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HomeMy WebLinkAboutA001 - Council Action Form dated January 13, 2026ITEM #:16 DATE:01-13-26 DEPT:PW SUBJECT:PROFESSIONAL SERVICES AGREEMENT FOR STORM SEWER SYSTEM ANALYSIS Firm Score (100 max)Fee Rank HDR 90.2 $490,370.00 1 Strand 88.5 $527,540.00 2 Shive-Hattery 87.6 $540,000.00 3 COUNCIL ACTION FORM BACKGROUND: The City of Ames Capital Improvement Plan (CIP) includes an annual Storm Sewer System Analysis program to guide long-term stormwater investments and reduce localized flooding throughout the city. The CIP allocated funding for this effort for four years beginning in FY 2017/18 and ending in FY 2020/21 from the Storm Water Utility Fund, with the intent of completing a data-driven analysis to identify deficiencies in the existing stormwater system and to inform future capital improvement priorities. In order to further refine the scope of the study, staff worked to identify key study areas within the community prior to engaging a consultant. This included gathering baseline information, seeking public input, and coordinating with peer cities that have completed similar stormwater system analyses. To date, staff has expended approximately $82,095 on the collection of field data for existing stormwater infrastructure, and public engagement activities, including conversations and surveys with residents. This data was used to update and refine the City’s GIS stormwater data to improve accuracy and reduce the amount of field data collection required by the selected consultant. Based on public input and staff analysis, six primary study areas (see attached map) were identified where stormwater deficiencies and localized flooding concerns are most prevalent. Focusing on these areas allows the City to complete a meaningful analysis within the available budget while establishing a framework that can be expanded in the future. Staff issued a Request for Proposals (RFP) for professional engineering services to complete the Storm Sewer System Analysis on October 17, 2025. Ten firms submitted proposals on December 1, 2025. A selection committee evaluated each proposal based on the qualifications and criteria outlined in the RFP. The evaluation considered the firms’ technical approach, relevant experience, understanding of the project, ability to meet the City’s needs, and overall value. The evaluation scores are as follows: 1 MSA 87.2 $556,314.50 4 Bolton & Menk 85.1 $599,820.00 5 AECOM 84.5 $464,100.00 6 Stanley 84.2 $523,900.00 7 Snyder 83.8 $596,800.00 8 Kirkham Michael 80.1 $570,000.00 9 RDG 77.9 $545,868.00 10 HDR Engineering, Inc. of Omaha, Nebraska received the highest overall score and was ranked first among the responding firms. HDR’s proposal demonstrates a strong understanding of Ames’ stormwater system and proposes a comprehensive approach that includes field data evaluation, hydrologic and hydraulic modeling, system deficiency analysis, and development of a prioritized list of stormwater improvement projects for inclusion in future Capital Improvement Plans. The proposed scope builds upon the City’s prior data collection efforts and focuses on the six identified study areas to efficiently use available funding. A summary of revenue and projected expenses for the project is shown below: Description Revenue Expenses (estimated) Storm Water Utility Fund $720,000 Data Collection (to date) $ 82,095 Administration (estimated) 50,000 Engineering (this Council action) 490,370 TOTAL $720,000 622,465 Remaining revenue will be prioritized for future study areas. ALTERNATIVES: 1. Approve the professional services agreement with HDR Engineering, Inc. of Omaha, Nebraska for the Storm Sewer System Analysis in the amount not to exceed $490,370. 2. Do not approve the agreement and direct staff to delay or modify the scope of the Storm Sewer System Analysis. 3. Direct staff to reissue the RFP or revise the project approach. CITY MANAGER'S RECOMMENDED ACTION: Based on staff's evaluation using the above criteria, HDR Engineering, Inc. will provide the best value to the City for professional services for the Storm Sewer System Analysis. Approval of this agreement will allow the City to examine stormwater deficiencies within the identified study areas and to develop a prioritized, data-driven framework for future stormwater capital improvement projects aimed at reducing localized flooding and improving system reliability. Therefore, it is the recommendation of the City Manager that the City Council adopt Alternative No. 1, as noted above. 2 ATTACHMENT(S): Exhibit_A_Scope_Schedule_Fee.pdf Exhibit_B_TERMS_AND_CONDITIONS.pdf Storm_Sewer_System_Analysis_Ames_HDR_Agreement_Ver_25_1216a.pdf Storm Sewer Analysis Map.pdf 3 A achment A – Scope of Services, Schedule, Fee | Storm Sewer System Analysis (Version: December 16, 2025) The Scope of Services to be performed by the Consultant shall include the Services and supplies to complete the following tasks: I. SCOPE OUTLINE A. TASK SERIES 100 – Project Management B. TASK SERIES 200 – Exis ng Data Collec on & Review C. TASK SERIES 300 – Asset Management Framework & System Characteriza on D. TASK SERIES 400 – Field Inves ga ons E. TASK SERIES 500 – Hydraulic Modeling & Improvement Projects Defini on F. TASK SERIES 600 – Improvement Projects Priori za on & CIP Development G. TASK SERIES 700 – System Opera ons and Maintenance Plan H. TASK SERIES 800 – Dra and Final Report II. OBJECTIVE This Scope of Services is for the Consultant to engage with engineering services in support of development of the City’s Storm Sewer System Analysis. III. KEY ASSUMPTIONS The following are understood or assumed A. Plat surveys and / or geotechnical explora on will not be required. City GIS plat mapping will be u lized in lieu of plat surveys. B. Wetlands, archeological, historical, or cultural resources inves ga ons and reports will not be required. C. Digital files of all final deliverables will be submi ed to the City. Dra deliverables for review will be submi ed to the City as digital files. D. Available exis ng mapping, photography, and topography will be used to develop the plan. Purchase of this type of informa on or any GIS data will not be required. E. Hydraulic modeling analysis ac vi es will be conducted to evaluate system performance, iden fy system deficiencies, and develop alterna ves as part of the City’s stormwater master plan development. This modeling does not include floodplain/floodway delinea on, revision of any FEMA or USACE permi ng coordina on. F. Evalua on of alterna ve performance will be completed based on exis ng available LiDAR and supplemental survey data gathered and will be developed conceptually. Finished floor eleva ons of individual structures will not be surveyed as part of this study. G. This scope of work does not include any tasks that are part of the FEMA map revision process. H. This scope of work does not include stormwater pump sta on sizing or stormwater pump sta on capacity recommenda ons based on the effect of poten al projects in the basin. 