Issuu

ABO U T K PF F

About KPFF and Understanding

3-5

Interstate and Urban

“ Highly collaborative individuals drive exceptionally creative teams.”

6-9 Rural

KPFF is a full-service civil and structural

For over 30 years, KPFF has worked with public

engineering firm that has worked with clients

agencies to plan, manage, design, and build

14-17 Rehabilitations and Widening

throughout the Northwest for over 58 years.

bridges. From planning through construction, our

18-21 Inspections and Evaluations

With more than 1,000 employees in North

experience incorporates all project phases and

America, including more than 660 licensed

every bridge type, including cable-stayed, steel

engineers, KPFF has the in-house expertise to

truss, suspension, concrete, steel, and timber.

complete projects of all sizes and complexities.

We oversee large teams for multidisciplinary

Of our 18 offices nationwide, four are located in

projects, and, just as often, provide a small team

30-35 Alternate Delivery Methods

Washington, Oregon, and Idaho.

that works closely and directly with our client to

36-37 Roadway

KPFF’s primary focus is to serve our clients.

38-43 Resumes

As a mid-sized company, we combine the one-

10-13 Seismic Evaluation and Retrofit

22-25 Load Ratings 26-29 Pedestrian Bridges and Rail Conversions

Judsen Williams, PE, SE judsen.williams@kpff.com 208.336.6985 412 East Parkcenter Blvd. Suite 200 Boise, ID 83706

project is too big or too small.

on-one, personal service of a small firm with the

Additionally, KPFF accomplishes more than $25

multidisciplinary expertise of a larger one. We

million worth of transportation projects each

pride ourselves on our long-term relationships

year. Our transportation team provides a wide

with our clients and promote a cooperative

range of roadway design services, including

approach to projects that complements the

roadway widening, intersection improvements,

needs, goals, and resources of all stakeholders.

utilities, and drainage and water quality

Bridge and Transportation Engineering KPFF is a leader in the planning, design, and delivery of bridge and transportation projects for public agencies throughout the Northwest.

www.kpff.com

deliver design services for a simple bridge – no

improvements. With the support of our transportation engineers, our bridge team can provide the expertise, creativity, and manpower necessary to successfully deliver projects that meet our client’s goals.

I-405 Bellevue Access, Bellevue, WA

SR 9, 20th Street SE Bridge, Snohomish, WA

I-5 Bridges Vertical Clearance Improvements, Eugene, OR

14th Street Bridge, Lynden, WA

Downtown Portland Interstate Sign Structure Replacement, Portland, OR

I-405 Widening and Express Toll Lanes, Bellevue, WA

I-90 Slide Curve Bridge, Snoqualmie, WA

INTERSTATE & URBAN KPFF has extensive experience designing interstate bridges that help ease congestion and make travel more efficient while also promoting urban growth and development. We enjoy designing and managing interstate bridge projects, which require us to think outside the box in handling constraints of space, accessibility, traffic congestion, and construction schedules. 3

I-405 Bellevue Access, Bellevue, WA

I-5 Bridges, Vertical Clearance Improvements, Eugene to Salem, OR

Wishkah Bridge, Grays Harbor County, WA

OK Mill Road Bridge, Snohomish, WA

Chief Joseph Dam Bridge, Douglas County, WA

Boulder Creek Bridge, Mount Baker, WA

High Bridge, Whatcom County, WA

Cougar Creek Bridge, Washougal, WA

ODOT Bundle 206 Bridge, Boardman, OR

Cottage Grove Bridge, Cotton Grove, OR

RURAL KPFF designs rural bridges that provide vital access over roadways, railroad tracks, rivers, streams, and other sensitive waterways for nearby communities. These structures are built to provide reliable service for decades and often require careful construction planning to avoid inconveniencing the surrounding community. 7

