Civil Engineer Salary in Washington (2026)
The average Civil Engineer in Washington earns around $112,000/year. After taxes, your estimated take-home is $87,622/year ($7,302/month).✓ No state income tax
Take-Home Pay Breakdown
| Category | Amount |
|---|---|
Annual Take-Home Pay | $87,622 |
Monthly Take-Home Pay | $7,302 |
Biweekly Take-Home Pay | $3,370 |
Hourly Take-Home Pay based on 2,080 hrs/year | $42/hr |
Federal Tax | $15,810 |
State Tax | $0 |
FICA Taxes | $8,568 |
Effective Tax Rate total taxes ÷ gross salary | 21.77% |
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Civil Engineer Salary Ranges in Washington
Not all Civil Engineers earn the same — not even close
WA civil engineering splits across five coherent tracks. Transportation (WSDOT highway + ST3 transit + Port of Seattle / Port of Tacoma) carries the largest dollar pipeline. Structural and seismic (Cascadia Subduction Zone retrofit + new construction seismic compliance) is the WA-distinctive specialty. Site / civil for data center build (Quincy / Moses Lake / Boardman OR) is the underrated growth area. Water / wastewater (Seattle Public Utilities, Cascade Water Alliance) plus environmental (Hanford cleanup, DOE / ENW) round out the market.
Chief Engineer / VP Engineering
$325,000–$585,000+
AECOM / HDR / WSP / Jacobs / Stantec WA regional leadership · Sound Transit + WSDOT major-program directors
Principal Engineer / Project Director
$185,000–$305,000
$50M-$500M+ project ownership · ST3 corridor leads · WSDOT mega-project directors · senior PE plus PMP
Senior Engineer / Project Manager
$135,000–$215,000
10-15 yrs · PE plus 5+ yrs post-license · domain depth (transportation / structural / geotech / water)
Civil Engineer PE
$95,000–$155,000
WA PE license · 4-7 yrs · 4 yrs experience + NCEES PE exam · prevailing wage on public projects
Engineer-in-Training (EIT)
$72,000–$98,000
Entry · FE exam passed · NON-EXEMPT typical for first 2-3 years until PE supervision shift · OBBBA-eligible
Structural / Seismic Specialist
$135,000–$245,000
KPFF / Magnusson Klemencic / Coughlin Porter Lundeen · Cascadia retrofit + new SE plus PE · 25-40% premium
Geotechnical Engineer (Liquefaction Specialty)
$115,000–$215,000
Shannon & Wilson · GeoEngineers · Hart Crowser · Tacoma / South Seattle liquefaction-soil specialty
Construction Inspector / Field Engineer
$78,000–$135,000
WSDOT-certified + state prevailing wage on public works · NON-EXEMPT · OBBBA-eligible · field-OT typical
Data Center Civil PE (Quincy / Moses Lake)
$115,000–$215,000 + per-diem
Microsoft Quincy · Yahoo / Verizon Quincy · Vantage · NTT · sustained Eastern WA hyperscale build through 2030+
Environmental / Hanford Cleanup Engineer
$115,000–$205,000
DOE Hanford · Bechtel National · ENW · CH2M HILL Plateau Remediation · ~$2B/yr federal cleanup budget
Worth knowing: Cascadia Subduction Zone seismic retrofit is the WA civil engineering specialty no other US market has at this depth. The CSZ runs ~700 miles offshore from Vancouver Island to Cape Mendocino, last ruptured Jan 26, 1700 (magnitude ~9.0), with USGS-estimated ~37% probability of magnitude 8+ rupture in the next 50 years. ASCE 7-22 + 2024 Washington State Building Code require seismic design across all new construction plus retrofit standards for existing public buildings, hospitals, schools, and critical infrastructure. KPFF Consulting Engineers (Seattle HQ, ~1,200 employees), Magnusson Klemencic Associates (~250 employees), Coughlin Porter Lundeen (~300 employees), DCI Engineers, Cary Kopczynski each maintain dedicated CSZ-retrofit specialty groups. Senior structural engineers with SE plus PE credentials plus 8+ years of seismic specialty clear $185-285K cash. Liquefaction-soils geotechnical work in Tacoma Tideflats + Sodo + Harbor Island adds parallel specialty depth.
