Reso 2016-2540 - Laserfiche WebLink

Home Browse Search

Work Authorization No.175 March 1,2016 Calvin,Giordano&Associates,Inc.,Proposal No.15-7567 R. Inspect and monitor all bridge related items including end bent/interior bent construction, concrete beam erection, bridge deck construction,traffic railing construction,MSE wall construction, drill shaft installation and reinforcement inspection. S. Review and acceptance of the Contractor's Drilled Shaft Installation Plan (DSIP) and ensure that the following minimum information is included: 1. Name and experience record of drilled shaft superintendent or foreman in responsible charge of drilled shaft operations.Ensure the drilled shaft superintendent or foreman in responsible charge of the drilled shaft operations has a minimum of one year of experience of installing drilled shafts of the size and depth shown in the plans, and a minimum of three years' experience in the construction of drilled shafts using the following methods: • Mineral slurry. • Castings up to the length shown in the plans. • Shaft drilling operations on the water under conditions as shown in the plans. 2. Methods and equipment proposed to prevent displacement of casing and/or shafts during placement and compaction of fill. 3. List and size of proposed equipment, including cranes,drills,augers, bailing buckets, final cleaning equipment, de-sanding equipment, slurry pumps, core sampling equipment,tremies or concrete pumps, casings, etc. 4. Details of sequence of construction operations and sequence of shaft construction in bents or shaft groups. 5. Details of shaft excavation methods. 6. Details of slurry,including proposed methods to mix, circulate, de- sand, test methods, and proposed testing laboratory to document test results. 7. Details of proposed methods to clean shaft after initial excavation. S1B