9-10-1:    Permission Required

9-10-2:    Condition Of Permit

9-10-3:    Permit Fee; Inspection (Rep. by Ord. 4723)

9-10-4:    Permittee Liable

9-10-5:    Guarantees And Bonds

9-10-6:    Safety Devices And Barriers Required

9-10-7:    Repealed Ordinances

9-10-8:    Stop Orders

9-10-9:    Franchise Required, Plan Filed

9-10-10:    Utility Extension Plans, Map Required (Rep. by Ord. 4723)

9-10-11:    Trench Restoration And Street Overlay Requirements

9-10-12:    Violations And Penalties (Rep. by Ord. 5588)


It shall be unlawful for any person, firm, corporation or association to construct, cut up, dig up, undermine, break, excavate, tunnel or in any way disturb or obstruct any street, alley or any street pavement, street curb, sidewalk, driveway or improvement in the City without first having obtained written permission as herein provided; provided, however, that in case of an emergency occurring outside the regular office hours whenever an immediate excavation may be necessary for the protection of life or private property, such matter shall be reported immediately to the Department of Community and Economic Development of the City, who may thereupon grant permission to make the necessary excavation upon the express condition that an application for a permit be made in the manner herein provided, on or before noon of the next following business day. Any violation of this Section shall be governed by RMC 1-3-2. (Ord. 5450, 3-2-09; Ord. 5588, 2-7-11)


The Department of Community and Economic Development shall grant such permit only upon compliance with the following terms and conditions:

A.    The party requesting such permit shall make application in writing and simultaneously therewith file with the City’s Department of Community and Economic Development a plat or sketch drawn to scale showing the location and plan of the construction, excavation, cutting or other work desired to be done, and the street, alley or place to be so used, together with a full description of the nature of the work. The City’s Department of Community and Economic Development shall thereupon examine such application and upon approval thereof and the filing of a proper performance bond, as hereinbelow set forth, the Department of Community and Economic Development shall thereupon issue a permit.

B.    Such permit shall specify the place where such acts are to be performed and done together with a description of the proposed work to be done under such permit; the length of time allowed for the completion thereof; the permittee shall further be required to replace, to its former condition, whatever portion of the street, sidewalk, driveway, alley, pavement, curb or improvement that may have been disturbed or affected in any way during such work, and such permit may further specify whether the City elects to do the work of restoring the surface as hereinafter provided.

C.    The acts and work permitted under such permit, and the restoration to its former condition of such street, alley, pavement, curb or improvement, shall at all times be performed under the supervision and control of the Department of Community and Economic Development Street Superintendent or authorized representative, but at the sole cost and expense of the permittee.

D.    In making any excavation, cut or break in any public street, sidewalk, alley or like improvement, the materials thus excavated from the trenches thereof not otherwise suitable for backfilling shall be disposed of as directed by the Administrator of the Department of Community and Economic Development or authorized representative. All such excavations shall be backfilled with approved materials and shall be compacted by water or mechanical tamping.

E.    The maximum length of any open trench during such work shall at no time exceed two hundred (200) lineal feet, except when otherwise granted by special written permission from the Department of Community and Economic Development.

F.    All existing drainage facilities and outer utilities that are moved, disconnected, or disturbed during such work shall be replaced or repaired immediately as directed. A concrete saw shall be used to cut all pavement so as to produce a reasonable square and true edge without spalling or cracking into adjacent pavement. (Ord. 5828, 12-12-16)

G.    If the Department of Community and Economic Development so elects, all excavated materials within the street right-of-way shall be removed and disposed of and planks and saddles placed over trenches so as to provide safe and adequate passage for vehicular and pedestrian traffic at all times.

H.    In excavating any such public street, avenue, curb, alley, sidewalk or like improvement, the surface material and earth removed must be kept separate and deposited in a manner that will occasion the least inconvenience to or interference with the public, with adequate provision for proper surface drainage and safe passage for the traveling public. Such surface or pavement, after refilling, shall be placed in as good condition and wear as it existed immediately prior to the excavations. If the permittee shall fail to complete such work and restore such street, sidewalk, driveway, alley, pavement, curb or like improvement before the expiration of the time fixed by such permit, the Department of Community and Economic Development shall, if it deems it advisable, cause such work to be done by the City or any other party in order to return such street, sidewalk, driveway, alley, pavement, curb, improvement or place to its original and proper condition as it existed immediately prior to such excavation; in such case the permittee shall be liable unto the City for any and all work performed and the City shall have the right to proceed against the performance bond filed by said permittee as herein provided. In addition, the City shall have a right of action against such permittee for all fees, expenses and costs paid out and incurred in connection with such work, not otherwise covered by said bond, or the City may elect to proceed against such permittee directly for all of said work as the City may elect.

