CLEARFIELD — The Pennsylvania Department of Transportation has announced that work to replace a pair of bridges on Route 449 in Potter County is underway.

The first bridge spans a tributary of the Genesee River near the village of Harmontown in Genesee Township and the other spans Pine Creek near the village of Brookland in Ulysses Township. Replacing the bridges, which are separated by roughly eight miles, will allow PennDOT to remove them from Potter County’s list of bridges in poor condition.

Each bridge will be replaced using half-width phasing and traffic is currently restricted to one lane at each location. Temporary traffic signals are enforcing an alternating traffic pattern with northbound and southbound traffic taking turns crossing the structures.

At the Genesee Township bridge, the southbound lane heading toward the village of Gold is closed. At the Ulysses Township bridge, the northbound lane heading toward the village of Gold is closed. PennDOT will issue an update prior to the traffic pattern shifting for the second phase of construction.

The bridge spanning the tributary of the Genesee River was built in 1931, is 12-feet long and carries an average of nearly 850 vehicles per day. The bridge spanning Pine Creek was constructed in 1930, is 25-feet long and carries an average of more than 1,100 vehicles daily.

The overall project consists of replacing the existing bridges with new precast concrete box culverts, roadway widening, drainage improvements, approach paving, guide rail installation, pavement marking, and miscellaneous construction. Project work is expected to be complete by late October. All work is weather and schedule dependent.

Twin Tier Constructors, Inc. of Scottsville, N.Y., is the contractor on this $1.8 million project.