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HomeMy WebLinkAboutRES.2588.01-10-2011 BILL NO. 11-01 RESOLUTION NO. ��� A RESOLUTION AUTHORIZING THE CITY MANAGER TO EXECUTE ADDENDUM NO. 2 TO AMENDMENT NO. 1 TO THE GENERAL ENGINEERING SERVICES AGREEMENT WITH HORNER & SHIFRIN, INC. , FOR THE CAPE GIRARDEAU LEVEE SYSTEM CERTIFICATION, IN THE CITY OF CAPE GIRARDEAU, MISSOURI BE IT RESOLVED BY THE COUNCIL OF THE CITY OF CAPE GIRARDEAU, MISSOURI, AS FOLLOWS : ARTICLE 1 . The City Manager, for and on behalf of the City of Cape Girardeau, Missouri, is hereby authorized to execute Addendum No. 2 to Amendment No. 1 to the General Engineering Services Agreement with Horner & Shifrin, Inc . , for the Cape Girardeau Levee System Certification, in the City of Cape Girardeau, Missouri . A copy of said Addendum is attached to this Resolution and made a part hereof . PASSED AND ADOPTED THIS � DAY OF /�G 20�_. ( _, Harry E. Rediger, Mayor ATTEST: ��1RAND�� � v�4 � � k -.,, � i �:;��sh�. L/� Gay L. Conrad, City C1 � �, i��� `.�i `�' _r- ��\`� �' �' '���� r-/�- �, =_;�..,_ '�v �.,:�s��*�. Y�t��� �p'' �y �'ag �1 {r �siy�Y /'G+ V��I� Horner& Shifrin, Inc. 5200 Oakiand Ave. St. Louis MO 63110-1490 (314) 531-4321 • Fax: (314) 531-6966 Addendum No. 2 (Phase 3) to Amendment No.1 Levee System Investipation to General Engineering Services Agreement befinreen the CITY OF CAPE GIRARDEAU, MISSOURI ("Owner'), and HORNER & SHIFRIN, INC. ("Engineer"). SECTION 1 -SCOPE OF WORK Introduction: The OWNER requires assistance in conducting technical reviews, investigating field conditions and locating instructions and records relating to the Mississippi River flood protections system and documentation of evidence showing conformance of the City's Mississippi River flood protections system with 44CFR 65-10. The ultimate use of this documentation will be to provide the basis for subsequent certification of such compliance, thus enabling the system to be re-accredited by the Federal Emergency Management Agency ("FEMA") for flood mapping purposes. Objectives: The objectives of this work are described in the major tasks below. The Engineer's efforts will inc/ude the following tasks necessary for reaccreditation but it is expressly understood by the OWNER and ENGINEER that these efforts by the Engineer shall not be construed as "certifying"compliance with 44CFR 65-10 or a guarantee of the performance of the flood control system(s). Such "certification" can not be offered until professional liability insurance policies are rewritten to include coverage for this work. In order to furnish evidence of compliance with 44CFR 65-10, Engineer shall accomplish the major tasks: ITEMS OF WORK Cape Girardeau Levee Data Assembly and Analysis 1. General Description: The levee system is located on the right bank of the Mississippi River between river miles 51.6 and 52.8 and was completed in 1964. a. Floodwalls make up 1.15 miles of the total flood protection. b. They consist of inverted T shapes on rock and in natural and select compacted earth c. There are 5 closure gates within the floodwall. i. Two railroad gates. ii. Three road gates. d. Levees make up the other 0.41 miles of protection. e. Two pump stations (at Merriwether and Mill Streets) provide for interior drainage during flood events. 2. Data Assemblv and Analvsis: Notwithstanding any other requirements of the contract it is understood by the parties that Assembly and Analysis of Data pertaining to the Levee System by Horner 8� Shifrin will be used to determine whether, to the best of our knowledge and belief, the leve� system was designed and was constructed in accordance with sound engineering practices to provide protection from the base flood (a "positive finding"). This determination will be based on information made available to us on the original design and construction, as well as testing and engineering studies performed by H8�S or its subconsultants. The determination does not Certify any greater degree of confidence of performance, expressed or implied. Both parties further recognize that it is impossible to find hidden defects or flaws that could lead to local failures of the levee system. It is also understood that during a flood event, it is common