I.    The permittee as a further condition to the issuance of such permit shall warrant and guarantee unto the City the work performed and the restoration of the premises for a period of two years from the date of completion of such work.

    When a permit is issued for the excavation for the purpose of installing, maintaining, repairing, or replacing any underground utility within a street, alley or public place, to private property for use of such utility thereon, the permittee or the owner of the premises if the permittee is a person other than the owner, shall further agree, in the application for any such permit, that if the structure or facility on any private property to which the utility is introduced or furnished by the service line shall thereafter cease to be occupied or shall no longer be used or useful, the permittee and each of its successors and assigns will, upon any such occurrence, cut and cap the service line to prevent further service of utility to the structure or facilities, or, upon written demand of the Department of Community and Economic Development, take such similar action. Upon completion of such work, including the capping of utility, the same shall be reported to the Department of Community and Economic Development in writing. Permittee agrees, whenever possible, to notify the City in writing whenever any such structure or facility has ceased to be serviced by the utility or has otherwise discontinued or abandoned the use thereof.

J.    The Department of Community and Economic Development shall have the right to elect, and to specify such election on the permit to be issued, that the refilling of all trenches made in a public street, alley or highway, and the repaving or resurfacing thereof, may be done by the City and any and all cost and expenses in connection therewith to be charged to and paid by the permittee and/or the sureties of his performance bond. Such bond shall be in an amount not less than the anticipated cost of the work to be done or minimum of one thousand dollars ($1,000.00). The City may also demand an adequate cash sum as security to cover such estimated cost at the time of issuing such permit. (Ord. 2879, 9-16-74; Ord. 5450, 3-2-09; Ord. 5457, 5-18-09)


(Rep. by Ord. 4723, 5-11-98)


The permittee shall notify the Department of Community and Economic Development and the Police Department when such excavation is to take place and for what duration. Immediately upon completion of the acts or work allowed under such permit, written notice thereof shall be given to the Department of Community and Economic Development by the permittee. Any delay after such completion in giving such written notice to the Department of Community and Economic Development shall render the permittee liable, as well as the surety on his bond, in a sum of not less than twenty five dollars ($25.00) for each day of any such delay. (Ord. 2879, 9-16-74; Ord. 5450, 3-2-09)


A.    Street Excavation Performance Guarantee Amount: The developer shall deposit the following amount for excavation work within the improved public street, with a maximum of two thousand dollars ($2,000). The cash deposit shall be made prior to issuance of any associated utility construction permit.

1.    If the work within the existing pavement area is less than 35 feet in length, and the permit is issued to the owner of a single-family house, then the cash deposit shall be for five hundred dollars ($500.00).

2.    If the work within the existing pavement area is less than 35 feet in length, and the permit is issued to someone other than the owner of the adjacent single-family house, then the cash deposit shall be for one thousand dollars ($1,000.00).

3.    If the work within the existing pavement area is 35 feet or greater, then the cash deposit shall be for two thousand dollars ($2,000).

4.    Cash Bond Returned: The cash bond will be returned to permittee when work is accepted by the City, less any sums due to the City under the terms of this Section.

B.    Hold Harmless: The permittee shall protect, defend, indemnify and save harmless the City, its officers, employees and agents from any and all costs, claims, judgments or awards of damages, arising out of or in any way resulting from the negligent acts or omissions of the permittee. The permittee agrees that its obligations under this Section extend to any claim, demand, and/or cause of action brought by, or on behalf of, any of its employees or agents.

C.    Insurance Required: Before a permit shall be issued for any construction within the public right-of-way for work over 35 feet in length, both the bond, as described in Subsection 9-10-5A.3, and insurance will be required as follows:

1.    The permittee shall secure and maintain in force throughout the duration of this permit: Commercial General Liability insurance written on an occurrence basis with limits no less than one million dollars ($1,000,000) per occurrence, two million dollars ($2,000,000)/aggregate.

