tc001-Traffic Control.pdf

This is a Traffic Control Standard Road Plan document issued by the Iowa Department of Transportation (Iowa DOT) as a design standard for work not affecting traffic on two-lane or multi-lane roads. The document provides specifications for slow-moving operation vehicles stopped on shoulders for less than one hour, requiring placement of 48" x 48" traffic signs (W21-6 for survey crews and W20-1 for road work ahead) positioned 1,000 feet in the direction of traffic. All vehicles must be equipped with amber revolving lights or amber strobe lights, which should be used whenever appropriate. The standard emphasizes that work vehicles should be located as far from the open traffic lane as possible when parked, entrances and driveways should not be blocked, and work must not interfere with traffic flow. For operations lasting longer than one hour, contractors are directed to reference alternative traffic control plans TC-202 or TC-402. This standard applies to the Davenport Tile Boring Replacement project (RFB #645-RFB-1746-2025), which includes subdrain pipe replacement, steel encasement, topsoil management, mulching, seeding, and silt fence installation.

The traffic control specifications outlined in this document serve as mandatory requirements for bidders responding to the Davenport project, with a bid opening scheduled for May 7, 2025, at 5:25 PM CDT and closing on May 29, 2025, at 1:00 PM CDT. Site visits are permitted Monday through Thursday between 10:00 AM and 2:00 PM, with specific safety protocols required for interstate shoulder access. The document does not contain pricing information, set-asides, incumbent vendor details, or funding sources, as it functions as a technical standard rather than a procurement notice. Bidders must comply with these traffic control standards as part of their overall project execution plan to ensure worker and public safety during construction activities scheduled for completion by November 15, 2025.