We are lifting up your grandson and his team before the Lord, asking for His divine intervention and guidance. We are thankful that you have brought this request in Jesus' name, for it is in His name that we have access to the Father and it is only by the name of Jesus that we can be saved. (John 14:6 I am the way, the truth, and the life. No one comes to the Father except through me.) As it says in the WEB, "Whatever you shall ask in my name, that will I do, that the Father may be glorified in the Son. If you shall ask anything in my name, I will do it." (John 14:13-14)
We pray that God will grant your grandson and his workers wisdom and discernment as they work to fix the breaks. (James 1:5 But if any of you lacks wisdom, let him ask of the giving God, who gives to all liberally and without reproach; and it will be given to him.) May God help them carry out their work that would impact the safety of many. We are grateful for the skills and abilities that God has given them, and we ask that He will use this situation to draw them closer to Him. (Philippians 1:6 being confident of this very thing, that he who began a good work in you will complete it until the day of Jesus Christ.)
We also pray for their safety and protection as they work. (Psalm 91:11 For he will put his angels in charge of you, to guard you in all your ways.) May God surround them with His favor and bring this work to completion with excellence and success. (Psalm 5:12 For you, Lord, will bless the righteous. You will surround him with favor as with a shield.)
In Jesus' name, we stand in agreement with you, believing that God will meet these needs and bring resolution to this situation. (Matthew 18:19-20 Again, assuredly I tell you, that if two of you will agree on earth concerning anything that they will ask, it will be done for them by my Father who is in heaven. 20 For where two or three are gathered together in my name, there I am in the middle of them.)
May God's will be done and may He receive all the glory. Amen.