2.    Copies of such insurance policy or policies shall be furnished unto the City with a special endorsement in favor of the City with the City named as a primary and noncontributory additional insured on the insurance policy and an endorsement stating such shall be provided to the City.

3.    The policy shall provide that it will not be canceled or reduced without 45 days’ advanced written notice to the City.

4.    Upon showing of a hardship and at the discretion of the Administrator or his/her designee, the insurance requirements may be reduced or waived for single-family or two-family residential applications.

5.    For municipalities or utilities that are self insured, there may be substituted a statement of self insurance showing the ability to answer for damages in the amounts stated in this subsection.

D.    City Use of the Street Excavation Performance Guarantee: The City shall give the developer 24 hours’ notice of any required correction or clean up work related to street excavation work, except that this shall be reduced to a four-hour notice if there is obvious hazard to health or safety. If the developer fails to adequately respond within the given time frame, the City will perform the work, and any costs incurred will be charged against the cash deposit. City reserves right to perform any work required to protect health and safety of public without prior notification to the developer. All cost associated with such work shall be at the sole expense of the developer and billed against the cash deposit. If there is any possibility of reoccurrence of problems associated with the street excavation work, the City shall then give the developer written notice to replenish the cash deposit to its original level within five calendar days. If the developer fails to replenish the cash deposit as required, the City reserves the right to stop any work on the project which is associated with the street work.

E.    Performance Bond for Required Improvements: Before a permit, pursuant to the provisions of this chapter, may be issued, the permittee may be required to execute to the City a performance bond. In some instances, and at the sole option of the City, a certificate of occupancy, final inspection, or final approval may be issued prior to completion of required public or site improvements if an acceptable form of guarantee is provided by the permittee.

F.    Amount of Required Performance Bond: All performance bonds shall be for not less than 150 percent of the written estimate of the cost of construction of the required improvements associated with any development project. The written cost estimate shall be provided by the developer and is subject to review and acceptance by the City.

G.    Utilization of Funds Provided by Performance Bond: If the required improvements associated with a development project are not completed by the termination date of the performance bond, the City shall use the bond to construct the improvements in accordance with the City’s standards.

H.    Maintenance and Warranty Bond: Prior to acceptance by the City of any newly constructed public improvements to be deeded to the City, repair of any City street associated with a street excavation, or on- or off-site storm drainage improvements, the developer shall file with the City a construction maintenance and warranty bond. The maintenance and warranty bond is to be held by the City for a period of two years. The City shall require the permittee, at his cost, to correct all failures. Should the permittee fail to perform within a period of 15 days, the City may use the maintenance and warranty bond to correct any failures.

I.    Amount of Maintenance and Warranty Bond: All maintenance and warranty bonds shall be for 20 percent of the estimated cost of construction of the required improvements associated with any development project.

J.    Utilization of Funds Provided by Maintenance and Warranty Bonds: In the event that required improvements are not properly maintained during the required maintenance guarantee period, the City shall notify the developer/owner. If the developer/owner fails to correct the problem within a period of 15 days, the City shall use the maintenance guarantee to perform the maintenance work. Should any failures occur in regard to required improvements associated with a development project within the warranty period, the City shall require the developer/owner to correct all failures. Should the developer/owner fail to perform within a period of 15 days, the City shall use the maintenance and warranty bond to correct any failures.

K.     Reimbursement of City’s Costs Incurred to Obtain Funds Provided by Guarantees: If the City finds it necessary to utilize funds provided for any guarantee, and incurs expenses in obtaining and administering such funds, a portion of these monies shall also be used to reimburse the City for such recovery costs. If the guarantee is not adequate to cover all necessary costs, the developer/owner is required to make up the deficit in cash within 30 days of receipt of written notice from the City. (Ord. 3205, 3-20-78, eff. 3-29-78; Ord. 5450, 3-2-09; Ord. 5457, 5-18-09)


In case any public street, alley, pavement, curb, sidewalk or like improvement shall be dug up, excavated, undermined, cut or disturbed, the permittee shall cause to be erected and distributed, and at all times maintained throughout such excavation work, such barriers, lights, signs, flagmen and other safety devices as may be required by the Department of Community and Economic Development and the Police Department of the City, and in accordance with WISHA standards, and failure to do so shall constitute a violation of this Chapter. (Ord. 5450, 3-2-09)


