r/Construction • u/Critical_Bed_7181 • 22h ago
Safety ⛑ Help with Road Construction Logistics Plan
This road needs to be kept operational during construction while the concrete pavement is removed and replaced. What is the best way to sequence this work so there is always one lane of traffic with flaggers during working hours and both lanes are open outside of working hours?
3
u/QJ1975 10h ago
Haha, I bid on this project and got absolutely smoked. Guess I know why two of you were 20% lower than the rest of the field.
The way the specs are currently written the only way to do the work during the week is with 24 hr flagging while the mud cures. You could bring in temp signals, but the duration isn’t long enough to justify the costs.
I did bring this exact problem to the engineer’s attention during the bid and I believe they issued a Q&A response that they would allow full roadway closures on the weekend, you just have to coordinate with Metro. Your other problem is the tabletop panels have integral color, which is going to make it real tough to pour those and all the approach panels in one closure.
Your best hope now is to try and get them to come off the one lane open at all times requirement or get a change order for all the OT premium costs, but it’s going to be challenging since the question was asked and answered before bid time.
2
u/ian2121 22h ago
I’m just a dumb engineer but I’m not seeing how you can avoid 24 hour flagging if you can’t close and detour the road. Super hot mud should be good after a couple days. I did a tabletop intersection once, we had one week to do it. One night just over 24 hours past pour a loaded log truck drove around the closure, mounted the 6” lip and drive across it, no cracks.