Chief Joseph Dam Bridge, Douglas County, WA

Hilgard Bridge, LaGrande, OR

US 97 Klamath River Bridge, Klamath, OR

Ioa Stream Bridge, Maui, HI

WSDOT I-90 Viaduct, Seattle, WA

WSDOT Seismic Retrofits (26 bridges), Various Locations, WA

North Twin Bridge, Des Moines, WA

Vehicular and Light Rail Approach Ramp Over UPRR, Portland, OR

SEISMIC EVALUATION & RETROFIT KPFF provides specialized expertise in bridge seismic design and retrofit. KPFFâ€™s bridge engineers pioneered the use of base isolation and push-over analysis on Washington State DOT bridge seismic retrofits in the early 1990s, and we use the latest research findings and state-of-the-art design standards for every seismic design and retrofit project we do. 11

US 97 Klamath River Bridge, Klamath Falls, OR

North Twin Bridge, Des Moines, WA

North Proctor Street Bridge, Tacoma, WA

NE 21st Ave Bridge, Portland, OR

Vehicular & Light Rail Approach Ramp over UPRR, Portland, OR

I-84 Meacham Bridges, Meachan, OR

Keene Road Bridge, Richland, WA

REHABILITATIONS & WIDENING KPFF values a collaborative and straightforward approach to bridge rehabilitation through open, continuous communication with our client and other stakeholders. Our goal is to protect the existing structure by providing simple, yet thorough solutions that can extend the bridgeâ€™s life span. We work hard to minimize inconveniences to the public while successfully delivering the project on schedule and within budget.

Keene Road Bridge, Richland, WA

Irrigon Junction, Meacham, and Glover Bridges, Boardman to Meacham, OR

Bull Run Bridges, Gresham, OR

I-90 No Tracks Bridge, Mullan, ID

Sitka-Harbor Bridge, Sitka, AK

William Moore Bridge, Skagway, AK

10th Avenue NW/Hidden Lake Bridge, Shoreline, WA

Graves Creek GPR Evaluation, Cottonwood, ID

INSPECTIONS Many of KPFFâ€™s engineers are also certified inspectors who have performed in-depth and routine inspections on a variety of bridge, utility, and marine structures. Our inspectors are committed to effectively reporting a structureâ€™s condition and verifying its safety and often provide repair, rehabilitation, or replacement recommendations based on our observations. 19

South Oxbow Bridge, Tukwila, WA

Port of Vancouver, Astoria Dock & Pier Inspections, Vancouver, WA

Load Rating Services for Specialized Hauling Vehicles, Franklin County, WA

On-Call Load Ratings, Snohomish County, WA

Maple Street Bridge, Spokane, WA

WSDOT On-Call Gusset Plate Load Ratings, Various Locations, WA

South Park Bridge, Seattle, WA

LOAD RATINGS KPFF has extensive experience developing bridge load ratings. We routinely complete bridge rating summaries as part of our new bridge designs, and load ratings are a critical part of our bridge widening and rehabilitation projects. Our experience includes all major construction materials, such as timber, concrete, and steel, and a variety of bridge styles. 23

Maple Street Bridge, Spokane, WA

WSDOT On-Call Gusset Plate Load Ratings, Various Locations, WA

Canyon Park Bridge, Bothell, WA

NE 100th Avenue Bridge, Kirkland, WA

Park Rose Bridge, Hillsboro, OR

Vancouver Land Bridge, Vancouver, WA

Iron Horse Trail Bridge, King and Kittitas, WA

Ridgefield Pedestrian Bridge, Ridgefield, OR

PEDESTRIAN BRIDGES & RAIL CONVERSIONS Pedestrian bridges can do much more than simply connect points A and B. As an award-winning pedestrian bridge designer, KPFF understands the potential these bridges have to define their communities. We are dedicated to creating structures that enhance and respond to their locations, make economical use of space, and are enthusiastically accepted by the communities that use them. 27

NE 100th Avenue Bridge, Kirkland, WA

Vancouver Land Bridge, Vancouver, WA

SR 520 Evergreen Point Floating Bridge, Seattle, WA

I-405 Braided Ramp Bridge, Bellevue, WA

ALTERNATE DELIVERY METHODS DESIGN-BUILD

Design-build projects are a core part of KPFFâ€™s business, and we have substantial experience with design-build projects of all types and sizes, ranging from smallspan bridges to large multimodal transportation projects. Our engineers enjoy seeing projects from design through construction and working closely with contractors and subconsultants to deliver projects on schedule and within budget.

