Transportation | KPFF Mountain West

TRANSPORTATION KPFF CONSULTING ENGINEERS

412 E Parkcenter Blvd,

208.336.6985

Suite 200

www.kpff.com

Boise, ID 83706

CONTACT Sean Battle, PE Associate 206.898.4277 cell 208.336.6985 office

EDMO N D S I N TE R U RBAN TRAI L & SNOHOM IS H COUNTY ON- CA LL, INTE RS E CTION IMP ROV E ME N T S

Edmonds Interurban Trail, Edmonds

Snohomish Country On-Call, Intersection Improvements

KPFF provided master planning and design for the federally funded 1.5mile segment of the Interurban Trail. Services included routing studies, design criteria, public involvement, property ownership research and acquisition support, utility coordination, landscape/streetscape design, environmental documentation and permitting, geotechnical studies, crosswalk design, site evaluation, drainage studies, hydrologic and hydraulic analysis, contract plans and specifications preparation, cost estimating, and construction support. Project elements included pedestrian and bicycle trails, sidewalk improvements, street rechannelization to accommodate bike lanes, sewer line, utility coordination, stormwater infiltration and detention system design, and coordination with property owners to maintain access.

KPFF provided civil engineering services for plans, specifications, and estimates (PS&E) for recommended improvements at three intersections per the regional traffic study. Improvements include addition of turn lanes, increasing the pocket lengths, signal design, drainage design, right-of-way plans, and utilities coordination. For the 180th Street SE/ Broadway intersection, alternatives were evaluated for a roundabout versus a signalized intersection. KPFF also assisted in identifying impacts to sensitive areas and worked with the County to find alternative design solutions to minimize these impacts. KPFF provided figures to support the JARPA and assisted in the permitting process. (not shown)

P HINNE Y AV E NUE A RTE RIA L IMPR O V E M E N T S

Phinney Avenue North, Fremont Avenue North, and North 50th Street Arterial Improvements, Seattle, WA KPFF provided project management for the design of the grinding and overlaying of 1.6 miles of asphalt arterial and removal and replacement of four blocks of concrete panel arterial. All intersections were improved with new ADA compliant curb ramps and curb bulbs to improve pedestrian usage of the corridor. Included traffic signal and interconnect plans for 16 intersections. Significant features include the installation of a fiber optic interconnect system, video detection, surveillance cameras, emergency preemption, and controller upgrades.

Through the project’s significant public involvement process, the City added traffic studies and rechannelization of 50th Street to the scope. Design included restriping to change from two lanes each way to one lane each way with a continuous left turn lane. This design addressed the community neighborhood transportation plan. KPFF provided construction support services to the City.

KAMB E R R O A D & EDGEW OOD I NTERURBAN TRA IL

Kamber Road

Edgewood Interurban Trail, Pierce County

KPFF provided project management and civil and structural engineering for this transit center and parking garage. Services included a siting study to evaluate and compare four sites, focusing on accessibility to the key draw areas, the Metro and Sound Transit networks, existing and planned HOV improvements, cost of site acquisition and construction, environmental impacts, and ability to capitalize on existing transit facilities.

KPFF provided both preliminary and final design for the final site selected.

The project involved multi-agency coordination with Sound Transit, King County Metro, and the City of Issaquah.

KPFF provided civil and structural engineering services for preparation of a master plan for City of Edgewood’s 1.8-mile portion of the SeattleTacoma regional Interurban Trail. KPFF prepared construction documents for Phase I. The trail is centered in a 100-foot stretch of Puget Sound Energy right-of-way, following the line of the abandoned Seattle to Tacoma Interurban Electric Railway. KPFF analyzed two trail alignments to assess options for avoiding steep canyon slopes, limiting encroachment on creeks and wetlands, limiting widening cuts, and cutting through or skirting around the location of a collapsed tunnel. KPFF’s feasibility assessment included recommendations for the design and construction of potential stream crossings, a 90-foot-long bridge capable of carrying the load of maintenance vehicles, 1,200 feet of retaining walls, and a braced cut excavation through the location of the collapsed tunnel. (not shown)

R OCK Y RE A CH TRA IL E X TE NTION & S OUND TO OLY M P I C S T R A I L

REDMOND PARK & RIDE

Rocky Reach Trail Extension, Douglas County

Sound to Olympics Trail, Bainbridge Island

KPFF provided civil engineering for the planning and design of a five-mile trail extension along the Columbia River.

KPFF performed hydraulic and hydrologic analysis to determine appropriate culvert and drainage ditch sizes necessary to convey stormwater flows from upland sites past the trail site limits and into the Columbia River discharge points. Extensive coordination with Washington Division of Fish and Wildlife, Washington State Parks Department, Washington State Department of Transportation, and Douglas County was required to harmonize design engineering related to the hydraulic sizing of the drainage facilities and the requirements set forth in project Hydraulic Project Approval provisions. Work also included design of a three-sided box culvert and two small bridge crossings which were analyzed and checked for conveyance to pass 100-year stormwater flows.

KPFF provided drainage and roadway design to provide a separated shared-use pathway along the SR 305 corridor. The project incorporated non-motorized transportation, provided ADA accessibility improvements, improved drainage and safety features, added native plantings with visual and acoustic buffers, and promoted all modes of non-motorized transportation and connectivity to branch trails. It completes the “first mile” of the Sound to Olympics Trail and studies potential branch trail connections. Design also included a structural evaluation of crossing SR 305 to connect with future trail connections. (not shown)

MERC E R C O R R I D OR NON-M OTORI ZED I M PR OV E ME NTS

Mercer Corridor Non-Motorized Improvements, Seattle KPFF is prime consultant for reconstructing several urban streets, constructing a six-lane pre-stressed girder bridge, improving over 25 traffic and pedestrian signalized intersections, enhancing pedestrian and bike accessibility, installing sustainable infrastructure, and constructing electrical, drainage, communication, sewer, and ITS utilities. Other project elements include structural walls, a cycle track, and urban design features.

