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Home My WebLink AboutC2009-007 - 1/13/2009 - ApprovedCITY OF CORPUS CHRISTI PACKERY CHANNEL QUARTERLY MONITORING PROJECT - Amendment No. 2 The City of Corpus Christi, Texas, hereinafter called "City", and the Division of Nearshore Research (DNR) at Texas A&M University -Corpus Christi, hereinafter called "DNR", hereby agree to amendmentofthe Contract as approved by Council February 26, 2008 (M2008-052) and administratively amended on March 3, 2008 as follows: Section II. Scope of Services, A. Tasks 2-3 is amended to read as follows: II. SCOPE OF SERVICES A. TASKS: DNR will complete the following tasks: Year 1-modified scope -Amendment 2. 2-4. Winter Survey Quarterly winter monitoring of Packery Channel is authorized during February 2009. In addition to surveys in the channel and surrounding nearshore, this effort will include surveys of the shoreline position along the adjacent beach (targeting the region along the seawall). DNR conducted emergency bathymetric (water) and topographic (land) surveys during the week of 23 Sep OS to document the post-storm impact of Hurricane Ike on the channel and adjacent beach and nearshore. The post-storm survey authorized by administratively was not included in the original contract budget. Rapid deployment of the survey team was made possible by the amendment which authorized DNR to pertorm the post-storm survey using the funds budgeted for the February Winter Survey. This amendment authorizes funding for the regularly scheduled quarterly monitoring survey to be conducted during late February 2009, and a no-cost time extension to continue the project through May 31, 2009. The extension permits the orderly collection of data, data analysis, reporting and invoicing. Tasks: The following tasks are proposed for the Winter Survey: 1. Single and multibeam sonar survey of Packery Channel from the GIWW to the channel mouth (including the basin and entrance channel). Purpose: to defne channel depth and identify regions of scour and channel shoaling. Calculate potential volume of sand available for dredging. 2. Single and multibeam survey of the nearshore fronting Packery Channel, including a 0.5 mile region immediately surrounding the channel mouth. Purpose: to define depth around jetties and channel mouth and define regions of scour and shoaling that could potentially limit navigation. 3. Topographic surveys in regions of structural failure (boat ramp, entrance revetment) as needed. 4. Bathymetric and topographic survey of Mollie Beattie Coastal Habitat Community (MBCHC). Purpose: to determine change in adjacent channel width as well as changes in landforms, water depth and extent of the preserve. Purpose and Goals of the February Survey The purpose of the Winter Survey is to determine changes in and adjacent tc Packery Channel during the high- energy period occurring from September through February. The surveys will also document changes in the shoreline position adjacent to the inlet. The survey will document if the shoreline that receded adjacent to the inlet and along the southern end of the seawall during Hurricane Ike, and whether the shoreline is beginning to advance indicating widening of the beach. Survey Area The survey will include the entrance channel, deposition basin and inland waterway to and including a small section of the GIWW. The offshore region immediately surrounding the channel mouth (0.5 mile box) will also be surveyed. Shoreline position will be measured along Mustang Island and North Padre Island. The Mollie Beattie Coastal Habitat Community (MBCHC) survey will include the channel adjacent to the flats as well as transects stretching across the wetland. 2009-007 M2009-006 01/13/09 fAMU-CC ritoring\DNRContractAmd2-2008.doc Page 1 of 3 Schedule All survey operations for Amendment No. 2 Survey operations are scheduled for the last two weeks of February or first week of March dependent on weather and sea conditions. The proposal for the winter survey is attached as Exhibit A-2. Amendment No. 2 Cost to City: $61,715.00 Task Descri lion Time Est. Cost Field Mobilization '/ da $ Incl. Bathymetric channel and nearshore survey Offshore sin le-beam sonar $3,500 er da 1.0 da s 3,500 Channel multibeam sonar @ $4,100 per day 2.0 days 8,200 Surt zone survey with Sled @ $3,500 per day 2.0 days 7,000 Post-processing data 5,300 Bathymetric Channel & Nearshore Survey Sub-total 24,000 Shoreline Position Survey RTK-GPS Topographic Survey @ $ 1,600 1.0 day 1,600 Post-processing data 400 Shoreline Position Survey Sub-total 2,000 Mollie Beattie Coastal Habitat Survey Topographic Survey and littoral boundary survey (wading survey) @ $ 1,600 4.0 days 6,400 Post-processing data 1,600 Mollie Beattie Survey Sub-total 8,000 Basin Revetment Survey RTK-GPS Topographic Survey @ $ 1,600 1.0 day 1,600 Post-processing data 400 Basin Revetment Survey Subtotal 2,000 Surveying subtotal 36,000 Anal sis, Re ortin ,Staff, Benefits, Etc. Anal sis and re ortin 11,000 Support staff, data base management 2,000 Benefits/insurance 4,030 IDC 8,685 Anal sis, Re ortin ,Staff, Benefits, Etc. 25,715 Total $61,715 