HomeMy WebLinkAboutResolution - 2022-R0177 - Amendment No. 1 Contract 15678 with Bohannon Huston - GIS 4.12.22Resolution No. 2022-RO177
Item No. 7.28
April 12, 2022
RESOLUTION
BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF LUBBOCK:
THAT the Mayor of the City of Lubbock is hereby authorized and directed to execute for and
on behalf of the City of Lubbock, Amendment No. 1 to that certain Agreement dated March
23, 2021 for Digital Orthophotographic Project 2021, RFP 21-15678-TF / Contract No.
15678, by and between the City of Lubbock and Bohannan Huston, Inc., and related
documents. Said Amendment is attached hereto and incorporated in this resolution as if fully
set forth herein and shall be included in the minutes of the City Council.
Passed by the City Council on
ATTEST:
Reb ca Garza, City Secr
APPROVED AS TO CONTENT:
Erik Rejino, Assistant City Manager
APPROVED AS TO
City Attorney
April 12, 2022
DANIEL M. POPE, MAYOR
ccdocs/RES.Amendment 1 to Contract 15678 - Bohannan Huston
3.14.22
Resolution No. 2022-RO177
AMENDMENT No. 1
Contract 15678
City of Lubbock, TX
Digital Orthophotography Project 2022
This Amendment No.1 to Digital Orthophotography Project 2021 (Contract No. 15678) is
entered into this 12th day of April , 2022 (the "Effective Date l bdwomthe
City of Lubbock, a Texas municipal corporation (the "City") and Bohannan Huston, Inc. of
Albuquerque, New Mexico (the "Contractor").
WHEREAS, the City has issued a Request for Proposals Digital Orthophotography Project
2021 (RFP 21-15678-TF); and
WHEREAS, the City and the Contractor have previously entered into Contract 15678 dated
March 23, 2021, Resolution No. 2021-R0103 (the "Agreement"); and
WHEREAS, the Contractor desires to continue to perform as an independent contractor to
provide Digital Othophotography, Light Detection and Ranging (LiDAR) data, and other Geographic
Information System (GIS) data., upon terms and conditions maintained in the Agreement; and
WHEREAS, the City and the Contractor hereby desire to further amend said Agreement.
NOW THEREFORE, the City and the Contractor hereby agree to amend the Agreement as
follows:
1) That the Agreement is hereby amended by adding "Exhibit A," Scope of Work, which is
attached hereto; and
2) That "Exhibit B" of the Agreement is hereby substituted and replaced with "Exhibit B,"
Fee Schedule, which is attached hereto.
IN WITNESS WHEREOF, THIS Amendment I executed as of the Effective Date.
CITY OF LUBBOCK, TX:
DANIEL M. POPE, MAYOR
ATTEST:
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RebeLa Garza, City S
CONTRACTOR:
APPROVED AS TO CONTENT:
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Erik Rejino, Assistant City Manager
APPROVED AS TO FO
City A
Contract 15678 - Digital Orthophotography Project 2022
EXHIBIT A
SCOPE OF WORK
1. General Information
1.1. Overview
The Contractor shall provide professional services related to the production of high -resolution,
natural color, digital orthophotography. These products and services include, but are not limited to,
large format frame based digital aerial imagery, project control, ground control, photogrammetry,
aerial triangulation, processing of digital elevation data, processing of orthophotography, and GIS
raster mosaics and webservices tile cache development. These services and products shall conform
to this scope of work procured under Request for Proposals (RFP) for Professional Services, for the
City of Lubbock, Texas Digital Orthophotography Project 2021 under contract 15678. Product
deliverables provided under this Agreement shall meet the technical specifications outlined in this
Scope of Work (Scope).
For services identified in this Scope, the Contractor shall not proceed with any work until written
authorization to begin the project, the "Notice to Proceed", is provided by the City.
The product under this Agreement is described as the acquisition and production of digital
orthophotography, feature collection and feature updates at a date mutually agreed upon by the
Contractor and the City. The project areas are comprised of optional area of interests including the
City of Lubbock, County of Lubbock, and Lake Alan Henry reservoir and connecting pipeline. Figures 1
and 2 show these project areas that may be contracted for digital orthophotography to be produced
with aerial acquisition performed in late spring 2022.
2. Project Control
Project control shall include existing ground control points recovered under the supervision of a
Texas professional registered surveyor. The contractor shall strive to re -target and use control points
established in previous orthophotography and LiDAR projects as applicable. In addition, Airborne
Global Positioning System (AGPS) control and Inertial Measurement Unit (IMU) technology shall be
used as part of the digital capture system.
