Long Beach city traffic engineer David Roseman signaled Friday that the city is not amenable to paying for such work.
"From our perspective, if there's impacts in Long Beach from the project, we would think the proponents should fund those mitigations," Roseman said.
The public and city can weigh in and ask questions about the widening project between Costa Mesa and the border of Los Angeles and Orange counties on July 24.
The California Department of Transportation and the Orange County Transportation Authority released a draft environmental impact report and environmental impact statement on the plan in May 2012. Officials received comments regarding potential traffic impacts in Long Beach, and a supplemental draft EIR was issued on Friday.
The updated information suggests negotiated "fair share" payments from the OCTA to Long Beach and Caltrans for the cost of improvements at intersections impacted by increased traffic.
By its nature, the terminus of the project alarmed city officials in Los Angeles County, including Long Beach, because it would squeeze the traffic of the expanded portion of the freeway into fewer lanes of the 405 and 605 Freeway in Long Beach.
Three options were presented in the initial draft EIR.
One would add a single, general-purpose, non-toll lane in each direction of the 405 between Euclid Street and the 605 at a cost of $1.3 billion.
Costa Mesa Mayor Eric Bever, Fountain Valley Mayor John Collins, Los Alamitos Mayor Troy Edgar, Seal Beach Mayor Michael Levitt, Westminster Mayor Margie Rice and Huntington Beach Mayor Pro Tem Devin Dwyer signed a pledge supporting a second option that would add two non-toll lanes in each direction at a cost of $1.4 billion.
The third option, which includes a toll lane, would go from the 73 Freeway in Costa Mesa to the 605 and would cost $1.7 billion, according to OCTA spokesman Joel Zlotnik. It would also add a single free lane in each direction.
Two additional concepts were proposed in April, one adding another general purpose lane in each direction and converting the existing carpool lane into a single high occupancy vehicle toll lane requiring a minimum of three vehicle occupants. The other option was ruled out as unfeasible due to its traffic impact on surface streets in Orange County.
Roseman said the plans will have far-reaching effects on the 405 in Long Beach and surrounding surface streets.
"We from the city would encourage all of our residents to take a look at this environmental document, and to express their opinions and come out to the community meeting to let Caltrans and OCTA know what they think about the project," he said.
The July 24 meeting is from 6-8 p.m. at Hill Classical Middle School, 1100 Iroquis Ave., and will be attended by project representatives and will include informational boards about the widening, set to begin in mid-2015.
The supplemental EIR and traffic study can be viewed at dot.ca.gov/dist12/405/index.htm.
Public comments on the report will be accepted through Aug. 12.
Those may be made in person, via email at 405.SupplementalDraft.EIR.EIS@parsons.com or submitted by mail to Smita Deshpande, Branch Chief, Caltrans -- District 12, Attn: 405 SDEIR-DEIS Comment Period, 2201 Dupont Drive, Suite 200, Irvine, CA 92612.
Wire services contributed to this story.