practice, and a responsibility of the Levee Owner to "fight the flood", by which is meant that the levee system will need constant surveillance and immediate action if local failures present themselves. It is further understood that H�S is not under contract to perform continued surveillance of the levee system to ensure the condition of the levee does not deteriorate or change over time from the conditions at the time these services were performed. a. Any elements that present an unacceptable risk to the line of protection in the opinion of H&S will require repair or replacement prior to issuing a report of positive finding. b. The report summarizing the Data Assembly and Analysis will include a statement limiting the validity of its contents to five years from the date of the report. c. If repairs or additional construction are required in order for issuing a positive finding, the engineering for those actions is not included in this proposal. A Supplemental Agreement will be required. d. This Data Assembly and Analysis study will only consider the 1% (100 year) flood event per FEMA requirements for accreditation. It is understood by H&S that Levee System was designed for the .02% (500 year) flood event. 3. Horner& Shifrin intends to provide the Data Assembly and Analysis report based on the principles of the ACOE "Certification of Levee Systems for the National Flood Insurance Program" version dated September 12, 2007. The procedure outlined in this document will satisfy FEMA requirements. 4. References for the analysis of the existing levee system will be as follows: a. Engineer Regulation (ER) 1110-2-100, 15 February 1995, Periodic Inspection and Continuing Evaluation of Completed Civil Works Structures. b. ER 1110-1-12,21 July 2006, Quality Management. c. ER 1110-2-1405, 30 September 1982, Hydraulic Design for Local Flood Protection Projects. d. Engineering Manual (EM) 1110-2-1418, 31 October 1994, Channel Stability Assessment for Flood Control Projects. e. EM 1110-2-1601,30 June 1994, Hydraulic Design of Flood Control Channels. f. EM 1110-2-1416, 15 October 1993, River Hydraulics g. EM 1110-2-1913,30 April 2000, Design and Construction of Levees. h. EM 1110-1-1904, 30 September 1990, Settlement Analysis. i. EM 1110-2-1901,30 April 1993, Seepage Analysis and Control for Dams. j. ETL 1110-2-569, 1 May 2005, Engineering and Design, Design Guidance for Levee Under-seepage k. EM 1110-2-1902, 31 October 2003, Slope Stability. I. EM 1110-2-1908,30 June 1995, Instrumentation of Embankment Dams and Levees m. EM 1110-2-1914,29 May 1992, Design, Construction and Maintenance of Relief Wells. n. ER 1110-2-1806, 31 July 1995, Earthquake Design and Evaluation for Civil Works Projects. o. EM 1110-2-2705,31 March 1994, Structural Design of Closure Structures for Local Flood Control Protection Projects. p. EM 1110-2-2007,30 April 1995, Structural Design of Concrete Lined Flood Control Channels. q. EM 1110-2-2100,01 December 2005, Stability Analysis of Concrete Structures. r. EM 1110-2-2104,20 Aug 03 (Change 1), Strength Design for Reinforced Concrete Hydraulic Structures. s. EM 1110-2-2105,31 May 1994 (Change 1), Design of Hydraulic Steel Structures. t. EM 1110-2-2502,29 September 1989, Retaining and Flood Walls. u. EM 1110-2-2504,31 March 1994, Design of Sheet Pile Walls. v. EM 1110-2-2705,31 March 1994, Structural Design of Closure Structures for Local Flood Protection Projects. w. EM 1110-2-2902, 31 March 1998 (Change 1), Conduits, Culverts, and Pipes. x. EM 1110-2-2906,1 5 January 1991, Design of Pile Foundations. y. EM 1110-2-6054,01 December 2001 , Inspection, Evaluation and Repair of Hydraulic Steel Structures. z. EM 1110-2-2002, 30 June 1995, Evaluation and Repair of Concrete Structures. aa.ER 1110-2-8157,31 Jan 1997, Responsibility for Hydraulic Steel Structures. bb.EM 1110-2-3105,30 November 1999, Mechanical and Electrical Design of Pumping Stations cc. EM 1110-2-3102, February 1995, General Principles of Pumping Station Design and Layout. dd.Engineering Technical Letter(ETL) 1110-2-571, 10 April 2009, Guidelines for Landscape Planting and Vegetation Management at Levees, Floodwalls, Embankment Dams, and Appurtenant Structures. ee.Engineering Circular(EC) 1110-2-6065, 1 July 2007, Engineering and Design - Comprehensive Evaluation of Project Datum. ff. EC 1110-2-6058, 20 November 2005, Stability analysis of Concrete Structures. gg.Engineering Regulation (ER) 1110-2-8160, 1 March 2009, Policies for Referencing Project Elevation Grades to Nationwide Ve�tical Datum. 