(b) The municipality shall make the improvements to the bridge that are determined to be necessary by the commissioner. The commissioner may make periodic inspections during construction of improvements and at the completion of any improvement project. The commissioner shall report on each inspection to the municipality and include identification of any deficiencies with recommended action to correct the deficiencies. The municipality shall reimburse the commissioner for inspections and reports.
(c) The municipality shall establish a separate fund,designated as the "bridge maintenance fund". Proceeds in the fund shall be expended for the purpose of improvements and maintenance of the bridge in a safe and efficient condition for use by the public. Upon the initial inspection of the bridge by the commissioner pursuant to subsection (a) of this section, the municipality shall deposit in the fund an amount equal to the estimate of the commissioner for the costs of the initial improvements to the bridge made pursuant to subsection (a) of this section. Upon completion of the initial improvements, the municipality shall maintain an adequate balance of moneys in the fund sufficient to maintain the bridge annually, as determined by the commissioner pursuant to subsection (a) of this section.