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Water Mains

Metropolitan Code of Nashville and Davidson County tit. 15, div. I, ch. 15.16, art. II
in effect

Metropolitan Code of Nashville and Davidson County § 15.16.050 Size restrictions.

15.16.050 - Size restrictions. No water main less than two inches in diameter may be run in any street, county road or state highway unless, in the judgment of the director, he may deem a smaller size main permissible. If a water main less than two inches is permitted, it shall supply one house only and shall be known as a long service pipe. (Prior code § 40-1-69)

Metropolitan Code of Nashville and Davidson County § 15.16.060 Pipe specifications.

15.16.060 - Pipe specifications. All water mains three inches in diameter and larger shall be of cast iron of the bell and spigot type, unless otherwise specified. Mains under three inches in diameter may be of galvanized iron pipe. (Prior code § 40-1-70)

Metropolitan Code of Nashville and Davidson County § 15.16.070 Length restrictions.

15.16.070 - Length restrictions. The following lengths shall be the maximum permissible lengths of water mains of certain sizes: A. Four-inch pipe shall not exceed five thousand feet, including all laterals. B. Three-inch pipe shall not exceed two thousand five hundred feet, including all laterals. C. Two-inch pipe shall not exceed one thousand feet, including all laterals. (Prior code § 40-1-72)

Metropolitan Code of Nashville and Davidson County § 15.16.090 Private mains—Installation supervised by inspector.

15.16.090 - Private mains—Installation supervised by inspector. All work performed in the installation of private water mains shall be done in the presence of an authorized inspector of the department. Such inspector shall be appointed by the director and shall be paid by the owner of the pipe line at the prevailing rate of pay per day or fraction thereof. (Prior code § 40-1-73)

Metropolitan Code of Nashville and Davidson County § 15.16.100 Private mains—Location—Compliance with department requirements.

15.16.100 - Private mains—Location—Compliance with department requirements. The department shall have the right to locate mains, to designate the location of valves and to specify the kind and make of all water main equipment that may be installed in a private water main. The director shall have the right to refuse to furnish or to discontinue the furnishing of water through any main that does not comply with the requirements of the department. (Prior code § 40-1-74)

Metropolitan Code of Nashville and Davidson County § 15.16.110 Valves—Regulations.

15.16.110 - Valves—Regulations. Valves and shutoffs shall be placed on all water lines at points designated by the department, and valve boxes shall be placed over all shutoffs. All valves, shutoff cocks and valve boxes, etc., shall be of a style and make specified by the department. (Prior code § 40-1-75)
Source: Metropolitan Government of Nashville and Davidson County, Metropolitan Code and Charter (Municode Library, library.municode.com)URL: https://library.municode.com/tn/metro_government_of_nashville_and_davidson_county/codes/code_of_ordinances?nodeId=CD_TIT15WASEOTPUSE_DIVIGERE_CH15.16WAMASECOME_ARTIIWAMAFetched: 10/28/2026

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