2023 InTrans Annual Report (5 MB)
The InTrans annual report for the 2023 calendar year highlights features on a variety of topics: center and program activities; major accomplishments; committee involvement; awards and honors; events; work by faculty, staff and students; and InTrans by the numbers.
2022 InTrans Annual Report (3 MB)
The InTrans annual report for the 2022 calendar year highlights features on a variety of topics: center and program activities; InTrans by the numbers; major accomplishments; awards and honors; committee involvement; events; and work by faculty, staff and students.
2021 InTrans Annual Report (8 MB)
The InTrans annual report for the 2021 calendar year highlights features on a variety of topics: center and program activities; InTrans by the numbers; major accomplishments; awards and honors; events; work by faculty, staff and students; and committee involvement.
2020 InTrans Annual Report (6 MB)
The InTrans annual report for the 2020 calendar year highlights features on a variety of topics: center and program activities; major accomplishments; events; work by faculty, staff and students; InTrans by the numbers; awards and honors; committee involvement; and stakeholders and IDIQs.
2019 InTrans Annual Report (1 MB)
The InTrans annual report for the 2019 calendar year highlights features on research projects and programs, events, staff and student awards, research reports and InTrans by the numbers.
2018 InTrans Annual Report (2 MB)
The InTrans annual report for the fiscal year of July 2017 to June 2018 highlights features on research projects and programs, events, staff and student awards, personnel announcements, research reports and InTrans by the numbers.
Iowa LTAP at 40 Years—Then and Now (9 MB)
Booklet commemorating Iowa LTAP's journey over the past 40 years, highlighting programs and resources, Technology News, throwback tech, staff, and stats.
Iowa LTAP at 40 Years—Then and Now (9 MB)
Booklet commemorating Iowa LTAP's journey over the past 40 years, highlighting programs and resources, Technology News, throwback tech, staff, and stats.
InTrans Brand Brochure (1 MB)
InTrans 30-Year Timeline Brochure (497 KB)
Performance History of Concrete Overlays in the United States (Optimized for fast web viewing–2023) (5 MB)
Technical summary for an FHWA-sponsored project that provides a brief history of concrete overlay construction in the United States and summarizes details of 17 concrete overlay projects across the country
Targeted Overlay Pavement Solutions (TOPS): Concrete Overlay Case Studies (2022)
A series of FHWA-sponsored case studies summarizing the design, construction, and performance of various types of concrete overlays
BIM for Infrastructure Case Studies (2020)
Three case studies for an FHWA-sponsored project that cover the overall Building Information Modeling (BIM) for Infrastructure approach in large-scale projects
Highlights the publications (print and online), education, demonstration, and outreach conducted over the five-year period in which the project was dedicated to accelerated implementation and development of concrete pavement technologies.
The Design-Builder’s Guide to Design Management: A Playbook for the Industrial Sector
Charles Pankow Foundation-sponsored playbook intended to help owners, designers, and builders of design-build projects achieve greater success by understanding and fully leveraging the unique role of the design integration manager in the industrial sector
The Design-Builder’s Guide to Design Management: A Playbook for the Federal Sector
Charles Pankow Foundation-sponsored playbook intended to help owners, designers, and builders of design-build projects achieve greater success by understanding and fully leveraging the unique role of the design integration manager in the federal sector
Manual that presents commentary explaining the context and rationale for the recommendations provided in AASHTO R 101
The Design-Builder’s Guide to Design Management: A Playbook for the Water/Wastewater Sector
Charles Pankow Foundation-sponsored playbook intended to help owners, designers, and builders of design-build projects achieve greater success by understanding and fully leveraging the unique role of the design integration manager in the water/wastewater sector
Unticketing Implementation Guide (712 KB)
Brief guide that offers advice for Iowa communities that wish to implement their own version of Unticketing Cerro Gordo, an IHRB-sponsored demonstration project that explored whether compliance with traffic laws can be improved by incentivizing safe driving behavior while leaving in place existing sanctions against unsafe driving behavior
The Design-Builder’s Guide to Design Management: A Playbook for the Aviation Sector
Charles Pankow Foundation-sponsored playbook intended to help owners, designers, and builders of design-build projects achieve greater success by understanding and fully leveraging the unique role of the design integration manager in the aviation sector
FHWA-sponsored interim guide that offers several strategies for material selection and proportioning that transportation agencies, contractors, and concrete suppliers can use to reduce the cradle-to-gate embodied carbon emissions of paving concrete
