Unit 3 Line B

Unit 3 Line B is a large, horseshoe-shaped storm drain tunnel beginning at the LA river.

Together with Main Line 29901, it makes the Northeast Gallery Complex. It contains some of the best street art in all known systems, and can directly access the Upper Gallery area through a passageway at point X-ray.

Entrance
The entrance to U3 Line B is a large, horseshoe-shaped entryway which goes straight back for several hundred feet before curving to the right. The entrance is painted over with anti-graffiti paint regularly to 20 feet in. This section also has walls coated with anti-graffiti paint which absorbs cheap paint.

On the Northeast Gallery Complex map, the entrance to U3 Line B is section Alpha.

Interior Section
After the entrance, U3 Line B stays the same shape and size while making several gentle turns while approaching point X-Ray. In the final section, there is an Illuminati all-seeing eye and a wall of minions. There are several large, high-quality art pieces in this area.

On the Northeast Gallery Complex map, the interior section of U3 Line B is section Omega.

X-Ray


There is a narrow tunnel about six feet tall that connects Unit 3 Line B with Main Line 29901, exchanging water from Main Line 29901 to Unit 3 Line B. It is easy to cross between the two tunnel systems here. This passageway creates the Northeast Gallery Complex by bridging the two storm drain tunnels.

On a typical passage, it's common to cross to the "Upper Gallery" section of Main Line 29901 via X-Ray to see the best art.

X-Ray is poorly marked on many public data sources, and is difficult to find information on remotely.

Unlike the rest of the tunnel system, wind direction in X-Ray can be random due to air exchange between the two tunnel systems. Because of this, the flame from a lighter cannot be used to find the direction of the exit reliably while in in X-Ray.

Change To BI 0479 - UNIT 1
After point X-Ray, where Unit 3 Line B and Main Line 29901 are connected by a narrow tunnel, the main tunnel becomes known as BI 0479 - UNIT 1.

In the Northeast Gallery Complex map, this area is called section Gamma. It has an unusually high water level and less art than other sections.