If I were going to go with only 2 I think I'd make radius one of them. That is the parameter you usually want held.
Oklahoma minimum standards require direction, L, R, D, CH bearing and distance. Oregon requires all that on plats but has no standard for legals. Most folks follow the plat requirement in their legals.
It just makes it easier to calculate and stake with a delta angle. Plus, it's in our regs.
Starting on an eyeball straight line, then around a bend to another straight line
> Starting on an eyeball straight line, then around a bend to another straight line
... to the stump where Philo Blake killed the bear...
TO THE BEGINNING OF A TANGENT CURVE CONCAVE TO THE SOUTHEAST, HAVING A RADIUS OF 160.00 FEET; THENCE NORTHEASTERLY ALONG SAID CURVE, AN ARC DISTANCE OF 92.97 FEET THROUGH A CENTRAL ANGLE OF 33d17'28";
Ditto.
I cogo to the PC, then at right angles the radius distance to the radius point, then right or left the delta the radius distance to the PT then at right angles for the next tangent. If the bearing on the next tangent doesn't match then either I did something wrong or there is a mistake in the description.
I thought radius and chord bearing and distance was a Sacramento County oddity that you don't see elsewhere.
Maybe Joe Spink (a very busy CE from the 1930s to 1960s) brought it from Oregon.
> If I were going to go with only 2 I think I'd make radius one of them. That is the parameter you usually want held.
>
Having the radius does make for quicker longhand calcs. But, I don't see that one length is better than another providing that significant figures are taken into account. For longer radii, I usually use the length of curve as the radius point is not a field located position. If I'm trying to find a r/w monument in the field, I'm going to pace off the curve length. Its the one measurement that helps me most in locating positions.
I find it interesting that some states require more than 2 of the variables. I am curious as to any valid reasoning behind that.
I subscribe to the avoiding potential conflicts theory primarily because of my work putting together construction plans and specs. We try to avoid saying the same thing more than one way. Redundancy has its place, but not when it is a potential source of conflict and introduction of error.
> 
>
> Given the information from the sketch, or whatever else you please, describe the curve from tangent in to tangent out in your format of choice.
THENCE NORTH 56°13'49" EAST ###.## FEET TO THE BEGINNING OF A 160.00 FOOT RADIUS CURVE CONCAVE SOUTHEASTERLY; THENCE NORTHEASTERLY ALONG THE ARC OF SAID CURVE 92.97 FEET, THROUGH A CENTRAL ANGLE OF 33°17'28", (THE CHORD OF WHICH BEARS N 72°52'33"E 91.66 FEET); THENCE N 89°31'17" E ###.00 FEET
I like concavity over left and right and I also use all caps.
Does California have anything in the way of a Minimum Standard of Practice governing legal descriptions?
> I like concavity over left and right and I also use all caps.
Other than that we are very similar.
.....thence N 56°13'49"E, ###.## feet to the beginning of a 160.00 foot radius curve to the right; thence along the arc of said curve 92.97 feet, through a central angle of 33°17'28", (the chord of said curve bears N 72°52'33"E, 91.66 feet); thence N 89°31'17"E, ###.## feet ......
> Does California have anything in the way of a Minimum Standard of Practice governing legal descriptions?
now thats funny right there.
California has several thousand standards of practice. It just depends on who you talk to as to which one applies.
Subtended and concavity? I actually had to look up subtended.
I do it the same way most of you are.
Curve to the right list radius and delta then the arc length to a point (or monument)
THENCE N 56°13'49" E 100.00 feet to a point of curvature of a tangent curve concave to the South;
THENCE Easterly along the arc of said curve, to the right, having a radius of 160.00 feet, with a chord of N 72°52'33" E 91.66 feet, and a central angle of 33°17'28" for an arc distance of 92.97 feet to a point of tangency;
THENCE N 89°31'17" E 100.00 feet…
And I pitched a fit about the Chord requirement. Didn't do any good though.:pissed:
