2015 Standard Specifications 2015 Standard Specifications for Road and Bridge Construction Spec Book Order Form 2015 Supplemental Specifications 100 SS (Rev. 12-30-19) 200 SS (Rev. 12-30-19) 300 SS (Rev. 12-30-19) 400 SS (Rev. 12-30-19) 500 SS (Rev. 12-30-19) 600 SS (Rev. 12-30-19) 700 SS (Rev. 12-30-19) 900 SS (Rev. 12-30-19)