The Design-Builder’s Guide to Design Management: A Playbook for the Highway Sector
Charles Pankow Foundation-sponsored playbook intended to help owners, designers, and builders of design-build projects achieve greater success by understanding and fully leveraging the unique role of the design integration manager in the highway sector
The Design-Builder’s Guide to Design Management
Charles Pankow Foundation-sponsored guide intended to help owners, designers, and builders of design-build projects achieve greater success by understanding and fully leveraging the unique role of the design integration manager
Helical Pile Foundation Guide for Bridge Structures (9 MB)
Guide that provides bridge engineers and designers with direction and specifications on helical pile foundation implementation for bridges
Pavement Structural Analysis Tool (PSAT) for Iowa Local Roads (3 MB)
User guide for an IHRB-sponsored project that describes a systematic procedure on how to use the Pavement Structural Analysis Tool (PSAT) that helps local agencies more effectively make decisions related to routine pavement analysis, design, and asset management practices and to support their communication related to pavement needs both with the public and with elected officials
Concrete Pavement Preservation Guide (3rd Edition–Optimized for fast web viewing–2022) (15 MB)
Third edition of a guide that provides guidance and information on the selection, design, and construction of cost-effective concrete pavement preservation treatments
Concrete Pavement Preservation Guide (3rd Edition–2022) (71 MB)
Third edition of a guide that provides guidance and information on the selection, design, and construction of cost-effective concrete pavement preservation treatments
Guide to Concrete Overlays of Asphalt Parking Lots (2nd Edition–Optimized for fast web viewing–2022) (6 MB)
Second edition of a guide that provides information for decision-makers and practitioners about selecting, designing, and constructing successful concrete overlays on existing asphalt parking lot pavements that serve public, commercial, or multifamily residential buildings
Quality Control for Concrete Paving: A Tool for Agency and Industry (2021) (21 MB)
Guide intended to serve as a tool that both contractors and agency personnel can use, and discusses common agency QC requirements, continuous improvement activities, and the benefits for contractors of good quality control
Guide intended to serve as a tool that both contractors and agency personnel can use, and discusses common agency QC requirements, continuous improvement activities, and the benefits for contractors of good quality control
Guide to Concrete Overlays (4th Edition–2021) (44 MB)
Fourth edition of a guide that presents the basic principles that a pavement engineer needs to design and construct concrete overlays on existing asphalt, composite, and concrete pavements
Guide to Concrete Overlays (4th Edition–Optimized for fast web viewing–2021) (10 MB)
Fourth edition of a guide that presents the basic principles that a pavement engineer needs to design and construct concrete overlays on existing asphalt, composite, and concrete pavements
Guide to Lightweight Cellular Concrete for Geotechnical Applications (2021) (18 MB)
Guide from the Portland Cement Association and National Concrete Pavement Technology Center that provides information on the materials, properties, design, proper handling, and applications of lightweight cellular concrete (LCC) for geotechnical applications
Guide from the Portland Cement Association and National Concrete Pavement Technology Center that provides information on the materials, properties, design, proper handling, and applications of lightweight cellular concrete (LCC) for geotechnical applications
Guide to Cement-Stabilized Subgrade Soils (2020) (20 MB)
Guide from the Portland Cement Association and National Concrete Pavement Technology Center that describes the characteristics, uses, and benefits of cement-stabilized subgrades and presents methods for geotechnical evaluation, mix design, construction, and field testing
Guide to Cement-Stabilized Subgrade Soils (Optimized for fast web viewing–2020) (4 MB)
Guide from the Portland Cement Association and National Concrete Pavement Technology Center that describes the characteristics, uses, and benefits of cement-stabilized subgrades and presents methods for geotechnical evaluation, mix design, construction, and field testing
Guide to Concrete Trails (2019) (44 MB)
Ready Mixed Concrete (RMC) Research & Education Foundation-sponsored guide on the design, construction, and maintenance of concrete trails and paths
Guide to Concrete Trails (Optimized for fast web viewing–2019) (5 MB)
Ready Mixed Concrete (RMC) Research & Education Foundation-sponsored guide on the design, construction, and maintenance of concrete trails and paths
Second edition of a manual that is intended as both a training tool and a reference to help concrete paving engineers, designers, quality control personnel, contractors, suppliers, technicians, and tradespeople bridge the gap between the most recent research and practice to optimize the performance of concrete for pavements.
