The right to lay culverts under accessways such as driveways within the street area of an unimproved street is expressly reserved to the City. A person desiring the installation of a culvert shall apply to the City requesting it, stating its length, location and purpose. The applicant shall deposit with the City Engineer the fee provided by section 3.365. The City Engineer shall issue a permit specifying the length, diameter, location, and position of the culvert and other specifications necessary for the construction of a culvert adequate to convey the surface water, with regard to the preservation of the street and the protection of property abutting the street. The City shall construct the culvert pursuant to the permit. The City Engineer may allow a prequalified contractor to install the culvert under certain conditions.

Stormwater conduits lying within the public right-of-way and crossing minimum access drives, private streets or other accessways, and which have been designed by a registered professional engineer, may also be installed by a private contractor if the design has been approved by the City Engineer. In such cases, the stormwater conduit will be permitted as part of the public improvements for the development and a separate culvert permit will not be required.