A second bridge is to be built at New Plymouth's Waiwhakaiho bottleneck, with design work to start early next year.
New Plymouth MP Jonathan Young has revealed plans for the second bridge, sitting parallel to the existing bridge.
The new bridge will increase the number of lanes at the traffic trouble spot from three lanes to five.
Earlier this year, the New Zealand Transport Agency announced it had put aside $14m for the bridge project.
The NZTA said the design would be put out for tender and awarded early next year, with construction tendered at the end of next year and work to begin in early 2014.
Getting a solution to the Waiwhakaiho Bridge issue, which has frustrated motorists for years, was one of Mr Young's key election promises.
The new bridge is one of five stages in the upgrade of the route from Vickers Rd into the city.
Does Stratford need a maternity unit?Related story: Midwife shortage closes Stratford maternity unit
View marriage and birth notices from around the region
View obituaries from around the region