4 I. No detailed modeling will be done for the South Skunk River or Ioway Creek. Tailwater condi ons will be assumed where necessary and modeling effort will focus on City storm sewers upstream of the two major streams. IV. SCOPE OF SERVICE DETAILS Consultant will assist City with Project implementa on by conduc ng the following tasks: A. TASK SERIES 100 – PROJECT MANAGEMENT i. Objec ve: Provide Project Management ac vi es over the Project dura on including planning, organizing, and monitoring Project team ac vi es, preparing and monitoring report produc on standards, a ending mee ngs, budget management, and liaison with City. ii. Engineer Ac vi es: 1. Team Management and Project Control a. Budget and invoice management. b. Resource scheduling, management, and alloca on based on Project schedules and ac vi es. c. Project coordina on. d. Monthly progress reports submi ed to City with each invoice. e. Project closeout. 2. Project Management Plan Develop guidance document (Project Management Plan) for Consultant project team documen ng Project ac vi es, constraints, guidelines, budgets, and procedures. 3. Quality Control a. Facilitate team mee ngs on a regular basis to facilitate communica on flow and project development. b. Conduct a Project Approach & Resource Review with senior technical leaders. At project ini a on Engineer will conduct a project review to discuss technical approach, team resources, status of schedule and deliverables, and project management approach. c. Facilitate independent quality control reviews for project deliverables. iii. Assump ons: 1. Project dura on of 10 months. 2. Project status mee ngs will be conducted in person. iv. Deliverables 1. Monthly invoices and progress reports. 2. Ac on items log for project status mee ngs. 5 B. TASK SERIES 200 – EXISITNG DATA COLLECTION AND REVIEW i. Objec ve: Gather and review exis ng system data to support modeling. ii. Engineer Ac vi es: 1. Task 210 – Project Kick-off Mee ng | Workshop 200-1 a. Ini al Project workshop to affirm the goals for the project and begin the informa onal gathering process. b. Model So ware Selec on. Project workshop (200-1) to review poten al modeling so ware and iden fy the most suitable for the City’s needs. 2. Task 220 – Gather Exis ng Informa on. a. Gather and Review Exis ng Data. GIS data, exis ng drawings, previous studies, and reports etc. b. Develop and maintain Project RFI log. c. Interview City staff to assist in the iden fica on of problem areas. Coincidental with WS 200-1. iii. Assump ons: 1. Mee ngs: a. Workshop 200-1 | Project Kick-off Mee ng. 2. City provides exis ng informa on mely in support of the project schedule. iv. Deliverables: 1. RFI Log 2. Summary content for use in the Task 800 Report (basis of model build). C. TASK SERIES 300 – ASSET MANAGEMENT FRAMEWORK & SYSTEM CHARACTERIZATION i. Objec ve: Establish framework for managing stormwater assets. ii. Engineer Ac vi es: 1. Lead/conduct up to 3 workshops with City Engineering and Opera ons staff to understand system features, condi ons, and issues. a. Workshop 300-1 b. Workshop 300-2 c. Workshop 300-3 2. Establish framework goals of managing the system. 3. Establish parameters of work order system. 4. Recommend commercial products/tools/systems or in-house development by City GIS staff. iii. Assump ons: 1. Mee ngs: a. 300-1 Workshop b. 300-2 Workshop c. 300-2 Workshop 2. City representa ves from Engineer and Public Works a end/par cipate. iv. Deliverables: 1. Workshop Agenda and Summary. 6 2. Relevant Task 300 Content for use in the Task 800 Report. D. TASK 400 – FIELD INVESTIGATIONS i. Objec ve: Collect accurate data for cri cal system components. ii. Engineer Ac vi es: 1. Conduct a Field Inves ga on Planning mee ng with the City. 2. Field Review/Inspec on of up to 368 system structures. 3. Data Management and Review. Engineer will organize the collected data for input and updates of the City GIS by City staff. iii. Assump ons: 1. Mee ngs: a. 400-1 Field Inves ga on Planning Mee ng. 2. The 6 project priority areas account for approximately 60% of the City’s system. City staff have es mated approximately 5% of system structures will have missing or inaccurate data. Consequently, field inves ga on of up to 368 system structures has been included. iv. Deliverables: 1. Field Inves ga on Summary and photos. E. TASK SERIES 500 – HYDRAULC MODELING & IMPROVEMENT PROJECTS DEFINITION i. Objec ve: The objec ve of this task is to prepare a stormwater runoff, deten on, and conveyance evalua on of the six watersheds iden fied within Ames, Iowa. These watersheds are urbanized tributaries to the South Skunk River and Ioway Creek. Areas within these watersheds have experienced flooding in numerous areas from intense local precipita on. The objec ve of this project is to evaluate the current stormwater system condi ons u lizing a hydraulic model, iden fy poten al project concepts and prepare conceptual alterna ves (with cost evalua ons) to improve stormwater management and reduce flood risk within the City. Watershed modeling will be completed to analyze the exis ng and future level of service of the City’s stormwater management infrastructure and evaluate alterna ves to improve stormwater deten on and conveyance capacity and reduce flood damage risks. ii. Engineer Ac vi es: 1. Task 510 – Exis ng Condi on Hydraulic Modeling. a. Model development – rain on grid model. i. Iden fy and digi ze open channels (drainageways) if needed ii. Develop 1D flow network consis ng of storm sewers, open channels, and deten on facili es. Models will include the known streams and major open channels, deten on facili es, and piping networks to include local storm sewer pipes (generally 15-inch diameter and larger) based on available and collected data. Streams, open channels, and deten ons 7 basins will be represented based on the best readily available data, which may include LiDAR and as-built drawings provided by the City. iii. Pipe diameters, invert eleva ons, and pipe materials may be inferred based upon adjacent pipe sec ons and terrain data. Document where inferred or simplifying assump ons are made within the model. iv. Develop a 2D flow domain to model overland flow. Mesh density will be adequate for approxima ng overland conveyance and large-scale hydraulic controls. v. The model will u lize a “grouped inlet” approach, in which the aggregate runoff to several catch basins will load the 1D stormwater conveyance network at a single loca on. When the conveyance capacity is exceeded, surcharge flow will be conveyed on the 2D surface. b. Model Execu on i. The model will be run with the developed, 5- and 10-, 25-, 50- , and 100- year NRCS Midwest storm event type III rainfall distribu ons. The NOAA Atlas 14 rainfall depths will be used in the rainfall distribu on. Results will be analyzed and further adjustments will be made to address model irregulari es that commonly occur during model development. c. Model Valida on i. Use the model to evaluate a historic rainfall event, which had 6-inches of rainfall over 1-hour. ii. Compare model results to damage reports and anecdotal data from the rainfall event. Model results will be compared to city observa ons where present. No addi onal radar rainfall reconstruc on will be completed for model valida on. iii. Evaluate model results. Adjust model parameters to obtain a reasonable fit to the city-collected data. d. Iden fy deficiencies i. Iden fy areas where exis ng storm sewer infrastructure is as follows: ii. Insufficient for exis ng or future surface runoff demand. Level of service needs to be determined with City Staff at Kickoff. e. Modeling Results Mee ng (500-1) i. Schedule and conduct a Modeling Results mee ng with the City to present ini al findings of the modeling effort. Modeling related decisions and assump ons will be summarized. ii. Prepare mee ng agenda, content and summary. f. Develop Concept Plan for Project Improvements i. Develop and model stormwater management improvement projects to mi gate the iden fied deficiencies. These may include enlarged and/or addi onal deten on facili es, new box culvert sec ons with increased capacity, including green infrastructure and low-impact development 8 improvement projects as iden fied within the informa onal gathering phase. g. Modeling Results Mee ng – Alterna ves (500-2) i. Schedule and conduct a Modeling Results Alterna ves mee ng to discuss preliminary concept plan alterna ves for stormwater projects. Modeling related decisions and assump ons will be summarized. ii. Prepare mee ng agenda, content and summary. h. Refine Improvements Alterna ves i. Refine the project concepts discussed at the Modeling Results workshop. Develop a concept-level plan for each project. i. Develop cost es mates for projects iden fied. iii. Assump ons: 1. Mee ngs: a. Workshop 500-1. b. Workshop 500-2. 2. City to provide access to GIS, drawings, studies and other needed data sources. 3. City to provide access to staff that have knowledge of exis ng storm sewer data. 4. Stormwater Basin Plans will be conceptual, planning level for the purposes of assessing exis ng system performance and iden fying capital needs and associated costs. 5. Model inputs and results will be GIS based. No CAD files will be developed or provided. 6. The City will provide exis ng informa on regarding infrastructure, land use, and topography. This includes any flood damage reports. 7. Planning level es mates will not include extensive bid item lists but will rather provide a breakdown of major items required for the respec ve project. 8. Typical design, engineering, con ngency, and infla on factors will be included with projects costs to provide project budget costs for City use. 9. Cost es ma ng will be completed for up to 24 iden fied improvement projects. 10. Assign budget level cost es mates based on similar previous projects and SUDAS work item tabula ons. 11. Final hydraulic modeling files will be provided to the City. 12. The hydraulic model will be developed based on the City’s GIS database and supplemented with survey and as-built data where available. A shapefile documen ng source data will be delivered to the client. This effort will not verify all model inputs (pipe diameters, inverts, and alignments). It is assumed that the data provided is adequate for performing planning-level hydraulic modeling analysis. iv. Deliverables: 1. Summary content developed for use in the Task 800 Report. Model defined, output summary tables and maps, etc. 9 2. Mee ng/Workshop Agenda, Content, and Summary. 3. Dra and final model results (digital files). 4. Final model data (digital files). F. TASK SERIES 600 – IMPROVEMENT PROJECTS PRIORITIZATION & CIP DEVLOPMENT i. Objec ve: The objec ve of this task is to provide a priori zed list of iden fied Capital Improvement Plan projects. ii. Engineer Ac vi es: 1. Improvement Alterna ves Priori za on a. Following the development of the improvement projects and cost es ma ng for the field data gathered (storm pipe condi on) and the modeling results (storm pipe capacity deficiencies), develop a framework to be used to priori ze recommended projects. i. A scoring system will be developed for project priori za on ii. Scoring system may include factors like flood risk, water quality, maintenance cost impacts, and current level of service. b. The project scores will be grouped into three ers as described below: i. Tier 1- Cri cal, urgent projects that are the main features in the watershed stormwater management improvement plan ii. Tier 2- Projects that address local, known stormwater management deficiencies that can be designed to func on with Tier 1 projects. iii. Tier 3- Less-urgent projects that address local deficiencies or provide enhancements to stormwater management in the watershed. 2. Develop and submit a list of iden fied Capital Improvement Plan projects with the following informa on: i. Ranked based on project priori za on. ii. Total expected design and construc on costs. iii. Benefits of the project (flood risk, water quality, lower maintenance burden or cost, etc.), including long-term expecta ons. iv. Poten al outside funding sources (if applicable). 