.

2.3. Contact Information

Bob Brewer

Procurement Director

301 University Ridge

Suite N-2400

Greenville, SC 29601

Email: rbrewer@greenvillecounty.org

Phone: (864) 467-7200 mailto:rbrewer@greenvillecounty.org tel:(864)467-7200

Department:

GIS

2.4. Timeline

Release Project Date October 31, 2025

Question Submission Deadline November 5, 2025, 5:00pm

Proposal Submission Deadline November 14, 2025, 3:00pm

Review of Proposals November 14 - 26, 2025

Tentative Date of Award November 26, 2025

Contract Negotiations November 26 - December 12, 2025

Issue Notice to Proceed December 12, 2025

3. Scope of Work

3.1. Project Schedule

The County’s primary objective is to acquire new data that meet or exceed the specifications defined in this document. All data deliverables will be subjected to a proven QA/QC process to ensure compliance with project specifications. Both, data quality and timely delivery are critical project success factors. Final orthophotography and LiDAR project deliverables must be received by April 15th each year. Respondents shall include a project schedule in their proposal showing all tasks from project planning through final delivery for all project deliverables.

In the event the Contractor fails to deliver all project work by the completion date set forth in the project schedule, then Contractor shall pay the County the sum of Two Hundred and 00/100 ($200.00

USD) Dollars per calendar day for each and every calendar day of inexcusable delay if so requested by the County. Any sums due and payable hereunder by Contractor shall be payable, not as a penalty, but as liquidated damages applicable to such delays and withheld from any amounts otherwise due

Contractor.

3.2. Project Area

Greenville County is located in the northwest portion of South Carolina. The topography varies from gentle slopes in the southern portion of the County to relatively steep terrain in the northern mountains. The County encompasses 795 square miles and had an estimated population of 570,745 in

2024 (U.S Census Bureau, 2024).

The geographic extent for the project is shown on the map located in the Attachments section of the RFP.

The project area for orthophotography and LiDAR derived products consists of 1100, 5000’ x 5000’ tiles or 986 square miles. Orthophotography and LiDAR deliverables must be continuous over the entire project area and must completely fill all tile boundaries.

A map of the project area is available at is https://gcscgis.maps.arcgis.com/apps/mapviewer/index.html?webmap=c5f1baeb03e740868d742729f6

62c840. Shapefiles of the tile index can be found in Attachments F through L in the Attachments section of the RFP. They are as follows:

Attachment E - TileIndex.cpg

Attachment F - TileIndex.dbf

Attachment G - TileIndex.prj

Attachment H - TileIndex.sbn

Attachment I - TileIndex.sbx

Attachment J - TileIndex.shp

Attachment K - TileIndex.shx https://procurement.opengov.com/portal/greenvillecounty/projects/210592/document?section=1973264 https://gcscgis.maps.arcgis.com/apps/mapviewer/index.html?webmap=c5f1baeb03e740868d742729f662c840 https://gcscgis.maps.arcgis.com/apps/mapviewer/index.html?webmap=c5f1baeb03e740868d742729f662c840 https://procurement.opengov.com/portal/greenvillecounty/projects/210592/document?section=1973264

If there are any issues downloading the files in Attachments, please contact the Procurement Services

Office.

3.3. GIS Hardware/Software

Greenville County uses ESRI’s ArcGIS/ArcSDE/ArcGIS Server software running on Windows/Intel hardware. The primary operations software is ArcGIS Pro, Version 3.5.x accessing enterprise geodatabases residing in SQL Server 2017. All data deliverables must be in a format compatible with and useable in the County’s GIS environment.

3.4. Project Requirements and Procedures

Data collection, processing, testing, and accuracy reporting for this project shall be conducted in general compliance with ASPRS Positional Accuracy Standards for Digital Geospatial Data, Edition 2, Version 2

(2024). Final data deliverables must be continuous over the entire project area and must completely fill all tile boundaries and project area boundaries as applicable. Data gaps or voids are unacceptable.

Project control

The use of airborne GPS (ABGPS), an inertial measurement unit (IMU), and ground control is required. The

County will supply 45 photo-identifiable ground control points distributed throughout Greenville County as shown in Attachment C. These control points consist of coordinates, elevations, and field reference photos acquired in December 2017 under the supervision of a Professional South Carolina Land

Surveyor. The South Carolina Geodetic Survey’s VRS and Topcon GRS1 GNSS/GPS receivers were used to obtain an accuracy of three centimeters. The control points and reference photos will be provided to the selected Vendor only.

The horizontal reference for the project will be NAD 1983 (2011), S.C. Single Zone State Plane Coordinate

System, with units expressed as International Feet (1 foot = 0.3048 meters). The vertical reference shall be NAVD 1988 (GEOID18) with units expressed as US Survey Feet (1 foot = 0.3048006 meters).

