Complaining about traffic congestion might be the most unifying topic of conversation in St. Tammany Parish, where rampant growth has far outstripped road capacity for major corridors like Interstate 12. Social media pages have even been spawned for people to vent.
"Treat yourself like I-12 and never stop working on yourself, no matter how inconvenient it is to everyone else," a poster quipped on one Facebook page devoted to the topic.
But while the massive $187 million project to widen I-12 from U.S. 190 to Louisiana 1077 in western St. Tammany might seem like it's taking eons, the first phase, from U.S. 190 to Louisiana 59, is all but finished, according to the state Department of Transportation and Development.
The second phase, a 3-mile stretch from Louisiana 21 to U.S. 190 that includes widening the bridge over the Tchefuncte River, is currently under construction with completion anticipated this summer.
And in July, DOTD expects to let bids on the third phase, from La. 21 to La. 1077.
The I-12 project is just one of several large-ticket state highway projects currently underway in St. Tammany. Another is the new 20-mile four-lane highway that will connect Lacombe to Bush near the Washington Parish line.
And construction will start soon on a new bridge on U.S. 190 over the Bogue Falaya River in Covington — a chronic traffic chokepoint that has exasperated drivers for decades.
"These are very impactful projects to ease traffic and make it safer," St. Tammany Parish President Mike Cooper said.
22 projects in St. Tammany
All told, DOTD will spend $172 million on 22 projects in St. Tammany Parish over the next 12 months alone, highway department Sec. Shawn Wilson said Thursday during an update on local projects to the Northlake Mandeville Rotary Club.
The I-12 work, which adds a third lane in each direction, began in May of 2020. That's much sooner than the state's original start date, which was 2023. A multi-vehicle accident in 2018 that killed four people lent a sense of urgency that helped get the project on a faster track.
Wilson said the interstate work had to be done in phases, mainly because of the steep cost. Largely paid for with federal highway dollars, the cost mushroomed from an estimated $154 million at the start of the project to $187 million.
New highway taking shape
While the I-12 widening launched sooner than scheduled, another huge highway project now under construction in St. Tammany — Louisiana 3241 — was actually funded in 1991 as one of 16 projects to have been paid for with a 4-cent-per-gallon gasoline tax. That money ran out in 2007 or 2008, Wilson said.
"It should have been here 30 years ago," Wilson said of the highway that will run from the juncture of I-12 and Louisiana 434 in Lacombe north to Bush.
At an estimated cost of nearly $189 million, the project is even pricier than the I-12 widening. A combination of BP oil spill settlement money and federal stimulus money is being used for the project.
DOTD broke ground in November of 2021, and work is currently being done on two sections, a 5.6 mile stretch from Louisiana 435 to the junction of Louisiana 40 and Louisiana 41 and an 8-mile section from Louisiana 36 to La. 435. Wilson said that a lot of land-clearing is underway, but there's also pavement already going down.
DOTD estimates a spring 2024 date for the work to be complete on those two segments. Bids will be let in July on the final leg, from the juncture of I-12 and La. 434 to La. 36, a 6.2-mile section that is expected to be the most expensive section at an estimated $79 million.
Construction costs rising
When first pushed by state Sen. B.B. "Sixty" Rayburn, D-Bogalusa, the new highway was intended to help what was then a thriving timber industry in Bogalusa. Officials there still have hopes that the north-south corridor will be an economic stimulus for the city.
Decades after the road was planned, the western and eastern sides of St. Tammany are bursting at the seams. La. 3241 could open up central St. Tammany to another wave of development, parish officials say.
But Cooper says that the new corridor will also reduce traffic congestion on St. Tammany highways like La. 41 and La. 21.
Construction of a third large project, a new $30 million Bogue Falaya bridge on U.S. 190, will also begin this year. DOTD estimates a 2025 completion date, although so far work has been confined to moving utility lines.
Wilson has previously called the bridge, which funnels three northbound lanes of traffic into single lane, one of the worst choke points in the state. A new northbound bridge will be built first, just east of the existing span. A second south-bound bridge will be built in a later phase.
Covington Mayor Mark Johnson quizzed Wilson about the full project, which also calls for widening 2.7 miles of U.S. 190 Business to La. 25, making 190 a four-lane divided highway with several roundabouts to replace traffic lights.
"It's important to get that design work started, because the building of the new bridge by itself is not going to fix our problem," Johnson said.
Wilson said that the highway widening and new bridges will have a big impact on capacity, but with money constraints, work has to be done in phases.