Common use of Blasting Clause in Contracts

Blasting. 1. The Contractor shall obtain advance approval of the Railroad Engineer and the Sponsor Engineer for use of explosives on or adjacent to Railroad property. The request for permission to use explosives shall include a detailed blasting plan. If permission for use of explosives is granted, the Contractor will be required to comply with the following: a. Blasting shall be done with light charges under the direct supervision of a responsible officer or employee of the Contractor and a licensed blaster. b. Electric detonating fuses shall not be used because of the possibility of premature explosions resulting from operation of two-way radios. c. No blasting shall be done without the presence of the Railroad Engineer or his authorized representative. At least 72 hours advance notice to the person designated in the Railroad’s notice of authorization to proceed (see paragraph 2.B) will be required to arrange for the presence of an authorized Railroad representative and such flagging as the Railroad may require. d. Have at the job site adequate equipment, labor and materials and allow sufficient time to clean up debris resulting from the blasting without delay to trains, as well as correcting at his expense any track misalignment or other damage to Railroad property resulting from the blasting as directed by the Railway’s authorized representative. If his actions result in delay of trains, the Contractor shall bear the entire cost thereof. e. The blasting Contractor shall have a copy of the approved blasting plan on hand while on the site. f. Explosive materials or loaded holes shall not be left unattended at the blast site. g. A seismograph shall be placed on the track shoulder adjacent to each blast which will govern the peak particle velocity of two inches per second. Measurement shall also be taken on the ground adjacent to structures as designated by a qualified and independent blasting consultant. The Railroad reserves the option to direct the placement of additional seismographs at structures or other locations of concern, without regard to scaled distance. h. After each blast, the blasting Contractor shall provide a copy of their drill log and blast report, which includes number of holes, depth of holes, number of decks, type and pounds of explosives used per deck. i. The Railroad may require top of rail elevations and track centers taken before, during and after the blasting and excavation operation to check for any track misalignment resulting from the Contractor’s activities. 2. The Railroad representative will: a. Determine approximate location of trains and advise the Contractor the appropriate amount of time available for the blasting operation and clean up. b. Have the authority to order discontinuance of blasting if, in his opinion, blasting is too hazardous or is not in accord with these special provisions. 3. The Contractor must hire, at no expense to the Railroad, a qualified and independent blasting consultant to oversee the use of explosives. The blasting consultant will: a. Review the Contractor’s proposed drilling and loading patterns, and with the blasting consultant’s personnel and instruments, monitor the blasting operations. b. Confirm that the minimum amounts of explosives are used to remove the rock. c. Be empowered to intercede if he concludes that the Contractor’s blasting operations are endangering the Railway. d. Submit a letter acknowledging that he has been engaged to oversee the entire blasting operation and that he approves of the blasting plan. e. Furnish copies of all vibration readings to the Railroad representative immediately after each blast. The representative will sign and date the seismograph tapes after each shot to verify the readings are for that specific shot. f. Advise the Railroad representative as to the safety of the operation and notify him of any modifications to the blasting operation as the work progresses. 4. The request for permission to use explosives on the Railroad’s Right-of-Way shall include a blasting proposal providing the following details: a. A drawing which shows the proposed blasting area, location of nearest hole and distance to Railway structures, all with reference to the centerline of track. b. Hole diameter. c. Hole spacing and pattern. d. Maximum depth of hole. e. Maximum number of decks per hole. f. Maximum pounds of explosives per hole. g. Maximum pounds of explosives per delay. h. Maximum number of holes per detonation. i. Type of detonator and explosives to be used. (Electronic detonating devices will not be permitted). Diameter of explosives if different from hole diameter. j. Approximate dates and time of day when the explosives are to be detonated. k. Type of flyrock protection. l. Type and patterns of audible warning and all clear signals to be used before and after each blast. m. A copy of the blasting license and qualifications of the person directly in charge of the blasting operation, including their name, address and telephone number. n. A copy of the Authority’s permit granting permission to blast on the site. o. A letter from the blasting consultant acknowledging that he has been engaged to oversee the entire blasting operation and that he approves of the blasting plan. p. In addition to the insurance requirements outlined in Paragraph 14 of these Provisions, A certificate of insurance from the Contractor’s insurer stating the amount of coverage for XCU (Explosive Collapse and Underground Hazard) insurance and that XCU Insurance is in force for this project. q. A copy of the borings and Geotechnical information or report.