Second edition of a manual that is intended as both a training tool and a reference to help concrete paving engineers, designers, quality control personnel, contractors, suppliers, technicians, and tradespeople bridge the gap between the most recent research and practice to optimize the performance of concrete for pavements.
Practical guide to concrete pavement assessments and distress solutions including pavement distress identification, causes, prevention, and repair
Practical guide to concrete pavement assessments and distress solutions including pavement distress identification, causes, prevention, and repair
Recycling Concrete Pavement Materials: A Practitioner’s Reference Guide (2018) (14 MB)
Guidebook for an FHWA Office of Pavement Technology-sponsored project that explored the possibilities, pitfalls, and practical considerations for the use of recycled concrete aggregate (RCA) in pavement construction to provide a more sustainable concrete pavement option for state and local agencies.
Guide for the Development of Concrete Overlay Construction Documents (2018) (10 MB)
Guide for an Office of Pavement Technology-sponsored guidebook that assists local and state concrete pavement managers in the development of a concrete overlay project by offering in-depth information on construction drawings, specifications, costs, and design challenges to consider during the process.
Final guide for nonwoven geotextile fabric used as a separation layer to prevent cracks and other distresses in the underlying pavement from compromising the performance of a new unbonded jointed concrete overlay over existing jointed and continuously reinforced concrete pavements
40-page guide to provide a resource for pavement owners, designers, and contractors to design and construct successful thin concrete overlays as a longer-term preservation solution for concrete pavements with prematurely deteriorating joints
Weather Index User’s Guide (379 KB)
Guide for Partial-Depth Repair of Concrete Pavements (2012) (5 MB)
34-page guide to help practitioners understand how to select, design, and construct successful partial-depth repairs of concrete pavements
Iowa Drainage Law Manual (3 MB)
Project Selection Guidance for Cold In-Place Recycled Pavements (207 KB)
Guidance document for an IHRB-sponsored research project that provides guidance on considering project for possible CIR use in Iowa, based on research and typical practices in the state and also national and international research
Pavement Preservation Checklist Series (2019)
23-booklet checklist series; nos. 17 through 23 cover concrete pavement preservation strategies
Real-Time Smoothness Quick Reference Index (2018) (66 KB)
As a companion to the real-time smoothness pocket reference guide, an index was developed and designed to be printed as a magnet that could be affixed to the frame of a slipform paver.
Real-Time Smoothness Pocket Reference (2018) (3 MB)
A pocket reference guide was developed to deliver key information in the field about real-time smoothness installation, daily startup and shutdown, and recommendations for maximizing the benefits of the technology.