Aerial Photography

Environmental Conditions

It shall be the responsibility of the Vendor to obtain leaf and snow free vertical aerial photography between February 1 and March 8 of each flying season. Photography shall be acquired when skies are clear, free from turbulence, wind shear, and excessive smoke or haze. The ground shall be free from standing water, and/or snow. Photography shall be flown only during that portion of the day when the sun is 33 degrees or more above the horizon, generally between the hours of 10:00AM and 2:00 PM, Eastern Standard Time. Cloud or cloud shadows shall not appear on more than 5 percent of the area in any one photograph nor shall photography contain objectionable shadows caused by relief or low solar altitude.

Flying Height and Ground Sample Distance (GSD)

The flying height and GSD shall be appropriate to meet or exceed the horizontal accuracy specified in Positional Accuracy and Image Resolution (p.11) and produce a final orthophoto image resolution of six inches on the ground. Additionally, a flying height shall be selected that avoids noticeable atmospheric degradation of image quality.

Respondents must provide flying height and ground sample distance (GSD) in the proposal.

Aircraft/Camera/Sensor System

All photography will be acquired using a tested and calibrated large format strip or frame-based aerial sensor with 4-band direct image capture capability.

Respondents must specify, in detail, the brand and specifications of the camera system to be used along with a description of the aircraft, sensor mount, inertial measurement unit (IMU), airborne

GPS and antenna, camera/sensor hardware, focal length, the bit depth per color channel captured by the sensor, and a manufacturer’s calibration report for the sensor system.

Flight Plan

Flight lines and, if applicable, individual exposure stations shall be spaced to ensure sufficient side and end overlap to provide full stereoscopic coverage of the entire project area. In particular, overlap shall be sufficient to minimize excessive building lean. If a frame based camera system is used, end lap shall be greater than or equal to 60 percent and side lap shall be greater than or equal to 35 percent. While collecting imagery, crab of the sensor shall not exceed three degrees measured with respect to both lines of flight. This includes relative crab between any two successive exposures. Tilt of the sensor from a vertical position shall not exceed three degrees, nor shall it exceed five degrees between successive exposure stations. Average tilt over the entire project shall not exceed one degree.

If a “push broom” type sensor is used, the maximum speed over the ground shall not exceed manufacturer’s guidelines. Visible image smear is not acceptable.

Respondents shall include an Image Collection Plan in their proposal which contains a map of flight lines and the project area and specifies the flying height and speed of the aircraft over the ground, ground sample distance, and image overlap.

Re-flights

Raw imagery shall be reviewed by the vendor as soon as possible subsequent to a completed flight mission. Within three days of a flight mission, the Vendor shall confirm, in written form, compliance with aerial imagery collection specifications in the Aerial Photography section (p.

7). Imagery that does not meet specifications shall be corrected by the Vendor at no additional cost to the County. Replacement imagery shall be acquired within one week of the original flight

(provided environmental conditions exist as specified in the Environmental Conditions section (p.7), using the same camera/sensor system.

Analytical Aerial Triangulation

Densification and extension of ground survey control will be accomplished by fully analytical aerial triangulation (FAAT) software and correctly applied soft-copy photogrammetric methods. Only experienced photogrammetrists shall be employed on this project. The Vendor is responsible for designing an aerial triangulation (A/T) process that will meet or exceed accuracy requirements specified in the Positional Accuracy and Image Resolution section (p.11).

Upon completion of aerial triangulation work, the Vendor will prepare and submit a triangulation report to the County that includes triangulation adjustment output showing residuals and accuracies achieved. This report should be provided in electronic form and must be submitted prior to beginning digital orthophoto production.

The Responder shall include a description of the A/T process and software to be used in the proposal.

Aerial LiDAR Survey

General

Aerial LiDAR collection, processing, testing, and accuracy reporting shall be conducted in general compliance with ASPRS Positional Accuracy Standards for Digital Geospatial Data, Edition 2, Version

2 (2024).

Sensor Requirements

The sensor must be designed and manufactured for aerial LiDAR survey work and coupled with an

IMU and AGPS. It must be capable of detecting multiple discrete returns per pulse with a minimum of 4 plus the last return.

Responder must provide a detailed description of the procedures that will be used to calibrate the system and prevent AGPS/IMU drift inaccuracies.

Environmental Conditions

LiDAR data shall be collected between January 1 and March 8 of each flying season (leaf-off). Data shall be acquired when skies are free of clouds and fog between the aircraft and the ground. The ground shall be free from snow, standing water, or any type of surface inundation. Flights should not occur during periods of heavy smoke, haze, excessive cross winds, or turbulence.

Flight Plan/Pulse Density

First return data shall have a Nominal Pulse Density (NPD) of 2 points/m2 or greater for the geometrically usable part of swaths, excluding acceptable data voids. The scan angle should not exceed a field of view (FOV) of 50 degrees (+/- 25 degrees from nadir). Swath overlap must be twenty percent or greater to insure there are no data gaps between usable portions of swaths.