Blasting. 1Not less than 40 days prior to commencement of rock excavation in each area, the Contractor shall submit, for review by the Employer’s Representative, details of the drilling and blasting methods which he intends to use in that area. If, at any time in a specific area, a plan which has been previously adopted does not produce conditions at the excavated rock face that conform to the requirements of these Specifications, the Contractor shall submit a revised plan to the Employer’s Representative before continuing excavation in adjacent areas. The Contractor shall obtain advance approval develop controlled blasting techniques, which will satisfy the excavation requirements specified herein. In each different type of rock conditions, the Railroad Engineer Contractor's initial blasts shall be performed as trials, and the Sponsor Engineer for use burden, drill hole pattern and depth, explosive type and quantity, blasting sequence and drill delay pattern shall be modified to achieve the requirements specified herein. Blasting means have to follow the licensing requirements and orders as well as the manufacturer’s instructions. Blasting operations shall be carried out only under the direction of explosives on or adjacent to Railroad propertyan experienced operator. The request Contractor shall appoint one competent person to be responsible for permission to use explosives shall include a detailed blasting planthe security of explosives. If permission for use of explosives is granted, the Contractor will be required to comply with the following: a. Blasting shall be done with light charges under carried out carefully so as to avoid loosening or shattering rock beyond the direct supervision required line of a responsible officer excavation, and loose or employee shattered rock (where it does not contribute to stability of the Contractor and a licensed blaster. b. Electric detonating fuses shall not be used because of the possibility of premature explosions resulting from operation of two-way radios. c. No blasting excavation) shall be done without the presence of the Railroad Engineer removed by scaling down or his authorized representative. At least 72 hours advance notice to the person designated in the Railroad’s notice of authorization to proceed (see paragraph 2.B) other means before personnel will be required permitted to arrange for the presence restart operations after blasting. Notices of an authorized Railroad representative and such flagging as the Railroad may require. d. Have at the job site adequate equipment, labor and materials and allow sufficient time to clean up debris resulting from the blasting without delay to trains, as well as correcting at his expense any track misalignment or other damage to Railroad property resulting from the blasting as directed by the Railway’s authorized representativeoperations shall be posted on site. If his actions result in delay of trainsBefore each firing, the Contractor shall bear give audible warning, clear the entire cost thereof. e. area and shall take positive measures to prevent personnel from entering the danger area. The blasting Contractor shall have a copy monitor the results of blasting closely and, where it is proper to do so, shall propose changes to his blasting operation for the agreement of the approved blasting plan on hand while on the site. f. Explosive materials or loaded Employer’s Representative. Under no circumstances shall any holes shall not be left unattended charged until completion of all drilling operations at the blast site. g. A seismograph face. After each blasting operation the tunnel drive shall be placed on sufficiently ventilated to remove any nitrous gases and the track shoulder adjacent atmospheric conditions shall be constantly checked prior to each blast which will govern personnel accessing the peak particle velocity excavated face. No person shall be allowed to approach the face and no face operation shall commence until the Contractor’s authorized person in charge of two inches per secondthe operation has given permission after blasting round. Measurement As soon as practicable after blasting and