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King County Parks' Capital Improvement Program (CIP) supports the acquisition, development, and rehabilitation of parks, trails and recreational facilities. CIP projects are supported with funding from the 2014-2019 King County Parks, Trails and Open Space Replacement Levy, the Real Estate Excise Tax (REET), and grants.

Looking for CPG projects? Click here.

Bridge and Trestle Program 

There are 86 bridges and trestles in King County's Regional Trails System, including 15 spans that are now more than 90 years old. King County Parks inspects, monitors load rates, repairs, and replaces these structures on an on-going basis.

in our 2014-2019 Levy we committed to repairing or replacing 14 bridges and trestles on our regional trails. By the end of 2016 we will have completed repairs and replacements on 10 of these 14 bridges including:

  • A major rehabilitation on the 400-foot Tokul Creek bridge
  • Replacement of the Snoqualmie Valley Trail #40 bridge near Mt. Si Golf Course
  • Significant stringer and cap repairs to the numerous trestles along the Snoqualmie Valley and Cedar River Trails
  • A significant scour repair project on the Sammamish River Trail

For the remainder of the levy, we will continue our inspection program, as well as completing at least 4 more repairs and replacements, including:

  • Replacement of the trail bridge that leads into Remlinger Farm near Carnation
  • Design of a replacement structure for the #2 bridge on the Preston-Snoqualmie Trail (near Lake Alice Rd.)
  • Tolt-MacDonald Park Additional Suspension Bridge Repair

Project Manager: Jason Rich

Burke-Gilman Trail - Lake Forest Park Improvements

This project is now complete. Read more about it here.

Dockton Park Dock Rehabilitation

Funded in part by a grant from the state’s Boating Facilities Program, this project will replace and repair piles, install additional flotation to stabilize the dock, replace cross-bracing on the fixed pier and hinge points on the finger piers, and install a new sewer pump station, water lines on the dock, and signage.

Estimated project budget: $498,000

This project is currently on hold in 2014.

Project Manager: Jason Rich

Duthie Hill Park Trailhead Development

Funded in part by a grant from the Washington Wildlife and Recreation Program, this project is constructing a main entrance to Duthie Hill Park near SE Duthie Hill Road and SE Issaquah-Fall City Road. The parking lot will include a 74-vehicle parking lot and trailhead facilities, such as picnic benches and signage.

Estimated project budget: $850,000

Permitting took place in 2013 and construction began in July 2014. We expect the project to be completed by winter 2014.

Project Manager: Chris Erickson

East Lake Sammamish Trail

Eastside Rail Corridor

Foothills Trail

King County Parks is initiating the design and construction of a one-mile segment of the Foothills Trail (formerly known as the Enumclaw Plateau Trail) along right-of-way owned by the King County Parks and Recreation Division. The trail segment begins at 252nd Avenue South, just outside and south of the City of Enumclaw, and continues along a former railroad route to its terminus just north of Mud Mountain Road.

King County Parks completed Phase I in 2010, constructing a soft surface trail on a one-mile segment of the trail from 252nd Ave S to just north of Mud Mountain Road near Enumclaw. Phase I also included improving the crossing at 252nd Ave S and installing a new pedestrian footbridge over a small stream that bisects the trail.

Design for Phase II is taking place in 2015-2016.

Estimated project budget: Additional phases, including paving the trail corridor and installing a bridge over the White River, will be completed as funding become available.

Read the 2008 White River Bridge feasibility study.

Project Manager: Chris Erickson

General Facility Maintenance

With 200 parks, 22 restrooms, 26 picnic shelters, 60 parking lots, and 3 historic buildings, it takes a lot of on-going maintenance to keep our facilities operating safely and efficiently so they can remain open for the public to enjoy. 

Examples of general facility maintenance includes repairing roofs and restrooms, re-surfacing sidewalks and walkways, and maintaining building systems (ex: HVAC).

Estimated project budget: $2.2 million

Project Manager: Chris Erickson

Green to Cedar Rivers Trail

This trail will be an 11-mile-long link connecting the Green River Trail to the Cedar River Trail in south King County. Currently in the planning phase, Parks estimates going to construction in 2017.

Project Manager: Linda Frkuska

Lake to Sound Trail

The Lake to Sound Trail includes design and construction of a 16 mile non-motorized transportation corridor and a multi-use recreational trail from Lake Washington in Renton to the shoreline of Puget Sound in Des Moines.

Project Manager: Jason Rich

Marymoor Park

As our most popular park, Marymoor sees more than three million visitors every year, and with so many diverse recreation opportunities and historic facilities located there, King County Parks strives to repair and improvement the park’s amenities and infrastructure.