Any deviation from the above specifications shall be fully described and supported in the Response.

Data Voids

First return gaps in the point cloud, within a single swath, and greater than 8 square meters (4 x

ANPS)2 are not acceptable unless caused by bodies of water, areas of low near infrared reflectivity, or unless the gaps are appropriately covered by adjacent swaths.

Spatial Distribution of Points

LiDAR collection shall be planned and executed to produce an aggregate first return point cloud that approaches a uniform and regular distribution, free from clustering.

Point Cloud Specifications

The raw point cloud shall be classified per the standard ASPRS classes shown in Table 1.

Table 1. Required LiDAR point cloud classes.

Value Description

1 Unclassified

2 Ground

5 High Vegetation

6 Building (all)

17 Bridge Deck (limited to ~18 County supplied bridges)

64 Existing Building

65 New Building

All non-withheld points shall be properly classified and no points in the classified deliverable may remain in class 0. The classified point cloud shall be referenced by South Carolina State Plane

Coordinates as specified in Project Control (p.6). The point record format shall be fully compliant with ASPRS LAS Specification 1.4-R15, including all standard attributes (intensity, return number, georeferencing info, adjusted GPS time, etc.). Point classification shall be consistent over the entire project area with no noticeable variation in the character, texture, or quality of the classification between tiles, swaths, lifts, or other non-natural divisions.

Positional Accuracy

The vertical accuracy of the point cloud shall meet or exceed ASPRS Standards (2024) for the 15 cm

Vertical Accuracy Class as shown in Table 2.

Table 2. Required Vertical Accuracy

Absolute Accuracy Data Internal Precision

NVA RMSEV

(cm)

VVA

RMSEV (cm)

Within-Swath

Smooth Surface

Precision Max Diff

(cm)

Swath-to-Swath Non-

Vegetated RMSDZ

(cm)

Swath-to-Swath Non-

Vegetated Max Diff

(cm)

15.0 As found 9.0 12.0 24.0

The vendor shall calculate NVA by withholding a portion of the County supplied control points from

LiDAR georeferencing and use only these points for accuracy testing. Vertical accuracy shall be reported as RMSEV. Note, the vendor is not required or expected to supply additional control or checkpoints.

Horizontal accuracy, reported as RMSEH, should be closely aligned with the estimated values presented in Table B.8 of the ASPRS Standards for the actual flying height used in this project. Responders must clearly state the expected horizontal accuracy that will be achieved in their response to this RFP.

The Responder shall provide a detailed description of the LiDAR planning, acquisition, processing, and quality assurance process, including a discussion of each of the above requirements.

Digital elevation Model (for 2026 only)

Methods

A digital elevation model (DEM) for ortho image rectification shall be developed from the LiDAR mass points at a density level necessary to support final orthoimagery production. Hydro-flattening is not required for this DEM as it is intended to be used only for orthorectification.

Accuracy

The vertical accuracy of the DEM shall be sufficient to obtain the required accuracy of the final orthoimagery specified in the Positional Accuracy and Imagery Resolution (p.11).

The Responder shall provide a description of the process used to produce the ortho DEM including quality control procedures, vertical accuracy that will be achieved, and final grid size.

Digital Orthophotography

Digital orthophotography processing, testing, and accuracy reporting shall be conducted in general compliance with ASPRS Positional Accuracy Standards for Digital Geospatial Data, Edition 2, Version 2

(2024).

Positional Accuracy and Image Resolution

Horizontal accuracy of the orthoimagery, expressed as RMSEH, shall meet or exceed the ASPRS

Standards (2024) for the 15 cm Horizontal Accuracy Class as shown in Table 3.

Table 3. Required Horizontal Accuracy

RMSEH (cm) Orthoimage Mosaic Seamline

Maximum Mismatch (cm)

15.0 30.0

The final ground resolution of the orthoimagery shall be six inches per pixel.

Image Rectification

The rectification process shall involve the solution of the appropriate photogrammetric equations for each pixel in the output image. It will not be permissible to solve photogrammetric equations at anchor points and then warp the content of the original image between anchor points.

The interpolation (or resampling) of intensity values from the input image to the output image shall be accomplished using the cubic convolution algorithm or equivalent. Use of nearest neighbor or bilinear algorithms is not acceptable.

Image Quality

Brightness

Image brightness shall be represented by 256 intensity levels of red, green, and blue. There shall be no areas of an orthophoto where the process was incomplete due to image gaps or “hot spots” due to overexposure.

Radiometry

Image brightness, contrast, and color balance shall be adjusted to be visually consistent countywide. There shall be no visual edge or seam between adjacent imagery. Radiometric adjustments should not compromise the accuracy, clarity, or resolution of the orthoimagery.

