PORTLAND, Ore. (KOIN 6) — Multnomah County has decided to replace the lift span deck on the Morrison Bridge just two years after it was resurfaced.
Mike Pullen with the Multnomah County Communications Office said the decision to replace the decking came after an investigation determined that the deck installed in 2011-2012 was defective and could not be effectively repaired.
The county is now considering two options for the new surface: an open steel grating or a solid deck made of aluminum.
Pullen said the original deck was an open steel grating that degraded after 53 years of use.
The county has submitted a project request to the Oregon Department of Transportation to shift funds from future Burnside Bridge repairs to pay for design and construction of the new Morrison Bridge lift span deck.
The Morrison deck repair project is estimated to cost $7.3 million, Pullen said.
The design for the new deck is scheduled to be completed later this year so the deck can be replaced in 2015.