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HomeMy WebLinkAboutResolution - 4741 - Contract - Williams-Stackhouse Inc - Photgrammetric Mapping Services - 02/09/1995Resolution No. 4741 February 9, 1995 Iem 433 RESOLUTION BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF LUBBOCK: THAT the Mayor of the City of Lubbock BE and is hereby authorized and directed to execute for and on behalf of the City of Lubbock a Contract and all related documents by and between the City of Lubbock and Williams -Stackhouse Incorporated for photogrammetric mapping services, which contract is attached hereto, which shall be spread upon the minutes of the Council and as spread upon the minutes of this Council shall constitute and be a part of this Resolution as if fully copied herein in detail. Passed by the City Council this 9th day of February 1995. ATTEST: 6,d� Ak etty V. Johns&n—,(City Secretary FXIKI" AS TO F Dhhald G. Vandiver, Fi. Assistant City Attorney DGV:dp\G:\ccdces\W S1.Res January 23, 1995 Resolution No. 4741 February 9, 1995 Item 433 CONTRACT FOR PHOTOGRAMMETRIC MAPPING SERVICES This contract is made and entered into this 9th day of February 1995 by and between the City of Lubbock, Texas, hereinafter called the City, and Williams -Stackhouse Incorporated, hereinafter called WSI. I. Scope of Work WSI shall furnish, in a professional and workmanlike manner photogrammetric mapping services as described within this Scope of Work. Services shall include developing 1 foot interval contour maps by obtaining aerial photography, control surveys, analytical aerotriangulation, and digital map compilation for at least 34 square miles. Additional aerial photography, rectified photo enlargements, and photo mosaics shall be provi- ded for an area of 342 square miles. The attached map (Exhibit A) identifies these areas. WSI shall perform these services in accordance with the specifications described herein, and as described in WSI's proposal dated December 14, 1994, and the City's Request for Proposals (RFP) #13120. A. Aerial Photography To produce the required map data and photo products, WSI shall obtain new black -and -white aerial photography at three scales: 1 "=420' (2520' above ground), 1"=1000' (6000' above ground), and 1"=3000' (18,000' above ground). The 1"=420' coverage shall be used for digital map compilation at 1"=200' with a 1' contour interval. It shall be taken only of the 34 square mile area to be mapped and shall consist of six north -south flight strips and two east -west flight strips. Each photograph shall be taken to overlap the preceding photograph in the direction of flight by approximately 60 percent. Photographs from adjacent flight strips shall overlap by approximately 30 percent. This shall result in full stereoscopic coverage of the area and shall be suitable for attaining 1 "=200' scale/1 foot interval contour map accuracy standards. The 1"=1000' coverage shall be used to prepare scale -rectified photo enlargements at a final scale of V=200'. It shall be taken of the entire 342 square mile project area and shall consist of 28 north -south flight strips centered on each row of sections. Each photograph shall be taken to overlap the preceding photograph in the direction of flight by approximately 80 percent. Photographs from adjacent flight strips shall overlap by approximately 41 percent. Photography taken in this manner shall ensure that each photo sheet can be produced from the center portion of a single exposure. The 1 "=3000' coverage shall be used to prepare a photo mosaic at a final scale of 1"=1500'. It shall be taken of the entire 342 square mile project area and shall consist of five east -west flight strips. Each photograph shall be taken to overlap the preceding photograph in the direction of flight by approximately 60 percent. Photographs from adjacent flight strips shall overlap by approximately 30 percent. WSI shall take the photography with Kodak Double -X 2405 Aerographic Film using a Wild RC -30 precision mapping camera equipped with eight fiducial marks and a standard six inch focal length. All photography shall be accomplished during the winter season when foliage cover is reduced and during the high -sun -angle period of the day (10:00 am to 2:00 pm). The photography shall also be taken with calm, clear atmospheric conditions when the ground is not obscured by clouds, cloud shadows, haze, fog, or snow. The photography shall be carefully examined with respect to scale overlap/sidelap, crab, tip/tilt, image density, and overall quality. Exposures that do not meet specifications, or are in some other way deemed unacceptable, shall be reflown as soon as conditions permit. All acceptable photography shall be labelled with date, scale, project name, and exposure number. Once the photography is checked for quality and labelled, WSI shall prepare 9" x 9" contact prints using Kodabrome RC II photographic paper. One set of prints for each flight scale shall be delivered to the City. Additional sets shall be prepared for a photo index and for use during the control survey and aerotriangulation phases of the project. Photo indexes shall be prepared by aligning and matching the contact prints and stapling them to a board. The indexes shall