3. CIP Development Mee ng (600-1) a. Schedule and conduct a CIP development mee ng to discuss dra CIP with priori zed projects. iii. Assump ons: 1. Mee ngs: a. Workshop 600-1. 2. City par cipa on in Task mee ng. iv. Deliverables: 1. Priori zed CIP list with costs and benefits. 2. Summary content developed for use in the Task 800 Report. 10 G. TASK SERIES 700 – SYSTEM OPERATION AND MAINTENANCE PLAN i. Objec ve: The objec ve of this task is to provide an ac onable Storm Sewer System Opera on and Maintenance Plan for the City to u lize. ii. Engineer Ac vi es: 1. Conduct workshop (700-1) with Opera ons staff to understand current inspec on and maintenance protocols and prac ces. 2. Review the workshop input and establish best management prac ces and solu ons. iii. Assump ons: 1. Mee ngs: a. Workshop 700-1. 2. City to provide relevant exis ng City informa on and O&M history. 3. The O&M Plan developed will include a matrix tool to iden fy poten al O&M impacts. iv. Deliverables: a. Dra and final O&M Plan. b. Workshop agenda, content and summary. c. Summary content developed for use in the Task 800 Report. H. TASK SERIES 800 – DRAFT AND FINAL REPORT i. Objec ve: The objec ve of this task is to provide a capstone Technical Memorandum (TM) documen ng the outcome of the above tasks and providing the City with an implementable Master Plan for stormwater system improvements. ii. Engineer Ac vi es: 1. Prepare, internally QC review, and submit to City the dra Master Plan TM for City review. 2. Lead Workshop 800-1 which will allow discussion and resolu on of City review comments to the dra Master Plan TM. 3. Prepare and submit to City the final Master Plan TM. iii. Assump ons: 1. Mee ngs: a. Workshop 800-1. 2. Content for the Master Plan TM will have been developed within each respec ve prior task. 3. City will review the dra Report and provide review comments in a mely manner. 4. Ini al an cipated Master Plan TM Table of Contents: a. Execu ve Summary b. Current Stormwater Program (prior studies, known problem areas, O&M, CIP) c. Exis ng System Condi on Assessment (hydraulic model development, deficiencies) 11 d. Capital Improvements Plan e. Proposed Opera ons and Maintenance Plan iv. Deliverables: a. Dra Master Plan TM. b. Final Master Plan TM. c. Workshop agenda, content and summary. 12 Period of Service | Project Milestone Schedule: 01/13/26 Contract Award | No ce To Proceed Received (January 13, 2026 Council Mee ng) 02/13/26 Task 200 Project Kick-off Mee ng | Workshop No. 1 03/25/26 Task 200 Exis ng Data Collec on & Review Complete 04/24/26 Task 300 Asset Management Framework & System Characteriza on Complete 05/08/26 Task 400 Field Inves ga ons Complete 05/29/26 Task 500 Hydraulic Modeling Complete 06/26/26 Task 500 Improvement Projects Defini on Complete 07/24/26 Task 600 Improvement Projects Priori za on & CIP Development Complete 07/24/26 Task 700 Opera ons and Maintenance Plan Complete 08/21/26 Task 800 Submi al of Dra System Analysis Report 09/04/26 Task 800 Dra Report Review Workshop 10/15/26 Task 800 Submi al of Final System Analysis Report 13 Compensa on | Billing Rate Schedule: Fee Summary: Billing Rate Schedule: TOTAL FEE Est. Hours Est. Fee 100 PROJECT MANAGEMENT 208 44,470$ 200 EXISTING DATA COLLECTION & REVIEW 260 43,021$ 300 ASSET MANAGEMENT FRAWEWORK & SYSTEM CHARACTERIZATION 224 44,801$ 400 FIELD INVESTIGATIONS 296 45,760$ 500 HYDRAULIC MODELING & IMPROVEMENT PROJECTS DEFINITION 1308 203,260$ 600 IMPROVEMENT PROJECTS PRIORITIZATION & CIP DEVELOPMENT 228 41,152$ 700 OPERATION & MAINTENANCE PLAN 112 22,171$ 800 DRAFT AND FINAL REPORT 252 45,735$ TOTAL FEE 2,888 490,370$ Resource Type 2026 Bill Rate Project Principal 300 Project Manager 3 275 Project Manager 2 225 Project Manager 1 175 Engineer 1 100 Engineer 2 125 Engineer 3 150 Engineer 4 175 Engineer 5 200 Engineer 6 225 Engineer 7 250 Engineer 8 275 Engineer 9 300 Engineer 10 325 CAD/BIM/GIS 1 90 CAD/BIM/GIS 2 110 CAD/BIM/GIS 3 130 CAD/BIM/GIS 4 150 CAD/BIM/GIS 5 170 CAD/BIM/GIS 6 190 Project Assistant 1 90 Project Assistant 2 110 Project Accountant 1 140 Project Accountant 2 170 14 1 (5/2023) HDR Engineering, Inc. Terms and Conditions for Professional Services 1. STANDARD OF PERFORMANCE The standard of care for all professional engineering, consulting and related services performed or furnished by ENGINEER and its employees under this Agreement will be the care and skill ordinarily used by members of ENGINEER’s profession practicing under the same or similar circumstances at the same time and in the same locality. ENGINEER makes no warranties, express or implied, under this Agreement or otherwise, in connection with ENGINEER’s services. 2. INSURANCE/INDEMNITY ENGINEER agrees to procure and maintain, at its expense, Workers' Compensation insurance as required by statute; Employer's Liability of $250,000; Automobile Liability insurance of $1,000,000 combined single limit for bodily injury and property damage covering all vehicles, including hired vehicles, owned and non-owned vehicles; Commercial General Liability insurance of $1,000,000 combined single limit for personal injury and property damage; and Professional Liability insurance of $1,000,000 per claim for protection against claims arising out of the performance of services under this Agreement caused by negligent acts, errors, or omissions for which ENGINEER is legally liable. If flying an Unmanned Aerial System (UAS or drone), ENGINEER will procure and maintain aircraft unmanned aerial systems insurance of $1,000,000 per occurrence. OWNER shall be made an additional insured on Commercial General and Automobile Liability insurance policies and certificates of insurance will be furnished to the OWNER. ENGINEER agrees to indemnify OWNER for third party personal injury and property damage claims to the extent caused by ENGINEER's negligent acts, errors or omissions. However, neither Party to this Agreement shall be liable to the other Party for any special, incidental, indirect, or consequential damages (including but not limited to loss of use or opportunity; loss of good will; cost of substitute facilities, goods, or services; cost of capital; and/or fines or penalties), loss of profits or revenue arising out of, resulting from, or in any way related to the Project or the Agreement from any cause or causes, including but not limited to any such damages caused by the negligence, errors or omissions, strict liability or breach of contract. The employees of both parties are intended third party beneficiaries of this waiver of consequential damages. 