Sullivan County
Four people, and a plant that stands in Lincoln County
MSHA records 4 employees at the IROCK Portable #1.
This plant belongs to Magruder Limestone and stands in Lincoln County, 141.40 miles from Milan and 0.36 miles from Magruder Limestone-Troy Quarry — a fixed quarry of the same company.
So those figures describe Lincoln County
Within ten miles of the plant the national bridge file counts 105 structures.
The median operating rating of the item-41 group is 30.6 metric tonnes, which no loaded stone truck approaches — so most of the signs out there are not about a truck like this at all.
Of the 6 restricted by item 70, 3 are county-maintained and the nearest is 2.86 miles away. The lowest rating among them is 14.4 metric tonnes, about 15.9 US tons, and that is also the lowest that admits a loaded commercial vehicle — so nothing in this circle is closed to a commercial truck outright, and the constraint is how much it carries across rather than whether it crosses.
Across Lincoln County as a whole, 8 of 102 county-maintained structures fail item 70. A mild county with a handful of tight crossings is a routing problem rather than a wall.
Around the IROCK Portable #1 — four people on the MSHA roll, 0.36 miles from its own company’s Troy quarry — and across the ground between Lincoln County and Sullivan County, this country turns over a steady amount of it.
- Makes no difference to us. A portable setup meets the same crossings with the same equipment, and this one sits 0.36 miles from its own company’s fixed pit anyway.
Around the IROCK Portable #1, 0.36 miles from its own company’s Troy quarry in Lincoln County, and across Sullivan County, there is usually one sitting.