Civil engineers, OBBBA OT, WA labor law, and the Pacific Northwest construction cycle
$12,500
OBBBA OT deduction cap (single, 2025-2028) — applies to EIT + inspector + field engineer roles
0%
WA state income tax — OBBBA flows through cleanly; no state add-back
$54B
Sound Transit ST3 program through 2041 — largest western US transit civil-engineering pipeline
40/wk
WA OT trigger — federal FLSA 40/week (no state daily-OT rule like CA or CO)
Civil engineering in WA splits -exempt and non-exempt by role tier. Licensed PEs running design + project management + senior consultancy roles are typically FLSA exempt under the Learned Professional exemption — exempt classification applies by definition once licensed plus performing primarily intellectual work requiring discretion. Salaried with bonus.
Engineers-in-Training (EITs) in their first 2-4 years post-graduation, plus construction inspectors, plus field engineers on public works projects are typically NON-EXEMPT and -eligible. WSDOT-certified inspectors plus state prevailing wage on public works (RCW 39.12) drive substantial OT cash. The OBBBA No-Tax-on-Overtime federal deduction (2025-2028) applies to qualifying -required OT premium — cap $12,500 single / $25,000 .
For an EIT at $35/hour running 50-hour weeks × 48 weeks during the construction-busy season, OT hours total ~480/year at $52.50/hour. The premium portion (the 'half' of time-and-a-half) is $8,400/year — under the $12,500 single cap. At the 22% federal bracket plus WA 0% income tax, that's roughly $1,850 federal savings through 2028. Construction inspector at $42/hour with comparable hours saves $2,200+ via .
WA does not have a daily OT trigger — federal 40/week governs unless project-specific prevailing wage rules adjust. RCW 49.46.130 plus the state Minimum Wage Act conform to federal OT mechanics. Boeing IAM 751 production engineers + SPEEA professional engineering union members have negotiated OT structures via collective bargaining — typically 1.5× after 40 plus 2× for Sunday / holiday shifts.
phaseout starts at $150K single / $300K at $100 per $1,000, fully phased out at $275K / $550K. Most EITs and inspectors fall well below the threshold and capture the full deduction. Senior PEs and project managers above the threshold lose the deduction entirely. WA conforms to federal AGI for state tax (well, 0% state tax means there's nothing to conform), so the OBBBA deduction flows through cleanly.
Sound Transit ST3 is the WA civil engineering project of the decade — the $54B regional transit expansion through 2041 (voter-approved Nov 2016). Light rail extensions to Ballard, West Seattle, Tacoma, Federal Way, Issaquah, Everett, plus BRT, plus station infrastructure. AECOM, HDR, WSP, Jacobs, Parametrix, Stantec, Kiewit, Skanska, Mortenson all maintain dedicated ST3 design + construction teams. Civil engineers running ST3 corridor design clear $145-245K cash; senior project managers $245-385K.
Washington as a civil engineer — ST3 transit, Cascadia seismic retrofit, Eastern WA data center build, Hanford cleanup
Sound Transit ST3 is the WA civil-engineering pipeline of the decade — 62 miles of new light rail through 2041 plus Stride BRT plus station infrastructure across King / Pierce / Snohomish. Each ST3 corridor segment (Lynnwood, Federal Way, East Link, West Seattle / Ballard) supports 40-120 civil engineers across design, geotechnical, structural, and construction management. The Mortenson-Sellen joint venture, Skanska-Hoffman, Kiewit, Stacy and Witbeck plus the WSP / Jacobs / HDR / AECOM / Parametrix design bench provide sustained civil PE careers through the late 2030s.
Cascadia Subduction Zone seismic obligation is the WA civil engineering specialty no other US market has at this depth. New construction must meet ASCE 7-22 + 2024 Washington State Building Code seismic provisions. Existing critical infrastructure (hospitals, schools, fire stations) carries retrofit obligations. SR99 Alaskan Way Viaduct (replaced 2019 by SR-99 tunnel) plus Highway 520 floating bridge retrofit (completed 2016) are the prior decade's major seismic projects. The Cascade Bicycle Club's Cascadia Earthquake Preparedness program plus state DNR seismic-hazard mapping drive sustained retrofit demand.
Eastern WA data center civil engineering is the underrated WA growth corridor. Microsoft Quincy (~3M sq ft campus), Microsoft Moses Lake expansion, plus Yahoo / Verizon Quincy plus Vantage + NTT + Dell Quincy. Mortenson Rocky Mountain / DPR / JE Dunn data-center divisions all maintain Quincy presence. Site civil engineering for hyperscale data center build is its own specialty — geotechnical for slab-on-grade plus stormwater + utilities + access roads + substation pad design. Per-diem stipends $125-275/day for Seattle-based civils commuting to Quincy.
