Costs of materials varies by regions, and type of materials. We could do an example. Say you are going to use crushed concrete. Around here, it's about $10 a ton. 800lf x 12ft wide, and 4 inches thick, right? 800 x 12 / 9 x 4 / 17 = 250.98 ton. When compacted properly using a vibratory roller and applying water to aid in compaction you will lose a 1/4" per inch in depth, so you will end up with 3 inches compacted. You said 3 to 4 inches was what you wanted right?
So at $10 a ton, and we will round to 250 ton to make it easy, that's $2,500.00. That's not delivered. The trucking is where it gets expensive. Depending on distance, it's going to run around $12 to $17 a ton. Let's average that out to $15. So now we're at $25 a ton. 25 x 250 is $6,250.00.
800lf of roadway, 12' wide. Let's say they use a grader and roller. And you're gonna let JC wet it for you for compaction after the fact. Saves money. So a grader around here with a competent operator is between $100 to $125 per hour. Roller will be $50 to $60 per hour. Then there's mobilization. Depending again on distance, it may be $300 minimum. So we'll use that.
You don't describe conditions other than rough if I recall. So let's figure it cheap. 2.0 hrs to shape your existing road and roll the sub grade. We'll use the cheaper hourly rates, $100 & $50. 2 hours @ 100, and one @ 50, so $250.
So 250 ton, figure 22 ton per load, round that out to 11 loads. That's time. Unless the material is close, sitting and waiting for each load. So the grader knocks it down, and if he's competent, he's shaping while waiting for each load. They may only charge for roller run time, but doubt it. Best guess, you're looking at 10 hours for equipment, at 150 an hour. That's $1,500.00.
So $6,250.00+300.00+1,500.00=$8,050.00.
I could be wrong.
