This Solicitation opportunity from Iowa was posted on June 11, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Harmon Tunnel Highwall (Bluff) Scaling, Pammel State Park, Madison County

Closed

26-04-61-02State & Local

Submission Closed06/25/2026, 08:00:00 PM UTC

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

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NAICS: 237990

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Base SEATTLE(00033)

POSTED

1 day ago

DEADLINE

in 4 days

AI Contract Overview

This contract involves the careful removal of loose or unstable rock fragments and talus from the highwalls surrounding both tunnel portals at Harmon Tunnel in Pammel State Park, Madison County. The work is restricted to manual, mechanical, or chemical (non-explosive) methods and excludes any blasting. It includes the complete removal and disposal of all debris generated from scaling operations within the designated zone of influence, as well as loose material in the area between this zone and the tunnel pavement. Personnel performing the scaling must have proven experience, with foremen and workers required to have completed similar projects at least three times in the past five years and to have a minimum of two years of full-time rock slope stabilization experience. The solicitation is issued by the Iowa Department of Natural Resources and bids must be submitted electronically by June 25, 2026, at 3:00 PM. The project location is in Madison County, Iowa, and all relevant plans and bidding instructions are provided through the official bid portal. The contact for the project is Darin Galbraith, reachable via email or phone for inquiries related to the bid submission and project details.

General Info

Remove loose rock fragments from Harmon Tunnel highwalls using non-explosive methods; experienced personnel required.

Agency

Iowa → Department of Natural ResourcesView Agency

NAICS

237990 - Other Heavy and Civil Engineering ConstructionView NAICS

Place of Performance

Madison County, IA, USA

Set-Aside

NONE

Documents

(2)

26-04-61-02 Harmon Tunnel Highwall Scaling Competitive Quotation

PDF•rfq

26-04-61-02 Harmon Tunnel Highwall Scaling Requirements

PDF•specifications

AI Contract Breakdown

Uniform Contract Format

Timeline

PhaseClosed

PostedJun 11

Solicitation

Response DeadlineJun 25

Deadline has passed

Submission Closed

06/25/2026, 08:00:00 PM UTC

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Organization & Contact Information

AgencyIowa → Department of Natural Resources

Contacts1 person available

OfficeDES MOINES, IA, 50321, USA

Organization / Agency

Iowa → Department of Natural Resources

View Agency Profile

Office AddressDES MOINES, IA, 50321, USA

Contacts

Darin Galbraith

contact@example.gov

+1 (555) 000-0000

Full Description

"This work includes the removal of loose or potentially unstable disjointed spalled/ exfoliated bedrock fragments and talus above/ around both tunnel portal highwalls (within the zone of influence as depicted in the Drawings) by manual, mechanical or chemical (non-explosive) methods. Includes removal and disposal of all spoil resulting from the highwall scaling operation and all loose material located in the area between the 'zone of influence' and the tunnel pavement. Blasting is not permitted. Each rock slope scaling foreman and all personnel conducting work or activities related to scaling operations shall have performed satisfactory work on three similar projects within the last five years. All personnel must have a minimum of two years of full-time experience in rock slope stabilization that includes rock scaling."
Please see the plans and bid package as noted below. Bid Closing Date and Time: 6/25/2026 at 3:00 PM. Bids must be submitted electronically as directed in the General Information and Instructions to Bidders.