3. OPINIONS OF PROBABLE COST Any opinions of probable project cost or probable construction cost provided by ENGINEER are made on the basis of information available to ENGINEER and on the basis of ENGINEER's experience and qualifications, and represents its judgment as an experienced and qualified professional engineer. However, since ENGINEER has no control over the cost of labor, materials, equipment or services furnished by others, or over the contractor(s') methods of determining prices, or over competitive bidding or market conditions, ENGINEER does not guarantee that proposals, bids or actual project or construction cost will not vary from opinions of probable cost ENGINEER prepares. 4. CONSTRUCTION PROCEDURES ENGINEER's observation or monitoring portions of the work performed under construction contracts shall not relieve the contractor from its responsibility for performing work in accordance with applicable contract documents. ENGINEER shall not control or have charge of, and shall not be responsible for, construction means, methods, techniques, sequences, procedures of construction, health or safety programs or precautions connected with the work and shall not manage, supervise, control or have charge of construction. ENGINEER shall not be responsible for the acts or omissions of the contractor or other parties on the project. ENGINEER shall be entitled to review all construction contract documents and to require that no provisions extend the duties or liabilities of ENGINEER beyond those set forth in this Agreement. OWNER agrees to include ENGINEER as an indemnified party in OWNER’s construction contracts for the work, which shall protect ENGINEER to the same degree as OWNER. Further, OWNER agrees that ENGINEER shall be listed as an additional insured under the construction contractor’s liability insurance policies. 5. CONTROLLING LAW This Agreement is to be governed by the law of the state where ENGINEER's services are performed. 6. SERVICES AND INFORMATION OWNER will provide all criteria and information pertaining to OWNER's requirements for the project, including design objectives and constraints, space, capacity and performance requirements, flexibility and expandability, and any budgetary limitations. OWNER will also provide copies of any OWNER-furnished Standard Details, Standard Specifications, or Standard Bidding Documents which are to be incorporated into the project. OWNER will furnish the services of soils/geotechnical engineers or other consultants that include reports and appropriate professional recommendations when such services are deemed necessary by ENGINEER. The OWNER agrees to bear full responsibility for the technical accuracy and content of OWNER-furnished documents and services. In performing professional engineering and related services hereunder, it is understood by OWNER that ENGINEER is not engaged in rendering any type of legal, insurance or accounting services, opinions or advice. Further, it is the OWNER’s sole responsibility to obtain the advice of an attorney, insurance counselor or accountant to protect the OWNER’s legal and financial interests. To that end, the OWNER agrees that OWNER or the OWNER’s representative will examine all studies, reports, sketches, drawings, specifications, proposals and other documents, opinions or advice prepared or provided by ENGINEER, and will obtain the advice of an attorney, insurance counselor or other consultant as the OWNER deems necessary to protect the OWNER’s interests before OWNER takes action or forebears to take action based upon or relying upon the services provided by ENGINEER. 7. SUCCESSORS, ASSIGNS AND BENEFICIARIES OWNER and ENGINEER, respectively, bind themselves, their partners, successors, assigns, and legal representatives to the covenants of this Agreement. Neither OWNER nor ENGINEER will assign, sublet, or transfer any interest in this Agreement or claims arising therefrom without the written consent of the other. No third party beneficiaries are intended under this Agreement. 8. RE-USE OF DOCUMENTS All documents, including all reports, drawings, specifications, computer software or other items prepared or furnished by ENGINEER pursuant to this Agreement, are instruments of service with respect to the project. ENGINEER retains ownership of all such documents. OWNER may retain copies of the documents for its information and reference in connection with the project; however, none of the documents are intended or represented to be suitable for reuse by OWNER or others on extensions of the project or on any other project. Any reuse without written verification or adaptation by ENGINEER for the specific purpose intended will be at OWNER's sole risk and without liability or legal exposure to ENGINEER, and OWNER will defend, indemnify and hold harmless ENGINEER from all claims, damages, losses and expenses, including attorney's fees, 15 Terms & Conditions for Professional Services 2 (5/2023) arising or resulting therefrom. Any such verification or adaptation will entitle ENGINEER to further compensation at rates to be agreed upon by OWNER and ENGINEER. 9. TERMINATION OF AGREEMENT OWNER or ENGINEER may terminate the Agreement, in whole or in part, by giving seven (7) days written notice to the other party. Where the method of payment is "lump sum," or cost reimbursement, the final invoice will include all services and expenses associated with the project up to the effective date of termination. An equitable adjustment shall also be made to provide for termination settlement costs ENGINEER incurs as a result of commitments that had become firm before termination, and for a reasonable profit for services performed. 10. SEVERABILITY If any provision of this agreement is held invalid or unenforceable, the remaining provisions shall be valid and binding upon the parties. One or more waivers by either party of any provision, term or condition shall not be construed by the other party as a waiver of any subsequent breach of the same provision, term or condition. 