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Tons of special rock material is placed on the roadway.
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ROCK DELIVERY
This material is then graded smooth and compacted to make a good hard,
level base for the asphalt material.
Each “belly dump” can hold up to 13 tons of rock
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CLOSE UPS OF ROCK BEING DEPOSITED
This material comes from several stockpiles around the county
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LEVELLING THE ROCK
After the rock is deposited, grader makes ready to level the rock.
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HERE COMES THE GRADER!
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ROCK THICKNESS
The grader levels the newly deposited rock material to about 8" thickness.
The thickness depends upon how high the roadbed needs to be.
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SLUSHING THE ROAD
The road is "slushed", that is, water is applied to the base.
This brings the “fines” to the surface where they will be compacted by heavy rollers.
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COMPACTING THE SLUSH
The rollers compact the wet material until it is very smooth and hard,
making it ready for the coming asphalt.
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FINAL RESULT
A nice smooth road surface ready for asphalt!
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| Return to Road Building
Go to Step 5 > |
