Calibration and Validation of SWAT for the Upper Maquoketa River Watershed, June 2005

A validation study has been performed using the Soil and Water Assessment Tool (SWAT) model with data collected for the Upper Maquoketa River Watershed (UMRW), which drains over 16,000 ha in northeast Iowa. This validation assessment builds on a previous study with nested modeling for the UMRW that required both the Agricultural Policy EXtender (APEX) model and SWAT. In the nested modeling approach, edge-offield flows and pollutant load estimates were generated for manure application fields with APEX and were then subsequently routed to the watershed outlet in SWAT, along with flows and pollutant loadings estimated for the rest of the watershed routed to the watershed outlet. In the current study, the entire UMRW cropland area was simulated in SWAT, which required translating the APEX subareas into SWAT hydrologic response units (HRUs). Calibration and validation of the SWAT output was performed by comparing predicted flow and NO3-N loadings with corresponding in-stream measurements at the watershed outlet from 1999 to 2001. Annual stream flows measured at the watershed outlet were greatly under-predicted when precipitation data collected within the watershed during the 1999-2001 period were used to drive SWAT. Selection of alternative climate data resulted in greatly improved average annual stream predictions, and also relatively strong r2 values of 0.73 and 0.72 for the predicted average monthly flows and NO3-N loads, respectively. The impact of alternative precipitation data shows that as average annual precipitation increases 19%, the relative change in average annual streamflow is about 55%. In summary, the results of this study show that SWAT can replicate measured trends for this watershed and that climate inputs are very important for validating SWAT and other water quality models.

Development of a GPS-Based Sign Inventory Tool for Iowa’s Statewide Management System, May 2011

This report is on state-of-the-art research efforts specific to infrastructure inventory/data collection with sign inventory as a case study. The development of an agency-wide sign inventory is based on feature inventory and location information. Specific to location, a quick and simple location acquisition tool is critical to tying assets to an accurate location-referencing system. This research effort provides a contrast between legacy referencing systems (route and milepost) and global positioning system- (GPS-) based techniques (latitude and longitude) integrated into a geographic information system (GIS) database. A summary comparison of field accuracies using a variety of consumer grade devices is also provided. This research, and the data collection tools developed, are critical in supporting the Iowa Department of Transportation (DOT) Statewide Sign Management System development effort. For the last two years, a Task Force has embarked on a comprehensive effort to develop a sign management system to improve sign quality, as well as to manage all aspects of signage, from request, ordering, fabricating, installing, maintaining, and ultimately removing, and to provide the ability to budget for these key assets on a statewide basis. This effort supported the development of a sign inventory tool and is the beginning of the development of a sign management system to support the Iowa DOT efforts in the consistent, cost effective, and objective decision making process when it comes to signs and their maintenance.

Review of State Comprehensive Computerized Highway Information System, HR-1053, 1987

This report presents an overview of where the computerized highway information system is now, and its status as a planning and programming tool for state highway agencies. A computerized highway information system is simply a computer linked system which can be used by many divisions of a transportation agency to obtain information to meet data reporting, analyses or other informational needs. The description of the highway information system includes: current use and status, applications, organization and system development, benefits and problems.

Wind Monitoring of the Saylorville and Red Rock Reservoir Bridges with Remote, Cellular-Based Notifications, May 2012

Following a high wind event on January 24, 2006, at least five people claimed to have seen or felt the superstructure of the Saylorville Reservoir Bridge in central Iowa moving both vertically and laterally. Since that time, the Iowa Department of Transportation (DOT) contracted with the Bridge Engineering Center at Iowa State University to design and install a monitoring system capable of providing notification of the occurrence of subsequent high wind events. In subsequent years, a similar system was installed on the Red Rock Reservoir Bridge to provide the same wind monitoring capabilities and notifications to the Iowa DOT. The objectives of the system development and implementation are to notify personnel when the wind speed reaches a predetermined threshold such that the bridge can be closed for the safety of the public, correlate structural response with wind-induced response, and gather historical wind data at these structures for future assessments. This report describes the two monitoring systems, their components, upgrades, functionality, and limitations, and results from one year of wind data collection at both bridges.

