Bus shuttles will support October track surfacing for A, B, G and N lines
DENVER (Oct. 13, 2025) –– The Regional Transportation District (RTD) will perform routine annual track surfacing work through October that will temporarily affect rail service for A, B, G and N lines. Bus shuttles will support temporary suspensions of rail service during the work.
Saturday, Oct. 18:
- A Line: Bus shuttles will provide service between Union Station and 38th-Blake Station beginning with the first departure from Union Station at 3 a.m. and lasting until approximately 3 p.m. Customers can board bus shuttles at the following station locations:
- Union Station – Gate B-22
- 38th-Blake Station – bus bridge stop
- N Line: Bus shuttles will provide service between Union Station and 48th & Brighton-National Western Station beginning with the 6:04 a.m. departure from 48th & Brighton-National Western Station and lasting until approximately 3 p.m. Customers can board bus shuttles at the following station locations:
- Union Station – Gate B-22
- 48th & Brighton-National Western Station – bus stop at station
Tuesday, Oct. 21:
- N Line: bus shuttles will provide service between Union Station and 48th & Brighton-National Western Station beginning with the 5:04 a.m. departure from 48th & Brighton-National Western Station and lasting until approximately 1 p.m. Customers can board bus shuttles at the following station locations:
- Union Station – Gate B-22
- 48th & Brighton-National Western Station – bus stop at station
Wednesday, Oct. 22:
- B and G lines: bus shuttles will provide service between Union Station and 41st-Fox Station beginning with the 4:11 a.m. departure from 41st-Fox Station and lasting until approximately 1 p.m. Customers can board bus shuttles at the following station locations:
- Union Station – Gate B-22
- 41st-Fox Station – Gate D
Operating multiple trains along the tracks throughout the service day inevitably leads to shifting and settling of the ballast, the rocks under the rail. To protect trains, tracks and customers, RTD includes regular surfacing as part of its overall maintenance program. Resurfacing corrects rail alignment for a smoother ride and is essential for delivering safe and reliable transit service.
During the surfacing process, a tamper vehicle picks up the rail along with the rail ties, then pushes metal paddles into the ballast to vibrate and compact the ballast under the ties. This brings the track up to a specified height and eliminates dips in the rail. A regulator vehicle follows behind the tamper, distributing the ballast and smoothing out the track bed to bring it to a uniform appearance. In addition to smoothing out any bumps along the alignment, the planned preventive track maintenance is an important way to extend the life of RTD’s rail system. RTD endeavors to be a good steward of its publicly owned infrastructure and keeping the rail in good condition will help it last longer.
Customers are encouraged to check the RTD website ahead of traveling and sign up for Service Alerts. Complete schedules for all RTD services are available at rtd-denver.com. To view a video of how to take bus shuttle service click here.