Hanford nuclear-site civil cleanup is the WA federal-program specialty no other state offers at this scale. DOE Hanford ~$2B/yr cleanup budget. Bechtel National (Hanford WTP $17B), ENW (BSO + plateau remediation), CH2M HILL, Mission Support Alliance. Tri-Cities (Richland / Kennewick / Pasco) houses ~12K Hanford workforce; civil engineers earn $115-205K plus federal-locality, often with clearance premium.
How WA taxes work for civil engineers — 0% income, OBBBA OT deduction flow-through, federal AGI conformity
WA charges 0% state income tax — substantial advantage at every civil-engineering comp tier. At Senior PE $145K, WA saves ~$10,400 versus CA's 8.0% blended and $10,800 versus NY's 7.5%. At Principal Engineer $225K, $16,500+ versus CA. EITs and inspectors at $85-105K save $4,500-6,500/yr.
No-Tax-on-Overtime (2025-2028) flows through cleanly at WA's 0% state tax — the deduction applies only at federal level since WA has no state income tax to offset against. Non-exempt civils (EITs, inspectors, field engineers) capture the full $12,500 single / $25,000 cap if their qualifying OT premium meets the threshold.
WA Cares Fund (RCW 50B.04) charges 0.58% on wage income up to the federal SS wage base ($184,500 in 2026, capped at $1,070/yr). The program funds long-term-care benefits — modest relative to comp at PE and above levels.
WA Capital Gains Tax (SHB 5096 of 2021, upheld in Quinn v. State 2023) charges 7% on above $270K per filer per year — applies to senior consultancy partners with substantial equity exits but typically irrelevant to mid-career civil engineers. WA estate tax $2.193M exemption per individual is the long-term consideration for senior firm partners accumulating ownership equity over a career.
- →Capture employer match before anything else. AECOM (50% match up to 8%), HDR (4% match, profit-sharing typical), WSP (50% on first 8%), Jacobs (varies by entity), Magnusson Klemencic (employee-owned — buy-in path). Boeing engineers (75% match up to 8% = 6% effective) and WSDOT (DRS pension + DC plan combo) follow different structures.
- →Max your ($24,500 in 2026). At WA 0% plus federal 22-32% brackets, every $1,000 deferred saves $220-$320. EITs at the 12-22% bracket save $120-$220 — still worth maxing for compound growth.
- → at large-employer plans. §415(c) total cap $72,000 (2026). AECOM, HDR, WSP, Jacobs all offer after-tax contributions with in-plan Roth conversion. After $24,500 employee plus match, $30-40K of room remains. At WA 0% plus federal 32-35%, MBR converts $35K of after-tax space into perpetual Roth tax-free growth.
- →PE license is the single highest-ROI move in civil engineering. WA PE comp typically runs 25-40% above EIT at equivalent experience level. PE requires 4 years of qualifying experience under PE supervision plus passing the NCEES PE exam (8 hours, ~70% national pass rate). Most WA EITs sit for the PE exam between years 4-5.
- →SE (Structural Engineer) license adds another premium on top of PE for structural specialty. SE requires PE plus 3+ years of structural specialty experience plus the 16-hour NCEES SE exam (~45% pass rate). KPFF, Magnusson Klemencic, Coughlin Porter Lundeen senior SE engineers run $185-285K.
- →Employee ownership path at WA-anchored employee-owned firms (Magnusson Klemencic, GeoEngineers, Parametrix, Otak). ESOP structures plus phantom-stock plans plus full-buy-in partnership tracks at senior level produce 6-7 figure liquidity events over 15-25 year careers — WA 0% state plus 7% CGT above $270K keeps the math favorable versus CA or NY peers.
Three WA metros for civil engineers — Seattle ST3 + structural, Eastern WA data center + Hanford, Tacoma + Olympic Peninsula
WA civil-engineering splits by region + specialty. Seattle is ST3 + WSDOT + structural / seismic + Port of Seattle marine. The Eastside (Bellevue / Redmond) is Microsoft Redmond campus expansion plus T-Mobile / Costco facilities. Eastern WA (Quincy / Moses Lake / Tri-Cities) is data center build plus Hanford federal cleanup.
