Road Engineering Analysis: The Terrible Two
By Chuck Bramwell

California Triple Crown Guy


Elevation Profile  | 2003 Temperature Graph  | % Completion Analysis | 
Start to RS1 Analysis  | RS1 to RS2 Analysis  | RS2 to RS3 Analysis | 
RS3 to RS4 Analysis  | RS4 to RS5 Analysis  | RS5 to RS6 Analysis | 
RS6 to Finish ]

Elevation Profile for The Terrible Two


These graphs were built using my Ciclosport HAC4 Computer based on Terrible Two of June 28, 2003.

The Terrible Two was started in 1976 by the Santa Rosa Cycling Club as they realized that a 200 mile course in and around Sonoma County would include some very challenging hills as well as some spectacular scenery. Although the route has varied in small ways over the years, its defining features have always been its four big climbs (and the steep, twisting descents that follow): Trinity Grade, the Geysers, Skaggs Springs, and Fort Ross. Numerous smaller but pesky hills add to the overall challenge. Trinity, the Geysers, and Fort Ross are all double-summit climbs, while Skaggs Springs is a long series of climbs and descents, including a tough new climb introduced with the 1995 route change.

In 2003, we had brutally hot weather resulting in a Truly Terrible Thermonuclear Meltdown with Horrific Temperatures of 120 degrees recorded on my handlebar as I was walking my bike up the climbs in the soaring sun of Skaggs Springs.


Temperature Graph by Distance for the 2003 Terrible Two

Temperature Graph by Time for the 2003 Terrible Two

Percent Completion Analysis

%
Feet of % % Miles - 
Mile on Climbing Miles Climbing Climbing
HAC4 HAC4 Completed Completed Completed
Start 0.0 0 0.0% 0.0% 0.0%
Start of Trinity Grade 27.6 2210 14.1% 14.3% -0.2%
Calistoga Rest Stop 50.0 2890 25.5% 18.7% 6.8%
Start of Geysers 70.1 3410 35.8% 22.1% 13.7%
Geysers Rest Stop 79.4 6220 40.5% 40.3% 0.2%
Lunch 106.4 6920 54.3% 44.9% 9.5%
Camp Gualala Rest Stop 133.6 9350 68.2% 60.6% 7.6%
Top of "The Wall" 138.2 11300 70.5% 73.2% -2.7%
Fort Ross Rest Stop 157.0 12450 80.1% 80.7% -0.6%
Start of Fort Ross #2 162.7 13850 83.1% 89.8% -6.7%
Monte Rio Rest Stop 178.6 14470 91.2% 93.8% -2.6%
Finish 195.9 15427 100.0% 100.0% 0.0%


Elevation Profile  | 2003 Temperature Graph  | % Completion Analysis | 
Start to RS1 Analysis  | RS1 to RS2 Analysis  | RS2 to RS3 Analysis | 
RS3 to RS4 Analysis  | RS4 to RS5 Analysis  | RS5 to RS6 Analysis | 
RS6 to Finish ]