Any and all ordinances, or parts of ordinances, in conflict herewith are hereby repealed. (Ord. 2879, 9-16-74)


Whenever any work is being done in an unsafe manner or contrary to the provisions of this Chapter, the Administrator of the Department of Community and Economic Development may order the work stopped by notice in writing served on any persons engaged in the doing or causing such work to be done. Any such person shall forthwith stop such work until authorized by the Administrator to proceed with the work. Any and all conditions deemed unsafe shall be corrected or removed immediately at the contractor’s expense. (Ord. 3540, 5-4-81; Ord. 5450, 3-2-09)


Whenever any water or sewer district, County or other City utility or any Municipal, quasi-municipal or company shall do work in the public right-of-way of the City, it shall obtain a franchise from the City for initiating such work and shall file with the City, a utility comprehensive plan in the form approved by the City.


(Rep. by Ord. 4723, 5-11-98)


A.    Purpose: The purpose of this Code Section is to establish guidelines for the restoration of City streets disturbed by installation of utilities and other construction activities. Any public or private utilities, general contractors, or others permitted to work in the public right-of-way will adhere to the procedures set forth in this policy.

B.    Definition:

Engineer: The term “engineer” shall denote the City project manager, inspector and/or plan reviewer, or their designated representative.

C.    Application: The following standards in this Section shall be followed when doing trench or excavation work within the paved portion of any City of Renton right-of-way. Modifications or exemptions to these standards may be authorized by the Community and Economic Development Administrator, or authorized representative, upon written request by the permittee, the permittee’s contractor or engineer, and demonstration of an equivalent alternative. (Ord. 5450, 3-2-09)

D.    Hours of Operations: Hours for work within the roadway for asphalt overlays or trench restoration shall be as directed by the Traffic Control Plan requirements and the Traffic Operations Engineer.

E.    Inspection: The Engineer may determine in the field that a full street-width (edge-of-pavement to edge-of-pavement) overlay is required due to changes in the permit conditions such as, but not limited to the following:

1.    There has been damage to the existing asphalt surface due to the contractor’s equipment.

2.    The trench width was increased significantly or the existing pavement is undermined or damaged.

3.    Any other construction related activities that require additional pavement restoration.

F.    City of Renton Standards: All materials and workmanship shall be in accordance with the City of Renton Standard and Supplemental Specifications (current adopted version) except where otherwise noted in these standards. Materials and workmanship are required to be in conformance with standards for the Standard Specifications for Road, Bridge, and Municipal Construction prepared by the Washington State Chapter of the American Public Works Association (APWA) and the Washington State Department of Transportation (WSDOT) and shall comply with the current edition, as modified by the City of Renton Supplemental Specifications.

1.    An asphalt paver shall be used in accordance with Section 5-04.3(3) of Standard Specifications. A “Layton Box” or equal may be used in place of the power-propelled paver. Rollers shall be used in accordance with Section 5-04.3(4) of the Standard Specifications. “Plate Compactors” and “Jumping Jacks” shall not be used in lieu of rollers.

2.    Trench backfill and resurfacing shall be as shown in the City of Renton Standard Details, unless modified by the City permit. Surfacing depths shown in the standard details are minimums and may be increased by the Engineer to meet traffic loads or site conditions.

3.     Requirement for Patching, Overlay, and Overlay Widths: All trench and pavement cuts shall be made by sawcut or by grinding. Sawcuts or grinding shall be a minimum of one foot (1') outside the trench width. The top two inches (2") of asphalt shall be ground down to a minimum distance of one foot (1') beyond the actual outside edges of the trench and shall be replaced with two inches (2") of Class B asphalt, per City of Renton Standard Plan #HR-23 (SP Page H032A). At the discretion of the engineer, a full street width overlay may be required.

Lane-width or a full street-width overlay will be determined based upon the location and length of the proposed trench within the roadway cross-section. Changes in field conditions may warrant implementation of additional overlay requirements.

a.    Trenches (Road Crossings):

(1)    The minimum width of a transverse patch (road crossing) shall be six and one-half feet (6.5'). See City of Renton Standard Plan Drawing #HR-23 (SP Page: H032A).

