DENVER – The East Palestine, Ohio, train derailment has drawn new scrutiny to a long-controversial plan to send tanker trains full of hot, waxy crude oil down tracks along the headwaters of the Colorado River.

The plan calls for building a new freight railroad from remote Utah oilfields and through a roadless national forest to connect with existing tracks, where two-mile-long trains carrying billions of gallons of crude would rumble across multiple states on their way to Gulf Coast oil refineries.

The long-planned 85-mile-long Uinta Basin Railway would allow oil companies and the Ute Indian Tribe to drill thousands of new wells to extract the “waxy crude,” creating thousands of jobs while promoting U.S. energy independence and keeping gas prices low. The line is backed by Utah state and tribal officials.

But critics point to the environmental disaster caused by the East Palestine freight train derailment as further evidence the Uinta project poses unnecessary risks when the country is already pivoting away from fossil fuels.

“The disaster unfolding in East Palestine, Ohio is a terrible reminder that train derailments do occur, and that the damage from transporting hazardous materials by rail can be catastrophic,” U.S. Sen. Michael Bennet and Congressman Joe Neguse, both Colorado Democrats, wrote in a Monday letter to federal officials requesting further environmental study.

NEWS:East Palestine train derailment killed more than 43,000 fish and animals, officials say

WATCH:Officials: Norfolk Southern train derails in Ohio, no hazardous material involved

What do Uinta Basin Railway critics say?

Citing the East Palestine derailment, critics say the railroad’s own projections show it would create a spill every 13-36 years under normal operations. And this kind of oil needs to be kept warm during transport. It also hardens to the consistency of candle wax if spilled.