Iowa EHDI News, Fall 2009

The purpose of the newsletter is to communicate with parents and professionals about newborn hearing screening and follow up in Iowa. We will share information about: Hearing screenings Early intervention, including communication opportunities Resources available for parents and professionals “Best practices” by hospitals, Area Education Agencies (AEAs), private practice audiology offi ces or other health and education providers working with children who are deaf or hard of hearing National research Iowa EHDI program goals EHDI program progress, system development, evaluation Family stories Highlights from the EHDI Advisory Committee

Iowa EHDI News, Fall 2010

The purpose of the newsletter is to communicate with parents and professionals about newborn hearing screening and follow up in Iowa. We will share information about: Hearing screenings Early intervention, including communication opportunities Resources available for parents and professionals “Best practices” by hospitals, Area Education Agencies (AEAs), private practice audiology offi ces or other health and education providers working with children who are deaf or hard of hearing National research Iowa EHDI program goals EHDI program progress, system development, evaluation Family stories Highlights from the EHDI Advisory Committee

Iowa EHDI News, Fall 2011

The purpose of the newsletter is to communicate with parents and professionals about newborn hearing screening and follow up in Iowa. We will share information about: Hearing screenings Early intervention, including communication opportunities Resources available for parents and professionals “Best practices” by hospitals, Area Education Agencies (AEAs), private practice audiology offi ces or other health and education providers working with children who are deaf or hard of hearing National research Iowa EHDI program goals EHDI program progress, system development, evaluation Family stories Highlights from the EHDI Advisory Committee

Iowa EHDI News, Spring 2010

The purpose of the newsletter is to communicate with parents and professionals about newborn hearing screening and follow up in Iowa. We will share information about: Hearing screenings Early intervention, including communication opportunities Resources available for parents and professionals “Best practices” by hospitals, Area Education Agencies (AEAs), private practice audiology offi ces or other health and education providers working with children who are deaf or hard of hearing National research Iowa EHDI program goals EHDI program progress, system development, evaluation Family stories Highlights from the EHDI Advisory Committee

Iowa EHDI News, Spring 2011

The purpose of the newsletter is to communicate with parents and professionals about newborn hearing screening and follow up in Iowa. We will share information about: Hearing screenings Early intervention, including communication opportunities Resources available for parents and professionals “Best practices” by hospitals, Area Education Agencies (AEAs), private practice audiology offi ces or other health and education providers working with children who are deaf or hard of hearing National research Iowa EHDI program goals EHDI program progress, system development, evaluation Family stories Highlights from the EHDI Advisory Committee

Iowa EHDI News, Summer 2009

The purpose of the newsletter is to communicate with parents and professionals about newborn hearing screening and follow up in Iowa. We will share information about: Hearing screenings Early intervention, including communication opportunities Resources available for parents and professionals “Best practices” by hospitals, Area Education Agencies (AEAs), private practice audiology offi ces or other health and education providers working with children who are deaf or hard of hearing National research Iowa EHDI program goals EHDI program progress, system development, evaluation Family stories Highlights from the EHDI Advisory Committee

Iowa EHDI News, Summer 2010

The purpose of the newsletter is to communicate with parents and professionals about newborn hearing screening and follow up in Iowa. We will share information about: Hearing screenings Early intervention, including communication opportunities Resources available for parents and professionals “Best practices” by hospitals, Area Education Agencies (AEAs), private practice audiology offi ces or other health and education providers working with children who are deaf or hard of hearing National research Iowa EHDI program goals EHDI program progress, system development, evaluation Family stories Highlights from the EHDI Advisory Committee

Iowa EHDI News, Summer 2011

The purpose of the newsletter is to communicate with parents and professionals about newborn hearing screening and follow up in Iowa. We will share information about: Hearing screenings Early intervention, including communication opportunities Resources available for parents and professionals “Best practices” by hospitals, Area Education Agencies (AEAs), private practice audiology offi ces or other health and education providers working with children who are deaf or hard of hearing National research Iowa EHDI program goals EHDI program progress, system development, evaluation Family stories Highlights from the EHDI Advisory Committee

Iowa EHDI News, Winter 2009

The purpose of the newsletter is to communicate with parents and professionals about newborn hearing screening and follow up in Iowa. We will share information about: Hearing screenings Early intervention, including communication opportunities Resources available for parents and professionals “Best practices” by hospitals, Area Education Agencies (AEAs), private practice audiology offi ces or other health and education providers working with children who are deaf or hard of hearing National research Iowa EHDI program goals EHDI program progress, system development, evaluation Family stories Highlights from the EHDI Advisory Committee

Iowa EHDI News, Winter 2010

The purpose of the newsletter is to communicate with parents and professionals about newborn hearing screening and follow up in Iowa. We will share information about: Hearing screenings Early intervention, including communication opportunities Resources available for parents and professionals “Best practices” by hospitals, Area Education Agencies (AEAs), private practice audiology offi ces or other health and education providers working with children who are deaf or hard of hearing National research Iowa EHDI program goals EHDI program progress, system development, evaluation Family stories Highlights from the EHDI Advisory Committee