Tim Johnson, Ph.D. P.E.
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Tim Johnson, Ph.D. P.E. Email & Phone Number

Senior Bridge Engineer at Keller Associates, Inc.
Location: Post Falls, Idaho, United States 5 work roles 3 schools
1 work email found @kellerassociates.com LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

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Current company
Keller Associates, Inc.
Role
Senior Bridge Engineer
Location
Post Falls, Idaho, United States
Company size
198 employees

Who is Tim Johnson, Ph.D. P.E.? Overview

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Tim Johnson, Ph.D. P.E. is listed as Senior Bridge Engineer at Keller Associates, Inc., a company with 198 employees, based in Post Falls, Idaho, United States. AeroLeads shows a work email signal at kellerassociates.com and a matched LinkedIn profile for Tim Johnson, Ph.D. P.E..

Tim Johnson, Ph.D. P.E. previously worked as Bridge Engineer at Keller Associates, Inc. and Bridge Engineer at Lochner. Tim Johnson, Ph.D. P.E. holds Phd, Structural Engineering from University Of California, San Diego.

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Email format at Keller Associates, Inc.

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*@kellerassociates.com
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Profile bio

About Tim Johnson, Ph.D. P.E.

I am a bridge engineer who has worked on a variety of different transportation-based structures from bridges to culverts to retaining walls. Project delivery methods have included design-build and conventional PS&E, and much of my work involves interdisciplinary coordination and synthesis of a multitude of client needs within structural systems. Examples of work include bridge widenings, seismic retrofits, non-standard retaining wall design in regions of high seismicity or poor soils, and coordination of complicated utility crossings through bridge superstructures. My emphasis is on reinforced and prestressed concrete structures including prestressed, post-tensioned girder bridge superstructures, concrete anchorage, and miscellaneous specialty work such as utility protection detailing.My academic background is a combination of nonlinear analysis, seismic code assessment, and anchorage into concrete. Particularly, my doctorate focused on the ACI 318 Appendix D (now chapter 17) valuation of ductile vs. non-ductile anchorage systems and provided recommendations for code developers with regards to overstrength factors specified in Chapter 13 of ASCE 7. I have an extensive teaching background at SDSU, covering many classes from Solid Mechanics (Lab and Lecture) to Structural Analysis to Earthquake Engineering. Technically, my emphases are first-principles analysis of structural systems, structural dynamics / seismic assessment, and concrete anchorage.

Listed skills include Structural Engineering, Earthquake Engineering, Sap2000, Nonlinear Analysis, and 7 others.

Current workplace

Tim Johnson, Ph.D. P.E.'s current company

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Keller Associates, Inc.
Keller Associates, Inc.
Senior Bridge Engineer
Post Falls, ID, US
Website
kellerassociates.com
Employees
198
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5 roles

Tim Johnson, Ph.D. P.E. work experience

A career timeline built from the work history available for this profile.

Bridge Engineer

Current
Keller Associates, Inc.

Idaho

My work at Keller comprises full-service transportation structure design -- primarily, but not exclusively, for local clients in Idaho. We design a large volume of bridges and retaining structures with unique site constraints, tight budgets, and aggressive schedules. My work encompasses client interfacing, technical development, specifications, estimating.

Dec 2021 - Present

Bridge Engineer

Lochner

Bridge engineer with a wide range of experience. Projects include: - Planning, design, and construction support for a 16 mile long corridor with 37 structures under design build conditions for Caltrans. Major work included independent check of a prestressed, post-tensioned spliced girder bridge superstructure, seismic retrofit and widening of a major river.

Sep 2017 - Nov 2021

Doctoral Student, Researcher, And Instructor

University Of California San Diego / San Diego State University

San Diego, CA

My program was joint, meaning all my research and teaching obligations were at SDSU while my coursework and PhD evaluations were performed at UCSD. When all is said and done, my degree is functionally identical to a non-joint PhD. My general skills from this program were:- Design and programming of specialized nonlinear analysis tools in C# based on first.