ME RCE R CORRIDOR NON- MOTORIZ E D IMP R O V E M E N T S

SILVE R D A LE WAY NW & CENTENNI AL TRAI L

Silverdale Way NW Preliminary Design Study and Phase One Roundabout, Kitsap County, WA KPFF led a predesign study for improvements to a two-lane principal arterial. Services included alternative analysis to improve mobility and safety through the corridor and community goals for non-motorized use.

Design included a roundabout, realignment of three approaches, storm drainage improvements, utility coordination, frontage improvements, illumination, and public involvement. Work also included downstream analysis and mitigation of wetland impacts.

Centennial Trail, Snohomish County, WA KPFF provided civil and structural engineering for a multi-phased project for design services for a 10-mile trail corridor improvement along an old BNSF rail line between Lake Stevens and Armar Road Trailhead. The most recent work involved permitting for another eight-mile section between Arlington and the Skagit County line, and final design of the ‘gap’ between Armar Road Trailhead and south city limits of Arlington. When complete, the regional trail will extend nearly 30 miles. The trail accommodates a wide variety of uses and modes, including bicyclists, pedestrians, and equestrians. This project has involved numerous pedestrian bridge projects, including Pilchuck Creek Bridge, Haller Creek Trestle, and Cox Street Trestle.

1 4 TH AV E NUE S OUTH & DE S MOINE S ME MO R I A L D R I V E

TOP:

14th Avenue South Sidewalk and Street Improvements LEFT:

Des Moines Memorial Drive Pedestrian and Safety Improvements

14th Avenue South Street Improvements, Seattle, WA KPFF designed five blocks of street improvements in Seattle’s South Park neighborhood. KPFF participated in Community Open Houses and coordination with the project stakeholders. The team prepared a SEPA Environmental Checklist, Phase 1 Environmental Site Assessment, and a Historical Resource Assessment and legal descriptions for a property purchase.

Des Moines Memorial Drive (South 128th Street to 96th Street), King County, WA KPFF provided prime project management and civil and structural engineering design services for the preparation of final PS&E. The project involved rechannelization of a 2.2-mile-long corridor from four to three lanes; adding bike lanes; reconstructing the existing curb, gutter, sidewalk and retaining walls; overlaying the roadway pavement; adjusting utilities; signal modifications and intersection improvements; and award-winning, historically-significant landscape design.

STAT E AV E N U E

S OUTH 1 3 8 TH S TRE E T ROA DWAY & S IDE WA LK IMPR O V E M E N T S

THIS PAGE:

South 138th Street Roadway & Sidewalk Improvements, OPPOSITE PAGE,

TOP: State Avenue Improvements LEFT: Miller Bay Road Trail RIGHT: Andover Park West Improvements NEXT PAGE

James Street Road Improvements

State Avenue Improvements, Marysville KPFF provided prime consulting and civil engineering services for the preparation of PS&E and right-of-way plans for widening two miles of two- and three-lane roadway to five-lane arterial. Improvements included design of 5,800 linear feet of 18-inch waterline and 4,850 linear feet of 30-inch sewer line as a part of the road reconstruction through developing commercial and industrial areas. Work also included new drainage system and regional detention pond, curb, gutter, sidewalk, retaining walls, illumination, signal systems, median and curbside landscaping, and wetland impact mitigation.

Miller Bay Road Trail Improvements, Kitsap County KPFF was the prime consultant for this multi-purpose trail that is part of a countywide non-motorized trail system. The project involved evaluating trail alignments (both on-street within the existing corridor and alternate cross-country routes), closely coordinating with the landscape architect, and coordinating public meetings. Design will include at least one major bridge as the trail passes through several wetland areas.

Andover Park West Improvements, Tukwila KPFF provided civil engineering and project management for PS&E for a federally-funded project for two new concrete bus pullouts and widening and overlay for 2,000 feet of Andover Park West. The project included roadway widening, median planters, concrete intersection, decorative sidewalk and pavement treatment, sidewalk tree planters, and new pedestrian heads and APS pedestrian pushbutton upgrades. Work also included a new 12-inch ductile iron water main through a commercial/ retail area.

South 138th Street Roadway & Sidewalk Improvments, SeaTac KPFF provided prime project management and civil engineering for the design of roadway and sidewalk improvements along South 138th Street between 24th Avenue South and Military Road South. The project included storm drainage improvements as necessary, roadway widening, and property restoration.

James Street Road Improvement, Bellingham Prime consultant and bridge, civil, and traffic engineer providing PS&E and permitting for this project consisting of improvements to 1/4 mile of arterial roadway and replacement of two structurally deficient bridges.

The project supports anticipated growth in the area while providing multi-modal pedestrian and bicycle connectivity options consistent with the City’s vision. The project site is located within a floodplain and adjacent to sensitive areas including wetlands and fish bearing streams.

Final design included hydrologic and hydraulic evaluation to support permitting of a stormwater design that included modular wetlands and a vegetated wall to blend the large abutment and wing walls into the surrounding environment.

BIRMINGHAM BOISE CHICAGO DES MOINES EUGENE IRVINE LACEY LONG BEACH LOS ANGELES LOUISVILLE NASHVILLE NEW O Y RK PORTLAND SACRAMENTO SALT LAKE CITY SAN DIEGO SAN FRANCISCO SEATTLE SPOKANE ST. LOUIS TACOMA WASHINGTON, D.C.

412 E Parkcenter Blvd, Suite 200 Boise, ID 83706 208.336.6985 www.kpff.com

KPFF is an Equal Opportunity Employer.