Seattle (ST3 + WSDOT + Structural / Seismic + Port)
EIT $72-98K · Civil PE $95-155K · Senior PE $135-215K · Principal $185-305K · Chief Engineer $325-585K+WA's civil-engineering core. Sound Transit ST3 ($54B program through 2041), WSDOT regional projects, KPFF + Magnusson Klemencic + Coughlin Porter Lundeen structural / seismic bench, Port of Seattle marine + Port of Tacoma plus the major engineering consultancies (AECOM Seattle, HDR Bellevue, WSP, Jacobs, Parametrix Bellevue, Stantec). Boeing Renton + Defense Tukwila facilities engineering. UW College of Engineering feeds the talent pipeline (~600 civil + structural BSCE graduates/year).
Capitol Hill / Eastlake / SLU ($850K-$1.8M townhomes for mid-career PE), Queen Anne / Magnolia ($1.4-2.8M Senior PE), Madison Park ($1.8-4.5M+ Principal+ residential). King County property tax 0.93% effective.
Bellevue / Redmond (Microsoft / Eastside Facilities + Data Center Design)
EIT $72-98K · Civil PE $95-155K · Senior PE $135-215K · Principal $185-305KWA's Eastside civil-engineering corridor. Microsoft Redmond East Campus expansion (~3M sq ft through 2028), T-Mobile Bellevue Towers, Costco Issaquah HQ expansion. HDR Bellevue, Parametrix Bellevue, Coughlin Porter Lundeen Bellevue, plus the data-center design specialty (DPR, JE Dunn, Mortenson, Holder Construction) all maintain Eastside benches. Generally smaller-scale than Seattle but more directly tied to corporate capital programs.
Bellevue downtown townhomes ($1.4-3.0M Senior PE), Mercer Island ($1.8-5M+ Principal residential), Kirkland / Sammamish ($1.0-1.8M family-stage), Issaquah ($750K-$1.4M Costco / REI proximity).
Eastern WA (Quincy / Moses Lake Data Center + Tri-Cities Hanford)
Civil PE $95-155K + per-diem · Senior PE $135-225K + per-diem · Hanford engineer $115-205K + federal localityWA's data-center plus federal-cleanup civil-engineering frontier. Quincy WA hosts Microsoft + Yahoo + Vantage + NTT + Dell — largest hyperscale data center construction concentration in the western US. Tri-Cities (Richland / Kennewick / Pasco) anchors Hanford nuclear cleanup — Bechtel National WTP, ENW, CH2M HILL Plateau Remediation, Mission Support Alliance. ~$2B/yr DOE cleanup budget. Federal-pension plus clearance-premium plus federal-locality stack favorably.
Tri-Cities (Richland / Kennewick / Pasco) family residential $475-825K SF. Quincy / Moses Lake commute-based with per-diem stipends. Coeur d'Alene Idaho secondary residence is common (15 min Spokane / 3 hr Tri-Cities).
The WA civil engineer career arc — EIT through Chief Engineer or principal-firm partner
WA civil-engineering careers typically start with UW College of Engineering (~600 BSCE/year), WSU Pullman (~250 BSCE/year), Seattle U Engineering (~120 BSCE/year), or out-of-state programs (Berkeley, Stanford, Oregon State, Cal Poly SLO). EIT entry $72-98K cash at AECOM / HDR / WSP / Jacobs / Parametrix / KPFF / Magnusson Klemencic / Coughlin Porter Lundeen. FE exam typically passed senior year of college; first PE-supervised job sets the path.
PE-track (years 1-5): EIT $72-98K rising to $95-115K at PE eligibility (year 4). NCEES PE exam at year 4-5 (8-hour discipline-specific exam). Civil PE post-license $115-145K cash. SE-track (structural specialty) adds 3+ years post-PE then the 16-hour NCEES SE exam — SE-licensed engineers at KPFF / Magnusson Klemencic / Coughlin Porter Lundeen earn 25-40% premium over generalist PE.
Senior PE / Project Manager (years 7-15): comp $135-225K cash. PMP certification at this stage drives consulting-firm advancement. Discipline depth (transportation / structural / geotechnical / water / environmental) plus project-manager track adds responsibility. AECOM / HDR / WSP / Jacobs senior engineers running $20M-$100M projects clear $185-245K. Boeing Defense engineering at this stage carries clearance plus stable pension legacy.
