Before entering upon his duties the county engineer shall give a bond unto the state of Kansas with surety to be approved by the board of county commissioners in the sum $2,500, conditioned upon the faithful discharge of his duties and the protection, care and return of all property of the county which may come into his custody: Provided, Where the county engineer districts have been formed the bond shall be made payable to the state of Kansas for use of each county forming such district.

L. 1917, ch. 264, § 14; March 7; R.S. 1923, 68-505.