Mosaicking/Edge Matching

Mosaicking shall be accomplished using both automated and interactive methods. The sole use of fully automated methods is not acceptable. Mosaic join lines shall not cross through buildings, bridges, or other structures considered a visual entity and should follow features such as roads, tree lines, water bodies, etc. when possible. Features on the ground, such as roads and railroads, along the seam of two adjacent images, should edge-match with a feature displacement of less than 30 cm. Neither positional accuracy nor image quality shall be affected by interior or edge mosaicking. Acceptable mosaicking must produce quality orthoimagery of consistent tone, brightness, and contrast and must do so without obvious join lines.

Shadows

Shadows that result in 30 percent or more of ground features to be un-interpretable, in shadow areas, are not acceptable.

Acceptance Standard

Prior to undertaking full digital orthophoto production, the Vendor shall furnish the County with sample digital images to evaluate and accept as examples of overall image quality. The County will select one image, which will become the standard to which all subsequent digital orthophotos will be compared for acceptance/rejection relative to image quality.

Inherent Quality Issues

Imagery should be free of moderate to severe ghosting and excessive distortion of elevated surfaces.

The County will provide the selected vendor with a file geodatabase containing 18 bridges and overpasses that must appear distortion free in the final imagery.

Describe how image quality issues such as bridge displacement, shadow contrast, and other undesirable characteristics of digital orthophotography will be addressed in the proposal.

3.5. Deliverable Product Specifications

All data products shall be referenced to the South Carolina State Plane Coordinate System, as specified in Project Control (p.6).

All final data products shall be delivered as complete, countywide datasets (no incremental deliveries of final deliverables). Final orthoimagery and LiDAR data deliveries must be received by April 15th of each contract year.

Aerial Imagery Collection Report

Within three days of completing any photo mission, the Vendor shall submit a quality control report to the County, confirming compliance with aerial imagery collection specifications as specified in Aerial Photography (p.7). This report should be submitted as a PDF.

Airborne GPS (ABGPS)

At the conclusion of photography and ABGPS data acquisition, the Vendor shall submit an

Airborne GPS Project Report. The report shall include a narrative of the GPS data collection and processing methods, results, quality control statistics, and summary of the overall quality of the sensor coordinates. The report will also include an ESRI File Geodatabase containing points of the

GPS coordinates collected. For each point, the ABGPS feature class table will include the date, time of day, flight line number, the x coordinate, the y coordinate, and the altitude, per the database design per Section 3.9 Physical Database Design. The report shall be submitted in electronic format.

Aerial Triangulation Report

Upon completion of all aerial triangulation work, the Vendor shall prepare and deliver an aerial triangulation report as specified in Analytical Aerial Triangulation (p.8). This report must be submitted prior to beginning orthoimagery production and should be submitted as a PDF.

LiDAR Acquisition and Accuracy Report

Prior to point classification, the Vendor shall submit a post-survey report describing absolute and relative vertical accuracy achieved, horizontal accuracy, details of system calibration checks, actual sensor parameters used, and flight line trajectories. The report should be submitted as a

PDF.

Classified LiDAR Point Cloud

The Vendor shall deliver the processed LiDAR Point Cloud classified as shown in Table 1 in Point

Cloud Specifications (p.9). These data shall be fully compliant with ASPRS LAS Specification, v1.4-

R15 including all standard attributes. The entire LiDAR dataset shall consist of 1100 LAS files, one file completely covering each of the 1100, 5,000 ft. x 5,000 ft. tiles that define the project area. Tile names from the County supplied tile index shall be used to name each LAS file.

Ortho DEM

For 2026 only, the Vendor shall deliver the raster digital elevation model that was used for ortho-rectification in TIFF or another standard format as agreed upon with the County. The final grid size for the DEM will be determined by the Vendor and the County.

Digital Color Orthophotography

The Vendor shall deliver 24-bit, natural color digital orthophotography in ArcGIS 10.9.x readable

TIF format with TFW world files. The entire image dataset shall consist of 1100 TIFFs, one TIFF completely covering each 5000ft x 5,000 ft tile per Attachment C located in Attachments. The ground resolution of the imagery shall be six inches. Tile names from the County supplied tile index shall be used to name each TIF and TFW file.

Along with the orthophotography, the Vendor shall provide a file geodatabase feature class containing the mosaicking seam lines.

3.6. Quality Control and Product Acceptance

Quality Control

Greenville County retains the sole right to determine Contract adherence for quality control purposes. If, in Greenville County’s judgment, the Vendor is in breach of the quality control requirements, suspension of file production may be required until such time as the Vendor can determine that such problem(s) have been corrected.

Describe, in detail, the quality control process that will be used to verify the accuracy, completeness, consistency, data structure and overall integrity of the final products in all phases of data development. State the procedures that will be used to detect and correct problems immediately prior to shipping data to the County.