The contractor should use existing ground control points wherever possible. Should any new control
be required, to the maximum extent possible and practicable, new points should be established
within public properties (i.e. within road right-of-ways). In the event ground control or targets are
needed on private property, the Contractor shall notify and obtain written permission of the
property owner or proper agency prior to placing these ground control targets.
' -- ,ten } n ' -'• � P b f,�
. _
2022 Control Plan [47] n
-- Pipeline Alignment
Q Lubbock City Limitsd--
Flight Plan by AOI _ °--
City AOI -
Pipeline -AOI
LAH AOI
Figure 1 - AOI options for aerial imageryflight
Control will be collected in State Plane, Texas North Central, U.S. Survey Feet, horizontal datum
NAD83 (WKID 2276), and vertical datum NAVD88 using units of U.S. Survey Feet.
The Contractor shall provide the location and identification of all ground control and photo control
points established and used during the flyover in ArcGIS shapefile or geodatabase format. Latex -
based paint shall be the preferred control point marking identification method. Contractor shall
identify any control points placed using panel material.
3. Digital Orthophotography
The Contractor shall produce three-inch (3") ground pixel resolution four -band color digital
orthophotography from imagery acquired at a mutually agreed upon date in late spring of 2022,
under mostly leaf -off conditions. The full acquisition of digital aerial imagery shall be accomplished
using the Microsoft UltraCAM Eagle digital sensor.
3.1. General Technical Specifications
The tables shown below contain the general technical specification for the digital orthophotography
and associated deliverable formatting.
Three-inch US Survey Foot
Orthorectified Ground
Pixel Resolution
Orthophotography
0.25 U.S. Survey Foot (3 inch) or better
Image Type
32 bit 4-band stack imagery (RGBI)
File Format
Geotiff
Compressed File
Formats
SID format for project area at compression ratio determined in
consultation with the City; all compression formats shall be fully
compatible with ESRI® and Engineering CAD software suites.
Coordinate System
State Plane, Texas North Central Zone (WKID 2276)
Horizontal Datum
NAD 1983 (current refinement)
Map Units
U.S. Survey Feet
Map Scale
1:600 (1"=50')
Tile Size
Full tiles required of the established index grid
Image Overedge
None
One -Foot US Survey Foot Orthophotography Project Mosaic
Orthorectified Ground 1.0 U.S. Survey Foot (12 inch) or better
Pixel Resolution
Image Type
24 bit 3-band stack imagery (RGB)
File Format
Geotiff
Compressed File
Formats
SID format for project area at compression ratio determined in
consultation with the City; all compression formats shall be fully
compatible with ESRI® and Engineering CAD software suites.
Coordinate System
State Plane, Texas North Central Zone (WKID 2276)
Horizontal Datum
NAD 1983
Map Units
U.S. Survey Feet
Map Scale
1:4800 (1"=400')
3.2. Data Capture Method
Data capture shall be in direct, digital form using Microsoft UltraCAM Eagle model digital sensor with
forward motion compensation and gyro -stabilized mount. Imagery shall be acquired at a nominal
ground pixel resolution less than three-inch and used for developing 0.25' (three-inch) pixel
orthophotography and other deliverables. The Contractor may resample from a smaller pixel
resolution to achieve the specified pixel resolution and will avoid resampling from a larger pixel
resolution to achieve the specified pixel resolution.
Imagery Capture Specifications
for Areas of Interest
AOI A. Flight
Lines/Images for
48/6,240
Lubbock City/Cnty
AOI B. Flight
Lines/Images for Lake
4/231
Alan Henry Pipeline
AOI C. Flight
Lines/Images for Lake
13/741
Alan Henry Reservoir
Forward
60% / 30%
Overlap/Sidelap
Average Flying Height
4,820 feet above ground
Approximate Quantity
40pts A.
of Photo Control
11 pts B.
Panels
7pts C.
Sensor Details
Vexcel UltraCAM Eagle Mark III, area CCD array —100mm lens.
https://www.vexcel-imaging.com/brochures/UC Eagle M3 en.pdf
Capture Platform
Cessna T31OR
3.3. Capture Conditions
Generally leaf -off conditions and no haze, clouds, fog, dust, smoke, air pollution, snow, or other
ground obscuring conditions shall be present. Capture shall occur within two (2) hours before and
two hours after maximum sun angle, and when the sun angle is not less than 35 degrees above the
horizon. Images shall not contain objectionable shadows caused by relief or low solar altitude.