5. Survev. GPS equipment and MoDOT RINEX data was used to provide cross- sections along the length of the wall at 100 feet on center, and at gates and other areas of special interest. Similar equipment and background data will be used in the event that supplemental surveys or location documentation is required. 6. Geotechnical BorinQs and Laboratorv Reports. Shannon &Wilson, Inc. has proposed providing 18 borings, including one landside toe, one crest, and one riverside toe boring for each earthen levee reach (9 borings) one at each closure structure plus an additional at the north closure structure (6 borings) and 3 borings at the floodwall monoliths.. a. See the Shannon &Wilson proposed scope for the details of the geotechnical program. b. See the October 20, 2010 for additions to the subconsultant scope retarding additional borings and the addition of geophysical testing. 7. Interior Drainaqe. An in-depth review of all of the Flood Insurance Study for the City of Cape Girardeau is not required. H&S will check for"obvious errors" per the ACOE Engineering Technical Letter (draft) 1110-2-570. a. For existing levees a reanalysis of interior stages is not included in this study proposal. If the existing levee is considered adequate, the coincident interior flooded area should already be mapped. b. To verify validity of the existing interior drainage system the following task items will be performed: i. Review of the depicted local flooding and its sources ii. Comparison of currently mapped areas and the volumes they contain with estimated runoff from their contributing rainfall areas iii. Review of the pumping capacity and gravity outlet characteristics of the stormwater conveyance through the flood protection line to the river 8. Hvdraulics/Hvdroloav (Freeboard). H&S will provide a comparison of the hydraulic elevations of the Mississippi River(based on the USACE UMRSFFS that is the basis of the DFIRMs) to the elevation of the floodwall (or levee as applicable) and determine the availability of the required freeboard. This approach complies with FEMA 44CFR65.10 rather than the alternate USACE probability method. 9. Closures. We understand that there are 5 closure structures a. H&S will review the designs of the new closures based on the references above. b. H8�S will review the design of the existing closures based on current criteria referenced above. The proposed hours contained herein assume that calculations are available from the ACOE for review. 10.Flood Walls._ H&S will review the existing calculations available for the flood walls to verify the design loading conditions in the original engineering analysis and design meet current criteria, and a general review of the wall design meets current criteria. a. Structural Stability criterion shall be based on EC 1110-2-6058. b. Structural Strength criteria shall be based on EM1110-2-2104. 11.As-Built Plans. The plans provided by the ACOE will be compared to the existing construction. This task will be accomplished by comparing the plans to our findings during the field inspection. . a. There are no available records to determine which method of construction was used: impervious clay or dredged material with an impervious clay cap. b. A plan set will be organized so that elements of the system that have been reconstructed or replaced will be correctly included. c. Provide an As-Built Plan set to FEMA. This set will be As-Built only to the extent that we are provided the information. 12.Geotechnical Analvsis. Assess embankment protection using procedures described in USACE Engineering Manual 1110-2-1913 (Design and Construction of Levees) so that no appreciable erosion of the levee embankment can be expected during the base flood and that anticipated erosion will not result in failure of the levee embankment or foundation directly or indirectly through reduction of the seepage path and subsequent instability. The factors to be addressed in such analyses include, but are not limited to: a. Expected flow velocities (especially in constricted areas); b. Expected wind and wave action; c. Ice loading; � d. Impact of debris; e. Slope protection techniques; � f. Duration of flooding at various stages and velocities; g. Embankment and foundation materials; h. Levee alignment, bends, and transitions; and i. Levee side slopes. 