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Originally Posted by jtk1519
So let's just assume in the future Grand Prairie and Arlington join DART or the FWTA, how much would it cost to add another track or two to that existing UP corridor? I agree that light rail for that entire length would be cost prohibitive and I would think that if this line is to serve the stadium/ballpark area, the increased capacity of heavy or commuter rail would be the way to go. I don't remember the TRE's construction cost, but I know Austin's MetroRail line, even with it's delays and cost overruns, will set them back under $4 million a mile. If DART and the FWTA were to co-own this new line the way they do the TRE, that would help spread the cost around.
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It's difficult to predict the costs because there are a few variables. Using DCTA's A-Train as an example would be a good place to start. Both rail lines requiring one new track built the entire way in the corridor. DCTA's 21 mile route will cost around $315 Million if it comes in as budgeted. That's around $15 Million per mile, and includes all upfront capital costs. DCTA will be paying DART trackage rights over the corridor on a yearly basis, those costs will be considered operational rather than capital.
Taking that same $15 Million per mile capital costs, a 37 mile commuter rail line will cost $555 Million. A major unknown variable for an Arlington-Grand Prairie commuter rail line is what the UP wants up front, and what UP wants on a yearly basis for trackage rights. DCTA was lucky that DART owned most of the corridor and had rights to that portion owned by the city of Denton.
As I wrote earlier, the UP doesn't like commuter trains operating on their corridors. Utah had to buy in advance for 20 to 35 feet of the 100 feet wide UP rail corridor to be used by their Frontrunner trains. That was an upfront capital cost of $185 Million vs yearly trackage right fees. The Frontrunner rail line is Salt Lake City's short spur to UP's transcontinental mainline. It wasn't extremely busy with cross country freight trains, but busy enough with local traffic that the UP didn't want to share its freight tracks with commuter trains. Although the UP was willing to sell 20-35 feet width of their corridor. Additionally, the UP wanted an additional $103 Million in advance for just trackage rights on their transcontinental mainline north of Ogden to Brigham City, a total of $288 Million of capital over and above the costs of building the tracks ad buying the trains.
The UP could want just as much in advance, even possibly more, for trackage rights on the old T&P mainline between Dallas and Fort Worth. So, the capital costs for this commuter rail line could rise from $555 Million to $843 Million; that's why it is difficult to predict how much the capital costs would be, no one really knows what the UP wants for access rights on this very busy freight line. And I might add, the UP will not speculate on this either.
Here's a YouTube timelapse video of the entire Frontrunner (North) tracks. You can see what UTA ended up doing to start commuter rail services in Utah next to UP tracks, not on UP tracks.
• Video Link
It is far easier to predict the costs for a 37 mile light rail line down SH-180, where the State already owns the right-of-way.