The Future of Road-making in AmericaHulbert, Archer Butler
History
The Future of Road-making in America
Hulbert, Archer Butler
Roads; Roads -- United States; Roads -- United States -- Design and construction
The road engineers of New Jersey find that they cannot follow old paths
and make their roads after one style or pattern. Technical engineering
in road construction must yield to the practical, common-sense plan of
action. An engineer with plenty of money and material at hand can
construct a good road almost anywhere and meet any condition, but with
limited resources and a variety of physical conditions he has to "cut
the garment to suit the cloth." We start out with this dilemma. We must
have better roads, and our means for getting them being very limited, if
we cannot get them as good as we would like, let us get them as good as
we can.
Let me give a practical illustration. Stone-road construction outside of
turnpike corporations in West Jersey was begun in the spring of 1891. I
was called on by the township committee of Chester Township, Burlington
County, to construct some roads. Moorestown is a thriving town of about
three thousand inhabitants in the center of the township. The roads to
be constructed, with one exception, ran out of the town to the township
limits, being from one-half to three miles in length. The roads were
generally for local purposes. There were ten roads, aggregating about
eleven miles. The bonding of the township was voted upon, and it was
necessary, in order to carry the bonding project of $40,000, to have all
these roads constructed of stone macadam. The roads to be improved were
determined on at a town meeting without consulting an engineer as to the
cost, etc., so that the plain question submitted to me was, Can you
construct eleven miles of stone road nine feet wide for $40,000? The
conditions to be met were these: There was no stone suitable for
road-building nearer than from sixty to eighty miles; cost of freight,
about seventy-five cents per ton; the hauls from the railroad siding
averaged about one and three-quarter miles; price of teams in summer,
when farmers were busy, about $3.50 per day. In preparation for road
construction there were several hills to be cut from one to three feet;
causeways and embankments to be made over wet and swampy ground. For
this latter work the property holders and others interested along the
road agreed to furnish teams, the township paying for laborers. The next
difficulty was the kind of a road to build. As the width was fixed at
nine feet as a part of the conditions for bonding, there seemed only one
way left to apply the economics--that was, in the depth of the roads.
On the dry, sandy soils I put the macadam six inches deep; this depth
was applied to about six miles of road. On roads where the heaviest
travel would come the roadbed was made eight inches deep. On soils
having springs and on embankments over causeways the depth was ten
inches with stone foundation, known as telford. Where springs existed,
they were cut off by underdrains.
Public-domain text, read in full here on John Shaqi.
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