13. Geotechnical Evaluation: Analyze embankment and foundation stability using procedures described in USACE Engineering Manual 1110-2-1902 (Slope Stability) to demonstrate that seepage into or through the levee foundation and embankment during loading conditions associated with the base flood will not jeopardize embankment or foundation stability. Factors to be addressed shall be: a. Depth of flooding; b. Duration of flooding; c. Embankment geometry and length of seepage path at critical locations; d. Embankment and foundation materials; e. Embankment compaction; f. Penetrations; g. Other design factors affecting seepage (e.g., drainage layers); h. Other design factors affecting embankment and foundation stability (e.g., berms). i. Review corrugated metal pipe (CMP) inspection records and reports. 14.Geotechnical Evaluation (Settlement Analvsis). Assess the potential and magnitude of future losses of freeboard as a result of levee settlement and demonstrate that freeboard will be maintained within the minimum freeboard standards using procedures described in USACE Engineering Manual EM 1110-1-1904 (Settlement Analysis). This analysis must address: a. Embankment loads, b. Compressibility of embankment soils, c. Compressibility of foundation soils, " d. Age of the levee system, and e. Construction compaction methods. 15.Electrical & Mechanical. Pertains to system pump stations. Condition assessment is the analysis method to be used in the data assembly and analysis to determine failure modes of pump stations and drainage structures. The results of Periodic Inspection shall be incorporated by reference unless changes have been made between the Periodic Inspection and this data ' assembly. .In which case inspections should follow the same process as done during the Periodic Inspections The following list of items contributes to pump station failure modes and should be considered in certification data requirements: a. plant building b. pumps c. motors, engines, fans, gear reducers, etc. d. power supply e. megger testing on pump motors f. motor control center g. enclosures, panel, conduit and ducts h. circuit breakers i. instruments j. sumps/wet well k. intake and discharge pipes I. flap gates/flap valves/pinch valves m. trash racks n. sluice/slide gates o. fuel systems for pump engines 16.Site Investigations. Conduct site visit to collect pertinent information to support the certification data requirements or identify areas that need further analysis. Tasks to accomplish this scope Item: a. Assemble an inspection team comprised of disciplines similar to the periodic inspection team under the ICW program. b. Walk the entire length of the levee system to physically inspect all aspects of the system. 17.Sewer Inspections. There are sewers of various sizes along the Protection System. If it becomes advisable based on inability to directly inspect the condition of the sewers, a contract supplemental agreement may be necessary. 18. EmerQency Response Plan & Status . a. Review the ERP. b. Make Recommendations for improvement if we recognize opportunities. 19.Probabilitv of Failure and Consequences not in scope. This is a probabilistic approach to failure analysis from the "possible interaction of the levee system components"and is based on the Failure Mode Analysis as applied to dam safety investigation contained in the US Dept. of the Interior"Dam Safety Risk Analysis Methodolog�'. This analysis is not required by FEMA. 20.Operations Plans and Criteria. a. Levee systems must be maintained in accordance with an officially adopted maintenance plan, and a copy of this plan must be provided to FEMA. The maintenance plan must document the formal procedure that ensures that the stability, height, and overall integrity of the levee and its associated structures and systems are maintained. b. The maintenance plan must include the following minimum criteria: c. A list of maintenance activities to be perFormed; d. Frequency of their perFormance; and e. Person by name or title responsible for their performance. 