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  5. ›25CRDLWBMALDR-002 - Pammel SP, Harmon Tunnel Repairs…

Iowa Department of Natural Resources (DNR)·Iowa

25CRDLWBMALDR-002 - Pammel SP, Harmon Tunnel Repairs (26-04-61-01) REBID

Closes 11/19/2025$500k – $2MRequest for Proposal
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Description

The Iowa Department of Natural Resources (DNR) is seeking architectural and engineering services from a qualified AEC firm for the design of the repair of architectural stone façade and retaining walls for Harmon Tunnel at Pammel State Park in Madison County. The project aims to preserve the historical significance and architectural character of the Harmon Tunnel structure. The selected firm will provide a detailed report addressing each of the items outlined in Section 4, recommended repair solutions with a minimum design service life of 40 years, and hourly rates for Phase 2 of the project. • The project requires architectural, structural, and civil engineering services. • The firm will prepare final design in accordance with Iowa Department of Transportation Standard Specifications. • The firm will be responsible for coordinating the process with DNR, obtaining permits, performing surveys, preparing bid documents, and conducting onsite construction inspection assistance. • The DNR will be responsible for NEPA Section 7 and Section 106 compliance. • The project has an initial term of 25 months, with payment terms of 60 days. • The firm must maintain insurance coverage, including general liability, automobile liability, and workers' compensation.

Attached files

Contact

Colton Lullmann(Issuing Officer)

[email protected]

(515) 361-0743

Key dates

Opened
10/3/2025
Questions due
10/24/2025
Closes
11/19/2025
Duration
25 months

Last updated

Details

Type
Request for Proposal
Industry
Civil Engineering
NAICS
541310
Solicitation №
25CRDLWBMALDR-002 REBID

Budget estimate

$500,000 – $2,000,000

The budget for this project can be estimated based on the scope of work and the requirements for architectural and engineering services. The project involves the design of the repair of architectural stone façade and retaining walls for Harmon Tunnel, which may require significant expertise and resources. Assuming the selected firm will provide a team of architects, engineers, and other specialists, the total cost for the project could range from $500,000 to $2,000,000, depending on the complexity of the design, the number of hours required, and the firm's hourly rates. The Iowa DNR may also consider factors such as the firm's experience, qualifications, and past performance in determining the budget.

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