then be photographically reduced and printed onto overlapping 34" x 34" sheets. Each sheet shall contain title information, project name, date, scale and north arrow. Delivery to the City shall include one set of prints on Kodabrome RC II photographic paper. All original aerial negatives with flight reports shall be delivered to the City. B. Control Surveys and Monumentation Horizontal and vertical survey data shall be established at approximately 103 locations in and around the mapping area. This phase of the project shall be subcontracted to and performed by Wilson Surveying Company, Inc. Prior to obtaining the aerial photography, field reconnaissance and targeting shall be performed. As many of the control points as practical shall be pre -marked (targeted) to ensure visibility on the photography. Acquisition of the survey data shall be accomplished using three Trimble Naviga- tion 4000 SSE GPS receivers. Current Trimble software shall be used for baseline processing, network analysis, and network adjustment. Quality assurance shall be provided by conforming to guidelines outlined in the FGCC "Geometric Geodetic Accuracy Standards Specifications for Using GPS Relative Positioning Techniques." All network design, computations, and final values shall be performed by a Registered Professional Land Surveyor, with current license in the State of Texas. The horizontal control shall be established to second- order accuracy standards and shall be referenced to the Texas State Plane Coordinate System, North Central Zone, NAD 1927. The vertical control shall be established to at least third -order standards and referenced to mean sea level based on NGVD 1929. At each control point an iron pin and aluminum cap shall be left, as a minimum, for future survey use. A comprehensive survey report shall also be furnished. This report shall be bound in loose leaf form and shall include a narrative section, GPS compensation summaries and results, description sheets, azimuth references, coordinates, and elevations. C. Analytical Aerotriangulation WSI shall expand the network of control points obtained in the field through an analytical aerotriangulation adjustment which shall provide supplemental control for setting individual stereo -models in WSI's photogrammetric plotting instruments. Film diapositives (9" x 9") shall be prepared from the photography on which WSI shall mark both the field points and the supplemental points required for setting the stereo -models. WSI shall use a Wild PUG point transfer devise for pugging the emulsion of the diapositives and shall then set each diapositive in a Zeiss C-120 Planicomp analytical stereoplotter to determine relative coordinates for each pug point. These values, along with the known ground coordinates, shall be used to compute the ground coordinates for the supplemental points. From the aerotriangulation, a computer printout shall show the following: ground control; triangulated ground point residuals; triangulated camera stations; triangulated ground points; corrections applied to ground control; computed coordinates for all control points, passpoints, and checkpoints with their field or computer designations; and a root -mean -square error summary of the final adjustment. A report shall accompany the printout describing procedures and computer programs used. A listing of all field control not used in the final computer run shall also be shown with a description of any misclosures encountered at control points and steps taken to rectify the discrepancies. D. Digital Map Compilation WSI shall use Zeiss first -order analytical stereoplotters to compile digital topographic mapping at 1 "=200' scale with a 1' contour interval for an area of approximately 34 square miles. The digital data shall be edited and formatted with Intergraph MicroStation 5.0 software. During the edit process, text shall be added and the data placed in the final layered structure. Map data to be shown shall include the following: contours (1' interval), spot elevations, coordinate grid ticks and values (NAD 27), highways/streets/roads (including names), fencelines, bridges, drainage features (rivers, streams, lakes, ponds, etc.), dams, outline of wooded areas, cross-country power lines, tanks, and control monuments. After the edit and structuring of the data, a plot file shall be created for each sheet. One set of paper verification plots and, upon approval, one set of final mylar plots shall be produced and delivered. Each plot shall be 34" x 34" in overall size and shall contain a standard title and border format that shall include project name, north arrow, bar scale and sheet number. WSI shall also deliver to the City one set of digital files in Intergraph MicroStation 5.0 format. All digital map compilation shall meet or exceed the following photogrammetric accuracy standards: Ninety percent of all well defined planimetric detail shall be plotted to within 1/100" at map scale, and no such feature shall be in error by more than 1/50". Ninety percent of all solid -line contours shall be accurate to within one-half the contour interval, and no such contour shall be in error by more than one full interval. In areas of dense vegetation (heavy brush, trees, etc.) where