2005-371 - Laserfiche WebLink

Home Browse Search

Indian River County, Amendment No . 2 58th Avenue and State Road 60 Intersection Improvements signal improvements at three intersections . The intersections that the COUNTY desires to design mast-arm signalization improvements are as follows : • College Lane / 58th Avenue • State Road 60/ 58th Avenue • 26th Street/ 58th Avenue The signal design will include improvements to the controller and controller peripherals, phasing and initial timings, cabinet location, electrical service, detector amplifiers, loops and lead-ins, conduit, cabling, pulling boxes , vehicular signal displays, and pedestrian displays and detector stations , if appropriate . The plans will also show the overhead signing, ground signing, and pavement marking modifications associated with the signal alteration. The plans will be furnished in reproducible form on half size sheets drawn to a scale of 1 " = 40 ' , and will include topography, known utilities (above and below ground) , rights-of-way, design of proposed improvements, general notes , pole schedule, and any special detail sheets required. Construction Plans will be prepared in CADD format utilizing 11 " x 17 " plan sheets . The ENGINEER will prepare and submit the Signalization Plans package to meet County requirements . As part of the Plans package, the ENGINEER will design the structural details and perform pole and foundation structural calculations for the mast arm configurations to be included on the project. The ENGINEER will submit the structural designs in FDOT format as part of the Signal Plan submittals . I. Geotechnical Investigation To aid in the roadway, stormwater management facilities and signalization foundation designs an outline for the proposed geotechnical services provided by our sub -consultant DE&T, Inc . in connection with the project ' s design is shown below . 1 . Conduct visual reconnaissance along the proposed roadway corridors . Include photographic record of typical , key, or anomalous site features noted during the reconnaissance . Review aerial photographs, information form the Soil Survey of Indian River County, Florida, and any geotechnical data furnished by the COUNTY. The Geotechnical Subconsultant may rely upon information furnished by the COUNTY without independent review and verification. 2 . Perform (6) , 30-foot deep Standard Penetration Test (SPT) borings to determine soil parameters (i . e . , unit weight, friction angle and cohesion) , an estimated wet season water table level and recommendations for drilled shaft construction for use in design of drilled shaft foundations . Page 4 of 7