Typically, $750 million is the total cost for a major highway project, one that would take years to spend that kind of money. In the case of TxDOT’s plans for a mammoth rebuild of Interstate 45 and the downtown freeway grid, however, that is just the estimated cost increase so far.
Officials last week confirmed new estimates showing an increase of $477.7 million in planned work, while another $274 million in added costs are likely for projects delayed by the roadblocks the project has faced. Combined, it means rebuilding the aging freeway, which already has divided local leaders and various community groups, likely will cost well more than $9 billion. More than half of those increases would go toward the downtown portions where the intersections and changes are most dramatic.
“The rising costs are unfortunate as delay does not meet anyone’s goals,” Houston Mayor Sylvester Turner said.
The latest estimates, part of the four-year plan updated annually by the Houston-Galveston Area Council’s Transportation Policy Council show rebuilding key pieces of the freeway around downtown will cost considerably more than previously projected.
Based on the updated estimates, costs are jumping for some of the first segments slated for construction. Rebuilding I-69 between Spur 527 and Texas 288, once expected to cost $260 million, now has a projected price tag of $460.6 million, an increase of 77 percent. The next segment of I-69, from Texas 288 to I-45, increased in price from $260.7 million to $456 million, a hike of 75 percent over original estimates.
Some of the increase simply is baked into updating construction costs as major projects await construction.
TxDOT spokeswoman Raquelle Lewis said planners typically factor in costs rising about 4 percent annually, meaning the longer they sit on shelves the more expensive the projects become.
The I-45 cost increases are larger than many other projects — the entire rebuild of the Loop 610 and I-69 near The Galleria is set to cost $270.9 million — but increases as projects wait for work to begin are not uncommon.
“We are seeing some due to inflation,” H-GAC manager of project planning and delivery Adam Beckom told transportation policy council officials last week.
Four percent of $9 billion is $360 million, a lot of money but not quite half of the expected increase. That’s not exactly how the math would work here, but the point is simply that it’s more than just inflation. You may recall, as I documented extensively here years ago, the final cost of the I-10 widening west of 610 wound up costing way more than the initial (and extremely sunny) estimates claimed it would. That’s just how these things go, and we just tend to accept the ginormous amounts we spend on them. I doubt anyone’s mind will be changed by these numbers, but there they are anyway.