public works

Road Standards

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Road Standards v.2004

Adopted:       February 23, 2004
Ordinance:    0-04-261
Effective:       March 7, 2004


The City of Maple Valley has adopted these road design criteria primarily to set forth specific, consistent road design elements for developers and other private parties constructing or modifying road or right-of-way facilities which require city licenses or permits.

In addition, these Standards are intended to support the City's goals for achieving affordable housing,providing adequate facilities for development in an efficient manner, complying with storm water management and sensitive area policies and to balance these goals with the general safety and mobility needs of the traveling public.

In adopting these Road Standards,the City has sought to encourage standardization of road design elements where necessary for consistency and to assure so far as possible that motoring, bicycling, equestrian, and pedestrian public safety needs are met. Considerations include safety, convenience, pleasant appearance, proper drainage, and economical maintenance. The Standards also provide requirements for the location and installation of utilities within the right-of-way. The City's permitting and licensing activities require the adoption of specific, identifiable standards to guide private individuals and entities in the administrative process of procuring the necessary City approval. Yet, the City must have flexibility to carry out its general duty to provide streets, roads, and highways for the diverse and changing needs of the traveling public. Accordingly, these Standards are not intended to represent the legal standard by which the City's duty to the traveling public is to be measured.

These Standards cannot provide for all situations. They are intended to assist but not to substitute for competent work by design professionals. It is expected that land surveyors, engineers, and architects will bring to each project the best of skills from their respective disciplines. These Standards are also not intended to limit unreasonably any innovative or creative effort, which could result in better quality, better cost savings, or both. Any proposed departure from the Standards will be judged, however, on the likelihood that such variance will produce a comparable result, in every way adequate for the road user and City resident.

Maple Valley Road Standards (MVMC 12.10)

Recommended Street Tree List [PDF]

Drawings in PDF Format


MV-1-001 Principal Arterial
MV-1-002 Minor Arterials
MV-1-003 Boulevard Collector
MV-1-004 Neighborhood Collector
MV-1-005 Business Access
MV-1-006 Neighborhood Access
MV-1-007 Cul-de-Sac
MV-1-008 Temporary Cul-de-Sac
MV-1-009 Eyebrow
MV-1-010 Half Street
MV-1-011 Alley Pavement Detail


MV-2-001 Beveled End Pipe Section
MV-2-002 Catch Basin Type 1
MV-2-003 Catch Basin Type 1-L
MV-2-004 Catch Basin Type 2 - 48", 54", 60", 72" & 96"
MV-2-005 Catch Basin Details
MV-2-006 Curb Inlet
MV-2-007 Through-curb Inlet Frame
MV-2-008 Through-curb Inlet Frame and Grate with Vertical Curb Installation
MV-2-009 Vaned Grate
MV-2-010 Locking Manhole Cover
MV-2-011 Locking Manhole Frame
MV-2-012 Rock-lined Shoulder Ditches
MV-2-013 Flow Restrictor/Oil Pollution Control Device, Tee Type (FROP-T)
MV-2-014 FROP-T Shear Gate Detail
MV-2-015 Flow Restrictor/Oil Pollution Control Device, Baffle Type (FROP-B)
MV-2-016 Debris Cage


MV-3-001 Curb and Sidewalk Joints
MV-3-002 Curb Details
MV-3-003 Curb and Gutter Section Driveway
MV-3-004 Reverse Slope Driveway
MV-3-005 Location and Width of New Driveways
MV-3-006 Joint Use Driveway Tract


MV-4-001 Curb Ramp Locations
MV-4-002 Curb Ramps in Vertical Curb
MV-4-003 Cement Concrete Sidewalk Transition to Asphalt Shoulder
Sidewalk and Curb Ramp in Minimum 25' Radius NEW


MV-5-001 Clearance of Roadside Obstacles on Shoulder Type Road
MV-5-002 Intersection Landing
MV-5-003 Barricades
MV-5-004 Rock Facing, Cut Section
MV-5-005 Rock Facing, Fill Section
MV-5-006 Rock Facing Under Sidewalk
MV-5-007 Rock Facing, Fill Section Reinforcement
MV-5-008 Concrete Steps and Metal Handrail
MV-5-009 Street Tree Standards
MV-5-010 Neighborhood Delivery & Collection Box Unit (N.D.C.B.U.) Mailbox Installation
MV-5-011 Bollards
MV-5-012 Roadway Survey Monument with Case and Cover
MV-5-013 Standard Double Arm Street Light Pole
MV-5-015 Street Name Sign - Steel Post Detail Revised - April 2008
MV-5-016 NO Parking FIRE LANE Sign - Steel Post Detail

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