City Section Corner Recovery

JP-

Bearing in mind we have very few boundary monuments in southern Ontario at the centre lines of streets .....

1] How would you know there is some survey evidence in the middle of a busy roadway that may take a good part of the day to look for anything ?

2] So you get a brilliant reading with your bar finder on top of asphalt or concrete at -10F.

Now what ?

or, B-) do you carry a willing high hoe operator as part of your crew ?

3] How do you reference the Section Corners so you won't need to 'go diggin' again ?

Enquiringly yours in hopes of educating us,

Cheers,

Derek

I failed to mention that this intersection was scheduled to be completely removed and repaved. There was a visble existing monument in a core in the pavement, but we could never determine where it had come from or if it indeed marked the correct corner location. Whenever the City of Lincoln schedules a pavement removal at a section corner location, I try to get out there to record what is below the pavement since there will likely never be another opportunity. We already had a position on the monument. As soon as that section of the pavement is replaced and repaved, we will drill a new core and place a cast monument well along with a new monument. Then reference ties to light pole bases or other objects off to the side.

> We did not have very good history how the iron pin came to be at that location, but it has been accepted as the section corner monument.
>

The pattern of deformations on the bar looks post-WWII. Since I remember downtown Lincoln's brick streets in the 1950's, I assume the concrete pavement came afterward?

Nobody can say you didn't look well enough. Very cool...

Very nice! Good job!

I agree, putting the effort out to coordinate with paving removal is a good technique to resolve these sorts of thing that rarely see good resolve.

Posterity and precision get to work together now and then!