11. INVOICES ENGINEER will submit monthly invoices for services rendered and OWNER will make payments to ENGINEER within thirty (30) days of OWNER's receipt of ENGINEER's invoice. ENGINEER will retain receipts for reimbursable expenses in general accordance with Internal Revenue Service rules pertaining to the support of expenditures for income tax purposes. Receipts will be available for inspection by OWNER's auditors upon request. If OWNER disputes any items in ENGINEER's invoice for any reason, including the lack of supporting documentation, OWNER may temporarily delete the disputed item and pay the remaining amount of the invoice. OWNER will promptly notify ENGINEER of the dispute and request clarification and/or correction. After any dispute has been settled, ENGINEER will include the disputed item on a subsequent, regularly scheduled invoice, or on a special invoice for the disputed item only. OWNER recognizes that late payment of invoices results in extra expenses for ENGINEER. ENGINEER retains the right to assess OWNER interest at the rate of one percent (1%) per month, but not to exceed the maximum rate allowed by law, on invoices which are not paid within thirty (30) days from the date OWNER receives ENGINEER’s invoice. In the event undisputed portions of ENGINEER's invoices are not paid when due, ENGINEER also reserves the right, after seven (7) days prior written notice, to suspend the performance of its services under this Agreement until all past due amounts have been paid in full. 12. CHANGES The parties agree that no change or modification to this Agreement, or any attachments hereto, shall have any force or effect unless the change is reduced to writing, dated, and made part of this Agreement. The execution of the change shall be authorized and signed in the same manner as this Agreement. Adjustments in the period of services and in compensation shall be in accordance with applicable paragraphs and sections of this Agreement. Any proposed fees by ENGINEER are estimates to perform the services required to complete the project as ENGINEER understands it to be defined. For those projects involving conceptual or process development services, activities often are not fully definable in the initial planning. In any event, as the project progresses, the facts developed may dictate a change in the services to be performed, which may alter the scope. ENGINEER will inform OWNER of such situations so that changes in scope and adjustments to the time of performance and compensation can be made as required. If such change, additional services, or suspension of services results in an increase or decrease in the cost of or time required for performance of the services, an equitable adjustment shall be made, and the Agreement modified accordingly. 13. CONTROLLING AGREEMENT These Terms and Conditions shall take precedence over any inconsistent or contradictory provisions contained in any proposal, contract, purchase order, requisition, notice-to-proceed, or like document. 14. EQUAL EMPLOYMENT AND NONDISCRIMINATION In connection with the services under this Agreement, ENGINEER agrees to comply with the applicable provisions of federal and state Equal Employment Opportunity for individuals based on color, religion, sex, or national origin, or disabled veteran, recently separated veteran, other protected veteran and armed forces service medal veteran status, disabilities under provisions of executive order 11246, and other employment, statutes and regulations, as stated in Title 41 Part 60 of the Code of Federal Regulations § 60-1.4 (a-f), § 60-300.5 (a-e), § 60-741 (a-e). 15. HAZARDOUS MATERIALS OWNER represents to ENGINEER that, to the best of its knowledge, no hazardous materials are present at the project site. However, in the event hazardous materials are known to be present, OWNER represents that to the best of its knowledge it has disclosed to ENGINEER the existence of all such hazardous materials, including but not limited to asbestos, PCB’s, petroleum, hazardous waste, or radioactive material located at or near the project site, including type, quantity and location of such hazardous materials. It is acknowledged by both parties that ENGINEER’s scope of services do not include services related in any way to hazardous materials. In the event ENGINEER or any other party encounters undisclosed hazardous materials, ENGINEER shall have the obligation to notify OWNER and, to the extent required by law or regulation, the appropriate governmental officials, and ENGINEER may, at its option and without liability for delay, consequential or any other damages to OWNER, suspend performance of services on that portion of the project affected by hazardous materials until OWNER: (i) retains appropriate specialist consultant(s) or contractor(s) to identify and, as appropriate, abate, remediate, or remove the hazardous materials; and (ii) warrants that the project site is in full compliance with all applicable laws and regulations. OWNER acknowledges that ENGINEER is performing professional services for OWNER and that ENGINEER is not and shall not be required to become an “arranger,” “operator,” “generator,” or “transporter” of hazardous materials, as defined in the Comprehensive Environmental Response, Compensation, and Liability Act of 1990 (CERCLA), which are or may be encountered at or near the project site in connection with ENGINEER’s services under this Agreement. If ENGINEER’s services hereunder cannot be performed because of the existence of hazardous materials, ENGINEER shall be entitled to terminate this Agreement for cause on 30 days written notice. To the fullest extent permitted by law, OWNER shall indemnify and hold harmless ENGINEER, its officers, directors, partners, employees, and subconsultants from and against all costs, losses, and damages (including but not limited to all fees and charges of engineers, architects, attorneys, and other professionals, and all court or arbitration or other dispute resolution costs) caused by, arising out of or resulting from hazardous materials, provided that (i) any such cost, loss, or damage is attributable to bodily injury, sickness, disease, or death, or injury to or destruction of tangible property (other than completed Work), including the loss of use resulting therefrom, and (ii) nothing in this paragraph shall obligate OWNER to indemnify any individual or entity from and against the consequences of that individual’s or entity’s sole negligence or willful misconduct. 