HomeMy WebLinkAboutA010 - Resolution approving Professional Services Agreement with Foth Infrastructure & Environment, LLC, of Cedar Rapids, IA, for the Duff Avenue Corridor Study in an amount not to exceed $100,000ITEM #:11
DATE:07-08-25
DEPT:PW
SUBJECT:PROFESSIONAL SERVICES AGREEMENT FOR
DUFF AVENUE CORRIDOR STUDY
COUNCIL ACTION FORM
BACKGROUND:
North Duff Avenue serves as a key north-south arterial corridor in through Ames, providing
direct access to downtown, Mary Greeley Medical Center, and multiple neighborhoods. While
it functions as a major urban roadway with high traffic volumes and regional connectivity, it is
also lined with residential homes and is situated within historic and established
neighborhoods. This dual identity presents unique challenges related to traffic operations,
pedestrian and bicycle safety and accessibility, and neighborhood livability. Over the years,
concerns have grown around traffic congestion, vehicle speeds, and multimodal
access, prompting the need for a more focused planning effort.
The primary objective of the Duff Avenue Corridor Study is to assess existing and
future conditions and establish a long-term vision for the corridor. The study will
examine Duff Avenue from the railroad crossing south of Main Street to the 16th Street
intersection (approximately one mile in length, see map in Attachment A).
While the study will incorporate analyses and recommendations from existing regional
transportation plans such as Walk Bike Roll Ames and Ames Connect 2050, it will
provide a more detailed, corridor-specific analysis to better inform future roadway and
multi-modal improvement projects.
$80,000 in AAMPO planning funds was programmed in the FY 2026 Transportation
Planning Work Program (TPWP). This requires a local match of $20,000. The City of
Ames Regional Transportation Counts Capital Improvements Program (CIP) has an
available balance of $58,706 in Road Use Tax Funds that can be utilized for the $20,000
local match.
CONSULTANT SELECTION:
Consistent with federal and state procurement regulations governing the use of federal
planning funds, a Request for Proposals (RFP) was issued on April 7, 2025. Per federal
requirements, the RFP did not request fee information to ensure a qualifications-based
selection process. Proposals were evaluated by a selection team composed of City of Ames
and AAMPO staff using the following weighted criteria:
RFP Scoring Criteria:Points
Project Understanding
& Approach:45
1
Project Team & Key
Personnel:20
Previous Experience:20
Understanding of
Study Area/Ames:10
Ability to Perform
Work:5
Proposals were due on May 1, 2025, and thirteen responses were received. The scores, using
the aforementioned criteria, were as follows:
Rank Lead Firm Score
1 Foth 94
2 HDR 93
3 Strand Associates 91
4 Felsburg Holt & Ullevig 90
5 WHKS 88
6 Bolton & Menk 86
7 Stanley Consultants 85
8 Snyder & Associates 84
T9 Shive-Hattery 83
T9 HR Green 83
11 Nilles Associates 79
T12 JEO Consulting Group 73
T12 MSA 73
Given the above rankings, staff negotiated a professional services agreement (see
Attachment B) with the highest ranked firm, Foth Infrastructure & Environment, LLC, of
Cedar Rapids, Iowa in an amount not to exceed $100,000.
PROJECT SCOPE & SCHEDULE:
The key tasks within the consultant's scope of services (fully described in Exhibit A of the
professional services agreement) include:
Traffic operations analysis using current and forecasted traffic volumes, with modeling
for 2025, 2035, and 2050 scenarios
Traffic safety analysis using crash data and nationally recognized methodologies to
identify patterns and potential countermeasures
Speed study using data collected from portable radar units
Multimodal review including pedestrian, bicycle, and transit access and safety
Public and stakeholder engagement support, including one-on-one meetings with
Downtown Ames, the adjacent neighborhood associations, and Mary Greeley
Medical Center; an in-person public open house; and an online public input tool
2
Conceptual corridor design with planning-level cost estimates , including typical
roadway cross-sections, multimodal improvements, intersection enhancements, and a
recommended implementation timeline
Railroad crossing impact evaluation assessing train-related effects on traffic
operations, including delay, queuing, capacity, and emissions
Preparation of a final study report and presentation of findings and
recommendations to the Ames City Council for acceptance
The study is scheduled to begin in July 2025 and conclude by June 2026.
ALTERNATIVES:
1. Approve the professional services agreement with Foth Infrastructure & Environment,
LLC, of Cedar Rapids, IA, for the Duff Avenue Corridor Study in an amount not to exceed
$100,000.
2. Direct staff to negotiate an agreement with another firm.
CITY MANAGER'S RECOMMENDED ACTION:
Based on staff's evaluation of proposals, Foth Infrastructure & Environment, LLC, is the
most qualified firm to conduct the Duff Avenue Corridor Study. Therefore, it is the
recommendation of the City Manager that City Council adopt Alternative No. 1, as described
above.
ATTACHMENT(S):
Attachment A - Study Area Map.pdf
Attachment B - Duff Study PSA.pdf
3
Duff Avenue Corridor Study Area
LEGEND
Study Corridor
Focus Intersection
Main St
6th St
9th St
11th St
13th St
16th St
Mary Greeley
Medical Center
Bandshell
Park
E 12th St
Study includes analysis of potential
pedestrian crossing improvements
at Duff Ave and E 12th St.
Study includes evaluation of
impacts from the at-grade railroad
crossing.
