§ 350. Pending actions or proceedings. This chapter shall not affect pending actions or proceedings, civil or criminal, pertaining to the construction, improvement, maintenance, supervision or control of highways and bridges, brought by or against the commissioner of transportation, or county engineer or a county superintendent of highways, or a town superintendent of highways, under the provisions of any statute hereby repealed, but the same may be prosecuted or defended in the same manner by the department of transportation or by the officer having jurisdiction in respect thereto. Any investigation, examination or proceeding undertaken, commenced or instituted by the commissioner of transportation, county engineer, county superintendent of highways, or town superintendent of highways or either of them relating to highways or bridges may be conducted or continued to a final determination by the proper officer hereunder, in the same manner, and under the same terms and conditions, and with the same effect as though this chapter had not been passed.