H:WOME\KEVINS\GEN\PACKERY\Monitoring\DNRConiractAmd2-2008.doc Page 2 of 3 III. FEES AUTHORIZED The City will pay DNR a fixed fee not to exceed $314,222.00 for providing all services for during the contract term (12 months). The fee consists of an original contract fee of $241,487.00, a fee for Amendment No. 1 of $11,020.00 and a fee for Amendment No. 2 of $61,715.00. This fee will be full and total compensation for all services provided and expenses incurred in pertorming the tasks specified in Section II. Invoices will be submitted to the Director of Engineering Services. Invoices will be submitted no more frequently than once per month for services rendered. All invoices shall be accompanied by a cover letter summarizing project status and the tasks undertaken during the time period covered by the invoice. Invoices will be based on the budget attached as Exhibit A. Invoices will be sequentially numbered for each project, state the project name (Packery Channel Quarterly Monitoring Project) and City project number (5228). The letter shall state the number of the current invoice, the total authorized fee, the amount previously invoiced, and the current amount due. Statements will be based upon percent of project completed. However, a final payment of $3,500 will be retained until delivery of the final report. Contract Fee Ori final Contract $241,487.00 Amendment No. 1 $11,020.00 Amendment No. 2 $61,715.00 Total $314,222.00 All other terms and conditions of the February 26, 2008 contract, as amended, between the City and Consultant shall remain in effect. CITY OF CORPUS CHRISTI sy: ~ n I • lG ~~ t Oscar Martinez Date Interim Assistant City Manager TEXAS A&M UNIVERSITY -CORPUS CHRI TI sy: ~~--/ ~ U j eldre .Williams Date Principal Investigator ATTE/~J~ l i~la~ City Secretary Date APPROVED AS TO FORM: y ll~~^'11 l D~ Assistant City Attorney Date RECOMMENDED: ~` ~ t ~~ ~~ evin R. towers Date Director -Engineering Services ~- s ~ By. 1- ~O-b4 Date Harvey Knull, Ph.D. Associate Vice President for Research o ~ ~o ~IITNORilf:D H:\HOME\KEVINS\GEN\PACKERY\Monitoring\DNRContractAmd2-2008.doc Page 3 of 3 Request for Modification to Contract Quarterly Bathymetric and Topographic Survey and Analysis of Packery Channel Including the adjacent beach along North Padre Island and Mustang Island Submitted by: Deidre D. Williams Division of Nearshore Research Texas A&M University-Corpus Christi Scope of Work To continue to provide the most timely and relevant data and analysis describing the present status of shoaling and scour in Packery Channel, the Division of Nearshore Research (DNR) proposes that quarterly monitoring of Packery Channel continue during February 2009. In addition to surveys in the channel and surrounding nearshore, this effort would include surveys of the shoreline position along the adjacent beach (targeting the region along the seawall). DNR conducted emergency bathymetric (water) and topographic (land) surveys during the week of 23 Sep 08 to document the post-storm impact of Hurricane Ike on the channel and adjacent beach and nearshore. The post-storm survey was not in the existing contract budget. In an effort to facilitate rapid deployment of the survey team, an amendment was accepted by the City of Corpus Christi allowing DNR to perform the post-storm survey using the funds budgeted for the February Winter Survey. This proposal is to amend the existing contract allowing the regularly scheduled quarterly monitoring survey to be conducted during late February 2009. Additionally, a no-cost time extension is requested to continue the project through May 31, 2009. This will allow for data collection, analysis, reporting and invoicing. The following tasks are proposed for the Winter Survey: 1. Single and multibeam sonar survey of Packery Channel from the GIWW to the channel mouth (including the basin and entrance channel). Purpose: to define channel depth and identify regions of scour and channel shoaling. Calculate potential volume of sand available for dredging. 2. Single and multibeam survey of the nearshore fronting Packery Channel, including a 0.5 mile region immediately surrounding the channel mouth. Purpose: to define depth around jetties and channel mouth and define regions of scour and shoaling that could potentially limit navigation. 3. Topographic surveys in regions of structural failure (boat ramp, entrance revetment) as needed. 