The downtown area of the City and other tall building locations shown in the following Figure shall be
scheduled to occur as late as possible in the leaf -off acquisition window and at high noon or at the
time with the best solar angle possible to minimize shadow effects of tall buildings. The true ortho
area shall be acquired with 80% forward lap and 80% side lap.
Figure 3 - True Orthophotography Flight Area
3.4. Flight Design
The average 4,820-foot flying height above mean terrain is designed to capture aerial imagery at a
pixel ground resolution slightly less than 0.25 feet square. This flight height is appropriate for
achieving the required final pixel resolution of 0.25 feet. It is also designed for developing DEM
inputs with vertical accuracy appropriate for orthorectification in areas where new surface modeling
may be required.
The flight mission shall be designed such that forward lap is 60% and sidelap 30% in areas of gentle
terrain. Crab shall not be in excess of three (3) degrees; and tilt of the camera from verticality at the
instant of exposure shall not exceed three (3) degrees.
The flight mission schedule must include sufficient time for captured data to be inspected and for any
necessary reflights to be completed within the capture window and prior to the project delivery date.
Reflights shall be centered on the plotted flight lines and must be taken with the same camera
system. The Contractor at no additional fee must correct aerial imagery that does not meet defined
specifications.
3.5. Horizontal Positional Accuracy
Horizontal accuracy testing should follow the ASPRS Positional Accuracy Standards of Digital
Geospatial Data, Edition 1, Version 1.0 — November 2014. Accuracy tests will meet or exceed
requirements for "Standard Mapping and GIS work" which is a 2-pixel RMSEx and RMSEy accuracy
class. For the 3-in imagery this will be 6 inches.
Accuracy testing parameters shall be determined by the Contractor in consultation and with
concurrence of the City's Project Manager. Complete accuracy testing results of all well-defined
points shall be provided in the metadata to the City at the time of data delivery. The City may choose
to use a third party to validate the accuracy of the dataset.
3.6. Aerial Triangulation (AT)
Aerial triangulation will be performed using industry -standard procedures and software packages to
support the horizontal accuracy requirements of the orthophotography as detailed in the proposal.
3.7. Image Quality
Orthophotography shall be clear and sharp in detail with no noticeable blemishes and be
radiometrically and geometrically corrected to enable adjacent files to be displayed simultaneously
without obvious differences in tone, contrast, or position of ground features between single images,
across the block, or across the database.
The most nadir part of every image will be used in mosaicking. Seam lines will be created to ensure
that joins do not cut hard detail and will not cross through above ground structures. Visible seams
within a tile or between tiles, which exhibit a noticeable "edge" or "displacement" effect, will be
grounds for rejection of tiled or mosaiced data.
The imagery shall not contain defects such as out -of -focus imagery, blurs, whorls, color blemishes, or
any other kind of digital blemish or data corruption.
Feature warp or misalignment, smearing, double image, or image stretching indicating bad elevation
data shall not be present and will be grounds for rejection of tiled or mosaiced data.
Distortion resulting from elevated surfaces such as bridges and interchanges or other abrupt changes
in elevation shall be corrected or removed.
Occlusion and smearing in areas of extremely high relief shall be fixed or minimized to the extent
possible using overlapping orthophotos.
Color and contrast adjustments are allowed in post process production if information is not lost in
the shadows or highlights as a result of the process.
Image quality will be approved by the City at the pilot project phase.
3.8. Pilot Project
The contractor will conduct a pilot project before executing final deliverable production. Pilot
project deliverables will be provided to the City for assessment and input on general project quality,
color, aesthetics, and to test out final deliverable formats. The pilot project area will be determined
in consultation with the City and may be discontinuous and shall represent urban, rural, downtown,
and semi -urban areas. It is anticipated the pilot project area will be approximately 10 to 15 square
miles.
3.9. Image Tiling
See Section 2.2.1 of this Scope. Tile grids identical to previous projects will be supplied by the City.
Orthophotography files will be named according to the locally used tile identification.
3.10. Geodatabase Raster Mosaic
An ESRI specification Geodatabase Raster Mosaic will be developed at three-inch (3") GSD resolution
of the entire project area from the uncompressed final project orthophotography tiles. The raster
mosaic shall have image pyramids and statistics produced and delivered within raster mosaic
geodatabase. This mosaic will serve as the foundation for generating and ESRI image service
compliant tile cache. The cache will use existing WMTS level, scale, and spatial reference system
specifications defined in the City's existing and current image service.