It is the responsibility of the Vendor to detect and correct data errors, according to Project Data

Acceptance Criteria prior to shipment of any products to the County. This is imperative to insure timely availability of data.

The County may conduct a visit to the project site at any time throughout the duration of the project.

Product Acceptance

All deliverable products will be checked within 15 business days of delivery to the

County. Responders shall specify turnaround time required for redelivery of products following the receipt of valid edit calls from the County.

The Vendor must meet the following ortho-imagery requirements.

o Edge-matching – Features on the ground, along the seam of adjacent images or delivery tiles, should be displaced less than 30 cm.

o DTM/DEM Errors - Wavy linear features and blurred or stretched imagery of ground features (such as distortion of parking lot stripes) are not acceptable.

o Shadows – Shadows that result in 30 percent or more of ground features to be un-interpretable, in shadow areas, are not acceptable.

o Brightness, Contrast, and Color Balance – All delivered imagery should be the same visually as the reference sample selected per Brightness (p.11).

o Precision – All data shall be captured and delivered using double precision where applicable.

o Digital file format – Unless stated otherwise in this RFP, the Vendor shall provide all raster data in uncompressed TIF/TFW format, all LiDAR data in LAS v1.4-15 format, and all vector data in File Geodatabase format.

o Exchange Media - The County in consultation with the Vendor will determine specific media and procedures to be used. Labels will be affixed to delivery media and will include the date, a unique identification number, and a complete listing of contents.

The County will subject delivered products to a series of QA/QC inspections including the following.

o Mounting, manipulation, and display of data files on the County’s GIS. (Deliverable products that are incompatible with or inoperative on the County’s GIS will not be accepted).

o A thorough visual review of imagery for edge-matching, excessive ghosting, brightness, shadows, contrast and other quality criteria.

o Field checks to ensure data meets vertical and horizontal accuracy standards.

o Automated QA/QC routines to ensure data content and attribute accuracy.

If the number and character of errors detected by the County during the quality review is substantial, the County may reject the entire shipment without completing the review. The

County will notify the Vendor of the rejected status of the shipment, and the Vendor must check and correct all data in the project area prior to re-delivery.

Completion of any required corrective actions shall not affect the Vendor’s production schedule. Payment for work will not be authorized until the County has accepted the products. The County Project Manager will notify the Vendor of the acceptance status within 15 business days of delivery.

3.7. Materials/Assistance Provided by the County

The County shall be responsible for providing the following items to the Vendor.

• Project tile index.

• Ground control points and field reference photographs.

• Current building polygons.

• Bridge and overpass locations requiring image correction.

• Timely project communications.

3.8. Ownership of Materials

All materials produced as a result of this project including but not limited to raw aerial imagery, raw

LiDAR point clouds, aerial triangulation data, terrain and elevation models, and control data shall become the property of Greenville County. The County may request that the Vendor store these materials at the Vendor’s facility at no charge, however, any and all materials shall be returned to the

County upon written request.

3.9. Physical Database Design

General Information

All feature classes share the following characteristics:

Projected Coordinate System South Carolina State Plane, NAD 1983(2011), FIPS 3900, Intl Feet (1 FT = 0.3048

M), WKID 6570

Vertical Coordinate System NAVD 1988 Height, U.S. Survey Feet (1 FT =1200/3937 M), WKID 6360

Spatial Domain

MinX

MaxX

MinY

MaxY

MinZ

MaxZ

MinM

MaxM

-122,907,600.00

2,955,145,078,416.49

-92,800,700.00

2,955,175,185,316.49

-100000

22518043072938.824

-100000

22517998036852.477

XY Resolution 0.000328100656201312

Z Resolution 0.00250000500001

M Resolution 0.0025

XY Tolerance 0.00328100656201312

Z Tolerance 0.0250000500001

M Tolerance 0.025

XY Cluster Tolerance 0.0032810066

Default values are indicated in bold text, otherwise the default for character attributes is null and the default for numeric attributes is 0. All character attributes are upper case.

Feature Class:

CON_ABGPS2020

Geometry Type: Point

Description: This feature class contains the airborne GPS points for

Orthophotography Projects.

Feature Class Attribute Table

Field Name Definition

Default Value Domain or

Subtype

Source

OBJECTID Object ID System

SHAPE Geometry System

User-Defined Fields

ID Text,20

TIME Date

DATE Date

FLIGHTLINE ShortInt,5

XCOORD Double,16,6

YCOORD Double,16,6

ALTITUDE Double,8,3

ISOURCE ShortInt,5 ISOURCE

ID Point identification

TIMEDATE Time and date stamp in Universal Coordinated Time

FLIGHTLINE

Flight line number.