Sustainable Pavements: CRCP Across Texas (MAP brief—Summer 2024) (3 MB)
MAP brief that delves into the successful deployment of CRCP throughout Texas, highlighting the design principles and construction practices used to build these pavements and the substantial benefits they offer in terms of durability and sustainability
Use of Industrial Byproducts in Concrete Paving Applications (Technical Summary–2024)
FHWA-sponsored technical summary that discusses the use of industrial wastes in concrete paving applications, identifies potential applications for using these wastes in highway infrastructure, and presents approaches and considerations for agency approval of these products
What Can Be Done to Reduce the Embodied Carbon Emissions of Concrete? (MAP brief—Spring 2024) (490 KB)
MAP brief that summarizes the key information in the CP Tech Center-published Guide for Reducing the Cradle-to-Gate Embodied Carbon Emissions of Paving Concrete
Toward Performance-Engineered Curing (MAP brief—Winter 2024) (2 MB)
MAP brief that reviews the current state of membrane-forming curing compounds for concrete pavement, provides recommendations for improving curing, and discusses emerging technologies to allow performance-engineered curing
PEM Evolution: Then and Now (MAP brief—Fall 2023) (3 MB)
MAP brief that provides the background of PEM; outlines the accomplishments, key findings, and implementation of TPF-5(368); and provides a look at what is current with PEM regarding construction practices
Optimizing Concrete Pavement Opening to Traffic (Technical Summary–2023) (3 MB)
Technical summary that reviews the science and strategy behind current practices related to the decision to open new pavement surfaces to traffic and how opening to traffic can be accelerated when necessary
Revisiting Concrete Scaling (MAP brief—Summer 2023) (6 MB)
MAP brief that discusses surface distress and provides actions to help reduce the risk of it
Performance History of Concrete Overlays in the United States (Optimized for fast web viewing–2023) (5 MB)
Technical summary for an FHWA-sponsored project that provides a brief history of concrete overlay construction in the United States and summarizes details of 17 concrete overlay projects across the country
Climate Change, Resilience, and Concrete Pavements (MAP brief—Spring 2023) (2 MB)
MAP brief that outlines the impacts of climate change and extreme weather events on the nation’s pavement system, while emphasizing pavement adaptation for improved resilience
Concrete Overlays (MAP brief—Winter 2023) (2 MB)
MAP brief that provides a brief background, technical resources, and key benefits of concrete overlays for use as a long-life preservation treatment for aging roadway facilities
Use of Recycled Concrete Aggregate in Concrete Paving Mixtures (2022)
FHWA-sponsored tech brief on the use of recycled concrete aggregate (RCA) in concrete pavement mixtures including impacts of RCA on concrete properties and durability performance, current procedures for proportioning mixtures, findings of recent research studies, and case studies
Concrete Overlays—The Value Proposition (2021) (10 MB)
Technical summary for an FHWA-sponsored project that summarizes the value proposition that concrete overlays offer to agencies and provides advice for agencies seeking to introduce concrete overlays into their preservation and rehabilitation strategies.
Concrete Overlays—The Value Proposition (Optimized for fast web viewing–2021) (3 MB)
Technical summary for an FHWA-sponsored project that summarizes the value proposition that concrete overlays offer to agencies and provides advice for agencies seeking to introduce concrete overlays into their preservation and rehabilitation strategies.
Concrete Overlays—A Proven Technology (2021) (30 MB)
Technical summary for an FHWA-sponsored project that introduces concrete overlay selection, design, and construction practices to those who may not be familiar with this rehabilitation option
Concrete Overlays—A Proven Technology (Optimized for fast web viewing–2021) (9 MB)
Technical summary for an FHWA-sponsored project that introduces concrete overlay selection, design, and construction practices to those who may not be familiar with this rehabilitation option
Use of Harvested Fly Ash in Highway Infrastructure (2020, updated 2021) (1 MB)
Technical brief for an FHWA-sponsored project that describes the characteristics of harvested coal fly ash and identifies considerations for its use in highway infrastructure
BIM for Infrastructure Tech Briefs (2020)
Three tech briefs for an FHWA-sponsored project that explore aspects and positive impacts of incorporating Building Information Modeling (BIM) into infrastructure projects
Pavement Preservation Peer-to-Peer Exchange Tech Briefs (2020)
10 technical briefs for an FHWA-sponsored project that summarized the results of an EDC-4 “How” Pavement Preservation State Peer-to-Peer Exchange amongst DOT representatives from 37 states
Overview of Fiber-Reinforced Concrete Bridge Decks (2019) (2 MB)
Tech brief for TTCC transportation pooled fund sponsored work that explored reductions in bridge deck cracking by using macrofibers in concrete bridge deck overlays
Fiber-Reinforced Concrete (FRC) for Pavement Overlays (2019) (1 MB)
Tech brief for TTCC transportation pooled fund sponsored work that provides pavement engineers with the information necessary to use FRC for concrete overlays, including how to determine the appropriate fiber reinforcement performance values to specify and implement in the structural design calculations for bonded and unbonded concrete overlay projects
Introductory technical brief that provides an overview of the uses of recycled concrete aggregate (RCA) in a variety of pavement applications, offers guidance on RCA properties, summarizes past uses of RCA under various conditions, and makes recommendations for practitioners on production, concrete pavement mixtures, and structural design using RCA.