4
Page 1 of 15 Rev. 04/24/2025
AGREEMENT FOR SERVICES
Project Title
(the “Project”): Duff Avenue Study (Main Street to 16th Street) FOTH Project Number: 25A017.00
CLIENT Project Number:
(If applicable)
This Agreement for Services (hereinafter “Agreement”) is made and entered into this 8th day of July, 2025, by and between
FOTH INFRASTRUCTURE & ENVIRONMENT, LLC, (hereinafter “Consultant”) and City of Ames, (hereinafter “Client”), for the
services described under the Scope of Services (the “Services”).
CLIENT: City of Ames
Address: 515 Clark Avenue, Ames, Iowa 50010
Phone No: 515-239-5160 Email Address: kyle.thompson@cityofames.org
Scope of Services: Client hereby agrees to retain Consultant to perform the following Services:
See Exhibit A
Schedule: Services shall be performed according to the following schedule:
See Exhibit B
Compensation: In consideration of these Services, the Client agrees to pay Consultant compensation as follows:
Lump-Sum in the amount of $ .00
Unit Cost/Time Charges (Standard Rates)
Unit Cost/Time Charges (Standard Rates) for an estimated cost of $ 100,000.00
Other as stated here:
Special Conditions (if any):
The attached Agreement for Services Standard Terms and Conditions , along with any Exhibits, is made a part hereof and
incorporated into this Agreement.
IN WITNESS WHEREOF, this Agreement is accepted on the date last written below, subject to the terms and conditions above
stated and the provisions set forth herein.
CLIENT CONSULTANT
Signed:
Signed:
Name (printed): John Haila Name (printed): Carrie Voskuil
Title: Mayor Title: Senior Contracts Manager
Date: Date: July 8, 2025
Signed:
Name (printed): John B. Witt
Title: Lead Traffic Engineer
Date: July 8, 2025
5
Page 2 of 15 Rev. 04/24/2025
AGREEMENT FOR SERVICES
STANDARD TERMS AND CONDITIONS
1.0 Commencement of Services - The Services will commence consistent with the schedule referenced herein or as
otherwise agreed to by the parties, upon receipt of this signed Agreement. If after commencement of the Services,
the Project is delayed for any reason beyond the control of Consultant for more than sixty (60) days, the terms and
conditions contained herein are subject to revision by Consultant.
1.1 Standard of Care - The standard of care for any professional Services performed or furnished by Consultant
under this Agreement will be the care and skill ordinarily used by members of the subject profession practicing under
similar circumstances at the same time and in the same locality. Consultant makes no other warranties, express or
implied, under this Agreement or otherwise, in connection with any Services performed or furnished by Consultant.
Subject to the standard of care, Consultant and its sub-consultants may use and rely upon data, reports, design
elements and information ordinarily or customarily furnished by others, including, but not limited to Client, Client’s
other contractors or consultants, specialty contractors, manufacturers, suppliers, and the publishers of technical
standards.
Consultant shall not be required to sign any document, no matter by whom requested, that would result in the
Consultant having to certify, guarantee, or warrant the existence of conditions whose existence the Consultant cannot
ascertain.
2.0 Client Responsibilities - Client shall provide, at Client’s expense, all criteria, design, and construction standards
including full information as to Client’s requirements for the Project, including all document specifications. The
provision or production of such data or information is not included in the Services, except where explicitly referenced
in the Scope of Services. As stated in Section 1.1, Consultant shall be entitled to rely upon such data and information
in the performance of the Services and shall not be liable for any incorrect advice, judgment or decision based on any
inaccurate information furnished by Client, Client’s agents or Clients other consultants. Such data and information
shall include but not be limited to the following:
a. If not included in the Scope of Services, a complete survey of the Project site which shall include but not be
limited to easements, right-of-way, encroachments, zoning and deed restrictions, subterranean structures or
utilities, existing buildings and improvements.
b. If not included in the Scope of Services, soils data, laboratory tests, reports and inspections of samples,
materials or other items, with appropriate professional interpretations.
c. Legal counseling services necessary for the Project including legal review of the construction contract
documents.
d. Accounting, bond and financial advisory (including, if applicable, “municipal advisor” services as described
in Section 975 of the Dodd-Frank Wall Street Reform and Consumer Protection Act (2010) and the
municipal advisor registration rules issued by the Securities and Exchange Commission), independent cost
estimating, and insurance counseling services.
e. If not included in the Scope of Services, permits and approvals from any authorities having jurisdiction over
the Project.
2.1 Right of Entry - Client shall provide for entry for the employees, agents and subcontractors of Consultant and for
all necessary equipment.
2.2 Client Authorized Representative - Client shall designate a person authorized to act as Client’s representative.
Client or his representative shall receive and examine documents submitted by Consultant and shall be empowered
to interpret and define Client’s policies and render decisions and authorizations in writing promptly to prevent
unreasonable delay in the progress of Consultant’s Services. Client shall give prompt written notice to Consultant
whenever Client observes or otherwise becomes aware of any defect in the Project, Services or other event which
may substantially affect Consultant’s performance of Services under this Agreement.
3.0 Fees and Payment
3.1 Invoice Payment Due - Client shall compensate Consultant for Services and expenses rendered under this
Agreement. Consultant’s fee for Services will be based on Consultant’s rates currently in effect at the time the
Services are done; lump sum or other schedules as identified under the Compensation section. Rates of
Consultant are subject to annual revision. Payment shall be due within thirty (30) days after the date of invoice
describing the Services performed and expenses incurred during the preceding invoice period.