visibility of the ground is obscured, the contours shall be shown as dashed lines and plotted as accurately as photogrammetric methods permit. Ninety percent of all spot elevations shall be accurate to within one-fourth the contour interval, and no such elevation shall be in error by more than one-half the interval. Throughout the survey and map compilation phases of the project, efforts shall be made to ensure that the new mapping shall tie to the City's previous mapping. If any erroneous data is discovered in the previous work where tie-ins are difficult or impossible, the City shall be informed of the problem. E. Photographic Enlargements WSI shall prepare scale -rectified photo enlargements to correspond in size and scale to each of the 1 "=200' map sheets. This shall cover the entire 342 square mile project area which includes both the 34 square miles of new mapping as well as areas of previous mapping. Each enlargement shall be printed on 4 mil. reproducible film positive material and shall be 34" x 34" in overall size. The imagery shall be printed with a 133 line - per -inch screen and shall be centered on each one mile by one mile section. Each sheet shall be printed with a standard title and border format containing project name, north arrow, scale bar, date, sheet number. Each enlargement shall be scale -rectified by projecting the imagery to a "best fit" of the map detail. This process shall adjust for tip and tilt as well as scale. F. Photo Mosaic WSI shall prepare and deliver a 1 "=1500' photo mosaic of the entire 342 square mile project area. This shall be accomplished by enlarging the 1"=3000' photography and scale -rectifying each individual photograph. They shall be contour -cut, feather -edged, and spliced to give the appearance of one large photograph of the area. The mosaic shall then be copied and printed on three overlapping 40" x 72" sheets. G. Delivery Products One set of 9" x 9" contact prints One set of photo index prints One set of original aerial negatives with flight reports One survey control report with description sheets and GPS survey data One aerotriangulation report One set of 34 paper verification plots (34" x 34") at 1"=200' with a 1' contour interval One set of 34 mylar map plots (34" x 34") at 1 "=200' with a 1' contour interval One set of digital map files in Intergraph MicroStation 5.0 format One set of 342 scale -rectified photo enlargements (34" x 34") at 1 "=200' on screened reproducible film positive material. One set of three overlapping 40" x 72" photo mosaic prints II. Schedule WSI shall provide final deliveries within two hundred (200) calendar days from the date of the Notice to Proceed, and as outlined on Exhibit B. Deviations from this schedule shall be allowable if weather conditions delay the acquisition of the aerial photography and/or GPS control. Allowed deviations shall be of the same duration as the delay due to adverse weather conditions. III. Fee and Payments As compensation for the work to be performed under this agreement, the City shall pay WSI in accordance with the attached fee schedule, but not to exceed a total of one hundred eighty seven thousand six hundred twenty-five dollars ($187,625). WSI shall submit monthly invoices to the City. Charges on these invoices shall be based on of work completed, and shall be itemized by work phase. The invoiced amount shall be due WSI upon the City's acceptance of that part of the work. In no case shall the City's acceptance be delayed more than thirty days unless WSI breaches this contract or quality deficiencies are found in the work. Work found by the City to be unacceptable shall be corrected by WSI within thirty days following the City's notification of such deficiencies. IV. Guarantee WSI and its subcontractors shall guarantee the accuracy of all work performed under this contract for a period of one year upon final delivery of all products, as. defined in Section II above. WSI shall be solely responsible for any work performed by WSI's subcontractors. WSI shall be committed to make any and all corrections to errors or discrepancies that might be found during a period of one (1) calendar year after acceptance of the project. WSI shall make such corrections at WSI's expense within forty five (45) calendar days following notification of the error or discrepancy. Corrections shall be made to all mylar sheets, electronic files and ground control point data affected by such corrections. V. Termination The City may, at its discretion, terminate the work under this agreement by giving a seven day written notice. If the project is terminated, WSI shall be equitably paid for services rendered prior to effective termination notice date, pro -rated on the basis of completed work. VI. Additional Provisions This contract shall not be assignable without the express prior written consent of the City. Notices and invoices under this contract shall be sent to the following: City of Lubbock P.O. Box 2000 Lubbock, Texas 79457 Attn: Blas J. Gomez, P.E., Storm Water Management Senior Civil Engineer Williams -Stackhouse Incorporated P.O. Box 17066 San Antonio, Texas 78217 Attn: Randall L. Holt, President This contract is binding on the parties hereto, their successors and assigns. Each party represents that this contract is entered into lawfully and pursuant to all necessary approvals and authority. CITY OF LUBBOCK, TEXAS Approved As To Content: AD.Her(el, P.E. City Engineer Approved As to Form U nald G. Vandiver First Assistant City Attorney Mayor Attest: &tt,— Betty hnson City Secretary WILLIAMS-STACKHOUSE INCORPORATED By: --tGs Attest:_�i /a�E' ✓!