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  5. ›Weed Spraying Services Statewide

Iowa Department of Transportation (Iowa DOT)·Iowa

Weed Spraying Services Statewide

Closes 3/12/2026$500k – $2MInvitation for Bid
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Description

The Iowa Department of Transportation (Iowa DOT) is seeking competitive bids for weed spraying services statewide. The contract will require the selected vendor to provide all labor, materials, water, tools, equipment, and incidentals necessary to perform spring and fall weed control spraying services in designated areas. The vendor must apply herbicide within existing right-of-way of interstate and primary roads, identify and control all Iowa noxious and invasive weeds, and meet other requirements and specifications outlined in the attachments. The contract will be awarded to the responsible bidder whose submission is the most advantageous to the Iowa DOT, considering cost and other factors. Key aspects of the job include: * Providing weed spraying services statewide * Applying herbicide within existing right-of-way of interstate and primary roads * Identifying and controlling all Iowa noxious and invasive weeds * Meeting requirements and specifications outlined in the attachments * Ensuring compliance with all laws, rules, and regulations related to the handling of herbicides

Attached files

The solicitation documents live at the source — open the bid source above to download them.

Contact

Matthew Barker(Procurement Specialist)

[email protected]

(515) 239-1173

Key dates

Opened
2/19/2026
Pre-bid meeting
2/26/2026
Closes
3/12/2026
Duration
9 months

Last updated

Details

Type
Invitation for Bid
Industry
Environmental Services
NAICS
115112
Solicitation №
645-RFB-2436-2026

Budget estimate

$500,000 – $2,000,000

Based on the scope of work and the fact that the contract will be awarded to the responsible bidder whose submission is the most advantageous to the Iowa DOT, considering cost and other factors, it is estimated that the budget for this contract could range from $500,000 to $2,000,000. This estimate is based on the assumption that the contract will require a significant amount of labor, materials, and equipment to perform the weed spraying services statewide.

AI estimate from the solicitation

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