# Dallas Area Rapid Transit Bonfire #P-2096182

DART Trinity Railway Express Double-Track Engineering Design

**Posted:** October 15, 2026
**Respond By:** December 08, 2026
**Identifier:** P-2096182
**NAICS:** 541330

Dallas Area Rapid Transit (DART) is seeking engineering design services for a Trinity Railway Express double-track project in Dallas.
- **Buyer:** Dallas Area Rapid Transit (DART); no specific sub-agency or office is identified.
- **Requested service:** Professional engineering design and construction-document preparation for approximately 1.95 miles of double track, from I-35E to the Mockingbird Lane grade separation.
- **Supporting design scope:** Materials include rail bridge replacement concepts, track phasing plans, design schematics, and transportation planning documents.
- **OEMs and vendors:** No OEMs, vendors, or specific products are named.
- **Notable requirement:** The project concerns railway track and related bridge design; no further technical performance requirements are provided.

### Description

The solicitation seeks professional engineering design services to prepare construction documents for 1.95 miles of double track from I-35E to the Mockingbird Lane grade separation in Dallas, Texas. Supporting documentation includes rail bridge replacement, track phasing, design schematics, and transportation planning materials. A proposal in PDF format is required. The response deadline is December 8, 2026, at 2:00 PM CST.

[View original listing](https://dart.bonfirehub.com/opportunities/220081)