Projects in 2014 include:
• Sewage pump replacement (completed ahead of schedule, Feb 2014)
• Continued habitat restoration mitigation and monitoring for the Connector Trail (on-going)

Estimated project budget: $200,000

Project Manager: KK Soi

Pinnacle Peak Trailhead Development

Funded in part by a grant from the Washington Wildlife and Recreation Program, this project will construct a 50-vehicle parking lot and trailhead amenities on the south side of the park along SE Mud Mountain Rd. Other project elements include constructing a one-half mile-long access trail and puncheon bridge that connects to the existing trail network and restoring pastureland.

Estimated project budget: $378,000

Permitting will begin in early 2015, and construction is anticipated for late summer 2015. We expect the project to be completed by late fall 2015.

Update October 19, 2016: The Pinnacle Peak Park Trailhead and Parking Lot construction has begun this month. King County Parks has contracted with Pivetta Brothers Construction Inc. to construct the parking lot. The trail connection will be developed by the King County Backcountry Trail Crew. The parking lot is anticipated to be complete by November 2016, with trail construction and on-site restoration to be completed in Winter 2016/2017.

Update July 27, 2016: Additional funding was appropriated in the 2016 supplemental budget and the parking lot portion of the project will be constructed this fall. It is anticipated that the trail connection, site restoration and interpretive signs will be completed in the Spring 2017. The parking lot facility will open when all project components are complete.

Update July 22, 2015: The current project estimate exceeds the estimated project budget. Additional funding will be requested in the next budget cycle (2017-2018) in preparation for an early 2017 construction.

Project Manager: Linda Frkuska

Play Area Rehabilitation


There are 29 play areas in parks throughout King County’s system. Parks conducts annual safety inspections and removes, replaces and/or modifies play areas as needed for safety and life cycle maintenance. Construction is currently underway to replace the play equipment at seven parks in 2015 and 2016. Each playground takes approximately 8 to 10 weeks to construct; however, construction is weather dependent and is subject to change.


The approximate construction schedule for 2015/2016 is:


  • South County Ballfields – Construction Complete and Open
  • Cottage Lake Park – Construction Complete and Open
  • Five Mile Lake Park - Construction Complete and Open
  • Ravensdale Park - Construction Complete and Open
  • Tolt MacDonald Park - Construction Complete and Open
  • Big Fin Hill Park – Closed for construction until approximately December 2016
  • Skyway Park – Design is complete but construction is deferred until the water/sewer project is complete in 2017


Estimated project budget for 2014-2016: $1.1 million


The schedule for the next round of playgrounds to be rehabilitated in 2017/2018 will be posted in early 2017.


Project Manager: Lindsey Miller


Regional Trails System Improvements

With 175 miles of regional trails, King County Parks is continuously repairing and improving our existing paved and soft surface trails and other trail amenities. Surface repairs, such as removing tree roots, evening out bumpy patches, and replacing worn out areas, are on-going and sometimes require brief trail closures.

Projects in 2014 include:
• Soos Creek Trail surface repairs
• Preston-Snoqualmie Trail surface repairs
• Other repairs throughout the system as needed

Estimated project budget: $445,000

Project Manager: Chris Erickson

Soos Creek Trail

[Coming Soon]

Steve Cox Memorial Park

As one of the oldest sites in the system and a much-loved park, Steve Cox Memorial Park requires on-going repair and upkeep for the safety and operation of the park’s buildings and other recreational facilities.

Projects in 2014 include:
• Turf repair in Mel Olson Stadium 
• Roof repair of the racquetball court building
• Surface repair of the parking lot

Estimated project budget: $650,000

Project Manager: Chris Erickson

Taylor Mountain Forest Trailhead Development

Funded in part by a grant from the state’s Non-Highway and Off-Road Vehicle Activities program, this project will construct a parking lot that accommodates 30 vehicles and 25 horse trailers, as well as install trailhead amenities including a vault toilet, kiosk and hitching posts. This project also improves backcountry trails in the northeast area of the forest.

Project estimate:  $350,000 to $430,000

The construction for the parking lot expansion is expected to commence in October 2015. The trail improvements are complete.

Trail Project Manager: Tina Miller

Parking Lot Project Manager: Linda Frkuska

Weyerhaeuser King County Aquatic Center

With three pools, locker rooms, a banquet hall, concession area and 2,500-seat natatorium, the WKCAC is one of the nation’s premier swimming and diving facilities and requires on-going upkeep by King County Parks. Recent upgrades have included installing energy efficient lighting and scoreboard, replacing the HVAC system, repainting the pools, and improving the locker rooms.

Projects in 2014 include:
• Installing a warm water spa on the swimming deck (completed Feb 2014)
• Replacing the dehumidifier for air flow improvements( Design - Feb-June 2014; Construction - Aug 2014)

Estimated project budget: $1.6 million

Project Manager: KK Soi