XCOORD South Carolina State Plane Easting (NAD 1983 (2011), International

Feet)

YCOORD South Carolina State Plane Northing (NAD 1983(2011), International

Feet)

ALTITUDE Height above MSL of the GPS receiver (aircraft)

ISOURCE Information Source of Feature

30 - 3D Imaging/Spectrum NC

31 - Analytical Surveys, INC

32 - City of Greenville

33 - Greenville County

34 - Other agency

35 - Kucera

4. Instructions to Offerors

4.1. Pre-Proposal Meeting

A Pre-Proposal meeting is not scheduled for this project.

4.2. Pricing

Vendors shall include pricing using the Pricing Form located in the Attachments section of the RFP.

Pricing must be based upon payment in thirty (30) days. Discounts for payment in less than thirty (30) days will not be considered in making award.

Discounts shall be stated in proposals as a percentage. Time in connection with discount offered will be computed from date of delivery of commodities to carrier, when inspecting and acceptance is at point of origin; or date of delivery at destination; or if laboratory inspection is made part of bid, from date of laboratory report.

Unit pricing will govern over extended pricing, unless stated otherwise. Pricing shall include packing.

Unless indicated by County, pricing must be firm.

4.3. Bonding

A Bid Bond is not required for this project; however, Performance and Payment Bonding will be required for the contract. See Bonds section for the requirements.

4.4. Statement of Qualifications

Vendor shall include the following with their response:

A. Overview of company background.

B. Corporate/individual qualifications and experiences, including certifications.

C. List of at least three (3) references including names, addresses, and telephone numbers of current or previous customers. Vendor should include any South Carolina governmental entity reference.

D. An executive summary describing the major facts or features of the proposal, including an overview of the proposed methodologies, and other conclusions, assumptions, and recommendations the Responder desires to make. Any procedures or technologies that the

Responder believes to be unique to his/her company should also be described. The executive summary shall not exceed two pages in length.

E. Information requested in various sections of this document, including detailed descriptions of proposed methods to accomplish each project task and produce project deliverables. Include a detailed description of QA/QC procedures to be used in this project.

F. A description of the Responder’s previous experience successfully completing similar projects. Include references for three (3) similar projects and resumes of all key and supporting https://procurement.opengov.com/portal/greenvillecounty/projects/210592/document?section=undefined personnel to be employed on the project. Specify the total number of key and supporting personnel currently employed by the company to produce digital orthophotography, LiDAR, and

DTM data.

G. Existing workload, including the number of current and pending projects. Describe the scope and magnitude of each project.

H. List any sub-contractors to be employed on this project. Include a description of the qualifications of each sub-contractor and the percentages of the cost and hours of work to be performed by each.

I. A detailed project schedule from initial planning through delivery of final products. For scheduling purposes, assume a start date of January 5, 2026, and a final delivery date of April

15, 2026, for orthophotography and LiDAR.

J. The location of the Responder’s office where all project work will occur. If the project work will occur in more than one location, list all locations where project work will occur, including the locations of any sub-contractor’s facilities. The County requires work on this project to occur within the Continental United States.

K. A detailed description of all aircraft, aerial cameras, computer hardware, computer software, and other equipment to be used on this project.

L. Proof of Responder’s ability to secure a 100 percent Performance Bond for this project, proof of insurance, and other requirements specified in Attachment 1, Instructions, Terms, and

Conditions section of this document.

M. Completed the Pricing Form found in the Attachments section of the RPF.

N. Necessary changes, if any, to the Services Agreement (Contract) located in the Attachments section of the RFP. The attached Contract will be deemed acceptable to the selected Vendor unless the Responder includes requested changes in the proposal. If the selected vendor causes a delay in contract negotiations, the County reserves the right to award the project to an alternative vendor.

O. Corporate financial statement for the latest reporting period.

Responders must propose on both components of this solicitation, color digital orthophotography and

LiDAR data. Any proposal that does not fully include the required items listed above will not be considered.

4.5. Submission Procedures and Requirements

A. All submissions must be received by Friday, November 14, 2025 at 3:00 pm. Submissions will not be accepted after the deadline. There will be no exceptions. Responders submitting proposals shall be responsible for all cost of preparing such proposals. Information requested and not received at the time of submission may disqualify the submitted proposal.

B. Responders to this solicitation shall closely examine the specific requirements noted herein and the attached Terms and Conditions. Facsimile transmittals, hard copies, emails or offers communicated by telephone will not be accepted or considered.

C. Proposals shall be organized in the following manner with the subject headings and sequence indicated.

1. Introduction

2. Experience and Past Performance

3. Organization and Personnel

4. Proposed Solution(s)

5. References

6. Pricing, Hourly Rates and Other Fees

7. Other Information Requested

D. License and Permits – The Contractor shall obtain all applicable licenses and permits, and promptly pay all taxes required by the State of South Carolina, and/or Greenville County.

