Road Construction Update: Almost...but Not Quite!

NEARLY WORDLESS WEDNESDAY

They're coming to the tail-end of the construction of the new road.
But there are still quite a few little details that must be done before they can
lay the asphalt.


The short extension of our road, the part that comes to the T with Los Pecos Loop,
is smooth and flat. It appears to be ready.

But the back part of Los Pecos Loop,

up in the high meadow, still needs work.

Yesterday, they actually started laying stone

in the borrow-ditch next to the road here.

Last week, they took the forms off the concrete
sides of the utility boxes.
The cable conduits have been labeled with
mysterious numbers indicating what is being delivered
by them, and to which lot.

This week, the boxes are on the concrete,

and have been labeled with the voltages

and a power company serial number

to identify them for the linemen.

To the left is the round water access.

It's begining to look like they could finish any day.

Now we just need good weather, and I will be able to post pictures of the road being laid.

Almost. Done.

Update: Road Construction

April, and warmer, dry weather has arrived. Although in the spirit of complete disclosure, I must add that the March winds have not yet figured out that is is time to "Go, already!"


And among other activities at the Los Pecos Homeschool, we have been watching as the pace of the Building of the New Road had increased.


Fans of John Deere, Komatsu, and Caterpiller, rejoice!


The trench along our road is now 3 feet deep, as two feet of dirt was laid atop the electrical and fiberoptic phone lines, and water pipes were laid atop of them.

N., in his ongoing conversations with the workers, set me straight on this issue. The giant mains laid last fall were for the fire hydrants only. A completely separate system will supply the houses. This is so that in the event of a wildfire or housefire, pressure to the houses will not be disturbed, nor will "household use interfere with fire fighting capability." Is it just me, or is N. beginning to sound like a young civil engineer?

Here we see three water lines bundled near the property lines to two lots. We are not sure what the third line is for. It could be for a lot that lies behind these two, and contacts the road around the bend. Or it could be something else. N. is happy to have another question to ask when "the guys" show up on Monday.






Familiar heavy equipment has been brought down from the fenced storage area up on the ridge by the water tank. Even as the water lines are being laid, rock is being moved, and the road is being flattened and prepared for the underbed materials, layers of rock and gravel that will be covered with asphalt.

N. gets a big kick out of our developer, who is from Canada, and pronounces it "ashphalt." N. is starting to enjoy and appreciate regional differences in idiom, usage, and pronounciation. This is one those great steps forward for an AS kid who is obsessed with rules.


We are all impressed with how 'gianormous'... (Yes, usage Yekkes, I am aware that this is not a "real" word--but I like it anyway). Ahem! ...but as I was saying, how gianormous these machines really are.

N. and my dear Engineering Geek both confess that the immensity of machines makes their hearts go pitter-patter shepping naches* at what human beings are capable of making.

shepping naches: Yiddish for rejoicing the accomplishment of another.

Together, they make a blessing: "Blessed are you, Eternal One, Creator of space-time, who has endowed the human being with knowledge, wisdom, and understanding." This is the same blessing I make when the airplane takes off. I mean, really, how safe can G-d make me if the engineers didn't do their calculations correctly?

Some interesting geology has been temporarily revealed in the trench-cuts. Geologists gravitate toward road cuts, railway cuts, and construction excavations like flies towards you-know-what.

Here you can see a weathered layer of sand and gravel that lies atop a much more consolidated clay layer, under which a gray caliche stripe runs. The caliche shows us an older ground surface, as caliche is formed from mineral rich water evaporating out of the soil surface under the intense New Mexico sun. It leaves behind calcium salts originally dissolved in the water, which forms a hard natural cement, the bane of gardeners across the southwest. The more poorly consolidated rock and gravel above the clay indicate local stream flooding in the near past, and above that the completely mixed top is due to the construction disturbance.

In this picture, there is the construction distubance on top, a pitted layer of surface clay mixed with sand and gravel, and below that a lens of poorly consolidated sand and gravel. That lens is an old stream bed, and the size and angularity of the exposed rocks indicates relatively recent arroyo-type flooding, probably due to summer monsoon flash-flooding. The geomorphology at the surface indicates that this is still an area of run-off, confirming what the rocks are telling us.

This spontaneous, informal Road Construction Unit has also been extremely useful for teaching N. a little bit of geological reasoning. He goes outside and makes his inferences, and then he checks them out by using my old college Introductory Geology text, The Earth's Dynamic Systems.

When he's not talking like a Civil Engineer, he sounds like this. "Hey, mom, would you say that old arroyo activity is Holocene? Or might it go back to the last pluvial? (Pluvial means the lake period associated with the Wisconsin Glaciation. That would be very latest Pleistocene). I think I can detect that those rocks saltated (rolled and jumped) due to the force of the water."

