The policy of the city is to have all existing and new utilities, communication/data lines, and all other above-ground wiring placed underground at the time new development occurs or when the major structure on the site is replaced. All properties adjacent to public roadways are included.
A.
Existing Wiring Systems to Be Placed Underground. For the purposes of this section, existing wiring shall include all distribution wiring run into parcels from utility poles next to public roadways within or adjacent to the development. This includes both existing utility poles and any tension lines. New tension lines and guy wires are allowed where required.
B.
New Wiring Systems to Be Placed Underground. Any construction activities related to development of all land divisions, as defined in BLMC § 17.10.030, multifamily construction, public facilities, or commercial construction shall place all existing and new utilities underground for internal development as well as along the existing and new street frontage adjacent to the project.
C.
The Minimum Amount of Above-Ground Wires to Be Placed Underground. Undergrounding is required from existing pole to existing pole, even if this extends outside the boundaries of the parcels being developed. No new utility poles will be installed. At the discretion of the developer and with approval of the appropriate utility provider(s), utility poles located outside the development boundaries may be moved to the property line of the development to minimize impact on adjacent properties. Any landscaping or facilities on adjacent properties damaged by relocation of utility poles shall be fully restored in a timely manner at the developer's cost. Owners of these adjacent properties shall be contacted at the earliest opportunity by the developer to coordinate work on their properties.
D.
Secondary Services Provided to Properties Adjacent to the Development. Service that extends from primary services that are required to be placed underground by this section to adjacent properties shall be placed underground by the developer. No financial impact on adjacent property owners will be incurred absent agreement between a developer and an adjacent property owner. Any service interruption shall be minimized to the maximum extent practical. Any landscaping or facilities on adjacent properties damaged by placing these secondary service connections underground shall be fully restored in a timely manner by the developer. Owners of these adjacent properties shall be contacted at the earliest opportunity by the developer to coordinate work on their property.
E.
Completion of Undergrounding. Developers must complete the undergrounding of existing utility lines prior to receiving the certificate of occupancy, except that model homes may receive a certificate of occupancy while awaiting placement of above-ground utilities underground.
F.
Exceptions to the Undergrounding Requirement. Placing existing utilities underground shall be waived for:
1.
All residential land divisions of four lots or less, and duplexes, triplexes, and fourplexes where new public roads are not built, unless the property owner voluntarily places the above-ground utilities underground; or
3.
New development for which the city has determined that no other frontage improvements are required as a condition of the development; or
4.
Where existing Puget Sound Energy transmission lines are classified as providing voltages greater than 15,000 volts. All substations are also included in this exemption. In this case, all other above-ground utilities/lines will still be placed underground; or
5.
If otherwise approved by the city engineer where unique site conditions exist such as topographic constraints, or when undergrounding would create public safety concerns.
G.
Fee In Lieu of Placing Existing Above-Ground Utilities Underground. When one of the exceptions set out in subsection F of this section is approved, other than the exception in subsection (F)(2) of this section, a fee shall be paid to the city in the amount of $252.59 per linear foot of frontage adjacent to or in the right-of-way of a public road.
H.
Annual Fee Adjustment. The fee set out in subsection G of this section shall be updated annually at a rate adjusted in accordance with the Engineering News Record (ENR) Construction Cost Index (CCI) for the Seattle area, using an October to October annual measure to establish revised fee schedules effective January 1st of the subsequent year.
(Ord. 1283 § 2, 2008; Ord. 1639 § 1, 2020; Ord. 1702 § 2, 2023; Ord. 1745, 12/9/2025)
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Code reviser's note: Effective January 1, 2026, the rates in this section have been updated pursuant to subsection H of this section, which permits this update without an adopting ordinance.