Anyone ever seen areas expressed like this?
Lot 25 7.a.69. rd.
Lot 26 10.a.155. rd.
Lot 27 13.a.59. rd.
All of the parcel dimensions are expressed in rods...
There are a number of 40 rd. x 40 rd. parcels whose areas are shown as 10.a.
> There are a number of 40 rd. x 40 rd. parcels whose areas are shown as 10.a.
Are you sure that's not 40 rd. X 4 rd.? That would equal 10 acres if I am not mistaken. 40X40 would equal 100 acres.
40 x 16.5 = 660
660 x 660 = 435600
435600 / 43560 = 10
Or maybe I'm having [ANOTHER] senior moment
:-/
> Anyone ever seen areas expressed like this?
>
> Lot 25 7.a.69. rd.
> Lot 26 10.a.155. rd.
> Lot 27 13.a.59. rd.
>
> All of the parcel dimensions are expressed in rods...
>
> There are a number of 40 rd. x 40 rd. parcels whose areas are shown as 10.a.
I have seen that on occasion in this area. What they mean here is:
Lot 25 7 acres and 69/160th of an acre (A rod = 16.5 feet) 1 acre is 1 rod by 160 rods or 160 square rods per acre.
Lot 26 is very close to 11 acres (10 acres and 155/160ths of an acre)
Lot 27 is 13 acres and 59/160ths of an acre.
Larry P
> 40 x 16.5 = 660
>
> 660 x 660 = 435600
>
> 435600 / 43560 = 10
>
> Or maybe I'm having [ANOTHER] senior moment
>
> :-/
No, my senior moment. 40 rd. X 4 rd. would be 1 acre.
Around these here parts, "rd" in the acreage would be an abbreviation for roods
See it all the time:
Acre is obvious
160 rods/poles/perches = 1 acre (obviously these are square measures)
1 rood = 40 rods or 1/4 acre
So we'll see things like:
22 acres
22 acres, 130 poles
or
22 acres, 3 roods, 10 poles
or it may be abbreviated as 22 ac - 3 r - 10 p
or about any other abbreviation / format you can imagine. We have to be flexible.
>...We have to be flexible.
You just looked it up Colonial Manual of Surveying Instructions 😉
What manual?
I didn't know we had any instructions to go by. So much for all my mentors over the last 42 years! 🙂
Parcel areas>Dave
I am stunned that you don't have the pre-1804 manual of Colonial Surveying. What, do you think we just make this all up as we go along?
Parcel areas>Dave
I knew they had a manual....they just wouldn't share it with everyone else......They wanted us to think that they were some kind of professionals. Secrets out....
Parcel areas>Dave
> I knew they had a manual....they just wouldn't share it with everyone else......They wanted us to think that they were some kind of professionals. Secrets out....
Well, it is multi-volume 😀

Parcel areas>Dave
That picture looks like my office. Except it's 2 walls upstairs and another wall in the basement.
Parcel areas>Dave
I have the abridged version for MA. But then again I have the Land Court Manual of Instructions. and yes, that is a "Manual of Surveying Instruction 2009" on my shelf. My little homage to the PLSS.

They are probably referencing a square rod. 160 square rods equals an acre.
"Are you sure that's not 40 rd. X 4 rd.?
Positive, they are square - that's one of the reasons I'm confused...
My apologies. I was thinking of 10 square chains as being an acre and 100 square chains as being 10 acres. Some people get mixed by thinking of 10 square chains as being 10X10 when it's 10 times 1 is 10-squared. But I confused myself. 40 rods X 4 rods (10X1 chains) would be one acre and 40 X 40 would be the equivalent of 10 chains by 10 chains which would be 10 square chains.
It sounds like the "rood" being a rod-squared is some of the confusion as well as far as the abbreviations.
Rods, Perches Or Poles
16.5' x 16.5' x 160 = 43,560 S.F.
I work with a lot of such deeds and it is easy to remember that 159 perches is almost an acre.
Understand that this field work was often reduced on grid paper or a see thru overlay over a grid. The area was almost never "calculated" they just added up all the grids.
For example using a scale of 1" = 66', on 1/4" grid paper, each grid box is a square perch.
Paul in PA
Perches Ain't Square
They're sort of fish-shaped. Smell like them,too.
Colonial State Manual
Not to be outdone by the PLSSia.
"Geodasia: or the Art of Surveying and Measuring of Land, Made EASIE. ...Showing how to lay out new lands in America, or elsewhere:..." Dedicated to "...A most worthy promoter of all Truly Ingenious Knowledg,..."
By John Love, published 168 7/8
Section 4-52