A Technical Brief in the Concrete Pavement Recycling Series that describes qualification requirements, design techniques, and construction considerations for the unbound recycled concrete aggregate (RCA) shouldering materials that are being used more frequently by some states for the economic and environmental benefits.
Concrete Pavement Recycling Series: Protecting the Environment during Construction (2018) (4 MB)
Technical brief that provides a summary of the potential environmental impacts of concrete pavement recycling that can occur during construction, including those associated with water quality, air quality, local effects, and waste generation, along with a summary of planning, layout, and construction controls
Technical brief that provides a summary of the potential water quality impacts of concrete pavement recycling, along with a summary of mitigation strategies that can be addressed during project planning and design
Chevrons and Oversized Chevrons (221 KB)
Vertical Delineation (715 KB)
Intersection Lighting (120 KB)
Advance Stop Line Rumble Strips (135 KB)
Adding Turn Lanes/Channelization (261 KB)
Flashing Beacons (175 KB)
Paved Shoulders (180 KB)
On-Pavement Signing (573 KB)
Dynamic Speed Feedback Signs (704 KB)
High-Energy Impact Roller Compaction (731 KB)
Two-Lift Concrete Paving (2010) (595 KB)
BIM for Infrastructure Presentations (2020)
Four presentations for an FHWA-sponsored project that explore the concepts of Building Information Modeling (BIM) for Infrastructure and analyze various example projects
Pavement Preservation Checklist Series (2019)
23-booklet checklist series; nos. 17 through 23 cover concrete pavement preservation strategies
Roadway Cross Section Reconfiguration: Question 14 (297 KB)
Question and answer that addresses some of the initial planning-level considerations when determining whether to include a four-lane undivided to three-lane conversion as an alternative for assessment
Roadway Cross Section Reconfiguration: Question 13 (215 KB)
Question and answer that addresses some of the initial planning-level considerations when determining whether to include a four-lane undivided to three-lane conversion as an alternative for assessment
Roadway Cross Section Reconfiguration: Question 12 (724 KB)
Question and answer that addresses some of the initial planning-level considerations when determining whether to include a four-lane undivided to three-lane conversion as an alternative for assessment
Roadway Cross Section Reconfiguration: Question 11 (2 MB)
Question and answer that addresses some of the initial planning-level considerations when determining whether to include a four-lane undivided to three-lane conversion as an alternative for assessment
Roadway Cross Section Reconfiguration: Question 10 (340 KB)
Question and answer that addresses some of the initial planning-level considerations when determining whether to include a four-lane undivided to three-lane conversion as an alternative for assessment
Roadway Cross Section Reconfiguration: Question 9 (365 KB)
Question and answer that addresses some of the initial planning-level considerations when determining whether to include a four-lane undivided to three-lane conversion as an alternative for assessment
Roadway Cross Section Reconfiguration: Question 8 (218 KB)
Question and answer that addresses some of the initial planning-level considerations when determining whether to include a four-lane undivided to three-lane conversion as an alternative for assessment
Roadway Cross Section Reconfiguration: Question 7 (617 KB)
Question and answer that addresses some of the initial planning-level considerations when determining whether to include a four-lane undivided to three-lane conversion as an alternative for assessment
Roadway Cross Section Reconfiguration: Question 6 (301 KB)
Question and answer that addresses some of the initial planning-level considerations when determining whether to include a four-lane undivided to three-lane conversion as an alternative for assessment
Roadway Cross Section Reconfiguration: Question 5 (380 KB)
