Chapter 12.18


12.18.010    Purpose.

12.18.020    Definitions.

12.18.030    General requirements.

12.18.040    Limitations on pavement disturbance.

12.18.050    Exceptions to limitations on pavement disturbance.

12.18.060    Pavement restoration standards.

12.18.010 Purpose.

The purpose of this chapter is to manage, preserve and protect city roadways and related infrastructure, enhance the safety and comfort of the city’s residents and traveling public, and enable the city to make better use of its tax revenues. The procedures and standards adopted by this chapter are intended to address those problems and meet the purposes of this chapter. (Ord. 2011-728 § 1 (Exh. A))

12.18.020 Definitions.

A. MCMC 12.04.010 is incorporated into this chapter by reference and shall apply to this chapter as though set forth in full.

B. In addition, the following terms have the indicated meaning unless the context clearly indicates to the contrary:

“Patch” means either the physical means of implementing pavement restoration or the restoration product itself.

“Pavement” means the surface of a roadway that is designed for public travel, including roadway shoulders and the structural components underlying the pavement.

“Pavement disturbance” means any activity in a roadway that cuts, damages, removes, replaces, mars, trenches, digs, holes, or disturbs in any fashion the roadway pavement.

“Pavement restoration” means to repair, replace, or reconstruct pavement to its original, or better, condition, than existed before the pavement disturbance occurred.

“Roadway” means any road, lane, alley or right-of-way within the city.

“Work” means, in addition to the definition in MCMC 12.04.010, pavement restoration. (Ord. 2011-728 § 1 (Exh. A))

12.18.030 General requirements.

A. All work performed under this chapter shall require approval and issuance of a right-of-way work permit under Chapter 12.04 MCMC, and is subject to the charges, requirements, procedures, and enforcement mechanism under Chapter 12.04 MCMC.

B. All work performed under this chapter shall meet the following basic standards:

1. The roadway and pavement shall be restored to its original structural condition, or better, at the completion of the work.

2. The work shall be done in accordance with the latest edition of the city of Mill Creek “Design and Construction Standard Plans” manual, which shall be maintained by and is available from the public works department.

3. The work shall be inspected by the city engineer as appropriate and shall require the city engineer’s written approval before the work may be considered complete. (Ord. 2011-728 § 1 (Exh. A))

12.18.040 Limitations on pavement disturbance.

A. The city engineer may place restrictions or limitations on the performance of any work or pavement disturbance in roadways when deemed necessary or appropriate to meet the purposes of this chapter. Without limiting the foregoing, the city engineer may apply the following criteria in making such determinations:

1. Limitations on pavement disturbance may be based on roadway classification as defined in the transportation element of the Mill Creek comprehensive plan.

2. Limitations on pavement disturbance will generally be declared whenever major construction, reconstruction, or a structural overlay has been performed on a roadway. Surface preservation treatments shall generally not be considered a major construction, reconstruction, or structural overlay.

3. Limitations on pavement disturbance will generally apply for a five-year period on collector and arterial roadways after completion of a major construction, reconstruction, or structural overlay.

4. Limitations on pavement disturbance will generally apply for a three-year period on residential and other roadways after completion of a major construction, reconstruction, or structural overlay.

B. When major construction, reconstruction, or structural overlay projects on roadways are planned, the city engineer will give prior notice to utility, communications, telephone, and other similar companies and providers; public utility districts; water and sewer districts; natural gas companies; special purpose districts; and any other pertinent entities about such project. The notice shall generally describe the project and its location, describe the duration of the pavement disturbance limitation likely to be imposed following completion of the project, and encourage the advance planning, coordination, and completion of any pavement disturbance projects by the notified entities before or in conjunction with the roadway project. (Ord. 2011-728 § 1 (Exh. A))

12.18.050 Exceptions to limitations on pavement disturbance.

A. The city engineer may establish or allow exceptions to limitations imposed on pavement disturbance under MCMC 12.18.040. Such exceptions may be granted on such terms and conditions as the city engineer determines best suited to meet the purposes of this chapter.

B. Exceptions granted or allowed under this section may include but are not limited to the following:

1. Emergencies, such as broken water, sewer, or natural gas lines.

2. Utility service upgrades required to meet public health or other similar standards, such as converting failed septic service to public sewer.

3. Required visual locator activities occurring under Chapter 19.122 RCW.

4. Infrastructure maintenance by utility companies needed to meet public health, safety and welfare requirements, such as repair or replacement of essential fire hydrants and water valves.

5. Land development activities approved in accordance with MCMC Titles 14 through 18.

6. Capital projects conducted by the city.

7. Maintenance work performed by city forces.

C. All exceptions allowed or granted by the city engineer shall meet the pavement restoration standards of this chapter. (Ord. 2011-728 § 1 (Exh. A))

12.18.060 Pavement restoration standards.

A. Any work which results in pavement disturbance shall require completion of pavement restoration in accordance with this section and shall return the pavement to its original, or better, structural condition than existed before the pavement disturbance.

B. Unless the city engineer specifies different standards, the following standards shall apply to all pavement restoration and patches:

1. A full depth patch sufficient to match existing pavement depth or four inches, whichever is greater, shall be constructed on and over the disturbed area and to a minimum lateral distance of 12 inches beyond the boundaries of the disturbed area.

2. A minimum two-inch-thick grind and overlay is required for the restored area beyond the full depth patch.

3. Final restoration shall use in-kind patching material to match the existing pavement that was removed, including permeable pavement or concrete.

4. All patch edges shall be sealed with city-approved material.

5. No irregular patch perimeter shall be allowed. Each patch shall have a single straight edge in both transverse (curb to curb) and longitudinal (direction of travel) directions.

6. The minimum patch dimension in both transverse and longitudinal directions shall be 24 inches.

7. A patch shall be extended to the curb and/or edge of lane if the patch is located within 36 inches of such feature.

8. If the transverse dimension of a patch is greater than half the lane width, then the patch shall be extended from the curb to the full lane width or the centerline of the roadway, whichever applies.

9. If two or more patches will be located within 48 inches of each other in the transverse direction, and/or within 10 feet of each other in the longitudinal direction, they shall be combined into a single larger patch.

10. If a new patch is made within any portion of an existing larger patch, then the entire original patch shall be replaced.

11. If a patch will extend over a lane edge or centerline of the roadway, then the patch shall be extended to the full roadway width or nearest lane edge.

C. Temporary patching may be allowed at the discretion of the city engineer and on such terms and conditions as the city engineer determines appropriate.

D. The city engineer shall inspect all pavement restoration during and at the completion of such work. No pavement restoration will deemed complete until the city engineer has approved such work in writing. (Ord. 2017-814 § 2; Ord. 2011-728 § 1 (Exh. A))