21.Data Assemblv and Analvsis a. Write first draft of Findings of Data Assembly and Analysis (DAA) i. Coordinate with City of Cape Girardeau on any needed modifications prior to issuance of the Findings. b. Prepare As-Built drawings and exhibits for draft DAA c. Edit and write final DAA Findings d. Edit drawings and exhibits for final DAA Findings 22. Not Included: a. The cost of Railroad Protective Liability Insurance. b. Mapping of utilities. Services ENGINEER will provide necessary narrative documentation, maps and exhibits, and other information which may be required to support the statements and conclusions reached. ENGINEER will also communicate with state and federal agencies as needed, and provide such civil and hydraulic engineering analyses necessary to support the statements and conclusions. Coordination ENGINEER will pertorm the above work on the basis of information furnished by OWNER. SECTION 2— ESTIMATED COST Based upon the above-referenced SCOPE OF WORK, we estimate the cost to furnish the items within Phase 3 of the scope to be $304,000. RESPONSIBILITIES OF OWNER It is ENGINEER's understanding that OWNER will provide the following assistance, information, and/or related elements: A. Assistance by placing at ENGINEER's disposal all available current information pertinent to this assignment; including previously developed plans, specifications, reports, permits, and other data. , B. Appropriate liaison with the OWNER'S staff involved in this effort. C. Reasonable access to other data and records related to this assignment that ENGINEER may determine a need for. OWNER shall be responsible for, and ENGINEER shall rely on correctness of information, drawings, etc. made available by the OWNER, without the need for verification. COMPENSATION A. Amount of Payment and Statements 1. Engineer proposes to complete the above Scope of Services at our hourly rates described in Attachment A to the estimated amount in Section 2 above. In the event that additional work is required, OWNER will be informed and the additional work will not be pertormed without express written consent of OWNER. 2. Statements from ENGINEER to OWNER requesting progress payments shall be prepared and transmitted for payment in the manner prescribed in the Terms and Conditions below. B. The terms of compensation and other terms and conditions governing this work shall be as defined by General Engineering Services Agreement dated May 5, 2009 except as modified herein. SCHEDULE ENGINEER proposes to complete the work defined herein within 8 months following OWNER's notice to proceed with the above described services. The adherence to this schedule is, of course, contingent on timely receipt from the OWNER of information needed by the ENGINEER to carry out this assignment, prompt review and return of all documents submitted to OWNER by ENGINEER for comment/approval, and the physical accessibility and completion of elements subject to inspection and review. LIMITATION OF LIABILITY Limitation of Liability. In recognition of the relative risks, rewards, and benefits of the Project to both OWNER and ENGINEER, the total liability, in the aggregate, of ENGINEER and ENGINEER's CONSULTANTS as well as of their respective officers, directors, employees, or agents, or any of them, to OWNER and anyone claiming by, through or under OWNER, for any and all injuries, claims, losses, expenses or damages whatsoever arising out of or in any way related to the services provided under this Agreement, including but not limited to the negligence, errors, omissions, strict liability or breach of contract of ENGINEER or ENGINEER'S consultants as well as their respective officers, directors, employees, or agents, or any of them, to the fullest extent permitted by law, shall be limited to and shall not exceed liability coverage described in Paragraph H.4.of the General Services Agreement to which this assignment is Amendment 2 of Addendum 1. . THIRD PARTY BENEFICIARY LANGUAGE No Third Party Beneficiaries. This Agreement is