6
Page 3 of 15 Rev. 03/31/2021
3.2 Failure to Pay. Client agrees that timely payment is a material term of this Agreement and that failure to make
timely payment as agreed constitutes a breach hereof. In the event payment for Services rendered has not been
made within thirty (30) days from the date of invoice, Consultant may, after giving seven (7) days’ written notice to
Client and without penalty or liability of any nature, and without waiving any claim against Client, suspend all work
on all Services as set forth herein. Upon receipt of payment in full for Services rendered, plus interest charges,
Consultant will continue with Services. Payment of all compensation due Consultant pursuant to this Agreement
shall be a condition precedent to Client using any of Consultant’s work product and/or deliverables under this
Agreement.
3.3 Interest on Late Payments - In order to defray carrying charges resulting from delayed payments, simple
interest at the maximum rate allowed by law will be added to the unpaid balance of each invoice. The interest
period shall commence thirty (30) days after the date of the original invoice and shall terminate upon date of
payment. Payments will be first credited to interest and then to principal.
4.0 Insurance/Limitation of Consultant’s Liability - Consultant will maintain the following insurance coverages:
a. Worker's compensation insurance pursuant to state law.
b. Comprehensive automobile and vehicle liability insurance covering claims for injuries to members of the
public and/or damages to property of others arising from use of motor vehicles, including onsite and offsite
operations, and owned, non-owned, or hired vehicles, with $1,000,000 combined single limits.
c. Commercial general liability insurance covering claims for injuries to members of the public or damage to
property of others arising out of any covered negligent act or omission of Consultant or of any of its
employees, agents, or subcontractors, with $1,000,000 per occurrence and $2,000,000 in the aggregate.
d. Professional liability insurance, if applicable, of $1,000,000 per claim and in the aggregate.
4.1 Liability Limits - Notwithstanding any provision in this Agreement to the contrary, Client and Consultant each
agree not to assert against the other any claim, demand or suit for consequential, incidental, indirect or special
damages arising from any aspect of the performance or nonperformance of the other party or any third -party
engaged by such other party under this Agreement, and each party hereto waives any such claim, demand or suit
against the other in connection with this Agreement. Notwithstanding any language to the contrary, the total
aggregate liability of Consultant, its employees, officers, directors, shareholders, agents, or sub-consultants, to all
parties related to this agreement shall not exceed $1,000,000.
4.2 Waiver of Subrogation - Both parties hereby waive, and shall cause their respective insurers to waive, all rights
of subrogation against the other party, their employees, officers, directors, shareholders, agents, or sub -consultants
for damages caused by risks covered by insurance, except such rights as they may have to the proceeds of the
insurance.
5.0 Indemnification - Consultant, to the fullest extent permitted by law, shall indemnify and hold harmless Client
and any of Client officers, directors, employees and agents from and against claims, losses, damages, liabilities,
including attorney’s fees and expenses, for third-party claims of bodily injury, sickness or death, and property
damage or destruction to the extent caused by the negligent acts or omissions of Consultant or Consultant’s
separate contractors or anyone for whose acts any of them may be liable, but only to the extent of the negligence.
Nothing in this Section shall obligate Consultant to indemnify any individual or entity from and against the
consequences of that individual’s or entity’s own negligence or willful misconduct. Notwithstanding the forgoing,
Consultant has no obligation to defend or pay indemnitee defense costs incurred prior to a final determination of
liability or to pay any amount that exceeds the proportionate share of Consultant’s finally determined percentage of
liability as determined by a court of competent jurisdiction.
6.0 Hazardous Materials – Not Used.
7.0 Design Without Construction Phase Services – Not Used.
8.0 Documents- Ownership of Work Product and Proprietary Information - The deliverables prepared under this
Agreement shall become the property of the Client only upon completion of the Services and payment in full of all
monies due to Consultant. In the event Client reuses or makes any modifications to the deliverables without prior
7
Page 4 of 15 Rev. 03/31/2021
written authorization of Consultant, the Client agrees, to the fullest extent permitted by law, to indemnify and hold
Consultant, its consultants, agents, officers, directors, shareholders and employees harmless from any claim,
liability or cost (including reasonable attorneys’ fees and defense costs) arising or allegedly arising out of any
unauthorized reuse or modifications of Consultant’s Services, work product, and/or deliverables by the Client or any
person or entity that acquires or obtains the such work product and/or deliverables from or through the Client
without the written authorization of Consultant.
Notwithstanding the foregoing Consultant’s liability to Client for any computer programs, software products, or
related data furnished hereunder is limited solely to the correction of residual errors, minor maintenance, or
update(s) as agreed. CONSULTANT MAKES NO WARRANTIES OF ANY KIND, INCLUDING ANY IMPLIED
WARRANTY OF MERCHANTABILITY OR OF FITNESS FOR ANY PARTICULAR PURPOSE, or against infringement,
with respect to computer programs, software products, related data, technical information, or technical assistance
provided by Consultant under this agreement. The Consultant will take reasonable precautions to prevent the
transmission of any electronic virus, or other contamination with the exchange of electronic media, but Consultant
makes no assurances that those precautions are adequate to assure a contamination free transmission.
Consultant retains title and interest in all of its standard details, plans, specifications, methodologies, tools, and
computation documents, whether in written or electronic form, which have been incorporated into the documents
and instruments of service, but which were developed by Consultant independent of this Agreement.
9.0 Injury to Workers on Project Consultant has no responsibility for site safety on the Project or for the means and
methods employed by Client’s other contractor(s).
10.0 Probable Construction Costs Opinions - Any opinion of the construction cost prepared by Consultant
represents his judgment and is supplied for the general guidance of the Client. Since Consultant has no control
over the cost of labor and material, or over competitive bidding or market conditions, Consultant does not
guarantee that bids or actual construction costs to the Client will not vary from Consultant's opinions of probable
cost. If the Client desires greater assurance as to construction costs, Client shall employ an independent cost
estimator.
