Caldecott Tunnel

The Caldecot Tunnel is a four-lane highway tunnel cutting through the Berkley Hills that connects Oakland and Orinda, two cities in California. It carries the California State Route 24. Named after Thomas E. Caldecott, former mayor of Berkeley, it opened in 1937 as a two-lane tunnel. The third lane opened in 1964 and the fourth in 2013. Currently, the two oldest lanes carry eastbound traffic and the two newest lanes carry westbound traffic.   It also serves as an entrance to Camp Jupiter.

History

The Heroes of Olympus

The Lost Hero
Jason Grace saw the tunnel as he, Piper McLean, and Leo Valdez were flying in a helicopter from Mount Diablo, following the rescue of Piper's father. Jason felt somehow connected to the tunnel, but before he could think any more of it the helicopter had flown past.  
The Son of Neptune
On the highway, Percy Jackson stumbled upon a woman named June, who asked him to carry her across to Camp Jupiter. He agreed, and carried her there, crossing a river along the way. The Gorgons chased them, but they managed to get through the tunnel with the help of Frank Zhang and Hazel Levesque.   After returning from their quest, Percy, Frank, and Hazel met with Tyson, Ella, and Mrs. O'Leary outside of the tunnel.  

The Trials of Apollo

The Tyrant's Tomb
During the Battle of San Francisco Bay, the Twelfth Legion Fulminata defends the tunnel to the last legionnaire until Commodus and Caligula arrive and demand surrender. However, Frank calls spolia opima, single battle to the death between leaders, and the two accept, and Apollo joins in. Commodus faces off against the fallen god, and Caligula takes the praetor. As they fight, they head into the tunnel, and Frank triggers his trap using his stick, resulting in an explosion that kills Caligula and badly wounds Commodus, allowing Apollo to finish him off. Much to the grief of his friends, Frank is believed to have perished in the explosion.   Following the battle, much to everyone's surprise and joy, Frank is revealed to have survived and is carried back to New Rome by Arion.  

Bane of Eris

The First Attempt
During the first attempt by Eris to wipe out the demigod camps, she sent an army of monsters to attack the tunnel and invade the camp. Isaia Jackson risks his life to defend the tunnel during the first wave before Camp Half-Blood arrive to the aid of Camp Jupiter to help defend it during the following waves.
Founding Date
1937
Type
Tunnel
Parent Location
Owning Organization