The City of Des Moines, Iowa, (City) is hereby soliciting consultant proposals for professional services to complete a one-way to two-way conversion traffic study for both Grand Avenue and Locust Street from 2nd Avenue to 15th Street, located within the its downtown core, as part of the Grand Avenue and Locust Street One-Way to Two-Way Conversion Study Project. This request invites qualified Consultants to submit proposals for accomplishments of the items of work described below under Scope of Services. Proposals shall be prepared and submitted in accordance with the requirements described in this Request for Proposals (RFP). Once the Consultant is selected, a contract will be negotiated based on a mutually agreed upon scope of services In 2018, the City of Des Moines adopted Connect Downtown as the City's vision for the transportation system within the core of the City. The goals of Connect Downtown were to promote safety and health, provide transportation choice, promote economic success, improve character and placemaking through transportation, and enhance connectivity of the downtown Des Moines corridor to the rest of the City and surrounding region. One recommendation that was developed as part of Connect Downtown is to convert existing one-way pair streets to two-way traffic operations. Grand Avenue and Locust Street are the main east-west, one-way pair of roadways traversing through downtown. The City has started the conversion of Grand Avenue and Locust Street to two-way traffic between 15th Street and 18th Street as part of a separate Capital Improvement Program project. While Connect Downtown provided recommendations for street cross-sections, the study was a high-level analysis and was not intended to provide specific details regarding the true impacts of the study recommendations. The City of Des Moines is looking to complete a traffic study of Grand Avenue and Locust Street from 2nd Avenue to 15th Street to determine the feasibility of a one-way to two-way conversion and analyze the impacts of this change. The City of Des Moines is seeking a qualified consultant to prepare a traffic study to identify multi-modal operations and mobility improvement opportunity, the need for turn lanes at intersection, safety impacts of additional intersection conflict points, traffic signal timing and phasing changes, impacts to on-street parking and loading zones, impacts to emergency vehicle and truck turning movements, and impacts/improvement opportunities to transit operations. The study will include multiple cross-section concept plans with a final recommended concept for the entire corridor of both streets as well as estimated probable costs. Any questions concerning the proposals should be directed to Corey Bogenreif, P.E., Principal Traffic Engineer, phone: 515/283-4014, , or email: cdbogenreif@dmgov.org. The City reserves the right to: Reject any or all proposals in whole or in part and to waive irregularities in proposals received. The method of Contractor Selection has not been Determined at this time
.webp)
