Department of Civil, Construction, and Environmental Engineering

Research in Progress

These pages are in progress and do not include every research project in the department.

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Access Management at Major Intersections

Achieving Efficiency in Meeting Safety, Operations, Maintenance, and Air Quality Goals

Administrative Support Group for Concrete Pavement (CP) Road Map

Adsorptive Removal of Arsenic from Drinking Water with Granulated Ferric Hydroxide

Assessing and evaluating water quality models for the development and implementation of TMDL in Iowa

Assessment of Iowa Climatic Data and Its Integration into the AASHTO Mechanistic-Empirical Pavement Design Procedure

Aurora--RWIS Telecommunications Issues and Options

Automated Pavement Condition Data: Analysis, Feasibility and Data Integration

Best Practices and Recommended Strategies for Shared Left Turn Lanes at Signal Control Approaches

Bridge Construction Practices Using Incremental Launching, NCHRP Project 20-07/Task 229

Business and Economic Impacts Assessment: Anoka County, Minnesota

Characterization of Unbound Materials (Soils/Aggregates) for Mechanistic-Empirical Pavement Design Guide

Clear Zone: A Synthesis of Practice and Benefits of Meeting the Ten-Foot Clear Zone Goal on Urban Streets

Construction and Evaluation of a Prestressed Concrete Bridge Constructed Using Ultra High-Performance Concrete

Cooperative Intersection Collision Avoidance System Benefit/Cost Analysis Tool

County Non-FAE Paved Road Condition: Data Collection, Summary, and Delivery, Phase II

CP Road Map Administrative Support, Task 2

Crash Mapping Analysis Tool for Minnesota DOT

Deicer Scaling Resistance of Concrete Pavements, Bridge Decks, and Other Structures Containing Slag Cement

Demonstration and Evaluation of Speed Management on Main Roads in Rural Communities

Demonstration of Integrated Pervious Pavement System for Management of Stormwater Quality and Quantity

Des Moines River Water Quality Network (DRWQM), Red Rock and Saylorville Reservoirs

Design Guide for Improved Quality of Roadway Subgrades and Subbases (TR-525)

Develop an Expanded, Improved, and Upgraded Version of Probabilistic Optimization for Profit Software

Develop Onboard Machine Technology for Real-Time Determination of Soil Water Content

Developing a Rural and Urban Roadway Lighting Practical Design Guide for Iowa (TR 540)

Development and Demonstration of Fleet Management Strategies for Timber Bridges

Development and Implementation of Design Recommendations for the Minimization of Timber Deck Panel Differential Deflection

Development of a 5 Year Research Plan for the Development of a Smart Glued-Laminated Timber Bridge

Development of a Comprehensive Framework for Managing Decisions Regarding Highway Bypasses

Development of a Device for Analysis of Portland Cement Concrete and Composite Pavements: Phase 1 Feasibility Study

Development of Acceptable Live Load Deflection Criteria for Various Timber Superstructure and Deck Types

Development of an Improved integral Abutment-to-Approach Slab Connection

Development of Analytical Tools to Evaluate Road Departure Crashes Using Naturalistic Driving Study Data

Development of Performance Properties of Ternary Mixes, Phase 1

Economic Impacts--Real or Perceived?

Effect of Admixtures on Roller-Compacted Concrete Mixes

Effectiveness of Paved Shoulders in Iowa

Enhancement of Wisconsin DOT NDE Capabilities

Estrogenic compounds in swine manure: fate, transport and bio-degradation during storage and land application

Evaluating Land Use and Transportation Network Structure on Emission-Specific Travel Behavior

Evaluation of 70 mph Speed Limit

Evaluation of a Bridge Constructed Using Accelerated Construction Practices

Evaluation of a Bridge Constructed with Ultra High Performance Concrete

Evaluation of a Precast, Post-Tensioned Bridge Paving Notch

Evaluation of a Prestressed Concrete Bridge Constructed using Ultra High-Performance Concrete

Evaluation of a Single-Span Steel-Girder Bridge Using a Steel-Free Deck System in Tama County

Evaluation of a Steel Girder Bridge Strengthened Using Fiber Reinforced Polymer Plates

Evaluation of a Three-Span, Prestressed Concrete Girder Bridge Constructed with FRP Components

Evaluation of a Timber Bridge for the Secondary Road System Using FRP Reinforced Glulam Girders

Evaluation of Applicability of a New Precombustion Mercury Removal

Evaluation of Elliptical Steel Dowel Performance

Evaluation of Fine Aggregate Characteristics Tests and Their Relationship to HMA Performance

Evaluation of FRP Temporary Bypass Bridge

Evaluation of Hot Mix Asphalt Moisture Sensitivity Using the Nottingham Asphalt Test Equipment, Phase II (TR-555)

Evaluation of Lignin Derived from Agricultural Co-products as an Antioxidant in Asphalt (TR-577)

