Construction work at the intersection of Route 380 and Saltsburg Road in Murrysville will begin May 19, Murrysville officials said at their monthly council meeting Wednesday night.

Canonsburg-based Olympus Energy funded temporary traffic improvements last year as part of its Hermes fracking well pad project, built nearby on the Murrysville-Plum border off Logan’s Ferry Road. The work will make those improvements permanent, Murrysville Chief Administrator Michael Nestico said.

Drivers headed north and east on Golden Mile Highway must now wait at the traffic light to turn left onto Saltsburg Road. The light also controls Route 380 traffic continuing straight onto Golden Mile Highway.

The intersection is an odd configuration where the state route numbers do not align with the local road names. Route 380/Fairview Drive turns sharply west as it becomes Saltsburg Road through Plum, and Route 286 (which is also part of Saltsburg Road, running across the top of Murrysville) banks south and suddenly becomes Golden Mile Highway.

Murrysville officials did not have an estimate for how long construction is expected to last.