SR 520 Evergreen Point Floating Bridge, Seattle, WA

I-405 Braided Ramp Bridge, Bellevue, WA

Sound Transit Eastlink 6.5 miles in design

ALTERNATE DELIVERY METHODS GCCM

In our 56 years of experience working in the Pacific Northwest, KPFF has built strong working relationships with many contractors and architects in the region. We have worked on numerous GC/CM-lead projects and understand the importance of working as a team to successfully meet the client and project goals. 35

SR 539 Corridor Improvements, Whatcom County, WA

SR 99 Mercer Street Overcrossing, Seattle, WA

Technology Way, Satsop, WA

SR 97, Klickitat County, WA

State Avenue, Marysville, WA

James Street Road Bridge Replacement and Road Improvements, Bellingham, WA GREENROADS SILVER CERTIFICATION

ROADWAY KPFF provides a wide range of roadway design services and has a reputation for developing innovative designs for major roadways that address the project siteâ€™s issues and complexities. Our experience includes roadway widening, pavement design, ADA improvements, bike lane additions, intersection improvements, green street solutions, utilities, drainage and water quality improvements, cost estimating, and public involvement.

Judsen Williams, PE, SE Structural Principal | BOISE Judsen Williams is the lead of the Boise office and a Principal with KPFF. With over 20 years in the practice of structural engineering, Judsen has developed a passion for working with highly collaborative design and construction teams and enjoys engaging and assisting in all aspects of the project from start to finish. With a broad range of project experience with state and public projects he has the ability to support the client and project needs while proactively solving issues in advance.

EDUCATION MS Structural Engineering, Washington State University BS Civil Engineering, Washington State University REGISTRATION Civil Engineer: Idaho, Washington, California Structural Engineer: Idaho, Utah, California, Oregon Professional Engineer: Oregon PROFESSIONAL AFFILIATIONS Structural Engineers of Idaho The Structural Engineers Association of Southern California Boise City Building Code Approval Board

KEY ENGINEERS

On-Call/Term Agreements • Capital City Development Corporation (CCDC) On-Call Services, 2008-2013, 2014-Present, Boise, ID • City of Nampa On-Call Services, 2016-Present, Nampa, ID • Ada County On-Call Services, 2016-2017, Boise, ID • Regional On-Call Architectural and Roofing Services for State of ID DPW, Boise, ID • City of Boise Plan Check Services, 2016-Present, Boise, ID

State/Public • Boise State University, Multiple Projects, Boise, ID • University of Idaho, Multiple Projects, Moscow, ID • NE 69th Bridge Retaining Wall Design, Washington County, OR • Williams Creek Bridge Deck Formwork Design, Salmon, ID

David McMullen, PE Structural Principal | SEATTLE David is an award-winning bridge designer with 35 years of engineering experience and more than 300 bridge projects to his credit. He has focused his career on local agency bridge projects and brings a full range of project experience, including concept design, preparation of preliminary and final design documents, and all phases of construction management. David has a long history of overseeing projects and is experienced in the full range of issues that accompany widening a bridge over a freeway, including WSDOT, FHWA, and local agency coordination. Keene Road Bridge, Richland, WA

sioning the existing prestressed I-girders. The innovative

Project Manager for repurposing an abandoned four-span,

approach allowed the sidewalk to be widened without adding

412-foot-long railroad bridge into a major vehicular traffic

or replacing existing bridge spandrel girders, which saved

bridge. KPFF’s design kept the “bones” of the railroad bridge

money and reduced permit requirements. Phased construc-

EDUCATION BS, Civil Engineering, University of Illinois

in place and constructed a steel overhang frame and one-

tion maintained traffic.

of-a-kind outriggers around the original steel box girder. The

NE 100th Street Pedestrian Bridge, Kirkland, WA

REGISTRATION Civil Engineer: Idaho, Washington, Illinois, Missouri

the old bridge’s width, improved commuter convenience, and

PROFESSIONAL AFFILIATIONS American Society of Civil Engineers

new bridge, which crosses Interstate 182, more than doubled expanded the City’s trail system at half the cost of building a new structure.