16. EXECUTION This Agreement, including the exhibits and schedules made part hereof, constitute the entire Agreement between ENGINEER and 16 Terms & Conditions for Professional Services 3 (5/2023) OWNER, supersedes and controls over all prior written or oral understandings. This Agreement may be amended, supplemented or modified only by a written instrument duly executed by the parties. 17. ALLOCATION OF RISK OWNER AND ENGINEER HAVE EVALUATED THE RISKS AND REWARDS ASSOCIATED WITH THIS PROJECT, INCLUDING ENGINEER’S FEE RELATIVE TO THE RISKS ASSUMED, AND AGREE TO ALLOCATE CERTAIN OF THE RISKS, SO, TO THE FULLEST EXTENT PERMITTED BY LAW, THE TOTAL AGGREGATE LIABILITY OF ENGINEER (AND ITS RELATED CORPORATIONS, SUBCONSULTANTS AND EMPLOYEES) TO OWNER AND THIRD PARTIES GRANTED RELIANCE IS LIMITED TO THE LESSER OF $1,000,000 OR ITS FEE, FOR ANY AND ALL INJURIES, DAMAGES, CLAIMS, LOSSES, OR EXPENSES (INCLUDING ATTORNEY AND EXPERT FEES) ARISING OUT OF ENGINEER’S SERVICES OR THIS AGREEMENT REGARDLESS OF CAUSE(S) OR THE THEORY OF LIABILITY, INCLUDING NEGLIGENCE, INDEMNITY, OR OTHER RECOVERY. ENGINEER’S AND SUBCONSULTANTS’ EMPLOYEES ARE INTENDED THIRD PARTY BENEFICIARIES OF THIS ALLOCATION OF RISK. 18. LITIGATION SUPPORT In the event ENGINEER is required to respond to a subpoena, government inquiry or other legal process related to the services in connection with a legal or dispute resolution proceeding to which ENGINEER is not a party, OWNER shall reimburse ENGINEER for reasonable costs in responding and compensate ENGINEER at its then standard rates for reasonable time incurred in gathering information and documents and attending depositions, hearings, and trial. 19. NO THIRD PARTY BENEFICIARIES Except as otherwise provided in this Agreement, no third party beneficiaries are intended under this Agreement. In the event a reliance letter or certification is required under the scope of services, the parties agree to use a form that is mutually acceptable to both parties. 20. UTILITY LOCATION If underground sampling/testing is to be performed, a local utility locating service shall be contacted to make arrangements for all utilities to determine the location of underground utilities. In addition, OWNER shall notify ENGINEER of the presence and location of any underground utilities located on the OWNER’s property which are not the responsibility of private/public utilities. ENGINEER shall take reasonable precautions to avoid damaging underground utilities that are properly marked. The OWNER agrees to waive any claim against ENGINEER and will indemnify and hold ENGINEER harmless from any claim of liability, injury or loss caused by or allegedly caused by ENGINEER’s damaging of underground utilities that are not properly marked or are not called to ENGINEER’s attention prior to beginning the underground sampling/testing. 21. UNMANNED AERIAL SYSTEMS If operating UAS, ENGINEER will obtain all permits or exemptions required by law to operate any UAS included in the services. ENGINEER’s operators have completed the training, certifications and licensure as required by the applicable jurisdiction in which the UAS will be operated. OWNER will obtain any necessary permissions for ENGINEER to operate over private property, and assist, as necessary, with all other necessary permissions for operations. 22. OPERATIONAL TECHNOLOGY SYSTEMS OWNER agrees that the effectiveness of operational technology systems and features designed, recommended or assessed by ENGINEER (collectively “OT Systems”) are dependent upon OWNER’s continued operation and maintenance of the OT Systems in accordance with all standards, best practices, laws, and regulations that govern the operation and maintenance of the OT Systems. OWNER shall be solely responsible for operating and maintaining the OT Systems in accordance with applicable laws, regulations, and industry standards (e.g. ISA, NIST, etc.) and best practices, which generally include but are not limited to, cyber security policies and procedures, documentation and training requirements, continuous monitoring of assets for tampering and intrusion, periodic evaluation for asset vulnerabilities, implementation and update of appropriate technical, physical, and operational standards, and offline testing of all software/firmware patches/updates prior to placing updates into production. Additionally, OWNER recognizes and agrees that OT Systems are subject to internal and external breach, compromise, and similar incidents. Security features designed, recommended or assessed by ENGINEER are intended to reduce the likelihood that OT Systems will be compromised by such incidents. However, ENGINEER does not guarantee that OWNER’s OT Systems are impenetrable and OWNER agrees to waive any claims against ENGINEER resulting from any such incidents that relate to or affect OWNER’s OT Systems. 23. FORCE MAJEURE ENGINEER shall not be responsible for delays caused by factors beyond ENGINEER’s reasonable control, including but not limited to delays because of strikes, lockouts, work slowdowns or stoppages, government ordered industry shutdowns, power or server outages, acts of nature, widespread infectious disease outbreaks (including, but not limited to epidemics and pandemics), failure of any governmental or other regulatory authority to act in a timely manner, failure of the OWNER to furnish timely information or approve or disapprove of ENGINEER’s services or work product, or delays caused by faulty performance by the OWNER’s or by contractors of any level or any other events or circumstances not within the reasonable control of the party affected, whether similar or dissimilar to any of the foregoing. When such delays beyond ENGINEER’s reasonable control occur, the OWNER agrees that ENGINEER shall not be responsible for damages, nor shall ENGINEER be deemed in default of this Agreement, and the parties will negotiate an equitable adjustment to ENGINEER’s schedule and/or compensation if impacted by the force majeure event or condition. 