Amtrak has issued asolicitation对于一份计划的三项合同的1亿美元主要合同，构成了巴尔的摩的一份近50亿美元的客运铁路隧道，涉及一份计划的1亿美元的第一笔主要合同，这是一份耗资1亿美元的第一笔主要合同。

该计划要求取代149岁Baltimore & Potomac Tunnel with two new high-capacity ones, named for Frederick Douglass, the prominent abolitionist and native of Maryland.

完成后，三部分项目的目标是升级Amtrak东北大走廊的四英里部分。

提交利息信的截止日期为7月8日。Amtrak将向发送此类利益表达的合格实体提供详细要求。铁路说，预计将在8月发行RFP。

Amtrak资本交付执行副总裁Laura Mason在一份声明中说：“这是B＆P替代计划的主要里程碑，该合同包括该项目的几个关键要素。”

在6月9日发布的邀请中，announcedon June 21, Amtrak said the main elements of the first contract are the southern approach to the new Frederick Douglass Tunnel and一个新的Maryland Area Regional Commuter (MARC)Amtrak的宾夕法尼亚车站以西的西巴尔的摩车站。

Work includes an open-cut excavation to the tunnel’s south portal as well as under-grade and overhead bridges.

The plan also calls for a new track alignment with a flatter curve than the existing one, which Amtrak says will allow for higher speeds.

铁路说，还需要使新的西巴尔的摩马克车站遵守《残疾人法案法》的要求。

In its solicitation, Amtrak says the selected contractor will work with Amtrak’s in-house design team and also is to prepare a proposed construction price for the project.

If Amtrak accepts the proposed price, the rail company will enter into a construction contract with the winning firm or team after the preconstruction phase.

If Amtrak does not accept the contractor’s proposed price, it may terminate the contractor’s participation in the project and seek other bidders.

Amtrak says it will use a single-phase, best value procurement for the first package, including qualifications and price factors.

承包商的最低资格包括至少4亿美元的切实净资产，有很强的安全记录，CMAR和其他替代交付方法的经验，并在过去10年中对三到五个项目进行了建设工作。18luck官网作为巴尔的摩项目。