Principal-in-Charge/Project Manager for a new, 100-foot span concrete bridge that allows pedestrian, bicyclist, and emergency vehicle access over WSDOT’s heavily-used I-405. The project required extensive coordination with WSDOT to

I-405 Bellevue Direct Access, Bellevue, WA

secure the necessary right-of-way permits for construction.

Project Engineer for design of approximately $20 million

Other Relevant Experience

in bridge structures, including a curved steel girder direct access bridge at NE 6th Street, a precast girder replacement bridge at NE 4th Street, modification of the NE 4th Street Bridge, and two new cast-in-place concrete approach ramps. This was part of a larger, fast-tracked transportation project that widened the six-lane freeway to provide buses direct access to the Bellevue Transit Center and improved several freeway interchanges. Bridge design required close coordination with Sound Transit, City of Bellevue, WSDOT, and FHWA.

• WSDOT Structural Engineering On-Call • I-405/NE 6th Street to I-5 Widening/Express Toll Lanes • WSDOT SR 520 Floating Bridge • I-90 Slide Curve Bridge • I-90 East Channel Bridge • I-90 Rainier Overcrossing • I-90 D2 Complex

Brissack Bridge, King County, WA Project Manager for the seismic retrofit and bridge widening of a multi-span concrete structure. Design for the slab and sidewalk widening was accomplished by externally post-ten-

KEY ENGINEERS

Anne Streufert, PE, SE Structural Associate | SEATTLE Anne has 17 years of diverse bridge engineering experience, including project management and design of over 100 bridge structures. She can efficiently manage cost and scope in a professional and proactive manner as well as provide engineering and inspection services for projects of all sizes. Anne’s experience includes bridge load rating, rehabilitation, replacement, conceptual design, and program management. She is also a certified NBIS Bridge Inspection Team Leader and has performed in-depth and routine inspections for concrete, steel, and timber bridges. James Street Bridge Replacement, Bellingham, WA

Load Rating Services for Specialized Hauling Vehicles, Franklin County, WA

Prime Project Manager and Lead Structural Engineer for

Project Manager and Lead Structural Engineer working with

replacing two structurally deficient bridges with one sin-

Franklin County to meet the FHWA mandate that requires

EDUCATION MS Civil Engineering and BS Civil

gle-span, concrete girder bridge. Final design included civil

all bridges to be load rated for SHVs. During the first phase,

and structural engineering, traffic analysis, geotechnical

KPFF identified bridges in the County’s inventory that need

Engineering, Washington State University

analysis, hydrologic and hydraulic evaluation, local and fed-

updated load ratings using an in-house spreadsheet devel-

eral permitting, PS&E document preparation, and construc-

oped for this purpose. KPFF updated 34 bridges to include

tion management/support. This project was the first of five

SHV rating factors by the end of 2017 and an additional 30+

on the project site. Other projects include the relocation and

bridges in early 2018.

REGISTRATION Civil Engineer: Idaho, Washington, Illinois Structural Engineer: Idaho, Washington CERTIFICATIONS NBIS-Certified Inspection Team Leader

restoration of Squalicum Creek, extension of the Bay-to-Baker Regional Trail and E. Orchard Drive, and realignment of the James and Woodstock Intersection. Anne managed overall design, construction, and permitting/mitigation phasing for four of the five projects.

