AARoads Forum

National Boards => Bridges => Topic started by: tolbs17 on January 25, 2022, 08:44:55 PM

Title: Bridges over railroads vs roads
Post by: tolbs17 on January 25, 2022, 08:44:55 PM
The US-17 Business bridge over this (https://www.google.com/maps/@35.5303419,-77.0731523,17.79z/data=!5m1!1e1) railroad started in November 2021 and it's expected to take until Spring 2023 and that's well over a year.

Compared to this (https://www.google.com/maps/@35.7360992,-83.0268033,16.88z/data=!5m1!1e1) one on I-40 and it started around the same time as the one I mentioned up and it will only take like 6 months to replace. That's a big difference in timeframe!

I'm guessing bridges that go over railroads take longer to build than normal roads. Like see this (https://goo.gl/maps/CBdRtFHUQWbSEYfC9) bridge and nothing has been done here.

So building and replacing bridges over railroads take 3x longer than building bridges over normal roads?
Title: Re: Bridges over railroads vs roads
Post by: Big John on January 25, 2022, 08:54:59 PM
Railroads have priority on bridgework.  The track(s) may not be hindered during construction and construction must be halted when there is a train going underneath it.
Title: Re: Bridges over railroads vs roads
Post by: tolbs17 on January 25, 2022, 09:03:06 PM
Railroads have priority on bridgework.  The track(s) may not be hindered during construction and construction must be halted when there is a train going underneath it.
Makes sense.