24. EMPLOYEE IMMUNITY The parties to this Agreement acknowledge that an individual employee or agent may not be held individually liable for negligence with regard to services provided under this Agreement. To the maximum extent permitted by law, the parties intend i) that this limitation on the liability of employees and agents shall include directors, officers, employees, agents and representatives of each party and of any entity for whom a party is legally responsible, and ii) that any such employee or agent identified by name in this Agreement shall not be deemed a party. Specifically, in the event that all or a portion of the services is performed in the State of Florida, the following provision shall be applicable: THE PARTIES ACKNOWLEDGE THAT PURSUANT TO APPLICABLE FLORIDA STATUTES AN INDIVIDUAL EMPLOYEE OR AGENT MAY NOT BE HELD INDIVIDUALLY LIABLE FOR NEGLIGENCE WITH REGARD TO SERVICES PROVIDED UNDER THIS AGREEMENT. To the maximum extent permitted by law, the Parties intend i) that this limitation on the liability of employees 17 Terms & Conditions for Professional Services 4 (5/2023) and agents shall include directors, officers, employees, agents and representatives of each Party and of any entity for whom a Party is legally responsible, and ii) that any such employee or agent identified by name in this Agreement shall not be deemed a Party. The Parties further acknowledge that the Florida statutes referred to above include but are not limited to: §558.0035(1)(a)-(e);§471.023(3)(an engineer is personally liable for negligence except as provided in § 558.0035); §472.021(3) (surveyor and mapper); §481.219(11)(architect and interior designer);§481.319(6) (landscape architect); and §492.111(4) (geologist). 18 Agreement for Professional Services 1 3/2025 SHORT FORM AGREEMENT BETWEEN OWNER AND HDR ENGINEERING, INC. FOR PROFESSIONAL SERVICES AGREEMENT NUMBER ____________ THIS AGREEMENT is made as of this 13th day of January, 2026, between City of Ames, Iowa (“OWNER”), and HDR ENGINEERING, INC., (“ENGINEER” or “CONSULTANT”) for services in connection with the project known as the Storm Sewer System Analysis Project (“Project”); WHEREAS, OWNER desires to engage ENGINEER to provide professional engineering, consulting and related services (“Services”) in connection with the Project; and WHEREAS, ENGINEER desires to render these Services as described in SECTION I, Scope of Services. NOW, THEREFORE, OWNER and ENGINEER in consideration of the mutual covenants contained herein, agree as follows: SECTION I. SCOPE OF SERVICES ENGINEER will provide Services for the Project, which consist of the Scope of Services as outlined on the attached Exhibit A. SECTION II. TERMS AND CONDITIONS OF ENGINEERING SERVICES The HDR Engineering, Inc. Terms and Conditions, which are attached hereto in Exhibit B, are incorporated into this Agreement by this reference as if fully set forth herein. SECTION III. RESPONSIBILITIES OF OWNER The OWNER shall provide the information set forth in paragraph 6 of the attached “HDR Engineering, Inc. Terms and Conditions for Professional Services.” SECTION IV. COMPENSATION Compensation for ENGINEER’S services under this Agreement shall be on the basis of Time and Materials with a Not To Exceed fee. - Time and Materials shall mean actual labor hours at the rates included in Exhibit A, to be paid as total compensation for each hour an employee works on the project, plus Reimbursable Expenses. - ENGINEER’S Not To Exceed fee will be: Four Hundred Ninety Thousand, Three Hundred Seventy Dollars ($490,370). 19 Agreement for Professional Services 2 3/2025 The amount of any sales tax, excise tax, value added tax (VAT), or gross receipts tax that may be imposed on this Agreement shall be added to the ENGINEER’S compensation as Reimbursable Expenses. Payroll Cost shall mean salaries and wages, (basic and overtime) paid to all personnel engaged directly on the Project, plus the cost of customary and statutory benefits including, but not limited to, social security contributions, unemployment, excise and payroll taxes, worker’s compensation, health and retirement benefits, sick leave, and vacation and holiday pay applicable thereto. Direct Labor Cost shall mean salaries and wages, (basic and overtime) paid to all personnel engaged directly on the Project. The Direct Labor Costs and the factor applied to Direct Labor Costs will be adjusted annually as of the first of every year to reflect equitable changes to the compensation payable to Engineer. Reimbursable Expense shall mean the actual expenses incurred directly or indirectly in connection with the Project for transportation travel, subconsultants, subcontractors, technology charges, telephone, telex, shipping and express, and other incurred expense. ENGINEER will add zero percent (0%) to invoices received by ENGINEER from subconsultants. SECTION V. PERIOD OF SERVICE Upon receipt of written authorization to proceed, ENGINEER shall perform the services within the time period(s) described in Exhibit A. Unless otherwise stated in this Agreement, the rates of compensation for ENGINEER’S services have been agreed to in anticipation of the orderly and continuous progress of the project through completion. If any specified dates for the completion of ENGINEER’S services are exceeded through no fault of the ENGINEER, the time for performance of those services shall be automatically extended for a period which may be reasonably required for their completion and all rates, measures and amounts of ENGINEER’S compensation shall be equitably adjusted. 20 Agreement for Professional Services 3 3/2025 SECTION VI. SPECIAL PROVISIONS IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the day and year first written above. CITY OF AMES, IOWA “OWNER” BY: NAME: TITLE: ADDRESS: HDR ENGINEERING, INC. “ENGINEER” BY: NAME: Ann Williams, P.E. TITLE: Senior Vice President ADDRESS: 1917 67th Street Omaha, NE 68106 21 EXHIBIT A SCOPE OF SERVICES 22 EXHIBIT B TERMS AND CONDITIONS 23 Storm Water System Analysis 1 3 t h S t S t o n e B r o o k eNorthridge H e i g h ts A l l e n v i e w S o m e r s e t V i l l a g e M e e k e r N o r t h K i n g -A m N o r t h w o o d -O v e r l a n d H e i g h t s 69 30 30 Li nc o l n Wa y C oldwater Go l f C ours e S tate For es t Nurs er y We s tb e n d R e i m a n We s t Oa k -W o o d -Fo r e s t Oa k -R i v e r s i d e M e a d o w G l e n R o a d C o l l e g e C r e e k -Ol d A m e s M i d d l e S c h o o l B r o o k s i d e A m e s 35 No r th River V alley B l o o m i n g t o n 35 US Highway 30 2 4 0 t h S t Legend Analysis Areas ¯ 0 4,000 Feet 1 3 2 4 5 6 24