WSDOT On-Call Bridge Load Ratings, Various Locations, WA Project Manager and Structural Engineer for the third of three consecutive on-call contracts with WSDOT. KPFF completed load ratings on 14 major bridge structures in

Davis Slough Fish Passage and Culvert Replacement, Skagit County, WA

three months. KPFF engineers performed 2-D finite element

Prime Project Manager and Lead Structural Engineer for

trusses.

replacing a 36-inch culvert that restricted fish passage and was subject to upstream blockage from beaver dams and/or debris. The new, 60-foot-long, single-span, concrete bridge provides a fish-passable connection between the Skagit River and the slough’s high quality salmon spawning habitat. The bridge was constructed in phases without closing the narrow, busy roadway.

analysis for all bridges and gusset plate analysis for the steel

Bridge #399, Grant County, WA Project Manager and Lead Structural Engineer for design of a 66-foot-long vehicular bridge to replace a deteriorating timber, three-span structure over a heavily-used BNSF mainline track. The new single-span bridge consists of precast concrete girders supported on concrete spread footings. KPFF’s design eliminated intermediate piers near the tracks and provided increased vertical clearance for railroad operations.

KEY ENGINEERS

Joel Parks, PhD, EIT Structural Engineer | BOISE Joel Parks is a lead bridge designer out of the KPFF Boise office with bridge design and load rating experience encompassing steel girder, prestressed concrete girder, box girder, and reinforced concrete arch bridges. He has developed a passion for the design of bridges and other structures while earning his PhD in structural engineering from the University of Utah and while practicing at KPFF. Joel excels working with teams and utilize both his technical and practical skills to all projects he works on.

EDUCATION PhD, Structural Engineering, University of Utah MS, Structural Engineering, University of Utah BS, Civil Engineering, Boise State University PROFESSIONAL AFFILIATIONS Structural Engineers Association of Idaho (SEAI)

WSDOT On-Call Bridge Load Rating Services, Various Locations, WA

Red Electric Trail Pedestrian Bridge, Multnomah County, OR

Design Engineer assessing structures using Load and Resistance Factor Rating method per the AASHTO Manual for Bridge Evaluation and WSDOT Bridge Design Manual. Has performed over 19 load ratings for structures ranging from Cable stayed, prestressed box girder, reinforced concrete box girders, steel girder, and reinforced concrete arch bridges.

Structural lead for independent QA/QC of 250 foot, three span, curved steel pedestrian bridge in Multnomah County, OR. The independent QA/QC involved performing individual analysis and design calculations verifying contract drawing design for both gravity and lateral load paths.

Abernathy Creek Load Rating Improvements, Clackamas County, Oregon Lead design engineer developing repair options to restore all rating factors to 1.00 or greater to lift weight restrictions. The Bridge consists of two single span steel trusses that has deficient compression, tension, and gusset members for legal and emergency vehicles. Repair options along with cost estimates were developed and presented to Clackamas county department of transportation.

Boise State University Materials Science Building, Boise, ID Design Engineer for design of a 125,000 gross square foot multi-story laboratory facility at Boise State University. The facility consisted of a mildly reinforced concrete structure and as well as a second steel framed structure.

River Front Park, West Havermale Bridge Replacement, Spokane, WA Design engineer for 50 ft, single span, prestressed double-T bridge spanning a cannel in River Front Park. The design included prestressed double Tâ€™s, abutments and custom steel railing.

KEY ENGINEERS

Stephen Whittington, PE, SE Structural Associate | PORTLAND Stephen has 23 years of experience in the design and construction of structural transportation projects. His structural design experience ranges from large bridge replacements to bridge seismic retrofits, and from small retaining walls to culverts. Stephen has significant experience preparing technical reports as well as complete construction documents including plans, specifications and cost estimates for dozens of projects. In addition to his structural design experience, Stephen possesses the uncommon background of having been a project engineer for a large transportation contractor, giving him a unique perspective that results in valuable input on constructability, cost, schedule, safety and quality. The end result is a project design that is buildable and affordable. ODOT, I-5 Vertical Clearance Improvements, Cottage Grove to Salem, OR EDUCATION BS Civil Engineering, Auburn University MS Constructuion Engineering and Project Management, University of Texas at Austin REGISTRATION Civil Engineer: Idaho, Washington, Oregon, Florida Structural Engineer: Idaho, Washington, Oregon PROFESSIONAL AFFILIATIONS Structural Engineers Association of Washington (SEAW) American Council of Engineering Companies

KEY ENGINEERS

Structural Lead & Overall PM (for final 6 months) for structural designs to raise 12 existing concrete vehicular bridges over I-5. Designs successfully avoided significant impacts to Interstate traffic while still keeping the bridges open to cross-over traffic. The project was completed significantly under budget and ODOT was able to add one more bridge to the project and stay within the original budgeted amount. KPFF supported the project from preliminary design through to construction completion. (Stephen presented this project at the 2011 Western Bridge Conference in Phoenix.)

