Profile Level Notes:

The elevation of BMA$={575\mathrm{.}92}^{\text{'}}$

$BS($plus sight$)$ on BMA$={4\mathrm{.}01}^{\text{'}}$

IFS $($minus sight$)$ on STA $0+00={2\mathrm{.}08}^{\text{'}}$

IFS $($minus sight$)$ on STA $0+50=3\mathrm{.}37\text{'}$

IFS $($minus sight$)$ on STA $1+00={4\mathrm{.}08}^{\text{'}}$

$FS($minus sight$)$ on TP$1=9\mathrm{.}16$

$BS($plus sight$)$ on $TP1={3\mathrm{.}71}^1$

IFS $($minus sight$)$ on STA $1+50={10\mathrm{.}33}^{\text{'}}$

FS $($minus sight$)$ den TP$2=4\mathrm{.}17$

What is the elevation of the STA $1+50?$