Aug 2011 - May 2017

Assistant Bridge Engineer / Intern

Kleinfelder|Simon Wong Engineering

Greater San Diego Area

Assisted with the independent seismic check of a 43 span prestressed, cast-in-place concrete box girder bridge for the San Diego Midcoast Trolley Expansion. Modeling experience with CSIBridge, VBridge, and LPile.

Jul 2015 - Oct 2015
Team & coworkers

Colleagues at Keller Associates, Inc.

Other employees you can reach at kellerassociates.com. View company contacts for 198 employees →

MN Melissa N. Defries, Mspm, Mscorc Melissa N. Defries, Mspm, Mscorc Colleague at Keller Associates, Inc. Portland, Oregon Metropolitan Area, United States View → DW Daniel Waterman Daniel Waterman Colleague at Keller Associates, Inc. Boise, Idaho, United States, United States View → JM Jake Mcdowell Jake Mcdowell Colleague at Keller Associates, Inc. Meridian, Idaho, United States, United States View → DC Donovan Campbell, Pe Donovan Campbell, Pe Colleague at Keller Associates, Inc. Boise Metropolitan Area, United States View → CW Crystal Warner Crystal Warner Colleague at Keller Associates, Inc. Meridian, Idaho, United States, United States View → DS Dallin Stephens, P.E. Dallin Stephens, P.E. Colleague at Keller Associates, Inc. Pocatello, Idaho, United States, United States View → OR Oksana Roth Oksana Roth Colleague at Keller Associates, Inc. Pocatello, Idaho, United States, United States View → ZI Zach I. Zach I. Colleague at Keller Associates, Inc. Reno, Nevada, United States, United States View → DC Doug Cain Doug Cain Colleague at Keller Associates, Inc. Meridian, Idaho, United States, United States View → KS Kevin Stewart Kevin Stewart Colleague at Keller Associates, Inc. Reno, Nevada, United States, United States View →
3 education records

Tim Johnson, Ph.D. P.E. education

FAQ

Frequently asked questions about Tim Johnson, Ph.D. P.E.

Quick answers generated from the profile data available on this page.

What company does Tim Johnson, Ph.D. P.E. work for?

Tim Johnson, Ph.D. P.E. works for Keller Associates, Inc..

What is Tim Johnson, Ph.D. P.E.'s role at Keller Associates, Inc.?

Tim Johnson, Ph.D. P.E. is listed as Senior Bridge Engineer at Keller Associates, Inc..

What is Tim Johnson, Ph.D. P.E.'s email address?

AeroLeads has found 1 work email signal at @kellerassociates.com for Tim Johnson, Ph.D. P.E. at Keller Associates, Inc..

Where is Tim Johnson, Ph.D. P.E. based?

Tim Johnson, Ph.D. P.E. is based in Post Falls, Idaho, United States while working with Keller Associates, Inc..

What companies has Tim Johnson, Ph.D. P.E. worked for?

Tim Johnson, Ph.D. P.E. has worked for Keller Associates, Inc., Lochner, University Of California San Diego / San Diego State University, and Kleinfelder|Simon Wong Engineering.

Who are Tim Johnson, Ph.D. P.E.'s colleagues at Keller Associates, Inc.?

Tim Johnson, Ph.D. P.E.'s colleagues at Keller Associates, Inc. include Melissa N. Defries, Mspm, Mscorc, Daniel Waterman, Jake Mcdowell, Donovan Campbell, Pe, and Crystal Warner.

How can I contact Tim Johnson, Ph.D. P.E.?

You can use AeroLeads to view verified contact signals for Tim Johnson, Ph.D. P.E. at Keller Associates, Inc., including work email, phone, and LinkedIn data when available.

What schools did Tim Johnson, Ph.D. P.E. attend?

Tim Johnson, Ph.D. P.E. holds Phd, Structural Engineering from University Of California, San Diego.

What skills is Tim Johnson, Ph.D. P.E. known for?

Tim Johnson, Ph.D. P.E. is listed with skills including Structural Engineering, Earthquake Engineering, Sap2000, Nonlinear Analysis, University Teaching, College Teaching, Finite Element Analysis, and Programming.

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