Nature 35

Clayton L. Sullivan

January 5, 1936 ~ February 29, 2024 (age 88) 88 Years Old


Clayton Lane Sullivan
January 5, 1936, to

On January 5, 1936, Clayton Lane Sullivan was born, after a wild taxi ride from Nampa to Boise, Idaho’s St. Alphonsus Hospital. He was welcomed by proud parents Burnham Bernard (B.B.) and Myrtle Frances Young Sullivan. He was joined in 1938 by his brother, Gary Lawrence Sullivan. Clayton grew up growing gardens, especially strawberries: His strawberry patch profits paid for his college tuition.

He graduated with the Nampa High School Class of 1954 and preceded to Boise Junior College. His summer employment included surveying Banks to Lowman Road and McCall Burdorf Road. He also surveyed Oregon’s Mt Hood Road for the federal highway.

While surveying Banks-Lowman Road, chance allowed him to meet Garden Valley High School Junior Sharon Ann Idohl, who waited for him as he attended a year at Stanford University, in Palo Alto, California. He came back to Idaho with a diamond ring, and they were married on October 13, 1957. Sharon joined him in California, as he completed his Stanford University bachelor’s degree in civil engineering. His academic prowess resulted in a full scholarship for his Stanford University master’s degree. Midway through his master’s program, his daughter Tamara Ann was born. Their second daughter, Terri Lynn, followed in 1962.

Clayton graduated Cum Laude, and they rushed back to Idaho, where he began a 41-year career in several Idaho Engineering Sections. He was an engineer on Lewiston Hill Road, White Bird Hill, and Horseshoe Bend Hill. His career was filled with promotions to roles of increasing size and scope, that spanned from Traffic Engineer, Site Construction Engineer, State Maintenance Engineer Operation Engineer to Chief Engineer of Operations. His national committee membership and leadership roles are too many to list, but he remained active in American and Western Highway and Transportation Engineers and National Highway Transport (rules of trucking). It was Western Association of State Highway and Transportation Officials (WASHTO) Water Maintenance that earned Clayton an 18-day 1994 Japan and European trip. He was also active in Western States Maintenance and Highway Research Programs.

His loves and hobbies outside of the office included fishing and camping, and some of his favorite places included Clearwater River, Cascade Lake, Lucky Peak, Anderson Ranch, Redfish Lake, and the South Fork of the Payette River.

He is survived by his wife of 66 years, Sharon Idohl Sullivan of Garden City; his daughter Terri Lynn Sullivan and her son Dakota, of Boise; his brother Gary L Sullivan of Boise; Granddaughter Angela Hancock and her husband Don of Caldwell and their six children, Clayton’s great grandchildren, Ronny, Kenny, Maria, CeCi, Valerie and Sebastian; Granddaughter Arynn Jeanette and her husband Devron of Seattle, Wash.; Grandson Austyn of Salt City, Utah; Son in Law Corey Watson and Connie Newgard of Boise.; Nieces Trudy Sullivan Stoudamire (Charles and their children, Maalik and Maya) of Dallas, Texas; Stacey Sullivan (Steve Rogers) of Boise, and Lisa Sullivan (son LJ), of Boise.

Clayton was preceded in death by his parents, B. B. Sullivan and Myrtle Frances Young Sullivan of Nampa, Idaho, and his daughter Tamara Sullivan Watson of Star; and Grandparents Jason and Nannie B. Young; and William, and Dove Sullivan.

His family extends their deepest gratitude to the kind, competent and caring administration and staff at Cornerstone Care Center and Keystone Hospice, especially Ariana (Ari).

In lieu of flowers, the family recommends donations to the Idaho Human Society and Idaho Society of Professional Engineers Foundation.

Clayton’s services will be managed by Cloverdale Funeral Home. His burial will be at Dry Creek Cemetery.

Service info is pending, please check back later.



Dry Creek Cemetery

Boise, ID 83713


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