11.0 Site Visits – Not Used.
12.0 On-Site Observation – Not Used.
13.0 Termination or Abandonment - If any portion of the Services or Project is terminated or abandoned by Client,
the provisions of these Terms and Conditions in regard to compensation and payment shall apply insofar as
possible to that portion of the work not terminated or abandoned. If said termination occurs prior to completion of
any phase of the Project, the fee for Services performed during such phase shall be based on Consultant’s
reasonable estimate of the portion of such phase completed prior to s aid termination, plus a reasonable amount to
reimburse Consultant for termination costs.
This Agreement may be terminated by either party if the other party fails to fulfill its obligations under this
Agreement through no fault of the terminating party. No such termination may be effected unless the other party is
given not less than ten calendar days written notice of intent to terminate and an opportunity for correcting the
default (plus such additional time as is reasonably necessary to correct the default, other than any payment
default) and for consultation with the terminating party befo re termination. Consultant shall be paid for Services
performed to the termination date including reimbursable expenses due plus termination expenses.
14.0 Jurisdiction - This Agreement shall be governed by the laws of the State of the Project.
15.0 Dispute Resolution - The parties will use good faith efforts to resolve any dispute, controversy or claim arising
out of or relating to this Agreement or the relationship between the parties (a “Dispute”) through negotiation. To
invoke the dispute resolution procedures in this section, one party must give the other party a written notice of its
intent to negotiate. The notice will include a detailed description of the Dispute and a proposed resolution. Within
five (5) business days after delivery of the notice, each party will designate a senior executive with authority to
resolve the Dispute. The designated executives will engage in discussions in an effort to resolve the Dispute. If the
designated executives do not agree on a resolution within twenty (20) days after the disput e notice has been
delivered, the parties may agree to submit the Dispute to non- binding mediation by any mutually agreed-upon
mediator, rules and location. Any mediation fees and expenses will be allocated and paid by the parties equally. If
the parties do not reach a resolution through negotiation or mediation, either party may pursue all remedies
8
Page 5 of 15 Rev. 03/31/2021
available under this Agreement, at law or in equity in a court of competent jurisdiction. Each party hereby
irrevocably waives its rights to trial by jury in any Dispute or proceeding arising out of this agreement or the
transactions relating to its subject matter.
16.0 Waiver - Consultant’s waiver of any term, condition, or covenant or breach of any term, condition, or covenant,
shall not constitute a waiver of any other term, condition, or covenant, or the breach thereof.
17.0 Successors and Assigns - All of the terms, conditions, and provisions hereof shall inure to the benefit of and
be binding upon the parties hereto, and their respective successors and assigns, provided, however, that no
assignment of this Agreement shall be made without written consent of the parties to this Agreement.
18.0 Severability - If any provision of this Agreement is declared invalid, illegal, or incapable of being enforced by
any Court of competent jurisdiction, all of the remaining provisions of this Agreement shall nevertheless continue in
full force and effect, and no provision shall be deemed dependent upon any other provision unless so expressed
herein.
19.0 Force Majeure - Neither party to this Agreement will be liable to the other party for delays in performing the
Services, or for the direct or indirect cost resulting from such delays, that may result from a Force Majeure
condition. Each party will take reasonable steps to mitigate the impact of any force majeure. If Consultant is
delayed in the performance of the Work due to acts, omissions, conditions, events, or circumstances beyond its
control and due to no fault of its own or those for whom Consultant is responsible, the Contract Time(s) for
performance as well as the Contract Price shall be reasonably extended by Change Order. By way of example,
events that will entitle Consultant to an extension of the Contract Time(s) include acts or omissions of Client or
anyone under Client’s control (including separate contractors), changes in the Work, Differing Site Conditions,
Hazardous Conditions, wars, floods, labor disputes, unusual delay in transportation, epidemics, earthquakes,
adverse weather conditions not reasonably anticipated, and other acts of God (Force Majeure Condition). For clarity
purposes, labor shortages or supply chain disruptions resultant from epidemic or pandemic events are specifically
to be considered grounds constituting a Force Majeure Condition. Labor shortages and inefficiencies, delays,
escalation, or cost impacts resulting from labor shortages or supply chain disruptions associated with such an
event shall be considered grounds for a Force Majeure Condition event and shall afford Consultant the opportunity
for schedule and cost relief associated with such an event.
20.0 Customs, Duties, Tariffs – Consultant’s prices herein do not include customs, duties, tariffs and other
importation or exportation fees. In the event that, after the date of Consultant’s proposal and related pricing:
a. any new tariffs, duties, or other import/export fees or governmental charges (“Tariffs”), or modifications of
existing Tariffs are imposed on materials or goods;
b. any changes in applicable laws impact the price and/or availability of labor, materials, or goods; or
c. any occurrence(s) of regional labor escalations or shortages (that could not be reasonably foreseen) that
result from changes to (or changes in the enforcement of) applicable laws,
that are required for the performance of this contract, Consultant shall pass through any additional costs/changes
to Client. Consultant will provide reasonable notice to Client of the imposition of such Tariffs and/or the impact of
such changes, including notice of any cost impacts at the time of levy, any schedule adjustments or impacts (price
included) to the overall project sequencing, and, if available, potential substitution s/alternatives. As its sole
remedy, Consultant can reject the cost/changes proposed by Consultant and terminate the associated Work Order
or scope of work. Such partial termination shall include payment to Consultant for any costs associated with
rejection of the costs/changes (including but not limited to cancellation of third -party contracts/orders). Client
maintains full responsibility, and Consultant assumes no liability, (direct or indirect) resulting from any delay in the
Client providing Client its decision(s) on acceptance and/or rejection of the offer provided to Client as
communicated from Consultant.