3.11. Input Orthorectification DEM/DTM
The City will provide a LiDAR derived surface for use in the orthorectification process. In areas where
surface may need to be updated, a DTM/DEM shall be developed at a density level necessary to
accurately represent the shape of the ground and support the orthophoto production and accuracy
specifications as outlined in this Scope. Terrain/elevation data used in the development of the
DTM/DEM shall be captured by photogrammetric techniques.
Existing LiDAR data shall be reviewed by the Contractor to determine if significant terrain altering
activity has occurred since the LiDAR data was acquired. Contractor shall update the DTM in that
area.
3.12. True Orthophotography
True orthophotography shall be developed in areas in the vicinity of downtown and as indicated in
Figure 2. Selected buildings greater than five (5) stories in this area shall be modeled to allow for the
correction of building lean and occlusions. Planimetrically accurate and topologically sound feature
data shall be collected to provide for detailed digital surface modeling of extruded building walls and
relevant building roof superstructure detail. Additional aerial photography shall be collected with
80% overlap to facilitate the correction of occlusions in identified true orthophotography areas.
3.13. ArcGIS Image Service Cache
Image Service Cache generated from ESRI ArcGIS image service as compact cache storage format.
The cache schema will be defined by the City's existing caches used in 2021.
3.14. Building Footprint Update
The City will provide the current building footprint coverage. This coverage will be updated by the
Contractor to reflect the building footprint structures that have been added, modified, and deleted
as observed in the newly produced aerial orthophotography. This will be accomplished with change
detection techniques employed on the current footprint coverage compared to the new aerial
photography. The contractor will provide a delivery of the updated building footprints in a single
geodatabase. These updated building footprints will have consistently populated attribute fields as
provided in the City schema. Updated building geometry will be limited to buildings exhibiting 120
square feet or greater change.
4. Project Delivery
A single set of deliverables shall be required. The City of Lubbock will use the final deliverables with
ESRI software packages, and all data requested must be useable in this suite of software with no
further manipulation. Product deliverables are defined in the Delivery Manifest.
4.1. Media
Digital data deliverables shall be provided on industry standard removable hard drives with high
speed transfer rates including support for the latest USB specification connections.
4.2. Metadata
Complete, Federal Geographic Data Committee (FGDC) compliant (reference FGDC-STD-001-1998)
metadata shall be provided for each component of the project, including digital orthophotography,
building footprint collection, and DEM/DTM data. All metadata shall be delivered at the same time
and on the same media as the dataset delivery. Each delivered metadata file will include the City of
Lubbock disclosure statement.
4.3. Deliverable Manifest
This 2022 deliverable dataset manifest states the full transfer of deliverable data products on an
external hard drive to be made at the project conclusion. The following tables summarize deliverable
content provided for the project tasks selected Area of Interest. Project deliverables with spatial
reference systems will adhere to the project coordinate system defined as follows:
Spatial2020 Project
Coordinate System State Plane
Zone
TX North Central
Horizontal Datum
NAD83
Vertical Datum
NAVD88
Geoid
Match 2016 LiDAR
Horizontal & Vertical
Units
U.S. Survey Foot
W KI D
2276
1. Archive Digital GeoTIF (.tif)
Orthophotography World File (.tfw)
Uncompressed
4-band stack
8 bit depth (32 bit files)
0.25 foot resolution
Tiled per City tiling system
Full imagery tiles
0 and 255 pixel value is reserved for
transparency functions
No imagery overedge
ESRI world files
Note: imagery to include true ortho areas;
optional AOI B. LAH pipeline may not contain
full tiles of imagery.
2. Compressed MrSid (.sid) Lizardtech geo-encoder compressed
MrSID World File (.sdw) Compression ratio determined during pilot
Orthophotography project
4-band stack
8 bit depth (32 bit files)
0.25 foot resolution
Tiled per City tiling system
Full imagery tiles
No imagery overedge
ESRI world files
Note: imagery to include true ortho areas
3. ESRI ESRI Geodatabase (.gdb) File geodatabase of archive digital
Geodatabase orthophotography (0.25 foot resolution) with
Raster Mosaic generated pyramids and image statistics.
Note: imagery to include true ortho areas
4. ECW Project ECW single file (.ecw) Single File ECW V3 compression
Mosaic World File (.eww) 3-band stack RGB of contiguous coverage
(note: LAH Pipeline may be kept as a separate
mosaic)
8 bit depth (24 bit file)
1.0 foot resolution
Embedded opacity region
5.