I refuse to speculate, and instead I haul out the Geological Map of New Mexico.

Who knew that (un)school could be this fun?

Road Construction: A Real Life Learning Experience

Contractors have been working most of the past month to complete a new road that will access the new phase of our development in the high meadow. The road is an extension of our road, Los Pecos Trail. It runs south of our house, where it will join a new road, Los Pecos Loop, that will access the hillside east of the end of Los Pecos, and the meadow west and south of it. N. and I have decided to make the best of the noise, dust and inconvenience in order to learn about how developments are planned and roads are built.



Neither N. nor I have seen a road completely built, and since our developer is a civil engineer of great skill, we are seeing a road built RIGHT.

Last fall, before the snow, the worker cleared the right-away of vegetation, and rocks, and created the road bed.

To do so in our area, they had to stabilize the clay soil by mixing it with lime.





In our mountains, the soil is a clay-loam neosol that sits on top of the Pennsylvanian Madera Formation limestone, which is faulted, cracked and pitted with solution basins. The soil on top of the Madera is full of expandible clay minerals that hold cations on the surface of each crystal. The anionic lime attracts and bonds with these cations and makes the clay less likely to expand in the presence of water. This is important to keep the road bed on top of it from cracking and slipping and slumping.



Another important part of building a road from scratch, is the job of bringing utilities along it and up to the property lines of the new lots.

According to the East Mountain Plan, all utilities must be brought in underground for added safety and to preserve views. So in the past two weeks or so, five-foot trenches have been dug along one side of the right-away, along the entire new road.
In this trench, you can see the conduits through which run electrical lines, and fiberoptic cable for telephone and internet service. Cable television is not available in this area, so if folks want luxury TV, they get satellite networks installed.

The water lines were installed separately last fall. We actually had a trench across our driveway for a little while for that job.

In most of the East Mountain communities, there are no sewer systems nor is there a municipal treatment system, because most of us do not live in municipalities. So each homeowner installs a septic system and leech field. Some communities do gray-water processing, and those residents put in a partial, black-water septic system. One community here has an organic waste processing system that recycles both gray and black-water. They use it to support a golf course.



Here in the high meadow, the utilities can be seen at the property lines. In the center, are conduits that contain electrical wires and fiberoptic cables. On either side, the white cylinders are protective casing for water line check-valves, that will eventually be hooked up to water meters. Here, our water is provided by a water co-operative, and each lot owner must buy a membership.

Yes, even here in the boonies, we have fire hydrants. They are required as part of the East Mountain Fire-Wise Plan. Each development must not only install hydrants, but also puts together a fire plan that includes rules about vegetation, and also an evacuation plan in case of wild fire.

In our neck of the woods, natural gas lines are also uncommon. Most of us have a propane tank leased from a proprane company, and many of us have alternative heating, such as passive solar and/or wood and pellet stoves.



We also learned a lot about drainage issues that come with the development of roads. Dirt roads drain more naturally, but become rutted and impassible during mudtime in the spring. And even the grade of dirt roads can block arroyos and small drainages.


Asfalt roads are more convenient but creat greater drainage problems because runoff is rapid. The head of the Sedillo Canyon drainage runs right through our development, and the new road crosses it. The drainage itself will be open space, so as not to impede the movement of water downstream. But the road needs a culvert, about 100 yards above the canyon proper. The upstream side is pictured.

This is the most serious culvert I have seen in our development. The pipes are about four feet in diameter. The rocks are placed on a liner in a sag-pond arrangement, that will slow down the flow across the culvert in times of heavy rain, rationing the water that runs into the canyon in order to preserve a more natural flow rate.



At other points along the road, small rock walls, small dams, and artificial rills have been created on the upstream side, in order to slow the flow of water onto the road. This will prevent pooling and flooding, and also will prevent mudslides onto the road. (Yes that is snow above the rock dam. It is taking a long time to melt even with the recent warm weather).

Mother nature destests unnatural flat zones on hillsides, and will use weathering to even out the slope again. So roads on hillsides require constant maintenance to keep them clear.

What is really cool about this project, is that no rocks have been brought in. All of the rock used for preparing the roadbed and for drainage was dug out of the hillsides to make way for the roadbed.

Unschooling means that we can take the opportunity to learn from what is happening right here and now. In fact, not only is N. studying numerous subjects in unconventional ways, but I am learning something new every day. Through our talks with the work crew and our study of the new road, we are learning about Geology, Geomorphology, Hydrology, Civil Engineering, Physics, and more. Think of the social skills N. is practicing by asking intelligent questions of the work crews, and seeking to know about their lives and work. And he is learning about difference cultures and languages, too. Many of the workers speak excellent Spanish. I never thought I'd learn how to say 'front-end loader' in Spanish.

This is all, as N. puts it, "Way too cool!"