PORTLAND, Maine — An attempt to stop a statewide vote on Central Maine Power’s proposed hydropower transmission corridor failed, but an appeal is likely. 

A Maine judge on Monday rejected a lawsuit that targeted petitions used to put the proposal on the November ballot. 

The secretary of state rejected 16,332 signatures but found that there were enough valid signatures to clear threshold to put the $1 billion project to a vote. 

The CMP-aligned Clean Energy Matters said the judge's decision will likely be appealed to the state supreme court.

The CMP proposal calls for the construction of a 145-mile transmission line to bring 1,200 megawatts of electricity from Hydro-Quebec to the New England power grid. 

Most of the transmission line would follow established utility corridors, but a new swath would be cut through 53 miles of wilderness owned by CMP in western Maine.

RELATED: More than $300 million in new contracts awarded for controversial transmission line project

RELATED: 2,052 CMP transmission line petition signatures previously counted now found invalid by Sec. of State

RELATED: Maine Supreme Court upholds PUC approval of energy corridor

RELATED: Proponents of controversial CMP project allege opposition groups 'illegally' gathered signatures

RELATED: Referendum to block CMP transmission line will go forward

RELATED: CMP's parent company setting up separate company for corridor project