2019_0802_Reach_B_Presolicitation_Notice.pdf

Natomas Basin Reach B Levee Improvement Construction Project

The Government anticipates issuing an Invitation for Bids (IFB) with the intent of awarding one

Firm-Fixed Price construction contract for the Natomas Basin Reach B Levee Improvement

Construction Project to the lowest-priced responsible bidder whose bid conforms (i.e., is responsive) to the solicitation requirements.

Reach B Project Description:

Reach B begins just south of the intersection of Garden Highway and Power Line Road

(Approximate STA 650+50) and extends downstream to just south of Farm Road (Approximate

STA 772+50). See area map below.

Levee improvements for Reach B include:

A landside adjacent levee will be constructed to match existing top of levee (TOL) elevations in the first year of construction.

Settlement is expected to occur during the initial construction period with additional settlement over the following year.

o Settlement that occurs after the first year of construction shall be reconciled during the second year of construction and repair of settlement of asphalt (i.e., paving) along the landside edge Garden Highway will also be completed during this time.

Seepage berms will also be constructed along Reach B.

Pumping Plant (PP) 3 will undergo extensive modifications o Four new pumps will be installed along with the associated electrical improvements. Each new pump will have its own separate outfall pipe.

o A new outfall for each of the four pipes will include a headwall, flap gates, siphon breaker, positive closure vault and piping.

o The sump will be improved to include reinforced concrete baffle walls to separate each pump station.

o Construction in this area will also include relief wells and lining of the existing canal in proximity to PP3.

Construction of the new outfall pipes will require raising the Garden Highway from STA 675+17.44 to 678+50. Construction activities will involve temporary, partial and full shutdowns of Garden Highway.

In accordance with the DFAR 236.204, the magnitude disclosure of this construction project is between $25M and $100M.

The applicable FSC Code: Y1LC, Construction of Tunnels and Subsurface Structures and North

American Industry Classification System Code (NAICS): 237990 Other Heavy and Civil

Engineering Construction. The small business size standard is $36.5 million.

The solicitation (IFB) is estimated to be issued on or about 15 August 2019 with bids due approximately 30 calendar days later.

This acquisition will proceed as an unrestricted, full and open competition.

The site visit date, time and location will be identified in the solicitation.

BE ADVISED THAT THIS PROJECT MAY BE DELAYED, CANCELLED OR REVISED AT

ANY TIME DURING THE PRE-SOLICITATION, SOLICITATION, SELECTION,

EVALUATION, NEGOTIATION AND/OR FINAL AWARD PROCESS.

Prospective bidders should stay posted to this notice for updates.