Interstate 405 Improvement Project

Background

2

Need for the Project

� The I-405 mainline GP lanes peak-period traffic demand exceeds available capacity;

� The I-405 mainline HOV lanes peak-period traffic demand exceeds available capacity;

� The I-405 mainline GP traffic lanes have operational and geometric deficiencies;

� The interchanges along I-405 within the study area have geometric, storage, and operational capacity deficiencies; and

� I-405 currently has limitations in detecting traffic incidents and providing rapid response and clearance due to lack of capacity and technological infrastructure

3

Purpose of the Project

� Reduce congestion; � Enhance operations; � Increase mobility, improve trip reliability, maximize

throughput, and optimize operations; and� Minimize environmental impacts and ROW

acquisition.

4

MIS Completed in 2006

5

PSR/PDS Completed in 2008

6

PA/ED Alternatives

7

Existing Condition

8

Rendering of I-405 looking northwest at Springdale St. overcrossing

9

Alternative 1 – Add 1 GP lane

10

Alternative 2 – Add 2 GP lanes

The project adds 1 general purpose and 1 express lane. The express lane, when combined with the existing carpool lane, creates the I-405 Express Lanes, a two-lane each direction express facility similar to the 91 Express Lanes.

Preferred Alternative (Alternative 3)

Caltrans PA Recommendation

� Alternative 3 Potential for a phased approach

� Phase 1 – OCTA delivers Project K (1 GP lane in each direction

from Euclid Street to I-605)

� Phase 2 – Caltrans delivers the additional median lane and

implements HOT lanes under a separate contract

Potential for a single project

12

Recent OCTA Board Actions

� December 8, 2014 Design-Build Cooperative Agreement for Phase 1

Continued

� February 9, 2015 Design-Build Cooperative Agreement for Phase 1 with

Caltrans betterment funding of $82 Million

Board directed staff to re-engage in Coop discussions with Caltrans and return to Board with option for OCTA to proceed as lead agency for the full implementation of the Caltrans Project preferred alternative

13

Significant Project Features

14

� One GP lane (and potentially one median lane) in each direction between Euclid Street and I-605

� 17 or 18 structure replacements (OCs) plus new and widened structures

� Interchange reconfigurations� Auxiliary lane improvements� Arterial improvements� Drainage improvements� Anticipated 5-year design-build contract duration� Construction cost ranges from approximately $0.9 – $1.2

Billion

Stakeholders

15

� Multiple City jurisdictions including Westminster, Fountain Valley, Huntington Beach, Garden Grove, Costa Mesa, and Seal Beach

� Involvement of over 40 separate utility owners� Multiple Orange County Flood Control facility impacts� Union Pacific Railroad� Army Corps of Engineers� US Navy� Caltrans oversight criteria in accordance with Assembly

Bill 401 and/or Streets and Highways Code 143 (construction inspection services)

Updated Environmental and D-B Procurement Milestones

16

Description Current Schedule

Caltrans PA Recommendation July 2014

Signed Final Environmental Document March 2015

Notice of Decision/Record of Decision May 2015

Issue D-B RFQ October 2014

Issue D-B Draft RFP TBD

Issue D-B RFP TBD

D-B Award TBD

D-B Notice to Proceed TBD

Design/Construction TBD

Upcoming OCTA Opportunities

17