21.0 Entire Agreement - This Agreement, and its attachments, constitutes the entire understanding between Client
and Consultant relating to Services to be provided by Consultant and, excepting only confidentiality agreements
between the parties pertaining to the Project, supersede any prior or contemporaneous agreements, promises,
negotiations, or representations not expressly set forth herein. Subsequent modifications or amendm ents to this
Agreement must be in writing and signed by the parties to this Agreement. The foregoing notwithstanding, if the
9
Page 6 of 15 Rev. 03/31/2021
Client, its officers, agents, or employees request Consultant to perform extra work or Services pursuant to this
Agreement, Client will pay for the additional Services even though an additional written Agreement is not issued or
signed. The obligations of Consultant under this Agreement shall survive in accordance with applicable State
statutes.
10
Page 7 of 15
Exhibit A
Scope of Services
The work to be performed by the Consultant under this agreement shall encompass and include detailed work,
services, materials, equipment and supplies necessary to complete analysis and design for the project. The
Consultant shall complete the scope of services in accordance with generally accepted standards of practice and
shall include all work necessary to complete the tasks outlined in this Agreement.
Project Background
The project consists of a traffic study and conceptual design of Duff Avenue from the railroad crossing south of Main
Street to just north of 16th Street, approximately one mile. The Consultant will complete a traffic study that includes
traffic model development, traffic forecasting, capacity and operational analyses, safety analysis, multimodal review,
railroad crossing impact review, and recommended improvements. The Consultant will assist with public outreach
by providing a web-based tool for gathering public input; conducting project input meetings with the Downtown
District, Old Town Historic District, and the Hospital District; and providing support for a public open house. Based on
the results of the study, Client input, and public input, the Consultant will develop a conceptual layout for the corridor
of the preferred alternative along with a planning level cost estimate of the improvements. Finally, the results of the
study and preferred alternative will be presented to City Council. Services include project coordination activities,
traffic engineering services, and conceptual roadway design, as further detailed within this scope of services.
Preliminary design, final design services, bidding services, and construction services are not included within this
agreement, but may be added via addendum or additional agreements between the Client and Consultant.
Completion of this traffic study and conceptual design (this agreement) is scheduled for June of 2026.
I. BASIC SERVICES OF THE CONSULTANT
The Consultant shall communicate on a regular basis with the Client to clarify and define the Client’s
requirements for the Project and review available data. The Client agrees to furnish to the Consultant all
information available with respect to the Client’s requirements, including any special or extraordinary
considerations for the Project or special services needed, and to make available pertinent existing data. The
Consultant shall provide the following basic services regarding the Project.
A. Project Management (approximately one year, July 2025 – June 2026)
The project manager for the Consultant will be responsible for communicating and coordinating with
the Client, monthly progress reporting, meeting minutes, interoffice meetings, memoranda, budget
monitoring, schedule monitoring, and monthly invoicing. This task also includes scheduling of staff,
coordinating with Sub-Consultants, review of progress, and senior review of deliverables.
B. Project Coordination
The Consultant will complete the following project coordination tasks.
1. Design Development Coordination
Maintain communications with the Client to review progress and discuss specific elements
of the traffic study and conceptual design and receive direction from the Client. The
meetings will also serve to establish schedules, develop project goals, establish initial
design parameters, promote a dialog between the various entities, improve the decision -
making process, and expedite study completion and conceptual design development.
Prepare minutes of meetings and keep documentation of other communications. For budget
purposes, the Consultant will attend three (3) meetings that will be attended by one (1) staff
member of the Consultant. An in-person meeting is planned for the Project Kickoff with the
other meetings being virtual.
11
Page 8 of 15
The following meetings are included with the scope of work:
• Design Criteria/Project Kickoff – One (1) meeting
• Traffic Study Results/Concept Development – One (1) meeting
• Preferred Alternative – One (1) meeting
There is one (1) additional meeting included for miscellaneous purposes, and it is
understood by the parties that the Consultant will attend additional meetings as needed to
complete the Project. The Consultant will also maintain communications with the Client with
scheduled virtual meetings.
2. Public Input Tool
Provide a web-based tool hosted by the Consultant for gathering public input about the
corridor. The input will be used in conjunction with the traffic study results and Client input
to develop the preferred conceptual layout for the corridor.
3. Project Stakeholder Meetings
Conduct separate stakeholder meetings (1 per stakeholder) with the Downtown District, Old
Town Historic District, and Hospital District that will be attended by two (2) staff members
of the Consultant. The purpose of the meetings will be to provide a brief overview of the
traffic study results earlier in the process but having an idea of the preferred alternative , as
well as gather information on the concerns, priorities, and specific issues of the
stakeholders. This task includes preparation of the display materials and handout
information for the meeting.
4. Support for Public Open House
Provide Client support for one (1) project information meeting that will be attended by two
(2) staff members of the Consultant. Meeting format will be a collaborative public open
house with the Client. The purpose of the meeting will be to provide a brief overview of the
traffic study results and recommended alternative to the public, as well as gather
information on the concerns, priorities, and specific issues of the public and other affected
parties. This task includes preparation of the display materials and handout information for
the meeting.
Reserving the meeting facility and the mailing of a public notification will be completed by
the Client.
