Support Services for A-train Commuter Rail Implementation – Denton County Transportation Authority (DCTA)
The Denton County Transportation Authority (DCTA) retained the LAN led On Track joint venture to provide professional support services for implementation of several bus and rail projects throughout the DCTA service area. The major project during the performance period of this contract is the A-train Commuter Rail Project. LAN provided a variety of planning, procurement, design, and construction management services. The commuter rail project is along the old Denton Branch, formerly UPRR and is a shared corridor with Dallas, Garland and Northeastern Railroad (DGNO) for approximately 10 of the 21 mile corridor. The Authority selected a Construction Manager General Contract (CMGC) delivery method and LAN served the Authority overseeing the construction work.
The CMGC submitted at Guaranteed Maximum Price (GMP) based on 85% design drawings, however when final issue for construction drawings were submitted to the Authority by the design team, several significant changes had occurred. The LAN team quickly coordinated a value engineering team to review the designs for the Authority, and then prepared revisions that have realized an estimated $28M in capital cost, bringing the cost back within the Authorities budget.
The LAN team also designed and provided construction oversight on DCTA rail vehicle maintenance facility. The 56,000 SF maintenance facility includes offices, dispatch, fueling, vehicle wash, turntable, inspections pits, and storage track. The facility was designed to be expandable to 76,000 SF, as needed.
At a glance
21 miles of track
Saved $30M through value engineering
Alleviates congestion on the I-35E corridor
Carries passengers from downtown Denton to Carrollton
First light rail vehicle to function in a shared environment with freight locomotives and without a temporal separation
Stadler GTW fleet improved vehicle fuel efficiency by 67%
56,000 SF maintenance facility
Construction Mgmt & Inspection
Land & Site Devel
Denton County Transportation Authority