Proposition 110

November 13, 2018, 2pm PST
Similar to Missouri voters, who rejected a 10-cents per gallon tax hike placed on the ballot by the state legislature, Colorado voters rejected two competing initiatives to finance transportation improvements placed on the ballot by citizen groups.
Denver Business Journal
September 28, 2018, 7am PDT
Californians will determine whether to repeal recent fuel tax and user fee increases; Missourians to vote on a 10-cent gas tax hike over 4 years; Coloradans whether to hike the sales tax, and the most interesting measure will be decided in Utah.
Governing
September 6, 2018, 2pm PDT
Two transportation bonding initiatives will appear on the ballot on Nov. 6: A $3.5 billion measure would have debt repayments come from the general fund, while a $6 billion initiative would create a revenue stream by hiking sales taxes.
The Denver Post