Union Pacific Railroad today unveiled an advanced experimental locomotive at its J.R. Davis Yard in Roseville that will test three emissions-reducing technologies including exhaust gas recirculation (EGR), diesel oxidation catalysts (DOC), and diesel particulate filters (DPF). Years in development, UP 9900 will be used for operations in northern California ranging approximately 200 miles from its base in Roseville. UP 9900 is the signature unit in a series of 25 locomotives that Union Pacific is analyzing as part of a broad test of various emissions-reduction techniques in northern and southern California. This is the latest step in the company’s ongoing effort to design, build and test technologies that reduce emissions.

Union Pacific engineers worked closely with locomotive manufacturer Electro-Motive Diesel (EMD) to reduce the standard freight locomotive engine size in UP 9900 to create the space needed to install EGR, DOC, and DPF.

Expect one way traffic control on Auburn Folsom Rd. and Cavitt-Stallman Rd. Construction crews are widening Auburn Folsom Rd., south of Cavitt-Stallman, as part of the new St. Joseph Marello Catholic church. The construction will include a turn lane to ease traffic getting into and leaving the new sanctuary.

While construction on overhead power lines and underground utilities has been going on for months, widening Auburn Folsom requires one-way traffic controls to accommodate heavy equipment. The delays are fairly short, but can be unexpected if you normally travel the free flowing Auburn Folsom route from Auburn to Folsom. It looks like they will be wrapping up soon, so probably only one or two more weeks of slow traffic.