Evaluation of Rumble Strips on Low-Volume Rural Roads in Iowa

Evaluation of the 24th Street Bridge, Interstate 80/29, Council Bluffs, Iowa

Evaluation of the Effectiveness of Glued Laminated Helper Stringers

Existing Pavement Input Information for the Mechanistic-Empirical Pavement Design Guide

Fate of Pharmaceutical Drugs in Swine Manure Lagoons

Feasibility Investigation of Segmentally Precast Bridge Piers for Accelerated Construction

Feasibility of Cooperative Development of Wetland Mitigation Projects

Field Evaluation of Timber Preservation Treatments for Iowa Highway Applications (IHRB-05-10)

Helikite-based Remote Monitoring Platform

High-Speed Expressway Intersections Study of Crash Risk Factors

Hybrid Electric School Bus Deployment and Evaluation

I-90 Corridor Study

Identification of Practices, Design, Construction, and Repair Using Trenchless Technology (TR-570)

Impact of Increased Freight Traffic on Pavement Maintenance Costs

Impact of Petroleum-Based Hydrocarbons on PE/PVC Pipes And Pipe Gaskets

Implementation Activities Supporting the International Technology Scan on Long-Life Concrete Pavements

Implementation and Evaluation of Smart Timber Bridge Concepts to Provide Continuous Structural Condition Assessment

Implementation and Operation of the Iowa DOT Pavement Management Optimization Model

Implementation of Concrete Pavement Preservation and PCC Surface Characteristics: Tire Pavement Noise Program

Implementation of HERS-ST in Iowa and Development /Refinement of a National Training Program

Implementation of Intelligent Compaction Performance Based Specifications in Minnesota

Improving PCC Mix Consistency and Production by Mixing Improvements (TR-505, Proj. 11)

Improving Safety for Slow Moving Vehicles on Iowa's High Speed Rural Roadways

Improving Snow Plow Design: Highway Maintenance Concept Vehicle, Phase 5

Improving Transportation for Large Scale Events Within the State of Iowa

Improving Variability and Precision of AVA Test Results and Developing Rational Specification Limits

Incident Location Tool Support for Iowa DOT

Instrumentation and Monitoring of Precast, Post-tensioned Bridge Approach Pavement

Investigation into Freezing-Thawing Durability of Low Permeability Concrete with and without Air Entraining Agent

Investigation of Dual Roller-Integrated MDP/CMV Compaction Monitoring Technologies and Measurement Influence Depth

Investigation of Fungal Production on ADM Wastewater

Investigation of the Impact of Rural Develoment on Secondary Road Systems (TR-548)

Iowa Biotechnology Byproducts Consortium

Iowa DOT Pavement Marking Management System: Research and Field Evaluation Assistance

Iowa Event Operations

Iowa Pavement Marking and Sign Management System

Iowa Traffice Safety Data Service (ITSDS)

Iowa Transit ITS Needs Analysis

Iowa Pavement Management Program, Phase X

Jointed Wall System Behavior in the Press Test Building

Laboratory and Field Testing and Evaluation of Precast Bridge Elements

Laboratory Kneading Compactor Evaluation and In-situ Measurements Database Development

Local Agency Pavement Marking Plan

Location Tool Support for TraCS Location Tool States

Low-Cost Strategies to Reduce Speed and Crashes on Curves

Madison County Bridge Evaluation

Management of Rural Expressways for Improved Safety and Operational Performance

Management Support of the AURORA Program

Material and Construction Optimization for Prevention of Premature Pavement Distress in PCC Pavements, Phases I and II

Material Thermal Input for Iowa Materials for the Mechanistic-Empirical Pavement Design Guide

Measurements of Seasonal Changes and Spatial Variation in Pavement Subgrade Support Properties - a Link to Pavement Performance (TR-516)

Measuring and Predicting Improvement in Project Management and Job Closeout Productivity from Implementing an Electronic Project Documentation Database

Median Intersection Design for Rural High-Speed Divided Highway

Minnesota Mapping Analysis Tool (MnMAT) Enhancements

Modern Roundabout Guidance for the Iowa DOT

Modified Sheet Pile Abutments for Low Volume Bridges (TR-568)

Monitoring Wind-Induced Vibrations/Stresses in a High Mast Lighting Tower (TR-518)

National Training for Integrating Materials and Construction Practices in Concrete Pavements: A State-of-the-Practice Manual

Natural Attenuation of Aromatic Hydrocarbons at Former Manufactured Gas Plant Sites

Needs Assessment for Advancing Timber Utilization in Mainline and Shortline Railroad Applications

A New Approach to Utilization of Fly Ash

New Implementation of the Incident Location Tool

Nisin Production with Lactic Acid Bacteria during Soy Processing Industry Wastewater Remediation

Nondestructive Evaluation of Iowa Pavements, Phase 1

Non-destructive Evaluation of Iowa Pavements, Phase 2: Development of a Fully Automated Software System for Rapid Analysis/Processing of the Falling Weight Deflectometer Data

Nondestructive Testing Technology for Quality Control and Acceptance of Flexible Pavement Construction