5. Meetings with Local Elected Officials
Conduct one (1) project information meeting that will be attended by two (2) staff members
of the Consultant. The purpose of the meeting will be to provide a brief overview of the traffic
study results and proposed conceptual design to the Mayor and City Council, as well as
gather information on the concerns, priorities, and specific issues of the Mayor and City
Council. This task includes preparation of the display materials and handout information for
the meeting.
Reserving the meeting facility and placement on the Council Agenda will be completed by
the Client.
C. Traffic Engineering Services
The following tasks are based on information in the proposal and discussions with the Client.
Consultant tasks include traffic model development, traffic forecasting, capacity and operational
analyses, roundabout analysis, safety review, railroad crossing analysis, multimodal review, and
recommended improvements.
1. Traffic Data Collection
Most traffic data is available through the City, MPO, and Iowa DOT. The Consultant will
collect and organize the data for utilization in the analysis. The Consultant will identify and
12
Page 9 of 15
collect any remaining data needed to complete the traffic analysis of the corridor. The
following Client data is available or can be collected by the Client:
• Continuous turning movement count data at the five traffic signals in the corridor
• Pedestrian push button actuations at the five traffic signals in the corridor
• StreetLight and Strava Metro data
• ADT counts and truck percentage
• Speed data
• Turning movement counts at the Duff Avenue and 16th Street all-way stop
• Railroad crossing pre-emption data
• Railroad queueing data
Additional data available through other sources includes:
• Iowa DOT ADT data
• CyRide bus stop and ridership data
• MPO travel demand model data
2. Traffic Review Meetings
The traffic review meetings with the Client will serve to establish schedules, promote a
dialog with the Client and other designated parties, improve the decision-making process,
and expedite recommendation development. Prepare minutes of meetings and keep
documentation of other communications. For budget purposes, it is assumed three (3)
meetings will be held remotely by one (1) staff member of the Consultant.
3. Traffic Safety Analysis
The safety analysis shall review crash data in the corridor over the last five years from the
Iowa DOT ICAT program, identifying crash patterns and causes. We will utilize
methodologies from the Highway Safety Manual and the Iowa DOT’s Potential for Crash
Reduction (PCR) to identify potential causal factors and possible countermeasures. Our
team will review the 28 countermeasures and strategies of FHWA’s Proven Safety
Countermeasures Initiative (PSCI) that have proven effective at reducing roadway fatalities
and serious injuries. Lastly, traffic signage, pavement markings, and vehicular and
pedestrian traffic control will be reviewed.
4. Speed Study
The appropriate speed limit for the corridor will be determined using the methodologies in
NCHRP 17-76, FHWA USLIMITS2, and ITE Journal article A Model for Setting Credible Speed
Limits in Urban Areas. Eighty-fifth percentile speeds will be determined from data collected
by Client portable radar units. If needed, speed control measures will be explored.
5. Traffic Model Development & Analysis
The traffic model development and analysis shall incorporate, at a minimum, traffic
engineering principles and standards as presented in SUDAS, Client standards, and national
practices. While preparing the traffic model and analysis, the development of traffic
forecasts will follow the forecasting parameters agreed to by the Client.
a. Model Development
The Consultant will utilize the Synchro network template provided by the Client to
develop a base model of the existing corridor for the two highest peak hours using
2025 traffic data. Client provided information will be used to populate the model.
Additional models will be created in Synchro of the preferred corridor improvements
for the two highest peak hours using 2035 and 2050 traffic forecasted data. The
Highway Capacity Manual 7th Edition (HCM7) principles will be used to evaluate
intersection capacities. Vissim will be utilized to assist in the review of the railroad
crossing and its impact on traffic operations.
13
Page 10 of 15
b. Traffic Forecasting
The Consultant will work with the Ames Area Metropolitan Planning Organization
(AAMPO) to derive 2035 and 2050 traffic volumes from the travel demand model.
These volumes, along with the existing 2025 traffic volumes, will be used in the
traffic model to analyze existing corridor operations and operations of the preferred
corridor alternative.
c. Traffic Operational Analysis – Intersection Level
The Consultant will perform modeling and operational analysis of the project study
area. The modeling will be conducted to serve as a tool to graphically illustrate
future roadway improvements and impacts to traffic operation. This section shall
include the analysis of six (6) intersections within the study area as identified in the
proposal and include:
• Duff Avenue and Main Street
• Duff Avenue and 6th Street
• Duff Avenue and 9th Street
• Duff Avenue and 11th Street
• Duff Avenue and 13th Street
• Duff Avenue and 16th Street
After receiving acceptance of the 2035 & 2050 traffic forecasted volumes from the
Client, the Consultant will analyze the study area intersections for the highest two
peak hours of a typical weekday for the following scenarios:
• Year 2025 – existing conditions
• Year 2035 – preferred corridor alternative
• Year 2050 – preferred corridor alternative
Roundabout analysis is included at the following intersection:
• Duff Avenue and 16th Street
Performance measures assessing the operation of the system will include delay,
volume to capacity ratio, operations of adjacent intersections, maximum
queue/storage lengths and control delay.
Recommendations on intersection geometrics, queue storage lengths, signal
phasing/timing and other improvements will be made as required to provide
acceptable service levels for major movements and the overall intersections.
d. Traffic Operational Analysis – Segment Level
Capacity, speed, flow, and level of service will serve as measures of effectiveness
for the segment analysis. The analysis, using HCM7 procedures, will demonstrate
the impacts of traffic growth on the corridor and identify any improvements needed.
e. Railroad / Traffic Analysis
The railroad crossing and its impact on traffic operations will be analyzed using
Vissim. The performance measures of delay, queuing, capacity, and emissions will
be assessed.