Principal / Chief Engineer (years 15+): Principal at AECOM / HDR / WSP / Jacobs $245-385K cash. Chief Engineer / VP Engineering tier $325-585K. Senior partner at employee-owned firms (KPFF, Magnusson Klemencic, Parametrix, GeoEngineers) routinely $385-585K + equity buy-in / ownership distributions. WA 0% income tax plus 7% CGT above $270K make senior consultancy careers genuinely favorable — equity-firm partners face WA CGT at retirement exit, but income tax pickup is zero throughout.
Where WA civil engineers live — Capitol Hill, Bellevue, Tacoma, plus Tri-Cities for Hanford
WA civil engineers cluster by region + project. Seattle-based at AECOM / HDR / WSP gravitate to Capitol Hill (EIT / mid-career PE), Queen Anne (Senior PE), Madison Park (Principal). Eastside-based at HDR Bellevue / Parametrix Bellevue head to Bellevue downtown or Sammamish. Tacoma + South Sound is its own corridor for ST3 South Sound segments + Port of Tacoma marine. Tri-Cities anchors Hanford.
Capitol Hill / SLU / Eastlake (Seattle urban)
$850K-$1.8M townhomes · EIT + mid-career PE standard · light rail · walk to AECOM / WSP Seattle
Queen Anne / Ballard (Seattle established)
$1.4-2.8M SF · Senior PE family-stage · 15-25 min downtown · top schools
Madison Park / Madrona (Seattle Principal residential)
$1.8-4.5M+ SF · Principal + Chief Engineer · top-tier residential
Bellevue Downtown / Sammamish (Eastside)
$1.0-3.0M SF/townhomes · HDR Bellevue + Parametrix Bellevue + Microsoft facilities corridor
Kirkland / Issaquah (Eastside family)
$1.0-1.8M SF · family-stage Senior PE · top Lake Washington / Issaquah schools
Tacoma North End / Old Town (South Sound corridor)
$650K-$1.2M SF · ST3 South Sound + Port of Tacoma marine + Joint Base Lewis-McChord civil work
Federal Way / Kent (ST3 South corridor proximity)
$550K-$850K SF · ST3 Federal Way station-area projects · I-5 corridor commute compatible
Tri-Cities (Richland / Kennewick / Pasco) — Hanford
$475-825K SF · Hanford cleanup engineers · Bechtel National / ENW / federal-locality + clearance premium
Sound Transit Link light rail expands under ST3 through 2041 — by 2026 line runs to Lynnwood north + Federal Way south. Civil engineers on ST3 design + construction work routinely use the system as professional context. SR-520 + I-90 floating bridges shape Eastside commute geography. Tacoma corridor adds South Sound connectivity. Tri-Cities is car-dependent but compact.
Is this the right move?
WA for civil engineers — who it actually works for
Working in your favor
- +WA 0% state income tax saves $4,500-$25,000/yr depending on tier — substantial advantage over CA, OR, and NY at every comp level
- +Sound Transit ST3 ($54B through 2041) plus WSDOT highway program plus hyperscale data center build in Eastern WA provide multi-decade civil PE pipeline
- +Cascadia Subduction Zone seismic retrofit specialty (KPFF + Magnusson Klemencic + Coughlin Porter Lundeen) is WA-distinctive — no other US market matches this depth
- +Employee-owned consultancy structures (KPFF, Magnusson Klemencic, Parametrix, GeoEngineers) plus full buy-in partnership tracks at senior level produce 6-7 figure liquidity events over careers
- +OBBBA No-Tax-on-Overtime deduction flows cleanly at federal level for EITs + construction inspectors + field engineers under the $150K MAGI threshold
Worth knowing before you sign
- −WA Capital Gains Tax 7% above $270K LTCG applies at consultancy partner exit timing — senior partners cashing out equity face material WA tax versus zero in TX or FL
- −Seattle BigLaw-equivalent Chief Engineer comp ($585K top-end) trails NYC and SF Bay Area civil leadership — career-cap matters for top-tier specialists weighing relocation
- −WA estate tax $2.193M exemption + 10-20% top rate is among the more aggressive — long-tenure firm partners accumulating $5-10M+ ownership equity face $500K-1M+ versus zero in no-state-tax peers
- −Construction-cycle volatility — ST3 deliveries paused in 2024 over budget overruns; revisions extended timelines; cyclical demand for senior civil PE design
- −Seattle gray-overcast winter — ~152 cloudy days/year; field work in Nov-Mar adds rain-gear logistics
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