Older Driver Demonstration Study, City of Des Moines

One- to Two-Way Roadway Conversions

On-site Pilot Demonstration of the Static Granular Bed Reactor

Optimization and Management of Materials in Earthwork Construction (TR-501)

Pavement Management through Data Collection and Analysis

Pavement Marking Demonstration Project

PCC Pavement Surface Characteristics

Performance Effectiveness of Design-Build, Lane Rental, and A + B Contracting Techniques

Performance Evaluation of Concrete Pavement Granular Subbase (TR-554)

Performance Evaluation of Rubblized Pavements in Iowa

Performance Evaluation of Steel Bridges, Phase II (TR-493)

Performance Measures for Snow and Ice Control Operations

A Pilot Study to Investigate the Use of Aggregate Screenings in Roadway Construction

Planning, Developing and Implementation of the Iowa Pavement Markings Management Program

Planning, Developing and Implementing the Iowa Pavement Marking Management System (IPMMS)

Planning, Developing, and Implementation of the Iowa Pavement Marking Management Program III

PONTIS Implementation and Operation, Phase 5

PONTIS, Implementation and Operation: Iowa DOT and Counties, Phase III: Implementation and Operation

Predicting Critical VMA in Hot Mix Asphalt, Phase II

Prevention of Fungal Growths on Stored Corn

Production of Biomass Protein and High Value Chemicals from Corn Processing Wastewater Using Micro-Fungi

Rapid, Self-contained In-situ Permeameter for Field QC/QA of Pavement Base/Subbase Materials

Evaluation of Leachate Treatment and Recycle Options Using the Static Granular Bed Reactor

Reducing Costs of Byproduct Recovery at Dry-Mill Ethanol Plants

Remote Monitoring of Historic Covered Timber Bridges in Madison County for the Prevention of Arson and Vandalism

Retooling Ethanol Industries: Integrating Ultrasonics into Dry Corn Milling to Enhance Ethanol Yield

Retooling Ethanol industry: anaerobic digestion of thin stillage to produce methane and Class-A biosolids

Revision to the SUDAS Traffic Signal Design Guide (TR-546)

Rewriting Supervisory Training Program Unit 8: Managing the Project-The Supervisor's Role

Roadway Departure: Marketing, Outreach, and Education

Rural Expressway Intersection Crash analysis Update

Safety and Operational Effectiveness of One-lane Roundabouts at High Speed Highways

Self-Consolidating Concrete--Applications for Slip Form Paving, Phase 2

A Sequential Fermentation Biorefinery to Produce Ethanol from Corn Processing Co-products

SGER: Soil-Structure Interaction of Bridge Columns in Frozen Environments

Ships’ Ballast Water Treatment with Ozone

Short-Term Monitoring of the Saylorville Reservoir Bridge for Wind-Induced Vibrations with Remote, Cellular-Based Notification

Sign Management System for Iowa DOT

Simple and Rapid Test for Monitoring the Heat Evolution of Concrete Mixtures for Laboratory and Field Applications, Phase 3

Slope Stability Evaluation and Remediation Techniques for Iowa

Smart Work Zone Deployment Initiative

Snow and Ice Operations Cost Analysis

Synthesis of Energy Efficiency in Street Lighting

Synthesis of Sulfur-Based Water Treatment Agent from Sulfur Dioxide Waste Steams

Synthesis of Traffic Calming Techniques in Work Zones

Synthesis Study: Effectiveness of Safety Corridor Programs

Collaborative Research: Testing and Analyses of Nonrectangular Walls Under Multi-Directional Loads

Testing and Long-Term Monitoring of 9th Street Bridge Over I-235 in Des Moines: Integral Abutments Supported on Steel Pile/Concrete Drilled Shaft in Glacial Clay

Testing Iowa Asphalt Mixtures for the AASHTO Mechanistic-Empirical Pavement Design Procedure

Testing Iowa Portland Cement Concrete Mixtures for the Mechanistic-Empirical Pavement Design Guide

Traffic Data Collection and Reduction Using Video Detection Equipment

Treatment of Domestic Wastewater Using Anaerobic Membrane Bioreactor

Ultrasound Pre-treatment of Waste Activated Sludge to Control Foaming and to Enhance Digestibility

Update of "Roundabouts: An Informational Guide"

Updated Rule on Safety and Mobility

Use of Functional Silos to Optimize Agency Decision Making

Use of Ultra-High Performance Concrete in Geotechnical and Sub-structure Applications (TR-558)

Utility Cut Repair Techniques to Reduce Settlement in Repaired Areas, Phase 2 (TR-566)

Validation of Pavement Performance Models for the Mechanistic-Empirical Pavement Design Guide

Feasibility of Visualization and Simulation Applications to Improve Work Zone Safety and Mobility

Warrants for Roundabouts

Weatherview: XML Data Structure & Maintenance

Western Growth Area Land Use Sensitivity Analysis, Phase 2

Winter Weather Crash Trends on Iowa Primary Roads