Limestone operations inside ten miles
This village sits in the middle of a ring of them. The Curtin Gap Quarry of Heidelberg Materials is 2.35 miles north-west with 18 people, and the Pleasant Gap aggregate plant of Glenn O Hawbaker 2.87 miles south-west with 51.
Further out it keeps going: the Oak Hall Quarry 10.00 miles south-west with 13 people. A rail yard sits 4.99 miles west.
Fifty-one people at one plant under three miles away is a substantial employer to have on the doorstep of a village.
All that industry, and three restricted crossings
That density does not carry through to the roads, which is the surprise here. Within 10 miles the National Bridge Inventory records 151 structures and only 3 are below legal loads.
The nearest of the three is 7.02 miles north on a borough-maintained bridge clearing 45.4 tonnes, which a legal load crosses whole. The lowest anywhere in the circle is 26.3 tonnes 8.26 miles out on a township road, which takes a truck part loaded. Nothing here is closed.
So a loaded truck leaves this village in any direction for seven miles without meeting a posting at all, and the tightest thing it can meet inside ten still carries most of a load. For a district moving this much stone, that is the arrangement you would want and rarely get.
The county maintains no bridges here at all
Those three postings — 7.02 miles north and 8.26 miles out among them — belong to a borough and to townships, and that is the whole local story, because Centre County holds nothing. Across all 366 structures the file records in this county, not one is county-maintained: 275 are the state’s, 55 the townships’, 19 a park or forest agency’s, 10 private and 5 municipal.
In this county the road department does not appear in the National Bridge Inventory at all, and the reason to state it is practical rather than curious. A seller told to ask the county about a weight limit here would be sent to an office that maintains no bridges; the posting on a local road belongs to a township or a borough.
It also explains the openness. Where the state maintains three-quarters of the network, the network gets replaced on a state programme rather than posted and left, which is a different maintenance economy from a county of small township bridges.
Lime is not aggregate, and the truck knows the difference
So the loads around this village are of two kinds and they are not the same job. The quarries send crushed stone out in dump bodies over short distances — the Curtin Gap Quarry 2.35 miles north-west and the Pleasant Gap aggregate plant 2.87 miles south-west are high-cycle aggregate work, loaded and tipped many times a day.
The lime plants are the other case. Burnt and hydrated lime is a fine dry powder that moves in pneumatic tankers, blown off rather than tipped, and it goes to industrial customers rather than to building sites. That is a different vehicle, a different discharge cycle and a different set of things to inspect: blower, lines, seals, hatches and the tank itself.
Site-specific hazard awareness training is required for over-the-road delivery drivers before work at each mine site, so a driver who ran into several of these operations often has the record of which.
A pneumatic tanker that carried lime has done real work with a low odometer, and the wear is in the discharge gear rather than the driveline. We ask what it hauled because the answer changes where we look, not whether we buy.
- Can you get a loaded truck out of here?Easily. Nothing within seven miles of this village is restricted at all, and the tightest crossing inside ten rates 26.3 tonnes 8.26 miles out.
- It is a tanker, not a dump.Lime tankers off the plants round here are common and the things we check are the blower, lines, seals and hatches rather than a hoist.
- Who posts the road, the county?
Around the Pleasant Gap aggregate plant 2.87 miles south-west they turn up steadily.