4. Bathymetric and topographic survey of Mollie Beattie Coastal Habitat Community (MBCHC). Purpose: to determine change in adjacent channel width as well as changes in landforms, water depth and extent of the presence. Exhibit A-2 Pa e 1 of 3 Purpose and Goals of the February Survey The purpose of the Winter Survey is to determine changes in and adjacent to Packery Channel during the high-energy period occurring from September through February. During the winter season strong periodic bursts of energy out of the northeast to northwest force sediment transport along the Texas coast. Strong northwesterly fronts strengthen ebb (directed toward the Gulf of Mexico) flow and thus sediment transport in Packery Channel. The proposed surveys will determine the change in existing volume and extent of shoaling in Packery Channel relative to storm forcing. Prior to the winter of 2008, data showed that the entrance shoal diminished during the winter months as winds directed out of the northwest reinforced the ebb current and forced sand out of the channel into the Gulf of Mexico. Few fronts approached the region after December 2007 resulting in weaker ebb flow. Therefore a large shoal developed near the mouth of the channel. The entrance shoal increased in extent and volume after Hurricane Ike introduced over 30,000 cu yd of sand from the adjacent beach into the channel. The proposed survey will determine how much sand has been eliminated from the channel during the winter period before the southeast winds resume in late February and early March 2008. Once southeast winds resume the ebb flow that acts to flush sand out of the channel will likely diminish due to the lack of reinforcement by the winter fronts. Surveys will also document changes in the shoreline position adjacent to the inlet. The shoreline position will be measured along the beach fronting the seawall. The proposed survey will show if the shoreline that receded adjacent to the inlet and along the southern end of the seawall during Hurricane Ike is beginning to advance indicating widening of the beach. Survey Area The survey will include the entrance channel, deposition basin and inland waterway to and including a small section of the GIWW. The offshore region immediately surrounding the channel mouth (0.5 mile box) will also be surveyed. Shoreline position will be measured along Mustang Island and North Padre Island. The Mollie Beattie Coastal Habitat Community (MBCHC) survey will include the channel adjacent to the flats as well as transects stretching across the wetland. Schedule Survey operations are targeted for the last two weeks of February or first week of March dependent on weather and sea conditions. Deliverables A progress report, graphics and support materials will be provided. Exhibit A-2 Pa e2of3 Cost Estimate: February Survey Task Descri tion Time Est. Cost Field Mobilization '/ da $ Incl. Bathymetric channel and nearshore survey Offshore sin le-beam sonar $3,500 er da 1.0 da s 3,500 Channel multibeam sonar @ $4,100 per day 2.0 days 8,200 Surf zone survey with Sled @ $3,500 per day 2.0 days 7,000 Post-processing data 5,300 Bathymetric Channel & Nearshore Survey Sub-total 24,000 Shoreline Position Survey RTK-GPS Topographic Survey @ $ 1,600 1.0 day 1,600 Post-processing data 400 Shoreline Position Survey Sub-total 2,000 Mollie Beattie Coastal Habitat Survey Topographic Survey and littoral boundary survey (wading surve $ 1,600 4.0 days 6,400 Post-processing data 1,600 Mollie Beattie Survey Sub-total 8,000 Basin Revetment Survey RTK-GPS Topographic Survey @ $ 1,600 1.0 day 1,600 Post-processing data 400 Basin Revetment Survey Subtotal 2,000 Surveying subtotal 36,000 Anal sis, Re ortin ,Staff, Benefits, Etc. Anal sis and re ortin 11,000 Su ort staff, data base mana ement 2,000 Benefits/insurance 4,030 IDC 8,685 Analysis, Re ortin ,Staff, Benefits, Etc. Subtotal 25,715 Total $61,715 Exhibit A-2 Pa e3of3 CITY OF CORPUS CHRISTI DISCLOSURE OF INTERESTS City of Corpus Chri~i Ordinance 17112, as amended, requires all persons or firms seeking to do business with the City to provide the following information. Every question must be answered. If the question is not applipble, answerwith'NA'. FlRM NAME: I~1CL(s dl-d"Y~1 Lill III/~ I•iZ1 sTREEr: (a~~ Dc~.~v- lY ~ y~ " cITY: r',~ uS '~1~s~. •~ zIP: ~B~Ff ~ FlRM is: 1. Corporation ^~1~ 'n 2. Partrrership ^ 3. SoleO~w,/ner ^ 4. Assoaation ^ 5. Other ~ ~ JI ~ ~[. I n Sfl ~{l ~~1 ~ ~~~ /~ r.F~-[-~C' ~'~t Gt~l DISCLOSURE QUESTIONS If additional space is necessary, please use the reverse side of this page or attach separate sheet 1. State ftre names of each "employee" of the City of Corpus Christi having an "ownership interest" constituting 3% or more of fhe ownership in fhe above named "firm". Name Job Title and City Deparhnent (rf known) lVI 2. State the names of each "official" of the City of Corpus Christi having an "ownership interest" constituting 3% or more of the ownership in the above named "firm". Name /~~ Title . ++~1 3. Sta6a the names of each "board member" of fhe City of Corpus Christi having an "ownership interest" constituting 3% or more of the ownership in the above named "firm°. Name Board, Comnrission or Committee ns ~~ 4. State the names of each employee w officer of a "consultant" for the City of Corpus•Christi who worked on any matter related to the subject of this contract and has an "ownership interest" constituting 3% or more of the ownership in the above named "firm°. Name Consultant (/~ cERnFlcaTe I certify that all information provided is true and correct as of the date of this statement, that I have not knowingly watrheld dsdosure of any mfonnation requested; and that supplemental statements vnll be promptly submitted to the Cily of Corpus Christi, Texas as changes occur. ^ /~ ,. Certifying Person: >! ~ Title: 1'tSSd~ VP ~1 ~~~~'~~ (Type or Pri) ^^ /1 Signature of Cerfdying. Person: Date: ~'~ h ^ !7 Y