Robert Willett

Robert Willett, PE – Professional Engineer

Robert is a civil engineer specializing in traffic and transportation engineering, with over 24 years of experience and has been with Woodson since 2014. He has prepared roadway/drainage, traffic signal, roadway signing/parking, roadway lighting, traffic signal interconnect and temporary traffic control plans working as a consultant for numerous public agencies in Arizona. He is experienced with both the MicroStation and AutoCAD design platforms. Other Design Software he is familiar with includes Visual, Lumen Micro, COGO, Calapro, LitePro, AutoTurn, Synchro and SimTraffic. He also has over 4 years of survey experience in the field and office.


  • Glendale Community College

Recent Project Experience
Trails End, Flagstaff – Robert provided design and preparation of construction plans for this 30-unit single-family residential subdivision on 5.51 acres. Woodson also provided surveying, planning and engineering services in accordance with City of Flagstaff requirements. Robert helped take the project through Conceptual Plat Approval, Preliminary Plat Approval, and Final Plat Approval including preparation of all submittals for this development to pass through the City subdivision process.  Our work also included preparation of Resource Plans as well as LID Development Design services.

4th Street Pedestrian Crossings, City of Flagstaff – Robert designed the new and updated pedestrian crossings for this busy arterial street in East Flagstaff. The City had installed temporary crossings that required upgrading to meet standards. The design had to conform to existing conditions but also required planning for future improvements to meet other project demands.

Service Station, Tusayan, AZ – Robert is the Senior Designer and is working with the client to develop a parcel of land along SR 64 in Tusayan. Our preliminary work includes ADOT coordination and meetings, and preparation of a conceptual plan for submittal to ADOT showing access options and vehicular circulation.

Route 66, Flagstaff – As part of a development agreement the developer was required to make improvements to Route 66. Robert prepared the Construction Plans and Documents submitted to both the City of Flagstaff and ADOT for review and approval.  The design included widening; lane additions; curb, gutter and sidewalk; LID stormwater basins; drainage report; traffic signal design; and foundations/conduits for future signals.

Dollar General Store, Coconino County – Robert prepared the civil construction plans for grading, drainage and utilities which were submitted to Coconino County Community Development and Kachina Village Design Review.  Included in the accepted Grading Plan were site grades and elevations, drainage provisions and stormwater management.  The accepted Drainage Plan included subsurface detention provisions and SWPPP provisions.  The Utility Plan showed the sites potable water system including connection to offsite mains.  Also included was the sanitary sewer service connections and site appurtenances including manholes and clean outs.  We acquired Dry Utility contact letters and conflict signoff acknowledgements.

Transportation Access Study, AZ DEMA – Robert assisted with the preparation of a transportation access study for a proposed industrial complex. The study included a Design Concept Report outlining the horizontal and vertical alignments of a four-lane access road from I-40, and across the BNSF railroad right-of-way. The existing railroad underpass was evaluated to determine future use including widening. The final product included preliminary plan sheets, cost estimates, a review of right-of-way issues, and utility impacts to the chosen alignments.