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Rock Scaling and Stabilization

Active

Federal

Response Deadline10/30/2026, 10:00:00 PM UTC

Contract Overview

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

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This subcontract for the Department of the Interior's NPS Conops Strategic DOI involves rock scaling and stabilization services at the Allegheny Portage Railroad Historic Site. The contractor is responsible for inspecting tunnel crowns and walls to remove unstable rock while ensuring critical supporting rock and keystone blocks remain intact. Work will be performed using man lifts to access the tunnel crowns, with a total delivery requirement of 3,528 square feet of scaled and stabilized rock surface. The opportunity is designated as a total Small Business Set Aside under NAICS code 238990. It was posted on September 17, 2026, with a response deadline of October 30, 2026.

General Info

Small business subcontract for rock scaling and stabilization at Allegheny Portage Railroad Historic Site.

Agency

Department Of The Interior → Nps Conops Strategic DOIView Agency

NAICS

238990 - All Other Specialty Trade ContractorsView NAICS

Place of Performance

DC

Set-Aside

SBA

Documents

This scope was carved out of 140P4226R0026.

The full solicitation package (12 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Z--ALPO STABILIZATION OF STAPLE BEND TUNNEL

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Timeline

PostedSep 17

subcontract

Response DeadlineOct 30

Submission deadline

Response Deadline

10/30/2026, 10:00:00 PM UTCin about 1 month

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Organization & Contact Information

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AgencyDepartment Of The Interior → Nps Conops Strategic DOI

ContactsNo contacts available

OfficeN/A

Organization / Agency

Department Of The Interior → Nps Conops Strategic DOI

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Office AddressN/A

ContactsNo contact information available

Full Description

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Performs rock scaling for prime contractors on National Park Service (NPS) tunnel projects at the Allegheny Portage Railroad Historic Site. Inspects tunnel crown and walls to remove loose or unstable rock while excluding keystone blocks or critical supporting rock. Utilizes man lifts for crown access. Delivers 3,528 square feet of scaled and stabilized rock surface.

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