Clark County, Cougar Creek Bridge Replacement, Washougal, WA Structural Lead and Structural PM for the design of a 60 ft.-long single span replacement bridge over a fish-bearing creek and along a narrow ledge above the Washougal River. Devising appropriate and constructible foundations for the boulder-filled embankment overlying a sloping bedrock layer was a prime technical challenge associated with the site’s conditions. KPFF’s design minimized impacts to the fish-bearing Cougar Creek habitat and facilitated completing construction during a single summer season. Project was constructed with ZERO design-related change orders.

PBOT, NE 21st Ave Bridge Over Columbia Slough Structural Lead on the preliminary and final structural design services for substructure and foundation repairs to the existing 3-span, 128 ft.-long bridge over the Columbia River Slough. The repair design drove new steel pipe piles through cored holes in the deck and in-line with the existing bents’ centerlines. New concrete bent caps were then constructed in stages to transfer bridge loads from the existing substructure over to the new. This approach avoided significant impacts to the existing superstructure, which was in good condition and did not require repairs or strengthening. The innovative repair design saved money and allowed seismic strengtheings to be included on the project. KPFF’s Engineer’s Estimate was within 2% of the average of bidders.

On-Call, Multiple Projects, Clark County, WA Structural PM, and Contract Manager for a range of projects under KPFF’s structural on-call contract with Clark County. Projects types have included bridge rail retrofits, seismic strengthenings, load ratings, bridge replacements, culverts, and retaining walls. Scope of services has ranged from alternatives analyses, technical reports, peer reviews, cost estimates and full PS&E documents. Stephen has been KPFF’s Contract Manager for this on-call contract for over 7 years.

Ron Leimkuhler, PE Transportation Principal | SEATTLE Ron has 38 years of experience in the planning, design, and construction of transportation projects, and has gained the reputation as a leader in the transportation field. Elements associated with these projects include roadway design, utility undergrounding, surface water management, signage and channelization, and pedestrian and non-motorized transportation options. Through his involvement with public agencies and community groups, he has acquired experience to assist clients develop strategies for dealing with environmental permitting, public involvement, and federal funding.

EDUCATION BS Civil Engineering, Montana State University Suspension Bridge Design and Construction Training - U.S. Peace Corps, Kathmandu, Nepal REGISTRATION Civil Engineer: Washington PROFESSIONAL AFFILIATIONS American Society of Civil Engineers American Public Works Association

WSDOT, I-405/NE 6th Street to I-5 Widening and Express Toll Lanes Project, WA

SR 522 Multi-Modal Corridor Stage 3 Improvements, Bothell, WA

Civil Principal-in-Charge for interstate project including a new interchange, major retaining and noise walls, additional travel lanes, and supporting elements. This project added one lane in each direction for 12 miles on I-405 from Bellevue to Bothell to create a two-lane Express Toll Lane System, and re-striped 5 miles of the existing I-405 High-Occupancy Vehicle (HOV) lane from Bothell to Lynnwood to create a one lane Express Toll Lane System.

Principal-in-Charge for road improvements, access management, safety improvements, and business access and transit (BAT) lanes from 96th Avenue NE to 83rd Place NE. This project is a continuation of Bothellâ€™s SR 522 corridor improvements. Key elements include widening of general purpose lanes; adding BAT lanes in each direction; access management; improved Burke Gilman trail crossings; center medians; signals; sidewalks; retaining walls; illumination; drainage improvements; landscaping; and utility undergrounding. The project also involves providing an analysis to determine the feasibility of providing a pedestrian crossing, bus stop, and new access to the Burke Gilman Trail.