4.6. Inquiries and Addenda

Offerors shall submit all inquiries regarding this RFP via the County’s online procurement Portal, located at https://procurement.opengov.com/portal/greenvillecounty. Please note the deadline for submitting inquiries. All answers to inquiries will be posted on the County’s online procurement Portal. Offerors may also click “Follow” on this bid to receive an email notification when answers are posted. It is the responsibility of the bidder to check the website for answers to inquiries. The County will not be responsible for or bound by any oral instructions made by any employee(s) of the County in regard to this RFP.

Addenda Notification: This RFP represents the most definite statement Greenville County will make concerning information upon which proposals are to be based. Offerors are required to register for an account via the County’s online procurement Portal hosted by OpenGov. Once you have completed the registration, you will receive addenda notifications to your email by clicking “Follow” on this project.

Ultimately, it is sole responsibility of each proposer to periodically check the site for any addenda at https://procurement.opengov.com/portal/greenvillecounty. No addenda will be issued later than five

(5) working days prior to the date for receipt for proposals except an addendum which, if necessary, postpones the date for receipt of proposals or cancels this RFP. Vendors shall acknowledge receipt of all addenda.

5. General Information

A. Proprietary Information – The County of Greenville is a public body and governed by the South

Carolina Freedom of Information Act. Documents submitted to the County relating to this

Solicitation are subject to requirements of the Freedom of Information Act and may be deemed public records.

B. Errors and Omissions – The Responder will not be allowed to take advantage of any errors or omissions in the Request for Proposals. Where errors or omissions appear in the RFP, the

Responder shall promptly notify the County of Greenville in writing of such error or omission it discovers. Any significant error, omission and/or inconsistency in the specifications are to be reported as soon as possible but no later than five (5) days before such time the response is to be submitted.

C. Withdrawal of Proposal – An official representative of a Responder may withdraw a

Responder’s response at any time prior to the proposal submission deadline. Acceptable proof establishing that he/she is the representative of the Responder must be provided.

D. Non-Endorsement – If the County awards a contract, the successful Responder shall not issue any news release or other statement relating to the award or servicing of the agreement which state or imply the County of Greenville’s endorsement of the successful Responder’s services.

6. Insurance

6.1. Insurance Requirements

The contractor is responsible for and must have all required insurance listed below and shall not commence work under the associated contract until it has obtained all insurance required, and the

County has approved such insurance in writing, nor shall the Contractor allow any subcontractor to commence work on its subcontract until all similar insurance required of the subcontractor has been obtained. All insurance policies shall be maintained for the life of the contract.

A. THE COUNTY SHALL BE NAMED AS “ADDITIONAL INSURED” FOR ITS INTERESTon all policies of insurance except Worker’s Compensation, Automobile Liability, and Professional Errors and

Omissions, as regards ongoing operations, products and completed operations, and this shall be noted on the face of the Certificate of Insurance. As a part of the certificate of insurance requirement the contractor shall also include acknowledgement and acceptance of the wavier of subrogation provision granted to Greenville County. This acknowledgement and acceptance should be included in the same section of the Certificate of Insurance that evidences the

“Additional Insured” provision.

B. Certificates for all such policies of insurance shall be provided by the Contractor's insurance agent or broker to the County within 10 working days from the date of Notice of Award.

C. All Certificates of Insurance submitted shall provide on the face of the certificate reference to

County's RFP #RFP #26044.

D. Contractor will provide County a minimum of 30 days advance notice in the event the insurance policies (or an insurance policy) are canceled. Subcontractors approved to perform work on this project are subject to all of the requirements in this Section.

E. Contractor agrees to maintain and keep in force during the life of this Agreement, with a company or companies authorized to do business in South Carolina, the following insurance policies:

1. Comprehensive General Liability:

a. $1,000,000 per occurrence - combined single limit /

b. $2,000,000 general aggregate, to include products and completed operations.

2. Automobile Liability:

a. $1,000,000 per occurrence - combined single limit (Coverage shall include bodily injury and property damage and cover all vehicles including owned, non-owned and hired)

3. Statutory Worker's Compensation:

a. Coverage A - State of SC

b. Coverage B - Employers liability

i. $1,000,000 Each Accident

ii. $1,000,000 Disease, Per Employee

iii. $1,000,000 Disease, Policy Limit

c. Policies shall contain a waiver of subrogation in favor of and/or that applies to

Greenville County, its departments, agencies, boards, employees, and commissions for losses from work performed by or on behalf of the contractor.

4. Umbrella/Excess Liability:

a. $1,000,000 per occurrence over primary insurance

b. $1,000,000 annual Aggregate

5. Professional Liability (Errors & Omissions):

a. Coverage must be written for no less than the following limits:

i. $1,000,000 per occurrence

ii. $1,000,000 aggregate

No deviation from this coverage’s will be accepted unless, in the County’s sole discretion, it is more advantageous to the County, i.e., $1,000,000 - a $2,000,000 or $5,000,000 limit would be acceptable.

