Okla. Stat. tit. 19, § 19-1253

commissioners.

No suit shall be sustained to set aside any assessment, or to

contest the area of assessment, or to enjoin the board of county

commissioners from levying or collecting any such assessment, or

installment thereof, or interest or penalty thereon, or issuing the

bonds, or providing for their payment or contesting the validity

thereof on any ground, or for any reason, other than for the failure

of the board to adopt and publish the resolution declaring the

necessity for such improvements and the publication thereof as

provided in Section 6 of this act, and to give notice of the hearing

on the return of the appraisers unless such suit shall be commenced

Oklahoma Statutes - Title 19. Counties and County Officers Page 535

not more than fifteen (15) days after the publication of the

resolution levying assessments and no suit shall be sustained after

the work has been completed and accepted by such county, except for

failure to give such notice of the preliminary resolution of

necessity or the failure to give the notice of the hearing on such

return of the appraisers; and provided, further, that in the event

any special assessment shall be found to be invalid or insufficient,

in whole or in part, for any reason whatever the board may, at any

time in such manner provided for levying an original assessment,

proceed to cause a new assessment to be made and levied which shall

have like force and effect as an original assessment.