without undue delay the Contractor shall also erect such support as may be taken on necessary to safeguard the ground adjacent to structures as designated by a qualified excavation and independent blasting consultantpersonnel. The Railroad reserves shot-firer must keep a record of the option to direct the placement of additional seismographs at structures or other locations of concern, without regard to scaled distance. h. After each blast, the blasting Contractor shall provide a copy of their drill log and blast report, which includes number of holesshots fired, depth their time of holes, number of decksfiring, type and pounds weights of explosives used per deck. i. The Railroad may require top of rail elevations and track centers taken before, during and after the blasting and excavation operation to check for any track misalignment resulting from the Contractor’s activities. 2. The Railroad representative will: a. Determine approximate location of trains and advise the Contractor the appropriate amount of time available for the blasting operation and clean up. b. Have the authority to order discontinuance of blasting if, in his opinion, blasting is too hazardous or is not in accord with these special provisions. 3. The Contractor must hire, at no expense to the Railroad, a qualified and independent blasting consultant to oversee the use of explosives. The blasting consultant will: a. Review the Contractor’s proposed drilling and loading patternsused, and the type and number of detonators used, together with the blasting consultant’s personnel and instruments, monitor the blasting operations. b. Confirm that the minimum amounts of explosives are used to remove the rock. c. Be empowered to intercede if he concludes that the Contractor’s blasting operations are endangering the Railway. d. Submit a letter acknowledging that he has been engaged to oversee the entire blasting operation and that he approves record of the blasting plan. e. Furnish copies of all vibration readings to the Railroad representative immediately after post-blast situation for each blastand every location. The representative will sign and date the seismograph tapes after each shot to verify the readings are for that specific shot. f. Advise the Railroad representative as to the safety of the operation and notify him of any modifications to the blasting operation as the work progresses. 4. The request for permission to use explosives on the Railroad’s Right-of-Way shall include a blasting proposal providing the following details: a. A drawing which shows the proposed blasting area, location of nearest hole and distance to Railway structures, all with reference to the centerline of track. b. Hole diameter. c. Hole spacing and pattern. d. Maximum depth of hole. e. Maximum number of decks per hole. f. Maximum pounds of explosives per hole. g. Maximum pounds of explosives per delay. h. Maximum number of holes per detonation. i. Type of detonator and explosives to be used. (Electronic detonating devices will not be permitted). Diameter of explosives if different from hole diameter. j. Approximate dates and time of day when the explosives are to be detonated. k. Type of flyrock protection. l. Type and patterns of audible warning and all clear signals to be used before and after each blast. m. A copy of the blasting license and qualifications of the person directly in charge of the blasting operation, including their name, address and telephone number. n. A copy of the Authority’s permit granting permission to blast on the site. o. A letter from the blasting consultant acknowledging that he has been engaged to oversee the entire blasting operation and that he approves of the blasting plan. p. In addition record shall be available to the insurance requirements outlined in Paragraph 14 Employer’s Representative at the end of these Provisions, A certificate of insurance from the Contractor’s insurer stating the amount of coverage for XCU (Explosive Collapse and Underground Hazard) insurance and that XCU Insurance is in force for this projectevery shift on which shots are fired. q. A copy of the borings and Geotechnical information or report.

