Bellemont is a rural, unincorporated community with a population of approximately 1,000 residents in Coconino County that has become a suburb of Flagstaff, where residents commute to work. Three roads ó Interstate 40 (I-40), Brannigan Park Road and Shadow Mountain Drive ó are used to access virtually all the private land north of I-40 at Bellemont. Frequent congestion from heavy truck volumes and subdivision traffic causes traffic delays and creates concern for safety and timely emergency response. The 2008 closure of the ADOT Parks Rest Area on I-40, just west of Bellemont, has also increased vehicular traffic accessing the truck stop and restaurants. Future build-out of the subdivision and potential commercial/industrial uses in the area are expected to continue to negatively affect the Brannigan Park Road and Shadow Mountain Drive intersection and the I-40 traffic interchange. ADOT recently prepared the I-40 Bellemont to Winona Initial Design Concept Report, which recommended long-term improvements for the intersection and traffic interchange.

Ultimately, this access management and multimodal transportation study will provide a comprehensive review of the Bellemont area transportation system and provide guidance for determining priority needs for future improvements north of I-40, including alleviating congestion and improving/managing access, and improving and evaluating multimodal access to businesses from residential areas.

This project required the completion of Construction Data Forms for the Strategic Highway Research Program's (SHRP's) Specific Pavement Studies (SPS) Experiment Number 5, The Rehabilitation of Asphalt Concrete Pavements, and Experiment Number 6, The Rehabilitation of Jointed Portland Cement Concrete Pavements. In Arizona, the SPS-5 experiment construction was done in the eastbound travel lane of Interstate Highway 8, between mileposts 159 and 161 in southwestern Arizona. Eleven test sections were constructed for the experiment, with eight as set forth in SHRP guidelines. In addition, two additional sections were constructed, and one designated as the control section, for a grand total of eleven sections.

There are many factors that affect the durability of Portland cement concrete (PCC), including the mix design and the materials used, the quality of construction, and the environment. Durability is not an intrinsic property of the concrete, but instead is related to how the material interacts with the environment. Durability-related deterioration is referred to as materials-related distress (MRD). Common MRDs include those caused by physical processes, such as freezing and thawing, or chemical processes, such as alkali-silica reactivity (ASR) and sulfate attack. This research project was undertaken to determine whether concrete used in the ADOT system is experiencing, or is potentially susceptible to, ASR or sulfate attack, and if so, to what degree.

The purpose of the Program is to set forth the plan for developing projects and account for the spending funds for the next five years. All projects in the first two years of the program will be fully funded and ready to advertise within the year programmed or sooner as determined by the State Transportation Board. The last three years of the program will be illustrative in nature and be used to establish an implementation plan for projects moving through the various preparation phases needed prior to the construction of the project.