The Caldecott Tunnel is an east-west highway tunnel through the Berkeley Hills between Oakland and Orinda, California.
 Its four bores carry California State Route 24.
 Named after Thomas E. Caldecott, former mayor of Berkeley, it opened in 1937 as a two-bore tunnel.
 The third bore opened in 1964 and the fourth bore in 2013.
 Currently, the two oldest bores carry eastbound traffic and the two newest bores carry westbound traffic.
The Eisenhower Tunnel, officially the Eisenhower–Edwin C. Johnson Memorial Tunnel, is a dual-bore, four-lane vehicular tunnel approximately 60 mi west of Denver, Colorado, United States.
 The tunnel carries Interstate 70 under the Continental Divide in the Rocky Mountains.
 With a maximum elevation of 11158 ft AMSL, it is one of the highest vehicular tunnels in the world.
 The tunnel is the longest mountain tunnel and highest point on the Interstate Highway System.
 Completed in 1979, it was one of the last major pieces of the Interstate Highway system to be completed.
 The westbound bore is named after Dwight D. Eisenhower, the U.S. President for whom the Interstate system is also named.
 The eastbound bore is named for Edwin C. Johnson, a governor and U.S. Senator who lobbied for an Interstate Highway to be built across Colorado.
Edwin Carl Johnson (January 1, 1884 – May 30, 1970) was a Democrat who served as both governor and U.S. senator from the U.S. state of Colorado.
The Hanging Lake Tunnel is a dual bore highway tunnel carrying Interstate 70 (I-70) and U.S. Highway 6 (US 6) through the southern wall of Glenwood Canyon, just east of exit 125 in Garfield County, Colorado, United States.
 The tunnel is named for Hanging Lake, which resides in a side canyon to Glenwood Canyon and is accessible via a trail head at a rest area near the western portal of the tunnel.
Bhaskar Thapa (Nepali: भाष्कर थापा ) was a Nepalese-American tunnel engineer known as the lead designer of Caldecott Tunnel Fourth Bore.
 He is considered an expert of the New Austrian tunnelling method (NATM).
 The Caldecott Tunnel passes through California State Route 24 and connects Alameda County and Contra Costa County, California.
 The project had an estimated cost of $391 million He had presented his tunnel technology programme at Ministry of Physical Infrastructure and Transport (Nepal) and was very keen to work on Kathmandu Terai Fast Track.
 He is a member of Jacobs Associates, an engineering firm based on California.
 He has received his PhD on geotechnical engineering from Berkeley University and an engineering degrees from Carnegie Mellon University.
 He died from a severe heart attack on 18 June 2013 after playing a tennis match.
 He worked on the project for 8 years before his death.
 Jacobs Associates established Bhaskar Thapa Memorial Trust for the surviving members of his family.
The Williams Fork is a tributary of the Colorado River, approximately 33.8 mi long, in north central Colorado in the United States.
 It flows through Grand County between the valleys of the Fraser River and the Blue River.
 It rises at the juncture of McQueary and Bobtail creeks just west of the Continental Divide 8 mi west of Berthoud Pass and 7 mi north of the Eisenhower Tunnel in the Arapaho National Forest.
 It flows north-northwest to the Williams Fork Reservoir, then turns northeast and joins the Colorado at Parshall.
Janet Petra Bonnema (November 24, 1938 – May 9, 2008) was an American civil engineer and women's rights activist.
 She was hired as an engineering technician for the Eisenhower Tunnel construction project in Colorado in 1970, but was barred from performing her work inside the tunnel due to the prevailing superstition that women who went underground in tunnels or mines brought bad luck, endangering the male workers.
 In 1972 she filed a $100,000 class action lawsuit against the Colorado Department of Highways for sexual discrimination.
 The state settled the case out of court and she was allowed to enter the tunnel, although she dressed inconspicuously.
 She became a symbol for equal rights in the workplace.
 She was posthumously inducted into the Colorado Women's Hall of Fame in 2012.
The Pitkin Tunnel or Pitkin Street Tunnel is a below-ground-level, roofed but not entirely enclosed roadway, in downtown New Haven, Connecticut, United States.
 It accommodates simultaneous motor vehicle traffic in both directions.
 The tunnel runs from the eastbound one-way Elm Street between Church and Orange Streets ( ), with the southbound lanes of State Street between Court and Chapel Streets ( ) across from State Street station.
 It passes under Orange Street.
 It runs under or next to the New Haven City Hall and County Courthouse and the Federal Courthouse on Church Street, the local Emergency Operations Center, and at least three more buildings that house banks and the headquarters of United Illuminating, the electric utility serving much of New Haven and Fairfield counties.
The Simpson Tunnel, so named for the Simpson Farm it passed under, was a railroad tunnel originally built in 1903 by U.S. Steel and subsequently used by the Dunlap Creek branch of the Monongahela Railway.
 The tunnel was made of stone with a brick arch construction.
 The line was utilized both to serve coal mines and coke works in the area and to interchange with the Baltimore and Ohio Railroad's Fairmont, Morgantown and Pittsburgh line and the Pennsylvania Railroad's Coal Lick Run branch.
 The last move on that line, and thus through the tunnel, was on November 6, 1975.
 The line was subsequently abandoned by 1976 and the real estate disposed, however the tunnel was not destroyed or blocked at the time.
 At some point between 2008 and 2010 the tunnel was destroyed, likely due to the construction of the Mon-Fayette Expressway.
 It is not clear whether the tunnel was blasted or simply filled in.
Loveland Ski Area is a ski area in the western United States, located near the town of Georgetown, Colorado.
 Located at the eastern portal of the Eisenhower Tunnel, Loveland is within the Arapahoe National Forest.
 It is one of the closest ski areas to the Denver metropolitan area and Front Range corridor, making it popular with locals.

Question: In what state did the person for whom the eastbound bore of the Eisenhower Tunnel was named for serve as governor and senator?
Answer: Colorado