Blasting. 1. The Contractor shall obtain advance approval of the Railroad Engineer and the Sponsor Engineer for use of explosives on or adjacent to Railroad property. The request for permission to use explosives shall include a detailed blasting plan. If permission for use of explosives is granted, the Contractor will be required to comply with the following: a. Blasting shall be done with light charges under the direct supervision of a responsible officer or employee of the Contractor and a licensed blaster. b. Electric detonating fuses shall not be used because of the possibility of premature explosions resulting from operation of two-way two‐way radios. c. No blasting shall be done without the presence of the Railroad Engineer or his authorized representative. At least 72 hours advance notice to the person designated in the Railroad’s notice of authorization to proceed (see paragraph 2.B) will be required to arrange for the presence of an authorized Railroad representative and such flagging as the Railroad may require. d. Have at the job site adequate equipment, labor and materials and allow sufficient time to clean up debris resulting from the blasting without delay to trains, as well as correcting at his expense any track misalignment or other damage to Railroad property resulting from the blasting as directed by the Railway’s authorized representative. If his actions result in delay of trains, the Contractor shall bear the entire cost thereof. e. The blasting Contractor shall have a copy of the approved blasting plan on hand while on the site. f. Explosive materials or loaded holes shall not be left unattended at the blast site. g. A seismograph shall be placed on the track shoulder adjacent to each blast which will govern the peak particle velocity of two inches per second. Measurement shall also be taken on the ground adjacent to structures as designated by a qualified and independent blasting consultant. The Railroad reserves the option to direct the placement of additional seismographs at structures or other locations of concern, without regard to scaled distance. h. After each blast, the blasting Contractor shall provide a copy of their drill log and blast report, which includes number of holes, depth of holes, number of decks, type and pounds of explosives used per deck. i. The Railroad may require top of rail elevations and track centers taken before, during and after the blasting and excavation operation to check for any track misalignment resulting from the Contractor’s activities. 2. The Railroad representative will: a. Determine approximate location of trains and advise the Contractor the appropriate amount of time available for the blasting operation and clean up. b. Have the authority to order discontinuance of blasting if, in his opinion, blasting is too hazardous or is not in accord with these special provisions. 3. The Contractor must hire, at no expense to the Railroad, a qualified and independent blasting consultant to oversee the use of explosives. The blasting consultant will: a. Review the Contractor’s proposed drilling and loading patterns, and with the blasting consultant’s personnel and instruments, monitor the blasting operations. b. Confirm that the minimum amounts of explosives are used to remove the rock. c. Be empowered to intercede if he concludes that the Contractor’s blasting operations are endangering the Railway. d. Submit a letter acknowledging that he has been engaged to oversee the entire blasting operation and that he approves of the blasting plan. e. Furnish copies of all vibration readings to the Railroad representative immediately after each blast. The representative will sign and date the seismograph tapes after each shot to verify the readings are for that specific shot. f. Advise the Railroad representative as to the safety of the operation and notify him of any modifications to the blasting operation as the work progresses. 4. The request for permission to use explosives on the Railroad’s Right-of-Way Right‐of‐Way shall include a blasting proposal providing the following details: a. A drawing which shows the proposed blasting area, location of nearest hole and distance to Railway structures, all with reference to the centerline of track. b. Hole diameter. c. Hole spacing and pattern. d. Maximum depth of hole. e. Maximum number of decks per hole. f. Maximum pounds of explosives per hole. g. Maximum pounds of explosives per delay. h. Maximum number of holes per detonation. i. Type of detonator and explosives to be used. (Electronic detonating devices will not be permitted). Diameter of explosives if different from hole diameter. j. Approximate dates and time of day when the explosives are to be detonated. k. Type of flyrock protection. l. Type and patterns of audible warning and all clear signals to be used before and after each blast. m. A copy of the blasting license and qualifications of the person directly in charge of the blasting operation, including their name, address and telephone number. n. A copy of the Authority’s permit granting permission to blast on the site. o. A letter from the blasting consultant acknowledging that he has been engaged to oversee the entire blasting operation and that he approves of the blasting plan. p. In addition to the insurance requirements outlined in Paragraph 14 of these Provisions, A certificate of insurance from the Contractor’s insurer stating the amount of coverage for XCU (Explosive Collapse and Underground Hazard) insurance and that XCU Insurance is in force for this project. q. A copy of the borings and Geotechnical information or report.