(2)    Any affected lane will be ground down two inches (2") and paved for the entire width of the lane.

(3)    The patch shall be a minimum of one foot (1') beyond the excavation and patch length shall be a minimum of an entire traveled lane.

(4)    If the outside of the trenching is within three feet (3') of any adjacent lane line, the entire adjacent traveled lane affected will be repaved.

(5)     An area including the trench and one foot (1') on each side of the trench but not less than six and one-half feet (6.5') total for the entire width of the affected traveled lanes will be ground down to a depth of two inches (2"). A two-inch (2") overlay of Class B asphalt will be applied per City standards.

b.    Trenches Running Parallel with the Street:

(1)    The minimum width of a longitudinal patch shall be four and one-half feet (4.5'). See City of Renton Standard Plan Drawing #HR-05 (SP Page H032).

(2)    If the trenching is within a single traveled lane, an entire lane-width overlay will be required.

(3)    If the outside of the trenching is within three feet (3') of any adjacent lane line, the entire adjacent traveled land affected will be overlaid.

(4)    If the trenching is greater than or equal to 30% of lane per block (660 foot maximum block length), or if the total patches exceed 12 per block, then the lanes affected will be overlaid. Minimum overlay shall include all patches within the block section.

(5)    The entire traveled lane width for the length of the trench and an additional ten feet (10′) at each end of the trench will be ground down to a depth of two inches (2′′). A two-inch (2′′) overlay of Class B will be applied per City standards.

c.    Potholing: Potholing shall meet the same requirements as trenching and pavement restoration. Potholing shall be a minimum of one foot (1') beyond the excavation. All affected lanes will be ground down to a depth of two inches (2") and paved not less than six and one half feet (6.5') wide for the entire width of the lane. Potholes greater than five feet (5') in length, width or diameter shall be restored to trench restoration standards. In all cases potholes shall be repaired per Renton Standard Plan #HR05 (SP Page H032). Restoration requirements utilizing vactor equipment will be determined by the Engineer.

4.    Pavement Removal in Lieu of Grinding: The contractor in all cases can remove the pavement in the replacement area instead of grinding out the specified two inches (2") of asphalt. Full pavement replacement to meet or exceed the existing pavement depth will be required for the area of pavement removal. Patching of pervious concrete shall follow American Concrete Institute (ACI) 522.1-13. Porous asphalt shall be specified on a project-by-project basis by the engineer. Permeable materials should be replaced in-kind where feasible. Patching porous asphalt with conventional asphalt is acceptable if it is no more than ten percent (10%) of the total facility area or does not impact the overall facility function. Appropriate precautions shall be taken during pavement repair and replacement efforts to prevent clogging of adjacent surfaces. (Ord. 5828, 12-12-16)

5.    Trench Backfill and Restoration Construction Requirements:

a.    Trench restoration shall be either by a patch or overlay method, as required and indicated on City of Renton Standard Plans #HR-05, HR-23, and HR-22 (SP Pages #H032, H032A, and H033).

b.    All trench and pavement cuts, which will not be overlaid, shall be made by sawcut or grinding. Sawcuts shall be a minimum of two feet (2') outside the excavated trench width.

c.    All trenching within the top four feet (4') shall be backfilled with crushed surfacing materials conforming to Section 4-04 of the Standard Specifications. Any trenching over four feet (4') in depth may use materials approved by the Engineer or Materials Lab for backfilling below the four-foot (4') depth.

If the existing material (or other material) is determined by the Engineer to be suitable for backfill, the contractor may use the native material except that the top six inches (6") shall be crushed surfacing top course material.

The trench shall be compacted to a minimum ninety-five percent (95%) density, as described in Section 2-03 of the Standard Specifications. In the top six feet (6') of any trench, backfill compaction shall be performed in eight (8) to twelve-inch (12") lifts. Any trench deeper than six feet (6') may be compacted in twenty-four inch (24") lifts, up to the top six-foot (6') zone. All trench backfill shall be firm and unyielding but in no case shall be compacted to more than ninety-two percent (92%) of maximum density in permeable pavement areas.

