2010 Construction and Material Specifications - Ohio Department of ...

208.18
F. Evaluate the need for piezometers to monitor the ground water conditions.
Place and monitor the piezometers as necessary.
G. Provide a monitoring plan report detailing the proposed activities,
frequencies, testing, and any recommendations for monitoring the water supplies
as detailed in 208.17.A through 208.17.F above. Submit this report at least 10
days before beginning the scheduled blasting or major excavation.
H. Provide a monthly report of the conclusions and results of the monitoring
plan.
I. Provide a final report on the final condition or affect of the blasting or major
excavation on the water supplies. Submit this report within 30 days after the
blasting or major excavation is completed on the project.
J. Meet with the Engineer in order to coordinate this work and provide input,
update the project schedule, report progress (including completed work and
updated schedule), and make recommendations. Allow for ten meetings.
The Contractor is not responsible for damages to the above denoted water
supplies if the blasting or excavation is done according to this specification. The
Contractor is responsible for damage caused by negligence, vibration or noise
above the allowable limits, flyrock, or back break.
208.18 Flyrock Control. Before firing any blast in areas where flying rock
may result in personal injury or unacceptable damage to property or the work,
cover the rock with blasting mats, soil, or other equally serviceable material to
prevent flyrock.
If flyrock leaves the construction site or lands on a traveled road, the Contractor
shall cease all blasting operations until the blasting consultant specified in 208.13
reviews the site and determines the cause and solution to the flyrock problem.
Before blasting proceeds, submit a written report addressing the following:
A. Why the flyrock left the construction site or landed on a traveled road.
B. What corrective measures were taken to prevent this from reoccurring?
208.19 Public Meetings. If a blasting consultant, vibration specialist, airblast
and noise control specialist, or hydrologist are specified in the Contract, make the
consultant, specialists, Contractor’s superintendent and blaster available for one
day to prepare for and participate in a public meeting organized by the Engineer
and conducted by the Contractor to better inform the public about anticipated
drilling and blasting operations. The consultant and specialists shall be prepared to
answer any questions dealing with the magnitude of seismic motion, vibrations,
airblast overpressure, flyrock, and water problems that may affect the public.
208.20 Record Keeping.
A. Daily Explosive Material Consumption. Keep a daily record of the
transactions at each storage magazine. Update inventory records at the close of
every business day. Show on the records the class and quantities received and
issued and total remaining on hand at the end of each day. Check the remaining
explosive inventory each day and report any discrepancies that would indicate a
theft or loss of explosive material.
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