not intended to confer upon any person other than the Parties any rights or remedies hereunder. We sincerely appreciate this opportunity to be considered for professional services for the City of Cape Girardeau. If there are any questions concerning our proposal, please contact either of the undersigned. If this proposal is acceptable, please sign and return one copy to us for our files. Thank you for your consideration of Horner& Shifrin. Respectfully Submitted, . � �Z�� � , William P. Clarke e Rovak Date President ��' Project Manager . (,���C��GD�. � /9 � ��'ott Me er Ga Conrad Date City M City Clerk �` � ��' . /�,��• , �� \��� � � G ,��a � t � �y .V�m`'��,-.�-._� 1� ;�. r,. 1��t).-;'�^ U .v ,��.J���If; �f� � ��f 1� I I I �' � , �,,,�� .'� � ea��.,4,� 7�7 1• �'��L�� COS7 ESTINATE WORKSHEET FOR: CITY OF CAPE OIRARDEAU Phas�S,Adde�Wum N2 fo AmencMeM No.7 Lavee Syctam ImeWgation LEVEE DATA ASSESSMENT ENGINEERIN(i FEE ESTIMATE FEMA LABOR: Tuk Task L�bw Level IM�n Task Dascrlotion M_H. oC,� PEx PM POc PM CT PE EmE q P-2 P-2 P-J PI T.� P•6 P-7 WP-2 Compil�E�ciating Oata Material request from USCOE and Cape 0 EO 0 0 0 0 0 0 0 0 Collecl and catabpue data 0 i0 0 0 0 0 D 0 Revfew USCOE dela 8 5704 0 2 4 0 0 0 Reviaw City W Cepe Girardeau dete 8 5T04 0 2 4 0 0 Dssiyn C�iterla 81G VIWt ' - Phyafcal inapeGion of levee and ibodwall 4 t42B 0 �� 0 4 0 0 0 Phyaical inapedion W cbaure atrucWres B 3858 0 0 B 0 0 0 Physical inapeclion of pump statione B 5956 0 0 B 0 0 0 Surveying 0 SO 0 0 Fleld Reporte 10 f988 0 0 8 0 0 0 2 HydnWlaantl HY�bOY Enlwtlon Identify bfitlge bcatans and polentiel flow constActlons from aeAal phatogrephs 8��� 5862 0 � 1 4 4 0 0 0 Check wete�-suAece elevatbns o1 the Dese flood using eziating FIRM and D-FIRMs 12 f1,208 0 2 4 0 8 0 0 Compere water-surtace levels to levee and floodwall elevations 10 51,000 0 2 4 4 0 0 0 SU+wYuM Ew1uNMn' Stablllty analyais W levee end 1loodwell 130 513,492 0 � 3A 32 �0 84 0 0 Strenglh enelyels of levee and Iloodwall 132 513,706 0 34 34 0 64 0 0 Closure sWchxe enalysis 132 $13,706 0 34 34 0 84 0 0 Submit cert�ed as-buitt plans 20 51,910 0 0 10 0 10 0 0 (i�obeM�teal Evduulan (prndlnp Ilne Ihm bNOWJ Assess embanlarient erosron 0 SO Analyze embankmerrt and foundetion staWity 0 SO Settlement analyais � S� Etkl+kM ahd M�olIiNW Closiue structure eveluation 78 SB,62B 0 16 80 � 0 0 0 ��0 Pump station evaluetion 76 58,828 0 78 80 0 0 0 0 Int�dor Dnimp� , ' Rewew W the dapiGeE locel flaoding and ds sources 20 52,204 0 B 4 0 8 0 �0 Compere mepped areas entl volumes w/eetimaletl nxiofl fran contribulfng areas 18 52,144 0 70 4 0 4 0 0 Review of pumping capacily&gravky ouliet charac[eristics of conveyance system 24 52,632 0 8 8 0 B 0 0 Oparadon PU�u anA CA[erla Evalaute Operation Plen fw doaure struGures 18 31,528 0 0 B 0 8 0 0 EveWete Opera[ion Plan for inleria drainage system 18 E7,52e 0 0 8 0 6 0 0 Malntenane�Plana and CrlteAa Eveluete MWntenance Plens for levee system and aM compone�ts 24 52,448 0 B 0 16 0 0 ProJect AdmlMstntlon and Management MeeOngc 10B a10,449 12 8 24 0 24 40 0 QuaBty assurence and contrd 140 519,910 48 46 46 0 0 0 0 Correspondence end record keeping/coordination with subconsultaMs 72 59,580 12 0 60 0 0 0 0 Prepare Leve�Dah AaeessmeM Report 0 0 Wnte first drak of Levee Defa Report � B2 570,380 16 30 24 0 0 0 12 Prepare tlrewinps and exhibita for dreR repoR 4B E3,552 0 0 0 48 0 0 0 Edil ard write finel edition of LDA 52 SB,B08 12 �6 t8 0 0 0 8 Edit drewinqs and exhibits faflnal LDA 18 E1,1B4 0 0 0 18 0 0 0 TOTAI MANHOURS: 1,275 100 0 277 480 72 284 40 22 TOTAL ESTIMATED LABOR COSTS: 5140,SS2 EXPENSES: TMaI Personnel Classiflcatfon �euend � Unit Cost Surveying Equiprnent Rertlal: — EO PEx Projed Executive Compule�Use Reimbwsement(CADD): 60 51,020 POc Project QAK�C Mileage: 380 S1B0 PM Projecl Menager Reprotluction 8 Photocopy: — I200 PE Project Enpinaer Long Dist.Telephone 8 Fax: — SO EnvE Enviro.Engineer Air Fere&Cer Renlal: 0 SO CT CAD/SurveyTechrician Travel Subsistence: 0 SO CI Cletical Field Equipment Rental Reenbursemen[: -- 30 Misc Direct Expenses: -- 7500 Expenses-fee: — TOTAL ESTIMATED DIRECT EXPENSES: {7.800 SUBCON9ULTANTFEE3:SAY 5146,80500 meAcup et 10 0% S14 6B1 TOTAL ESTIMATED NOT•TO-EXCEED CO3T: 5�04 208 December2010