FEDERAL & MILITARY STRUCTURAL ENGINEERING
Structural Engineering for
Federal & Military Facilities
Nationwide PE & SE licensure. 30+ federal and military installations served across multiple branches. PE-stamped work delivered on federal schedules — from rapid structural assessments to full facility design support.
Proven at Eglin AFB, Edwards AFB, Vandenberg AFB, Camp Lejeune, Fort Polk, Kadena AFB, and more.

50
Licensed in all
50 States & Territories
5
SE licenses in CA, HI, ID, IL, and OR for seismic-critical federal work
30,000+
Structural Projects Completed since 2003
30+
Military Installations
Served
WHAT WE DO
Federal Structural Engineering Services
TGE provides PE-stamped structural engineering at DoD installations and federal facilities —
from rapid-response damage assessments to repair engineering and new facility support.
STRUCTURAL ASSESSMENTS AT MILITARY FACILITIES
On-site structural evaluations at DoD installations following damage events — crane collapse, vehicle impact, storm damage, fire — with PE-stamped findings and clear repair recommendations.
REPAIR & RENOVATION ENGINEERING
EOR services for federal facility repairs and modifications — PE-stamped drawings for contractor use, construction administration support, and documentation that meets federal project requirements.
DOD FACILITY STRUCTURAL DESIGN
Structural engineering for new and renovated DoD facilities, with familiarity with Unified Facilities Criteria (UFC) standards governing military construction.
NAVFAC PROJECT SUPPORT
Structural engineering for Navy and Marine Corps projects through NAVFAC, including facility assessments and repair engineering at Naval installations.
MULTI-BRANCH EXPERIENCE
Projects spanning U.S. Air Force, Navy/NAVFAC, Army, and Army National Guard — across 19 US states and internationally at Kadena AFB, Okinawa, Japan.
NATIONWIDE PE COVERAGE
PE licenses covering all 50 states, DC, and territories. No out-of-state licensing delays — TGE can mobilize PE-stamped support to any federal installation in the country.
WHY TGE
Built for Federal Work
Federal projects demand licensure, experience, and reliability across state lines. TGE delivers all three.
50 STATE NATIONWIDE LICENSURE
All 50 US states, DC, and territories covered. No delays waiting on out-of-state licensing for any federal installation.
30+ MILITARY INSTALLATIONS
Structural work across Air Force, Navy, Army, and National Guard facilities in 19 states and internationally.
5 SE LICENSES
Structural Engineer licenses in CA, HI, ID, IL, and OR for seismic-critical federal and DoD work.
30,000+ PROJECTS COMPLETED
Operating since 2003 across manufacturing, commercial, modular, public, facilities, and federal sectors.
REGISTERED IN SAM.GOV
Active SAM registration (UEI: P2M3FCNV4BC5, CAGE: 96W55) — ready for federal contracting and procurement at any DoD or civilian agency.
CERTIFICATIONS & AFFILIATIONS
USACE CQM-C certified (Will Workman, P.E.). BUILDER Train the Trainer certified. Society of American Military Engineers member — Gem State Post.
WHERE WE'VE WORKED
Military Installations Served
TGE has performed PE-stamped structural engineering across four branches of the US military — spanning 19 states and internationally. TGE has supported federal projects in Alaska, California, Colorado, Florida, Hawaii, Idaho, Indiana, Louisiana, Maryland, Massachusetts, Michigan, Montana, Nebraska, New Mexico, North Carolina, Oregon, Texas, Washington, and Virginia — plus internationally at Kadena AFB and Misawa AFB, Japan..
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AIR FORCE / ANG
-
Eglin AFB FL
Structural evaluation, crane impact -
Tyndall AFB FL
Multiple projects -
Edwards AFB CA
Multiple projects -
Vandenberg AFB CA
-
Beale AFB CA
-
Kirtland AFB NM
-
Cannon AFB NM
Multiple projects -
Schriever AFB CO
-
Hanscom AFB MA
-
Offutt AFB NE
Shooting range -
Mountain Home AFB ID
Commissary, structural investigation, facility evaluation -
Gowen Field ANG ID
C-130 Hangar, Dorms/Education Building -
Selfridge ANGB MI
Facility condition assessment -
Kadena AFB Okinawa, Japan
-
Misawa AFB Honshu, Japan
-
NAVY / MARINES
-
MCB Camp Lejeune New River NC
Verona Loop Marine Mart -
Camp Devil Dog (MCB Pendleton) CA
Mini Mart, NAVFAC -
Naval Base Ventura County Point Mugu, CA
Seismic retrofit, Building PM-57 -
MCB Hawaii Kaneohe Bay HI
-
USACE
-
USACE Facility Tacoma, WA
-
Lookout Point Dam OR
-
Detroit Dam OR
-
VA
-
Perry Point VA Medical Center MD
-
Lake Baldwin VA Clinic FL
-
Marion VA Medical Center IN
-
ARMY
-
Fort Polk LA
Facility assessment, barracks QA, DFAC ground-up QA, training city QA -
Army Reserve Center Denton, TX Ground-up build QA
-
Fort Worth TX
BUILDER Train the Trainer, Military Base Energy Calculator -
Fort Hood TX
Energy Calculator Development, USACE/DoD -
Camp Grayling MI
Army National Guard -
Fort Wainwright AK
-
GSA/ Federal Civilian
-
FBI Academy Quantico VA
Shooting range -
Raymond Land Port of Entry MT
-
Bozeman Federal Building MT
-
Roybal Federal Building CA
CURRENT END USERS









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Frequently asked questions
THE TAMARACK GROVE DIFFERENCE
OVERALL DEPTH OF EXPERTISE AND RESOURCES
PROTOTYPE DEVELOPMENT/IMPROVEMENTS
INNOVATIVE, RIGHT-SIZE SOLUTIONS
RESPONSIVENESS
FASTER THAN AVERAGE TURN-AROUND TIMES
LICENSURE THROUGHOUT NORTH AMERICA
PRINCIPALS
Key Team Members
KEY FEDERAL TEAM

BRIAN SIELAFF, M.S.C.E., S.E., P.E., P. ENG. CEO

DOUG HARDIN, P.E. President

WILL WORKMAN, P.E. Engineering Manager

CALEB RAPP, P.E. Project Engineer III

DUNCAN ROBERTSON, CPSM Director of BD

