Annie Ropeik/KUCB

The completion dates for Unalaska's dock renovation are being pushed back one month.

On Tuesday, City Manager Thomas E. Thomas announced the city has granted an extension request from Turnagain Marine Construction, the contractor hired to replace two aging docks at the Unalaska Marine Center.

Thomas said the company needs more time replace the guardrail and remove boulders and creosote timbers unearthed during construction.