ESRI Tile Cache
Zip file of ESRI Tile
Cache (.zip)
5.
Flight Line Index
ESRI Geodatabase (.gdb)
7.
Tile Index
ESRI Geodatabase (.gdb)
8.
Photo Control
ESRI Geodatabase (.gdb)
Adobe PDF (.pdf)
9.
Aerial
Adobe PDF (.pdf)
Triangulation
MS Excel (.csv)
Report
10.
Building Footprint
ESRI GDB
Update
11.
FGDC Compliant
Text files (.txt, .htm, .xIs)
Metadata
Esri GeoDatabase (.gdb)
Note: imagery to include true ortho areas
WMTS cache files and folders developed from
ESRI geodatabase raster mosaic for import
into ESRI Image Service. Esri tile cache will be
generated using the native ArcGIS Server
image service cache.
Center points and area footprints with
attribution of x, y, z, omega, phi, kappa, photo
ID, Date, and Time of image capture for each
feature.
Aggregated individual the polygons of the
deliverable imagery tiles with NAME attribute.
Full project control network as point features
with attribution of Point Id, Northing, Easting,
Orthometric Elevation, Accuracy, Survey
Process (RTK, Static, TS), and Surveyor of
Record.
Any permanently monumented points acquired
will be included in the photo control network.
Control Report Document signed by surveyor
of record
Aerial Triangulation Report Document signed
by photogrammetrist, including final refined
exterior orientation values for each captured
photo.
Footprint update data integrated with City
footprint coverage
FGDC metadata for the project archive
orthophotography and GIS Features validated
with the USGS metadata parser.
S. Product Acceptance Procedures
The Contractor is responsible to assure that all services and products required by this Scope are
performed and provided in a manner that meets all professional and engineering quality standards
and industry -accepted photogrammetric principles.
The Contractor shall warranty all project deliverables for a period of two (2) years from the final
product delivery date in the project schedule as negotiated in this Agreement. The warranty shall
include compliance of all deliverables to the technical specifications, product accuracy specifications,
and data format and software compatibility as outlined in this Scope, or as stated and affirmed by
the Contractor. The Contractor is responsible for replacing deliverables found to be deficient or
defective and costs associated with accomplishing the replacement of data under warranty shall be
borne by the Contractor with no additional cost to the City.
The City's Project Manager shall be the point of contact with the Contractor for notification of
deficiencies or defects. The warranty shall stipulate that the Contractor shall complete the repair or
replacement of the defective product within ten (10) working days from receipt of a written notice
from the Project Manager, or the Contractor shall meet with the Project Manager within five (5) days
of receipt of the written notice of defective product or product not in compliance with specifications.
If after meeting with the Project Manager, the data is found to be deficient or defective, the repair
and replacement shall be completed within ten (10) working days as stipulated herein, or within a
reasonable time period agreed upon by the City and the Contractor.
6. Submittal Schedule
A Gantt chart of the Project schedule showing task, duration and product delivery shows calendar
days from the issuance of a Notice to Proceed and is shown below. This Project schedule serves as
the basis for the Schedule of Fees and "On -Schedule Delivery" period developed for this Project.
2022 Lubbock Orthophotography Project
OURATION IN CALENDAR WEEIG
Apra A" Ivne A4dy Auevst September OC.brr N-b.
1 2 3 4 S 6 7 St
1a 11 12 13 14 1S 16 17 IS 19 2S 2l 22 23
Notice to Prxead
Final Right Plan -
Ground Control Activities Early to Midday Flight
Aerial Trianglulation
Orthorectkkation
Color Balance
Seamline and Mosaicing -
QC and Pilot Deliveries -
Error Calls Corrected
Final
Final Accuracy Validation
Formats & Final Delivery per SOW _
Contract 15678 - Digital Orthophotography Project 2022
EXHIBIT B
FEE SCHEDULE
Description for Digital Orthophotography Work
Fee
City of Lubbock AOI
Control, aerial acquisition, data production
$120,125
3" Orthos and associated deliverables
Pipeline AOI - option
Control, aerial acquisition, data production
$10,250
3" Orthos and associated deliverables
Lake Alan Henry AOI - option
Control, aerial acquisition, data production
$18,640
3" Orthos and associated deliverables
City Limit Area Building Footprint Update
120 square foot or greater change detection of footprint/industrial
$8,750
canopy coverage
Total
$157,765.00