Blasting. (1. ) The Contractor shall obtain advance approval of from the Railroad Engineer and the Sponsor Highway Engineer for use of explosives on or adjacent to Railroad property. The request for permission to use explosives shall include a detailed blasting plan. If permission for use of explosives is granted, the Contractor will be required to comply with the following: a. (a) Blasting shall be done with light charges under the direct supervision of a responsible officer or employee of the Contractor and a licensed blaster. b. (b) Electric detonating fuses shall not be used because of the possibility of premature explosions resulting from operation of two-way train radios. c. (c) No blasting shall be done without the presence of an authorized representative of the Railroad Engineer or his authorized representativeRailroad. At least 72 hours advance notice to the person designated in the Railroad’s notice of authorization to proceed (see paragraph 2.B2B above) will be required to arrange for the presence of an authorized Railroad representative and such flagging as the Railroad may require. d. (d) Have at the job site adequate equipment, labor and materials and allow sufficient time to clean up debris resulting from the blasting without delay to trains, as well as correcting at his expense . Correction of any track misalignment or other damage to Railroad property resulting from the blasting shall be done as directed by the RailwayRailroad’s authorized representativerepresentative at the Contractor’s expense. If his its actions result in delay of trains, the Contractor shall bear the entire cost thereof. e. The blasting Contractor shall have a copy (e) Storage of the approved blasting plan explosives on hand while on the siteRailroad property will not be permitted. f. Explosive materials or loaded holes shall not be left unattended at the blast site(f) Furnish satisfactory evidence of XCU (explosion-collapse-underground damage) insurance coverage. g. A seismograph shall be placed on the track shoulder adjacent to each blast which will govern the peak particle velocity of two inches per second. Measurement shall also be taken on the ground adjacent to structures as designated by a qualified and independent blasting consultant. The Railroad reserves the option to direct the placement of additional seismographs at structures or other locations of concern, without regard to scaled distance. h. After each blast, the blasting Contractor shall provide a copy of their drill log and blast report, which includes number of holes, depth of holes, number of decks, type and pounds of explosives used per deck. i. The Railroad may require top of rail elevations and track centers taken before, during and after the blasting and excavation operation to check for any track misalignment resulting from the Contractor’s activities. (2. ) The Railroad representative will: a. (a) Determine the approximate location of trains and advise the Contractor the appropriate approximate amount of time available for the blasting operation and clean clean- up. b. (b) Have the authority to order discontinuance of blasting if, in his its opinion, blasting is too hazardous or is not in accord with these this special provisionsprovision. 3. The Contractor must hire, at no expense to the Railroad, a qualified and independent blasting consultant to oversee the use of explosives. The blasting consultant will: a. Review the Contractor’s proposed drilling and loading patterns, and with the blasting consultant’s personnel and instruments, monitor the blasting operations. b. Confirm that the minimum amounts of explosives are used to remove the rock. c. Be empowered to intercede if he concludes that the Contractor’s blasting operations are endangering the Railway. d. Submit a letter acknowledging that he has been engaged to oversee the entire blasting operation and that he approves of the blasting plan. e. Furnish copies of all vibration readings to the Railroad representative immediately after each blast. The representative will sign and date the seismograph tapes after each shot to verify the readings are for that specific shot. f. Advise the Railroad representative as to the safety of the operation and notify him of any modifications to the blasting operation as the work progresses. 4. The request for permission to use explosives on the Railroad’s Right-of-Way shall include a blasting proposal providing the following details: a. A drawing which shows the proposed blasting area, location of nearest hole and distance to Railway structures, all with reference to the centerline of track. b. Hole diameter. c. Hole spacing and pattern. d. Maximum depth of hole. e. Maximum number of decks per hole. f. Maximum pounds of explosives per hole. g. Maximum pounds of explosives per delay. h. Maximum number of holes per detonation. i. Type of detonator and explosives to be used. (Electronic detonating devices will not be permitted). Diameter of explosives if different from hole diameter. j. Approximate dates and time of day when the explosives are to be detonated. k. Type of flyrock protection. l. Type and patterns of audible warning and all clear signals to be used before and after each blast. m. A copy of the blasting license and qualifications of the person directly in charge of the blasting operation, including their name, address and telephone number. n. A copy of the Authority’s permit granting permission to blast on the site. o. A letter from the blasting consultant acknowledging that he has been engaged to oversee the entire blasting operation and that he approves of the blasting plan. p. In addition to the insurance requirements outlined in Paragraph 14 of these Provisions, A certificate of insurance from the Contractor’s insurer stating the amount of coverage for XCU (Explosive Collapse and Underground Hazard) insurance and that XCU Insurance is in force for this project. q. A copy of the borings and Geotechnical information or report.