Question and answer that addresses some of the initial planning-level considerations when determining whether to include a four-lane undivided to three-lane conversion as an alternative for assessment
Roadway Cross Section Reconfiguration: Question 4 (394 KB)
Question and answer that addresses some of the initial planning-level considerations when determining whether to include a four-lane undivided to three-lane conversion as an alternative for assessment
Roadway Cross Section Reconfiguration: Question 3 (275 KB)
Question and answer that addresses some of the initial planning-level considerations when determining whether to include a four-lane undivided to three-lane conversion as an alternative for assessment
Roadway Cross Section Reconfiguration: Question 2 (62 KB)
Question and answer that addresses some of the initial planning-level considerations when determining whether to include a four-lane undivided to three-lane conversion as an alternative for assessment
Roadway Cross Section Reconfiguration: Question 1 (366 KB)
Question and answer that addresses some of the initial planning-level considerations when determining whether to include a four-lane undivided to three-lane conversion as an alternative for assessment
CP Tech Center Publication Snapshot (2024) (3 MB)
Publication overview for the National Concrete Pavement Technology Center
About InTrans Flyer (183 KB)
CP Tech Center: Making a Difference Flyer (2022) (888 KB)
Brand overview for the National Concrete Pavement Technology Center
Iowa SUDAS Overview Flyer (610 KB)
Iowa LTAP Overview Flyer (3 MB)
Targeted Overlay Pavement Solutions (TOPS): Concrete Overlay One-Page Summaries (2020)
FHWA-sponsored one-page documents summarizing examples of concrete on asphalt–unbonded, concrete on composite–unbonded, concrete on concrete–unbonded, concrete on asphalt–bonded, concrete on composite–bonded, and concrete on concrete–bonded overlay pavement solutions
PEM Test for Transport: Resistivity (2020) (1 MB)
Overview sheet outlining the resistivity test used under the Performance Engineered Mixtures (PEM) program to determine the movement of moisture (transport)
PEM Test for Cold Weather (Freeze-Thaw Durability): Super Air Meter (SAM) Test (2020) (1 MB)
Overview sheet outlining the super air meter (SAM) used under the Performance Engineered Mixtures (PEM) program to determine freeze-thaw durability of concrete
PEM Test for Workability: The Box Test (2020) (2 MB)
Overview sheet outlining the Box Test used under the Performance Engineered Mixtures (PEM) program to determine workability
PEM Test for Workability: The VKelly Test (2020) (2 MB)
Overview sheet outlining the Vibrating Kelly Ball (VKelly) test used under the Performance Engineered Mixtures (PEM) program to determine workability
BIM for Infrastructure Flyers (2020)
Six flyers for an FHWA-sponsored project that summarize key aspects of Building Information Modeling (BIM) for Infrastructure
Summary Report for the 2013–2019 MTC UTC Grant (3 MB)
MTC report highlighting major accomplishments of the six-year University Transportation Center grant, from Sept. 30, 2013–Sept. 30, 2019.
Summary Report for the 2013–2018 Technology Transfer of Concrete Pavement Technologies Project (8 MB)
Final summary report for the activities of a five-year FHWA-sponsored cooperative agreement project (DTFH61-12-H-00010), Technology Transfer of Concrete Pavement Technologies, that transferred the latest concrete pavement innovations, knowledge, and technologies to state highway agencies and industry through a variety of electronic, print, and face-to-face communication methods, with a multi-prong focus on advancing concrete sustainability, preservation and maintenance, longer life pavements, materials innovations, and advances in placement. This final summary report also includes the following final task reports as appendices: Recycled Concrete Pavement Materials, Concrete Pavement Preservation, Concrete Overlay Field Application, Performance Engineered Mixtures, and Long-Life Pavements and New Technologies.
Integration of Connected Vehicle and RWIS Technologies (2 MB)
White paper for an Aurora-sponsored research project that investigated challenges related to the integration of connected vehicles and road weather information systems