Two scenarios will be analyzed on Duff Avenue from Lincoln Way to 6 th Street. One
Scenario assumes the existing at-grade railroad crossing remains in place, while the
second scenario assumes the railroad crossing has changed to a grade-separated
crossing. The grade-separated scenario will be analyzed to determine changes to
Duff Avenue capacity and operations when vehicles no longer stop and queue for
trains. It is not intended to develop underpass or overpass concepts.
6. Multimodal Review
14
Page 11 of 15
The Consultant will consider the vision, goals, and content of the Walk Bike Roll Ames Bicycle
and Pedestrian Plan when considering options and developing a preferred alternative for
multimodal facilities within the corridor. The Consultant will review all pedestrian crossings
for safety and ADA and PROWAG compliance, including Duff Avenue and East 12th Street.
The Consultant will look for opportunities to improve the connectivity, consistency, and user
friendliness of sidewalks and bicycle facilities.
Pedestrian and bicycle facilities integrate with the transit system. The Consultant will work
with the Client and CyRide to discuss ridership and transit facilities within the corridor and
identify improvement opportunities.
7. Recommendations
The Consultant shall prepare a set of draft recommendations from all the above tasks. The
Consultant will identify proposed improvements or other techniques/treatments that will
mitigate potential impacts to the transportation system surrounding the propos ed
development.
8. Traffic Report
This task consists of preparing a traffic report detailing the analysis of the Duff Avenue
corridor. Additional alternative scenarios that need investigation after the initial base report
findings are completed will require an amendment for additional engineering services. An
electronic copy in Adobe PDF format will be provided to the Client.
a. Traffic Report Outline
The traffic study report submitted to the City of Ames shall contain each of the
following elements:
i. Cover Page with title of the study, client and preparer’s name, address, and
submittal date.
ii. Certification page with an Iowa professionally registered engineer’s seal and
signature.
iii. Executive Summary
iv. Introduction
v. Existing Conditions
a) Study Boundaries
b) Study Roadway and Intersections
c) Traffic Count Data
d) Crash Analysis
e) Speed Study
vi. Future Conditions
a) 2035 and 2050 Projected Traffic Volumes
vii. Operational Analysis
a) Intersection Analysis
b) Segment Analysis
c) Railroad/Traffic Analysis
viii. Multimodal Review
ix. Conclusions/Recommendations
x. Appendix containing supporting analysis information.
9. Quality Control
Involves ongoing quality control input from the Client and senior technical staff throughout
the completion of the traffic analysis, development of the traffic report, and development of
the preferred alternative. The project manager and technical coordinator are responsible for
making specific recommendations and ensuring that critical issues are discussed and
resolved prior to submittal of the preliminary traffic report to the Client. The project manager
and technical coordinator are also responsible for the review of the preliminary traffic report
for technical accuracy, as well as for conformance with the project design criteria.
D. Conceptual Design
15
Page 12 of 15
Complete the conceptual design of the preferred alternative. The conceptual design of Duff Avenue
will include one concept and be based on the analysis and recommendations of the traffic study .
The primary focus will be on developing roadway geometrics , a pavement marking layout, traffic
signal modifications, multimodal modifications, drainage concept, identifying existing and proposed
utility locations, and identifying existing and proposed right-of-way needs. Additional focus will be
on developing planning-level cost estimates for each of the concepts and an implementation
timeline.
1. Develop Design Criteria
The Consultant will summarize and submit to the City the design criteria used to develop the
project. Criteria will conform to the City, SUDAS, and AASHTO design standards. The criteria
to be addressed include:
• Functional classification and design type.
• Design speed and regulatory speed.
• Design vehicles for intersection design.
• Widths of travel lanes, parking areas and right-of-way.
• Preferred and acceptable clear zone requirements.
• Provisions for pedestrian and bicycle facilities.
• Street lighting requirements.
• Utility corridor locations.
Prepare a brief technical memorandum documenting the proposed criteria. The
memorandum will be reviewed and approved by the City.
2. Develop Typical Sections
Develop typical sections for the Duff Avenue improvements in consultation with the City.
Typical sections will include lane widths, curb section/type, sidewalk/trail widths, right-of-
way widths, pavement types, and clear zones. This task also includes identifying potential
storm sewer, sanitary sewer, water main and other utility locations in the typical roadway
sections.
3. Develop Conceptual Geometrics
Develop conceptual geometrics that include intersection return radii, sidewalk/trail
locations, driveway locations, and roundabout geometrics for the project. This task includes
conceptual roundabout geometry at the intersection Duff Avenue with East 16th Street.
4. Pavement Marking Concept
The consultant shall develop a conceptual pavement marking layout showing lane widths,
turn lane locations, turn lane storage lengths, pedestrian crossings, and bike lanes if
applicable.
5. Traffic Signal Modifications
The Consultant shall indicate conceptual traffic signal modifications to major signal
equipment and traffic signal phasing. Major signal equipment includes traffic signal poles,
pedestal poles, push button poles, traffic signal cabinet s, traffic signal heads, pedestrian
heads, and push buttons. Potential utility conflicts with the signal pole footings and mast
arms will be identified.
6. Multimodal Modifications
Develop conceptual multimodal modifications and improvements based on the traffic
analysis, WBRA Bicycle and Pedestrian Plan, and input from the Client, public, and CyRide.
The consultant will look for opportunities to improve connectivity, consistency, and user
friendliness of sidewalks, trails, bicycle facilities, and transit facilities.
