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- "If you're waiting for the train to Sector G, then you'll probably better off walking it. I overheard someone say that all the trams on this end of the facility are having problems."
- ―Black Mesa scientist[src]
- "Hydro Plant now operating at 60 percent."
- ―Black Mesa Announcement System[src]
Sector G Hydro Electric[2] is one of the seven main sectors of the Black Mesa Research Facility, providing the power for the facility. It is connected to the Red Line of the Black Mesa Transit System.[2]
Overview[]
Topside Hydro Plant[]
Sector G's most prominent feature is the Topside Hydro Plant, featuring the iconic Hydro-Electric Dam. A road passes above the dam; one direction leads to the Advanced Biological Research Lab,[3] the other to a series of partially destroyed freight hangars. There, Black Ops and Race X creatures squabble over the area.[4]
When Gordon Freeman reaches the dam from the Advanced Biological Research Lab, it is mostly intact, but the HECU have posted a turret on the other side. An Apache is also patrolling the area and destroys the bridge linking the intake tower to the dam. Freeman is forced to quickly dive into the basin where an Ichthyosaur is swimming to reach the intake tower and stop one of the propellers below, then pass under the dam to proceed further, in a desert area.[3]
Later, Adrian Shephard reaches the dam from the hangar area located on the other side. There he witnesses his comrades assaulting a trapped Gargantua, while the G-Man is talking on a cell phone in the intake tower, before leaving through a portal where Sprites are diving in. He then defeats the creature with dynamite, damaging the middle of the dam. At this point, the other side of the dam from which Freeman originally comes is blocked by Race X moss, and the water level on the other side of the dam has also greatly risen, apparently due to Freeman having turned off the turbines underwater.[4]
A duct system inside the dam leads to exit H-287GQ, located in a small desert area. Further along, Sector E Materials Transport can be reached through an Ordinance Storage Facility, under which the Gene Worm appears.[4]
Gallery[]
 The following is a Work in Progress as it is in the middle of an expansion or major revamping.
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| You are welcome to assist in its construction by editing it as well. However, do not make major changes before consulting the community, since the related editors probably set up guidelines for the page construction. |
Drainage Canal[]
Located at level 5, and accessed by Barney Calhoun through Entry Point B-03, the Drainage Canal is used for Waste Crushing and Disposal. It features a large lift used to move important items such as crates, and two large wheels in the canal itself used to crush garbage. The Drainage Canal is also connected through a small trapdoor to a small road linking the Freight Yard to the South Exit.[5]
This area of Sector G is reached from the Black Mesa Transit System by the Sector G Main Access Lift, giving access to all five levels of that sector, and being adjacent to another lift. A Small Materials Storage Area full of cardboard crates and a crane system in a bigger storage area can also be found at level 5.[5] It is unknown how the Drainage Canal area connects to the Topside Hydro Plant.
Gallery[]
| The following is a Work in Progress as it is in the middle of an expansion or major revamping.
|
| You are welcome to assist in its construction by editing it as well. However, do not make major changes before consulting the community, since the related editors probably set up guidelines for the page construction. |
Behind the scenes[]
The name "Topside Hydro Plant" is given in a Black Mesa Announcement System announcement;[3] the name "Hydro Electric" is given in a Black Mesa Transit System map seen in Blue Shift. It is not clearly stated that the Hydro-Electric Dam is part of the Topside Hydro Plant and that it is located in Sector G, but given the Sector's name, that seems logical.
Trivia[]
- The Hydro-Electric Dam is somewhat similar to the real-life Hoover Dam, as they look similar and are both located in deserts.
List of appearances[]
- Half-Life (First appearance)
- Half-Life: Opposing Force
- Half-Life: Blue Shift
References[]
| Preceded by Advanced Biological Research Lab |
 Half-Life story arc journey |
Succeeded by Black Mesa desert |
| Preceded by Waste Processing Area 3 |
Half-Life: Opposing Force story arc journey |
Succeeded by Sector E Materials Transport |
| Preceded by High-Energy Particle Labs |
Half-Life: Blue Shift story arc journey |
Succeeded by Freight Yard |