The Good Roads Problem in Iowa
The Good Roads Problem in Iowa
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In our eReader you can find the full English version of the book. Read The Good Roads Problem in Iowa Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Good Roads Problem in Iowa
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The accompanying views show some of these culverts as built in Iowa and other states.
CEMENT CULVERT IN NEW YORK STATE. These culverts are practically indestructible when properly constructed.
THE IOWA HIGHWAY COMMISSION WILL FURNISH ITS STANDARD PLANS FOR REINFORCED CONCRETE CULVERTS FREE TO ALL IOWA ROAD OFFICIALS WHO WISH THEM.
For culverts and for small bridges, up to 30 feet span, the design with a flat top (reinforced with steel) will usually be more economical to build than the arch desi...gn, because the wooden centering is simpler, and because the flat top has no sidewise thrusts as the arch does. Arches require very solid and expensive abutments on account of this side thrust, while the flat-topped culverts need only thin side walls.
We advise the use of flaring wing walls at each end as in the accom- 18 panying view of one of our model test culverts. We advise also care- ful protection of the culvert from undermining, by a submerged cut off wall at each end, and by a cement floor where necessary.
What to read after The Good Roads Problem in Iowa?
You can find similar books in the "Read Also" column, or choose other free books by Iowa Highway Commission to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The accompanying views show some of these culverts as built in Iowa and other states.
CEMENT CULVERT IN NEW YORK STATE. These culverts are practically indestructible when properly constructed.
THE IOWA HIGHWAY COMMISSION WILL FURNISH ITS STANDARD PLANS FOR REINFORCED CONCRETE CULVERTS FREE TO ALL IOWA ROAD OFFICIALS WHO WISH THEM.
For culverts and for small bridges, up to 30 feet span, the design with a flat top (reinforced with steel) will usually be more economical to build than the arch desi...gn, because the wooden centering is simpler, and because the flat top has no sidewise thrusts as the arch does. Arches require very solid and expensive abutments on account of this side thrust, while the flat-topped culverts need only thin side walls.
We advise the use of flaring wing walls at each end as in the accom- 18 panying view of one of our model test culverts. We advise also care- ful protection of the culvert from undermining, by a submerged cut off wall at each end, and by a cement floor where necessary.
What to read after The Good Roads Problem in Iowa?
You can find similar books in the "Read Also" column, or choose other free books by Iowa Highway Commission to read onlineMoreLess
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