7. Roadway Drainage Concept
The Consultant will develop a roadway drainage concept in association with the roadway
improvement concept. The Consultant will complete a conceptual storm sewer design
16
Page 13 of 15
looking at existing storm sewer, roadway geometric configuration, and existing utility
locations. The concept will include approximate location and size of the storm sewer
infrastructure. The Consultant will discuss the existing storm sewer system with the Client
to identify any known problems or deficiencies. Vertical Profiles will not be developed as
part of this task.
8. Water Main and Sanitary Sewer Modification Design
The Consultant will determine the approximate location of water and sanitary infrastructure
and consider the impacts of the proposed improvements on the infrastructure. The
Consultant will discuss the existing water main and sanitary sewer infrastructure s ystems
with the Client to identify any known problems or deficiencies. If improvements are
identified, the Consultant will include a conceptual plan and planning-level cost estimate for
those improvements.
9. Private Utility Research
Contact the utility companies for design level information and mapping within the project
corridor regarding transmission, distribution, and service laterals. This includes information
related to existing facilities and facilities planned for construction.
10. Prepare Conceptual Design Plans
Based on conceptual design, prepare conceptual design level plans depicting proposed
grading, drainage, paving, and other features of the project. The conceptual design plans will
include but not be limited to the following:
• Typical Cross Sections: Develop and assemble typical cross sections to be used for the
proposed improvements as well as a preliminary determination of the limits that each
typical section will apply. The typical cross sections will include but not be limited to the
proposed grading, drainage, and paving improvements.
• Plan Sheets: Develop conceptual plan view sheets that show the existing topography
along with the proposed improvements based on the proposed horizontal alignment.
These sheets will be in the form of a colored strip map that includes aerial photography.
Proposed right-of-way limits will be estimated and shown. Included will be the necessary
CADD work to show the conceptual design features for the proposed improvements.
• Intersection Geometrics: Develop intersection geometric plans. Show major intersection
return geometry, lane widths, and auxiliary lane lengths. Design vehicles will be
determined from the project Design Criteria.
11. Field Review
A field review will be held with the project design team to discuss key issues and design
concepts including intersection control, geometrics, staging, drainage and right-of-way. The
review will determine the completion of the conceptual exhibit design and identify needed
adjustments. Revisions will be noted for discussion with the City.
12. Identify Acquisition Requirements
The Consultant will identify general permanent right-of-way and permanent/temporary
easement needs based on the conceptual design development. The requirements will take
into consideration proposed utilities, construction staging and access, utility relocations and
other critical construction elements.
13. Opinion of Probable Cost
Prepare opinion of probable construction cost for the project concepts. Cost estimates shall
be based on representative major project elements and recent bid information. Detailed
quantity takeoffs will not be developed for the conceptual cost estimate.
14. Implementation Timeline
17
Page 14 of 15
The project corridor currently has a mill and fill pavement surface upgrade programmed. The
Consultant will consider the programmed resurfacing, results of the traffic study including
the traffic forecasts, and the cost estimate to make a recommendation for the preferred
implementation timeline.
15. Quality Control Review
Review the conceptual engineering plan set for technical accuracy, as well as for general
constructability and conformance with the project design criteria.
II. PROJECT DELIVERABLES
The scope of services shall be considered complete upon completion and delivery of the following items to
the satisfaction of the City:
A. Traffic Report
B. Design Criteria Technical Memorandum
C. Typical Cross Section Sheets
D. Colored Strip Map Displaying Conceptual Design Features
E. Intersection Geometric Sheets
F. Cost Opinion of Project Concepts
III. ADDITIONAL SERVICES NOT INCLUDED IN THIS CONTRACT
Additional Services not included as part of this Scope. If authorized, under a supplemental agreement, the
Consultant shall furnish or obtain from others the following services:
A. Preliminary and Final Design Services
B. Project Letting Services
C. Construction Period Services (administration, observation, testing, and staking)
D. Wetland Mitigation and Permitting Services
E. Threatened and Endangered Species Investigations
F. Phase I or Phase II Archaeological Investigations
G. Water Main and Sanitary Sewer Design
H. Real Estate Services
I. Preparation of Acquisition Plats and Easement Documents
J. Subsurface Utility Investigations
IV. CITY’S RESPONSIBILITIES:
The City shall provide the following:
A. Provide existing street and utility plans/record drawings and utility maps for the project area.
B. Provide existing topographic base mapping, aerial photo images, and other available electronic
files pertinent to the project.
C. Provide ADT, turning movement, truck, and pedestrian count data.
D. Provide speed data.
E. Provide traffic signal timing plans and the Synchro network template of the existing corridor.
F. Provide Ames Area MPO Travel Demand Model volume data.
G. Provide access to StreetLight Data’s InSight Platform.
H. Provide CyRide’s transit stop passenger count data.
I. Provide Strava Metro data.
J. Provide railroad pre-emption and train count data.
K. Provide traffic queuing data at railroad crossing.
18
Page 15 of 15
Exhibit B
Schedule
The Consultant shall complete the following phases of the Project in accordance with the schedule shown;
assuming notice to proceed is issued by the City on or before July 8, 2025. If notice to proceed is given at a later
date, time of completion shall be extended accordingly.
Anticipated Contract Approval July 8, 2025
Design Criteria/Project Kickoff Meeting Week of July 14, 2025
Data Collection July 2025 – August 2025
Traffic Analysis September 2025 – December 2025
Public Input Tool November 2025
Project Stakeholder Meetings December 2025
Conceptual Design January 2026 – March 2026
Support for Public Open House April 2026
Traffic Report/Recommendations May 2026
Meeting with Local Elected Officials June 2026
19