� �,f Randall L. Holt David B. Dallas President Marketing Manager IR 31 D° Ns, J ant i N m i I IYJV3J Ns, J ant i EXHIBIT C - FEE SCHEDULE Aerial Photography Photo acquisition, photo processing, and printing for three flight scales: 1 "=420' (covering approx. 34 sq. mi.), 1"=1000' (covering approx. 342 sq. mi.), and 1"=3000' (covering approx. 342 sq. mi.). Photography will consist of approx. 1520 individual exposures. Delivery will include one set of 9" x 9" contact prints, one set of photo index prints, and one set of original negatives with flight reports. Flight Operations (includes cost of aircraft, crew, GPS navigation equipment and precision aerial mapping camera) - 36 hrs. @ $480 per hr ............................ $ 17,280 Aerial Film (Kodak Double X Aerographic 2405) - 6 rolls @ $432.00 each .......................................... $ 2,592 Photo Lab Materials (for contact prints, photo indexes, and film diapositives) ......................................... $ 2,950 Photo Lab Technician - 240 hrs. @ $41.00 per hr .................. $ 9,840 Cartographic Technician - 80 hrs. @ $33.50 per hr ................. $ 2,680 Principal/Project Manager - 24 hrs. @ $60.00 per hr ................ 1,440 $ 36,782 Control Surveys (Wilson Surveying Company, Inc.) Targeting, establishment of approx. 103 GPS control points, and tie-ins to control the City's previous mapping. Delivery will include one control report with description sheets and GPS survey data. Three -Man Field Party - 296 hrs. @ $70.00 per hr .................. $ 20,720 Mileage - 4440 mi. @ $.40 per mi ............................... $ 1,776 CADD Operator - 160 hrs. @ $40.00 per hr ....................... $ 6,400 CADD Equipment - 160 hrs. @ $10.00 per hr ...................... $ 1,600 Registered Surveyor - 144 hrs. @ $50.00 per hr ................... $ 7,200 Three GPS Receivers - 15 days @ $600.00 per day ................ 9,000 Analytical Aerotriangulation & Digital Map Compilation Aerotriangulation and digital topographic mapping (1"=200', 1' contour interval) for areas totalling approx. 34 sq. miles. Delivery will include one aerotriangulation report, one set of 34 paper verification plots (34" x 34"), one set of 34 mylar map plots (34" x 34"), and one set of digital files in Intergraph MicroStation 5.0 format. Analytical Stereoplotter Operator (includes instrument cost) - 1300 hrs. @ $43.00 per hr ............................. $ 55,900 CADD Technician - 460 hrs. @ $37.00 per hr ....................... $ 17,020 Materials (Plotting Media and Disks) ............................ $ 300 Principal/Project Manager - 130 hrs. @ $60.00 per hr . ............... 7,800 $81,020 Photographic Enlargements Scale -rectified photo enlargements at 1"=200' for an area of approx. 342 sq. miles. Delivery will include one set of 342 reproducible screened film positives (34" x 34") Photo Lab Technician - 150 hrs. @ $41.00 per hr ................... $ 6,150 CADD Technician (for digitizing control and computing rectifier settings) - 104 hrs. @ $ 37.00 per hr. .......... $ 3,848 Cartographic Technician - 24 hrs. @ $33.50 per hr . ................ $ 804 Photo Lab Material . ......................................... $ 4,740 Principal/Project Manager - 16 hrs. @ $60.00/hr.................... $ 960 $16,502 Photo Mosaic Photo Mosaic at 1 "=1500' for an area of approx. 342 sq. miles. Delivery will include four sets of three overlapping 40" x 72" sheets (one set of reproducible film positives and three sets of paper prints). Photo Lab Technician - 124 hrs. @ $41.00 per hr . .................. $ 5,084 Cartographic Technician - 6 hrs. @ $33.50 per hr . ................. $ 201 Photo Lab Materials ......................................... $ 980 Principal/Project Manager - 6 hrs. x $60.00 per hr ................... $ 360 $ 6,625 Total (Not to Exceed): $187,625 CITY OF LUBBOCK MEMO TO: Honorable Mayor and Members of the City Council FROM: Blas J. Gomez, P.E., Senior Civil Engineer, Chair of Review Committee SUBJECT: Photogrammetric Mapping Services Consultant Selection DATE: December 21, 1994 The City Council authorized preparation of aerial photography and contour maps as part of the FY 94-95 Capital Projects Budget (Fund -Project #: 293-9090). This project includes: 1) Preparation of a new aerial mosaic for the city and portions of its Extra Territorial Jurisdiction(ETJ); 2) Creation of approximately 340 rectified aerial photographs at a 1"=200' scale; and 3) Contour mapping of approximately 35 square miles of the city's ETJ, including digital data for GIS use and mylar copies at 111=2001 scale. Up-to-date aerial photographs for the city and much of its ETJ will replace current aerial photos that are as much as ten years old. The contour maps to be produced will provide complete and accurate information for the completion of the Master Drainage Plan and Drainage