1.15pm update: State Highway 29 in the lower Kaimai range has both lanes now open following the recovery of a truck and trailer from a crash on Saturday.

"The recent truck recovery on SH29 Lower Kaimai is now complete, all lanes are open," says a Waka Kotahi NZTA spokesperson.

"Expect delays due to congestion."

Motorists have experienced significantly long delays over the Kaimai Range with traffic reportedly backing up for more than 5km.

The traffic congestion is due to the recovery of a truck and container/trailer unit from an accident on Saturday afternoon.

A truck and container/trailer unit rolled on the state highway on Saturday. One person sustained moderate injuries.

There is serious traffic congestion on SH29, Kaimai range due to a truck and trailer being recovered from an accident on Saturday. Photo: Andrew Reid.

1pm update: Motorists on State Highway 29 are reporting delays of up to two hours over the Kaimai range.

"It's still backed up for miles," says a motorist who contacted SunLive at 12.27pm. "We left Papamoa at 11.09am and have only just gotten through.

"There's well more than 5km of traffic backed up going towards the accident, most can still expect significant delays by the looks of it.

"[Our] family's been joking that they ‘disappear into the clouds' because of just how far back it goes."

The traffic congestion is due to the recovery of a truck and container/trailer unit from an accident on Saturday afternoon.

A truck and container/trailer unit rolled on the state highway on Saturday. One person sustained moderate injuries.

"Due to a truck recovery on SH29 Lower Kaimais, traffic control is in place and caution is advised along this route. Expect long delays and pass the scene with care," says a Waka Kotahi NZTA spokesperson.

Motorists are advised to delay travel or use alternate routes.

There is serious traffic congestion on SH29, Kaimai range due to a truck and trailer being recovered from an accident on Saturday. Photo: Andrew Reid.

12noon update: Delays of up to two hours are being reported by motorists travelling on Mothers' Day on State Highway 29, Kaimai Range.

The traffic congestion is due to the recovery of a truck and container/trailer unit from an accident on Saturday afternoon.

"We've got a screaming newborn in the car," says one SunLive reader. "I would imagine a lot of Mother's Days have been ruined having to sit in traffic.

" It's taken an hour and a half from Tauriko BP to get through."

A truck and container/trailer unit rolled on the state highway on Saturday. One person sustained moderate injuries.

"Due to a truck recovery on SH29 Lower Kaimais, traffic control is in place and caution is advised along this route. Expect long delays and pass the scene with care," says a Waka Kotahi NZTA spokesperson.

Motorists are advised to delay travel or use alternate routes.

There is serious traffic congestion on SH29, Kaimai range due to a truck and trailer being recovered from an accident on Saturday. Photo: Andrew Reid.

Earlier, 10.40am:

Traffic is building up significantly on State Highway 29 in the Kaimai range, causing long delays for motorists.

Tauranga Transport Operations Centre says there is major traffic congestion on SH29 in the area of Valley View Rd and Soldiers Rd.

A truck and container/trailer unit rolled on the state highway on Saturday. One person sustained moderate injuries.

Aerial view of SH29 showing where the traffic congestion is located. Image: Google Maps.

"Heavy Haulage are in the process of recovering truck and container/trailer unit from [the] previous accident yesterday afternoon," says a Tauranga Transport Operations Centre spokesperson.

"Significant delays can be expected."

"Traffic is crawling and backed up from Valley road through to Kaimai School," says a SunLive reader. "Bumper to bumper."

There is serious traffic congestion on SH29, Kaimai range due to a truck and trailer being recovered from an accident on Saturday. Photo: Andrew Reid.

"Due to a truck recovery on SH29 Lower Kaimais, traffic control is in place and caution is advised along this route. Expect long delays and pass the scene with care," says a Waka Kotahi NZTA spokesperson.

Motorists are advised to delay travel or use alternate routes.

Screen shot from the Waka Kotahi NZTA traffic camera on SH29 at 11.54am, Sunday May 14.

At the scene?

Phone 0800 SUNLIVE or email [email protected]