DATE: July 19, 2016
TO: Mayor and City Council
FROM: Director of Public Works
SUBJECT
Title
Runway 10R-28L Rehabilitation Project at Hayward Executive Airport: Award of Contract
End
RECOMMENDATION
Recommendation
That Council adopts the attached resolution (Attachment I) awarding the contract to DeSilva Gates Construction LP, in the amount of $1,731,543.50 for the Runway 10R-28L rehabilitation project; and authorizing the expenditure of $408,456.50 for contingencies, construction inspections, testing and administration.
Body
BACKGROUND
On April 19, 2016, Council approved the plans and specifications for the Runway 10R-28L Rehabilitation Project at the Hayward Executive Airport, and called for bids to be received on May 17, 2016.
DISCUSSION
Runway 10R-28L is primarily used by jet and turboprop aircraft and is the most critical runway for aircraft approaching the airport. As previously discussed at the Council Airport Committee meeting on January 22, 2015, rust resulting from the oxidation of iron minerals in the pavement aggregate is penetrating through the existing runway markings, thus reducing the contrast between the dark pavement and white paint markings. Additionally, the oxidation process, if left unabated, would result in the rock aggregates continuing to separate from the pavement surface, potentially causing damage to aircraft. A specialist from the airport’s consultant, AECOM, evaluated the runway and recommended that milling the existing pavement and applying a two-inch asphalt lift with a proper mix should alleviate the rust issue. It was determined there are no sealants or other chemical products on the market that can successfully address this issue as an alternative to removing the oxidized pavement layer and repaving the runway.
On May 17, 2016, four bids were received for the Runway 10R-28L Rehabilitation Project. DeSilva Gates Construction LP, of Dublin, California, submitted the low bid of $1,731,543.50, which is 33.1% below the engineer’s estimate of $2,590,000. The unit prices on pavement grinding, hot mix asphalt, and runway striping from the low bidder was lower than anticipated. Teichert Construction, of Roseville, California, submitted the second low bid of $2,249,585.00, which is 13.1% below the engineer’s estimate. The four bids ranged from $1,731,543.50 to $2,580,406.45 (see Attachment III).
This project is categorically exempt under Section 15301(c) of the California Environmental Quality Act Guidelines for the operation, repair, maintenance, or minor alteration of existing facilities.
FISCAL IMPACT
A key staff objective is to reduce the overall cost of capital projects through the use of grants from local, state or federal government. On June 16, 2016, staff was informed that the Federal Aviation Administration (FAA) authorized the award of contract to DeSilva Gates Construction LP, in the amount of $1,731,543.50 to resurface Runway 10R-28L. The FAA must authorize the award before City Council can award the contract. In addition to the grant from the FAA, Caltrans approved the amount of $440,000 for the project on June 6, 2016.
The City’s matching portion of the grant will be funded through available fund balance in the Airport Capital Fund of the Adopted FY17 Capital Improvement Program.
The estimated project costs are as follows:
The estimated funding is as follows:
PUBLIC CONTACT
The public was initially informed of the project and the potential FAA and Caltrans grants in a staff report dated January 22, 2015 to the Council Airport Committee (CAC). A public presentation on the project was made by staff and comments from tenants were also received. The Airport Manager subsequently formed an advisory group of airport tenants to provide feedback during the initial planning phase of the project, and meetings were held on May 7, 2015 and March 1, 2016. Pavement experts participated in those meetings and presented options to address the concerns expressed by airport tenants. The project was also the subject of additional staff reports and public presentations to the CAC on April 23, 2015 and October 22, 2015. The project was highlighted in airport newsletters dated August 2015 and April 2016. The newsletter is distributed to airport tenants and posted online. Construction updates will be included in future newsletter releases, email blasts, and on the airport website. If necessary, fliers with project updates will be issued to tenants to keep them abreast of the construction work.
NEXT STEPS
The estimated schedule is as follows:
Prepared by: Yaw Owusu, Assistant City Engineer
Staff contact
Recommended by: Morad Fakhrai, Director of Public Works
end
Approved by:
Fran David, City Manager
Attachments:
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Attachment I |
Resolution |
|
Attachment II |
Map of Project |
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Attachment III |
Bid Summary |