Manual which are currently being prepared by a private consultant. Aerial photographs and contour maps are used by many departments and the public on a daily basis. City departments, including Planning, Building Inspection, Code Enforcement, Right -of -Way, LP&L, Parks, and others, need accurate and up-to-date information to complete their daily tasks and minimize on-site inspection. Up-to-date photos and contours are needed for design activities in Street/Drainage Engineering, Water Utilities Engineering and Storm Water Management. They also expedite the work of field crews and survey teams in Street/Drainage Engineering and Water Utilities. In order to obtain accurate aerial photography and contour maps, it is always advisable to fly the target areas during the winter months, when deciduous trees are barren, providing optimum visibility. For this reason, the Staff proceeded to prepare a Request for Proposals (RFP) early in the fiscal year, so that aerial photos can be taken, at the latest, in February of 1995. In response to the Request for Proposals (RFP), five (5) firms submitted proposals by the closing date of December 15, 1994. Listed in alphabetical order, these firms are: International Aerial Mapping Co., San Antonio, TX. Koogle & Pouls Engineering, Inc., Alburquerque, NM. Surdex Corporation, Chesterfield, MO. Tobin Surveys, Inc., San Antonio, TX. Williams-Stackhouse Incorporated, San Antonio, TX. Following City policies and procedures, Bob Cass, City Manager, appointed a committee of seven (7) people to review the proposals received and make recommendations to the City Council on the most qualified firm to provide the photogrammetric services being requested. The review committee consisted of: Blas Gomez, P.E., Storm Water Management, Chairman Keith Smith, P.E., Street/Drainage Engineering David Jones, Airport Administration Mike Murphy, P.E., Water Utilities Engineering John Webb, Parks Department Sally Abbe, Planning Department Wayne Hicks, P.E., LP&L Engineering The first meeting of the review committee was held on December 16, 1994. Each of the committee members received a copy of the RFP, a complete set of proposals, and a Rating Form. The committee discussed the criteria listed in the RFP and decided how each would be weighted on the Rating Form. The criteria used for selection of the consultant was described in the RFP and included: A. Firm Qualifications: including experience with similar projects, professional references, and firm's years of experience. B. Personnel Qualifications: including experience and background of the project manager, experience of staff to be involved in the project, and number and level of personnel to be assigned to the project. C. Methodology: this includes compliance with and understanding of the RFP, equipment to be used in the project, and work schedule. The committee members reviewed the proposals on their own time before the second meeting, which took place on December 21, 1994. The composite scores were tabulated and they ranged from a high score of 93.09 to a low score of 81.66. After further discussion of each firm's qualifications and proposal, the committee ranked the firms as follows: 2 1. Williams -Stackhouse Incorporated 2. Surdex Corporation 3. International Aerial Mapping Co. 4. Koogle & Pouls Engineering, Inc. 5. Tobin Surveys, Inc. While any of these companies could adequately perform the services being requested, the committee is hereby recommending Williams -Stackhouse Incorporated (WSI) as the aerial mapping company to provide the services required for this project. WSI is proposing a completion time of nine (9) months, which the Staff considers is reasonable and would meet the needs of the City. WSI has many years of experience in the surveying and mapping disciplines, and uses state-of-the-art equipment and technology. This company is also familiar with the local conditions, as they have previously completed numerous projects in the Lubbock vicinity including topographic mapping of the Texas Tech Campus. For the surveying portion of the project, WSI will utilize the services of a local firm, Wilson Surveying Company, Inc. Wilson Surveying has an in-depth knowledge of existing survey control points and local conditions, and has performed numerous projects for the City and other local private and public agencies. Wilson Surveying will utilize Global Positioning Surveying (GPS) which should result in better accuracy, completion time and cost effectiveness than conventional surveying. The selection committee hereby recommends that the City Council authorize Staff to negotiate a contract with Williams -Stackhouse, Inc. It is our understanding that if no response is received from Council members by Friday, January 6, 1995, then we shall proceed to negotiate a contract. If a mutually acceptable contract cannot be negotiated with Williams -Stackhouse, then we request authorization to negotiate with the firm who rated second highest in the evaluation, Surdex Corporation. C Respectfully submitted, 2 B1 Gomez, P.E., Chairman cc: Bob Cass, City Manager Larry Hoffman, Director of Transportation Review Committee Members Larry Hertel, City Engineer EXHIBIT B - PERFORMANCE SCHEDULE �l D111-1 d-C-py -1. -d -- E-19--l.