Proceeding past Junction Chamber 1, Triple Barrel Hall of the Jones Falls Conduit, the 3 tunnels combine into 2 massive tunnels, that run side by side. Again these conduits composition are made up of concrete all the way around. The river runs through the conduit on the right side (right side as your heading south) leaving explorer with no option other then to take the left tunnel. Immediately after Triple Barrel Hall the tunnels bear slightly to the right before straitening out again. The enormous size of these bad boys are incredible. More like underground urban sanatoriums. The ceilings are approximately 9-10 meters high (30 feet) and 5.5-6.0 meters (18-20ft) wide. Like massive, never ending hallways. Dependent upon the volume of the river, the early portions of this conduit has very little water.
There are 2 large drains and a number of small drains that are positioned in the upper portion of the walls, towards the top of the ceiling. The 2 of the larger outfalls, drains small buried streams. They look look they could push out 200-400 cubic foot second or 7-8 foot in size. The explorer will quickly leave if this outflow starts hitting the opposing wall.
The brick foundations of buildings, occasionally can be seen peering out of the upper portions of the walls.
There is some notable graffiti art towards the end of this tunnel, just prior to the Formidable Zone of Isolation. One of the most impressive graffiti in the entire tunnel lies at the end of this section. Impressive due to the fact that it spans almost the entire face of the wall. Further research brings to light this style of graffiti is known as “Blockbuster graffiti” or “Roller Graffiti”. Its a massive piece of art with a hand holding a bottle, tagged by 1202 that reads “KEEP GOING —>” .
The explorer usually chooses this spot as a short checkpoint. Footage is shot, O2 blood saturation, vitals and a general safety check is preformed prior to the Formidable Zone of Isolation. You see, at the back end of these great halls the explorer crosses into which is known as the Formidable Zone of Isolation. It is an area that is poorly ventilated and with no surface access (regardless if the manholes sit 30 ft in the ceiling they dont exist) in case of an emergency. The closest manhole portal after this zone is 50 feet inside of Jenkins which is about 500 meters away. The explorer is troubled about this as manhole portals provide the tunnel natural ventilation and also the hope of emergency rescue. The explorer is constantly monitoring their vitals and continues assessing the air quality. The explorer notes this spot as nearing the original, brick laden, Portland concrete poured, 100 year old section of the Jones Falls Conduit, Junction Chamber II. Also known as the, Goliath Chamber. Perhaps this is where the “KEEP GOING” comes from, because you are almost there!
Looking South near Junction Chamber I
Do not try to access these Conduits / tunnels / storm sewers! It’s dangerous. Getting caught within, or even trying to get in, probably could be considered a serious offense. Especially after the events of 9/11. These pages provides a complete virtual tour of the system that you can enjoy without risking your life or a criminal record. An explorer already risked their life, so that you can explore virtually from home… so stay safe, and stay away!