All compaction shall be performed by mechanical methods. The compaction tests may be performed in four-foot (4') vertical increments maximum. The test results shall be given to the Engineer for review and approval prior to paving. The number and location of tests required shall be determined by the Engineer. (Ord. 5828, 12-12-16)

d.    Temporary restoration of trenches for overnight use shall be accomplished by using MC mix (cold mix), Asphalt Treated Base (ATB), or steel plates, as approved by the Engineer. ATB used for temporary restoration may be dumped directly into the trench, bladed out and rolled. After rolling, the trench must be filled flush with asphalt to provide a smooth riding surface. If the temporary trench restoration does not hold up, the contractor shall repair the patch within eight hours of being notified of the problem by the City. This requirement applies 24 hours per day, seven days per week. In the event that the City determines to repair the temporary patch, the contractor shall reimburse the City in an amount that is double the City’s costs in repairing the patch, with the second half of the reimbursement to represent City overhead and hidden costs.

e.    Asphalt Concrete Class E or Class B shall be placed to the compacted depth as required and indicated on City of Renton Standard Plans #HR-05, HR-23, and HR-22 (SP Pages #H032, H032A, and H033) or as directed by the Engineer. The grade of asphalt shall be AR-4000W. The materials shall be made in conformance with Section 9-02.1(4) of the Standard Specifications.

f.    Tack coat shall be applied to the existing pavement at edge of saw cuts and shall be emulsified asphalt grade CSS-1, as specified in Section 9-02.1(6) of the Standard Specifications. Tack shall be applied as specified in Section 5-04 of the Standard Specifications.

g.    Asphalt Concrete Class E or Class B shall be placed in accordance with Section 5-04 of the Standard Specifications; except those longitudinal joints between successive layers of asphalt concrete shall be displaced laterally a minimum of twelve inches (12"), unless otherwise approved by the Engineer. Fine and coarse aggregate shall be in accordance with Section 9-03.8 of the Standard Specifications.

All street surfaces, walks or driveways within the street trenching areas shall be feathered and shimmed to an extent that provides a smooth-riding connection and expeditious drainage flow for the newly paved surface.

Feathering and shimming shall not decrease the minimum vertical curb depth below four inches (4") for storm water flow. The Engineer may require additional grinding to increase the curb depth available for storm water flow in areas that are inadequate. Shimming and feathering as required by the Engineer shall be accomplished by raking out the oversized aggregates from the Class B mix as appropriate.

Surface smoothness shall be per Section 5-04.3(13) of the Standard Specifications. The paving shall be corrected by removal and repaving of the trench only. Asphalt patch depths will vary based upon the streets being trenched. The actual depths of asphalt and the work to be performed shall be as required and indicated on City of Renton Standard Plans #HR-05, HR-23, and HR-22 (SP Pages #H032, H032A, and H033).

Compaction of all lifts of asphalt shall be a minimum ninety-two percent (92%) of density as determined by WSDOT Test Method 705. The number of tests required shall be determined by the Engineer.

Testing shall be performed by an independent testing lab with the results being supplied to the Engineer. Testing is not intended to relieve the contractor from any liability for the trench restoration. It is intended to show the inspector, and the City, that the restoration meets these specifications.

h.    All joints, except those associated with permeable pavement, shall be sealed using paving asphalt AR-4000W. (Ord. 5828, 12-12-16)

i.    When trenching within the unpaved roadway shoulder(s), the shoulder shall be restored to its original condition, or better.

j.    The final patch shall be completed as soon as possible and shall not exceed fifteen (15) working days after first opening the trench. This time frame may be adjusted if delays are due to inclement paving weather or other adverse conditions that may exist. However, delaying of final patch or overlay work is subject to the Engineer’s approval. The Engineer may deem it necessary to complete the work within the fifteen (15) working day time frame and not allow any time extension. Should this occur, the contractor shall perform the necessary work, as directed by the Engineer.

k.    A City of Renton Temporary Traffic Control Plan (from Renton Transportation Engineering) shall be submitted and approved by the Engineer a minimum of three (3) working days prior to commencement of work.

6.    Removal of Utility Locate Markings from Sidewalks Required: The permittee will be required to remove utility locate marks on sidewalks only within the Center Downtown Zone. The permittee shall remove the utility locate marks within 14 days of job completion. (Ord. 3832, 8-13-84; amd. Ord. 4861, 9-18-00; Ord. 5131, 4-4-05; Ord. 5607, 6-6-11)


(Rep. by Ord. 5588, 2-7-11)