The Memorial Bridge, carrying Route 1 traffic from Kittery to Portsmouth, N.H., over the Piscataqua River, was opened to motor vehicle traffic today at noon.

The bridge was closed to motor vehicle traffic on Dec. 9 after an assessment of the bridge revealed some supports were deteriorating. The decision to make repairs to the bridge, which is due to be replaced, came earlier this week. Repairs were estimated to cost $30,000 and projected to take three weeks to complete.

“Dedicated bridge maintenance personnel and dry weather have allowed the reopening of the Memorial Bridge to occur much quicker than anticipated,” New Hampshire Department of Transportation Commissioner George Campbell said. “These crews have worked long days to make sure the Memorial Bridge is safe to reopen.”

The 3-ton weight limit has been reinstated. The sidewalk on the upstream side of the bridge will remain closed for a couple of days to complete nonstructural work, but the sidewalk on the downstream side of the bridge will remain open.