NORTH COAST, Calif. – Caltrans said there will be intermittent full road closures at Albion River Bridge on Highway 1 in Mendocino County beginning Monday, Dec. 3, and continuing over a two-week period.

Closures will be in effect from 8 a.m. to 5 p.m., weekdays. Caltrans said motorists should expect 20-minute delays.

Full road closures are required due to helicopter flights over the work zone. The helicopter is helping to stage equipment for geotechnical studies for the Albion River Bridge.

The helicopter flights are weather dependent so the exact schedule is unknown at this time.

The Coastal Development Permit issued by the California Coastal Commission allows helicopter flights for a time period of up to four weeks, however the actual days of helicopter flights will be no more than six, Caltrans said.