Clay,

Here's a picture of the invert of the MH in question.


(See attached file: Invert in SS MH.JPG)



It doesn't look bad at all to me.

To do anything, in my opinion, would be to round out the long side to a consistent radius.

I don't see any deterioration in the concrete.

Thank You,

Phillip M. Hutchings
V. P. of Operations
Tri Dal Celina, Ltd.
540 Commerce St.
Southlake, TX 76092
(817) 481-2886 Ext 237
Fax (817) 481-8195