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FDR specs. Evers IG and Bechtol have worked with numerous specifications and have been involved with the development of them. FDR mix designs are another area many agencies are unfamiliar with. Industry advancements have brought new approaches to the forefront. Hybrid designs utilize multiple additives rather than just one thereby increasing early strength and lowering overall additive costs. Bechtol Materials and Testing brings this expertise to our team and has extensive project experience with hybrid designs both in the laboratory during the design phase, and in the field with inspection and testing. Lastly quality control plays a large role in getting the kind of finished product the County envisions. Does the successful low bidder have the equipment required to perform the work as specified? Does the mix design provide the correct structural coefficient as required by the County? How do the soils vary over the project limits? Are the appropriate amount of working days allocated and has the contractor been made aware of the liquidated damages at the pre-construction meeting? Who will provide inspectors with adequate knowledge and training to anticipate construction problems and enforce the specifications? These are some of the questions we will respond to over the course of design to help guide the county to a successfully completed FDR project. 69th Street Left turn lane improvements: The Scope calls for the addition of left-turn lanes on all approaches at the 69th St. intersection with 58th Ave. We anticipate widening six feet on both sides of the roadway on all approaches to minimize taper lengths, alignment shifts and impacts to utilities and other roadside features. We will design the intersection to provide proper turning radii for the left turning movements and accommodate the new signal. Tapers will be designed in accordance with FDOT index 301, Turn Lanes and index 526, Roadway Transitions. There is a deep ditch along the south side of 69th St. that is approximately 20 feet from the edge of pavement allowing the additional 6 feet of pavement to be added. This will be carefully evaluated as the ditch maybe within the clear zone width of 18 feet, after the widening,and required shielding or pipe extensions to eliminate this unsafe condition.Also there is a large water main crossing the ditch at the intersection adjacent to the straight endwall that will require adjustment to allow the new return radius to be constructed. Alternatively, we will evaluate shifting the widening to the north on 69th to avoid this. However, we recommend removal of the endwall and replacement with a mitered end section for safety reasons. This would also require adjustment of the water main.We also recommend this for the U-endwall on the southeast side of the intersection as well since it would be impacted by the return radii also unless the roadway is shifted north. Since 69th street is straight for a long distance on each approach the roadway shift at the intersection could be troublesome to drivers. The installation of the new traffic signal may also impact the ditch depending on the location of the new poles.Unless there is significant benefit to shifting the roadway north to avoid these impacts we recommend the equal width widening on both sides. Along 58th Ave there is a shallower swale along the east side approximately 22 feet from the edge of travel and another shallow swale on the west side just off the 8-foot shoulder. Adjustment to these will be required to maintain drainage at the intersection. However, there is adequate room available to widen equally on both sides along 58th Ave. 34