7. Evaluation Phases

The proposals will be evaluated on the following criteria. Greenville County reserves the right to interview responders or have demonstrations to this RFP at its discretion. Greenville County will not be responsible for any costs associated with interviews of responders or demonstrations. If interviews or demonstrations are needed, a second phase of the evaluation process may be implemented at the

County's discretion.

No. Evaluation Criteria Scoring Method Weight (Points)

1. Responsiveness to the RFP 0-5 Points 5 (10% of Total)

2. Experience with similar projects of scope and size.

0-5 Points 5

(10% of Total)

3. Costs 0-5 Points 5 (10% of Total)

4. References 0-5 Points 5 (10% of Total)

5. Ability to produce project deliverables in a timely manner and in conformance to project specifications

0-5 Points 5 (10% of Total)

6. Procedures proposed to accomplish project tasks 0-5 Points 5

(10% of Total)

7. Personnel and their experience assigned to the project 0-5 Points 5

(10% of Total)

8. Technical abilities of the respondent 0-5 Points 5 (10% of Total)

9. Proven track record successfully completing similar project on time 0-5 Points 5

(10% of Total)

10. Financial stability of the company 0-5 Points 5 (10% of Total)

8. Bonds

8.1. Performance and Payment Bond:

The successful bidder, within fifteen (15) working days after acceptance of the bidder’s offer by the

County, shall furnish a satisfactory performance and payment bonds in the amount of the total bid price.

The performance and payment bonds must be received by the county prior to issuance of an executed contract and Notice to Proceed. The fifteen (15) working days may be extended upon written approval by the Procurement Director. A copy of the written approval shall be transmitted to the successful bidder stating the terms of any extension. In the event that the bidder fails to deliver to the County

Procurement Services Division the performance and payment bonds in said period of fifteen (15) working days after acceptance of the bidder’s offer by the County, then the bid bond of the bidder shall be retained by the County in its entirety and the award will be withdrawn from the bidder. The successful bidder shall have as surety a corporate surety authorized to act as surety in South Carolina.

The Performance and Payment Bonds will insure that the successful bidder will promptly make payments to all persons supplying labor or materials to the bidder; and shall guarantee to indemnify and save the County, its officers, divisions, and employees harmless from all costs, damages, and expenses growing out of or by reason of the successful bidder’s failure to comply and perform the work and complete the contract in accordance with the specifications in the matter of making, furnishing and/or delivering said work or supplies. The Performance and Payment Bonds will be in effect for one year after completion of the contract.

8.2. Availability of Bonding Agency:

The bonding company must have an agent available to meet with County officials to clarify and explain the County’s responsibility in maintaining the integrity of the bond.

9. Terms and Conditions

9.1. Safety, Health, and Security

Contractor shall be solely responsible for its activities, that of its employees on the site and activities of its consultants, contractors and/or subcontractors for maintaining a safe job site. Contractor’s activities and activities of its consultants, contractors and/or subcontractors shall comply with all local, state, and federal safety regulations and their enforcement agencies. Contractor shall at all times conduct its operations under this Contract in a manner to avoid risk of endangerment to the health and safety of persons and property. The Contractor shall have sole responsibility for implementing its safety and health programs, taking all safety and health precautions necessary and continuously inspecting all equipment, materials and work to prevent, discover, determine and correct any conditions which might result in personal injury, equipment damage or damage to property or the public. Contractor’s safety, health and security programs shall be in compliance with all regulatory requirements and shall furnish accident, incident, injury, and other records and reports required by the Occupational Safety and Health

Administration, State and Local laws, or by the County.

9.2. Response Opening and Award:

Responses shall be publicly opened and only the names of the offerors disclosed at the opening. For

IFBs, the name of the responder as well as the price will be disclosed. However, no decision will be made until Procurement Services and the user Division have had ample time to review each response. Award will be made at the earliest possible date. The County reserves the right to award in whole or in part, by item, group of items, geographic area or by section where such action serves the County’s best interest.

The contract will be awarded to the response that meets the requirements and criteria set forth in the

Solicitation. No response may be withdrawn for a period of sixty (60) days after the opening date.

Submissions will not be accepted after the deadline. There will be no exceptions. By submission of a response, you are guaranteeing that all goods and services meet the requirement of the solicitation during the contract period.

9.3. Rights Reserved by Greenville County:

Greenville County reserves the right to reject any and all responses, any portion thereof, and waive any technicalities. Accordingly, the right is reserved to make awards in the best interest of the County.

Integrity, reputation, experience and past performance will be heavily weighed in response evaluation.

This solicitation does not commit the County of Greenville to award a contract, to pay any costs incurred in the preparation of the response, or to procure or contract for goods or services listed herein.

9.4. Responders Qualification:

Responders must, upon request of the County, furnish satisfactory evidence of their ability to furnish products or services in accordance with the terms and conditions of these specifications. The County reserves the right to make the final determination as to the responder’s ability to provide the products or services requested herein.

9.5.…