James William Holley ("Claimant") was born February 8, 1943. He was 66 years of age at the time of the hearing, and 58 years of age at the time of the alleged accident in this case. Claimant graduated from high school in Elsberry, Missouri in 1961 and attended college but did not receive a degree. Claimant worked for General Motors for 21 years, mostly in Indiana. In 1989, Claimant returned to Missouri and worked some part-time jobs for a few years. In 1995, Claimant began working for the Missouri Department of Transportation ("Employer") as a laborer or crew worker. This job required Claimant to operate trucks, rollers, graders, backhoes and mowers; it also required Claimant to perform flagging duties, scoop hot asphalt, trim trees, pick up garbage bags and set up traffic barriers.
Claimant alleges he sustained a work-related accident on May 21, 2001 which affected his back. Claimant had a prior history of back problems. Claimant had back problems from 1973 through the date of the alleged accident as a result of a herniated lumbar disc.
Claimant testified that on May 21, 2001, he was mowing an area at Route KK and U.S. Highway 61 in Lincoln County, north of Troy. He testified he was driving a front-wheel assist John Deere Tractor and was pulling a bat-wing mower. Claimant testified that an accident occurred late in his shift that day, when his tractor hit a "ditch check". Claimant testified that a ditch check is an area where hay bales had previously been placed to protect the integrity of the slope. Claimant testified that silt builds up next to the hay bales. After the hay bales disperse, the silt build-up remains and creates a ledge or "drop-off". Claimant testified that driving over a ditch check was like driving over a curb. Claimant testified that, when he drove his tractor over the ditch check, the air seat on his tractor "bottomed out", causing his lower back to "go out".
Claimant testified that, at the end of his shift on May 21, 2001, he told his supervisor, Robin Eveland, "I hit a ditch check". Claimant testified that he was experiencing pain in his low back, "at the belt line" from May 21, 2001 through June 21, 2001, but he continued to work for Employer, despite the back pain. Claimant testified that, by June 21, 2001, his back pain was so severe, he couldn't stand it anymore, and stopped working. June 21, 2001 was the last day Claimant worked for Employer.
Claimant testified clearly and unequivocally that he did not request medical aid from Employer at any time prior to August 2003, when he filled out a "Missouri Department of Transportation Workers' Compensation Field Injury Report."
Claimant saw his family practice physician, Dr. Gary Rucker, on June 25, 2001, complaining of low back pain radiating into hips. Claimant gave Dr. Rucker no history of an injury or accident, work-related or otherwise. Claimant requested sick leave from Employer sometime in late June 2001, but made no mention of a work-related injury or condition. On July 3, 2001, Claimant saw Dr. May Chatilla, and gave a history of low back pain worsening for one year. Claimant never made any mention to Dr. Chatilla of an injury or accident. Dr. Chatilla treated Claimant over the next several months with oral anti-inflammatory medications and a series of injections.
On July 30, 2001, while under Dr. Chatilla's care, Claimant completed an APPLICATION FOR DISABIITY BENEFITS with Employer's retirement system. Claimant indicated on the form that he was requesting "Normal Disability Benefits". Immediately below the selection option for "Normal Disability Benefits" is another selection option for "WorkRelated Disability Benefits". Claimant did not select this option. The last sentence of this option reads: "This disability is a result of an injury incurred during the performance of my duties."
On September 5, 2001, while still under Dr. Chatilla's care, Claimant filed for disability benefits with the Social Security Administration. The first portion of Claimant's hand-written "Remarks" on page 9 of that application reads as follows:
I have worked with this pain for many months. Until at such time the pain became intolerable and mobility became impossible because of pain. Thinking all along this was do (sic) to lower back surgery performed 29 yrs ago. Until I could no longer funtion (sic) at my job for chronic severe pain.
In October 2001, Claimant was hospitalized for a deep venous thrombosis in his left leg.
On March 13, 2002, Claimant was first seen by Dr. Robert Heim, a neurosurgeon. Dr. Heim's note of that date begins: "James Holley is a 59-year-old white male who is seen in office consultation at the request of Dr. May Chatilla. Mr. Holley was in his normal state of health until June 20, 2001 when he had a sudden onset of bilateral hip pain while driving a tractor at work." Dr. Heim performed surgery on March 28, 2002, consisting of a left L4-5 microdiscectomy. On June 24, 2002, additional surgery was performed by Dr. Heim, consisting of a microdiscectomy, neurolysis and foraminotomy at L4-5 on the left. On July 24, 2002, a third surgery was performed.
On August 15, 2003, more than a year after the last surgery was performed, Claimant completed a MISSOURI DEPARTMENT OF TRANSPORTATION WORKERS' COMPENSATION FIELD INJURY REPORT. On that form, Claimant filled in the "DATE OF INJURY/ILLNESS" box with " $2^{\text {nd }}$ Qtr 01 ". In the box titled: "IF ACCIDENT IS REPORTED MORE THAN 24 HOURS AFTER OCCURRENCE HAVE THE EMPLOYEE EXPLAIN REASON FOR DELAY IN REPORTING", Claimant wrote: "Didn't realize disc was herniated. Worried about my health, my wife's health until we both got better."
On September 29, 2003, Claimant filed, pro se, a CLAIM FOR COMPENSATION with the Missouri Division of Worke