Lett told the Bay of Plenty Times a meeting had been set up to organise "some kind of protest" but supplied no further details.
"I've had enough. These people [councillors and MPs] are making decisions about other people's lives, it's very very frustrating," Lett said.
Whakamarama resident Robert Cross said a group of "fiery" and "passionate" residents filled Settlers Hall.
He believed a four-lane highway was the only proposal that would resolve the issue of the number of fatalities on State Highway 2.
Omokoroa residents had also launched a petition calling for the Bay of Plenty Regional Council to make upgrading the Omokoroa to Te Puna stretch of State Highway 2 a higher priority.
Bay of Plenty MP Todd Muller said for State Highway 2 to be listed No 11 on the regional transport committees list of priorities was an "utter disgrace".
"The community is outraged, and quite rightly so," Muller said.
"I have a total appreciation of the frustration the community is feeling and my promise to them is that I will continue to push this issue as hard as I can in Wellington on their behalf."
Labour list MP Angie Warren-Clark spoke at Wednesday's meeting and agreed local residents were "upset".
Warren-Clark said the upgrade of State Highway 2 was going ahead, but the New Zealand Transport Agency, not the Government, would decide when it would happen.
She said that at the meeting she "made a commitment" to advocate on behalf of the community as the roading upgrade was "too important" to ignore.
Western Bay councillor Don Thwaites said there had been nine fatalities on a 4km stretch of State Highway 2 in the past nine years.
"This should not just be a No 1 priority for the Bay of Plenty but a No 1 priority for New Zealand."
Western Bay Mayor Garry Webber said: "We will be putting in a pretty strong submission, you can be sure of that."
Regional Land Transport Plan timeline
February 19 – Public consultation opens
March 23 – Public consultation closes
April 11-12 – Hearings
May 7 – Deliberations
June 8 – Regional Transport Committee makes a recommendation to the regional council
June 21 – Regional council considers plan for approval
June 30 – Final plan submitted to NZ Transport Agency
August 31 – NZ Transport Agency releases National Land Transport Programme
Source - Bay of Plenty Regional Council