State Avenue, 136th Street NE to 152nd Street NE, Marysville, WA Principal-in-Charge for preparation of PS&E and right-of-way plans for widening of two miles of 2-lane roadway to 5-lane arterial. Improvements included road reconstruction, new drainage system, curb, gutter, sidewalk, retaining walls, new 18-inch waterline, illumination, and signal systems. Challenges included alignment analysis, wetland mitigation, access design, high water table, right-of-way acquisition, federal funding permit support, and utility relocation.

James Street Road Bridge Replacement and Improvements, Bellingham, WA Principal-in-Charge for improvements to 1/4 mile of arterial roadway and replacement of two structurally deficient bridges. The project supports the anticipated growth in the area while providing multi-modal pedestrian and bicycle connectivity options consistent with the Cityâ€™s vision.

KEY ENGINEERS

Craig Totten, PE, SE Structural Principal | PORTLAND Craig has 22 years of experience and has worked on 200+ bridge design projects. He maintains a strong list of long-standing clients and renewed on-call public works contracts. These clients include ODOT, City of Portland, Ports of Vancouver and Portland, and Bureau of Land Management. Craig has led numerous large multi-span bridge design projects with complex constraints to smaller structural design projects for simple span bridges and retaining walls.

EDUCATION BEng, Civil Engineering, Strathclyde University, Scotland MS, Civil Engineering, University of Kansas REGISTRATION Professional Engineer: Washington, California, Wyoming, Kansas, Michigan Structural Engineer: Oregon ATC-20 Certified Post-Earthquake Inspector LEED Accredited Professional PROFESSIONAL AFFILIATIONS American Institute of Steel Construction Architects Without Borders Earthquake Engineering Research Institute Engineers Without Borders Structural Engineers Association of Oregon

KEY ENGINEERS

ODOT, US Hwy 97 Bridges Seismic Retrofits, OR

PBOT, NE 21st Ave Bridge Over Columbia Slough

PIC for seismic vulnerabilities analyses and retrofit designs for three multi-span bridges. Scope included developing preliminary drawings and cost estimates for two most feasible options for seismically retrofitting each structure to meet designated performance criteria under a Cascadia Subduction Zone event.

Structural Lead on the preliminary and final structural design services for substructure and foundation repairs to the existing 3-span, 128 ft.-long bridge over the Columbia River Slough. The repair design drove new steel pipe piles through cored holes in the deck and in-line with the existing bents’ centerlines. New concrete bent caps were then constructed in stages to transfer bridge loads from the existing substructure over to the new. This approach avoided significant impacts to the existing superstructure, which was in good condition and did not require repairs or strengthening. The innovative repair design saved money and allowed seismic strengtheings to be included on the project. KPFF’s Engineer’s Estimate was within 2% of the average of bidders. (Stephen presented this project at the 2015 APWA Conference in Pocatello)

Clark County, NE 10th Ave Bridge over Whipple Creek, WA Structural PIC working on design of new three-span, 450 ft-long steel girder vehicular bridge over a deep canyon and sensitive wetlands. Craig helped lead advanced analysis and performance-based design of this jointless, integral abutment-type structure.

ODOT, Bundle 206 Bridge Repairs and Retrofits, Eastern, OR Project Manager for the replacement of one bridge and the load rating and repair of seven existing bridges along I-84 between Pendleton and LaGrande, Bridge repairs included gravity strengthenings to girders and crossbeams to rescind live load weight restrictions to I-84 traffic.

SEATTLE TACOMA LACEY PORTLAND EUGENE SACRAMENTO SAN FRANCISCO LOS ANGELES LONG BEACH IRVINE SAN DIEGO BOISE ST. LOUIS SALT LAKE CITY LOUISVILLE CHICAGO NEW YORK

Judsen Williams, PE, SE judsen.williams@kpff.com 208.336.6985 412 East Parkcenter Blvd. Suite 200 Boise, ID 83706