Mouth of the Columbia River Sand Island Pile Dikes Repair   5

This is a PRESOLICITATION NOTICE for the Mouth of the Columbia River Sand Island Pile Dikes Repair project.

Solicitation Number: W9127N22B0001

NAICS Code: 237990

PSC: Z1KZ

Project Description:

The US Army Corps of Engineers, Portland District, has a requirement for the repairing and/or replacing Columbia River Pile Dikes near the mouth of the Columbia River. The work includes repairing and replacing Columbia River Pile Dikes 4.01, 4.47, 5.15, and 6.37 and incidental related work. The work site is located in Clatsop County, Oregon at River Miles 4.01, 4.47, 5.15, and 6.37, with a section of Pile Dike 6.37 crossing in to Pacific County, Washington. The Pile Dikes are adjacent to West Sand Island and East Sand Island, near the mouth of the Columbia River. Contractor access to the work site will be from Contractor's vessel(s) by way of the Columbia River. Repairs include four components: rock shore connections, enrockment repair and enhancement, offset pile dike structures, and rock aprons.

a. Rock shore connections include the addition of approximately 5 to 6 feet of enrockment thickness along the existing shore connections to provide transition from the pile dike enrockments to the Sand Island shoreline revetment. This component is for Pile Dikes 4.01, 4.47, and 5.15. Pile 6.37 does not have a shore connection. This component includes rock placement on approximately 1,000 feet of shoreline revetment between Pile Dike 4.47 and 5.15.

b. Enrockment repair and enhancement retain all existing enrockment with new rock placed in eroded/subsided crest areas to raise the crest to uniform elevations. Enrockment enhancements replace part of the original timber-pile dike structures in place of driving new piles.

c. Offset pile dike structures include installation of offset structural pile dike systems. A total of 602 piles are driven on a portion of original timber-pile dike rock riprap structures. Piles are steel pipe piles, 24-inch diameter, and pile lengths varying from varying from 65 feet to 77 feet. Piles driven on Pile Dike 4.01 require 3/4-inch wall thickness, and piles driven on Pile Dikes 4.47, 5.15, and 6.37 require 1/2-inch wall thickness. Open-end or closed-end pile shoes will be used for all piles. Impact and vibratory hammer can be used.

d. Rock Aprons are placed as rock fill at the new offset pile dike structures to prevent scour.

Contract duration is estimated at two (2) years. The estimated magnitude of construction for this project is between $25,000,000 and $100,000,000.

The solicitation is anticipated to be posted on SAM.gov on or around July 29, 2022. Prospective offerors must first be registered in the System for Award Management (https://sam.gov/). After completing the SAM registration, interested contractors and their subcontractors must then register in the aforementioned website in order to obtain solicitation documents, plans and/or specifications for this solicitation. It is the contractor's responsibility to monitor SAM.gov for any amendments.

Contracting Office Address:

US Army Corps of Engineers, Portland District
Attn: CECT-NWP-C
333 SW 1st Avenue
Portland, OR 97204