diversion tunnel

diversion tunnel

[də′vər·zhən ‚tən·əl]
(civil engineering)
An underground passageway used to divert flowing water around a construction site.
References in periodicals archive ?
For a Concrete Gravity Dam, the diversion arrangements comprising the Coffer Dam and Diversion Tunnel (DT) are designed based on the higher of maximum non-monsoon flow observed at Dam site or 25 years return period non-monsoon flow.
Another project being implemented and funded by the Common Purpose Facility office of the two concessionaires (Manila Water and Maynilad Water) and located in Umiray, General Nakar, Quezon, is the Sumag diversion and relocation project, which is a diversion tunnel that supplements the water coming from Umiray River going to the Angat Reservoir.
A project being implemented and funded by the Common Purpose Facility (CPF) Office of the two Concessionaires (Manila Water and Maynilad Water) is the Sumag Diversion and Relocation Project which is a diversion tunnel that supplements the water coming from Umiray River going to the Angat Reservoir.
Sources Sought:Dworshak Diversion Tunnel Lighting Replacement
Similarly, work for the construction of access roads, bridges, concrete batching plant, diversion tunnel and spillway is in process, the sources added.
sites including weir (dam), diversion tunnel, powerhouse, switch yard and transmission line to review progress on the project.
According to Ricardo Jalad, administrator of the Office of Civil Defence, said among the latest victims were members of an engineering firm constructing an underground water diversion tunnel in Quezon province.
B--On the western slopes of the Hankkov valley and range of diversion tunnel inlet limestone units L11:
Unconfirmed information indicates that three trucks remain under the rubble, while a few people are trapped in the diversion tunnel - the site of construction works.
ABSTRACT: A number of problems were encountered during the first impounding of Khanpur Dam which took place accidentally due to extra ordinary precipitation just after the closure of diversion tunnel during 1983.
Rather than incurring significant costs to divert the flood waters, KCB recommended an innovative flood handling plan using a small diversion tunnel and roller- compacted concrete construction (RCC).
As per the terms of the contract, HCC will carry out the construction of concrete gravity dam, spillway and appurtenant works, coffer dam and diversion tunnel, HRT intake, head race tunnel including adits, surge shaft, civil works of pressure shaft, powerhouse and tailrace tunnel.