ITEM 5. 3
CITY MANAGER' S REPORT
AUGUST 8, 2022 CITY COUNCIL REGULAR MEETING
ITEM: REVIEW AND CONSIDER OPTIONS FOR ROUNDABOUT
IMPROVEMENTS AT BROOKHURST BLVD AND GOLDEN
SPIKE TRAIL
RECOMMENDATION: Council to Consider Options for Roundabout Improvements at Brookhurst Blvd and Golden Spike
Trail
SUMMARY:
On December 13, 2021, City Council requested staff to evaluate improvements at the Towne Centre Drive / McKee Boulevard and Brookhurst Boulevard / Golden Spike Trail roundabouts located near the Mossdale Elementary School. On January 10, 2022, staff presented multiple improvement options for which Council elected the installation of splitter islands with the future consideration of Rectangular Rapid Flashing Beacons RRFBs).
On May 16, 2022, City Council created Capital Improvement Project ( CIP) PS 22- 41 Mossdale Roundabouts Improvements ( Project) and awarded a construction contract to FBD Vanguard Construction, Inc. ( FBD Vanguard) for improvements to both roundabouts.
The Project consisted of constructing new splitter islands, installing new curb ramps, resurfacing both roundabout intersections, restriping all crosswalks and enhancing existing signage. The Project included the restriction of some on- street parking in order to construct improvements and increase the visibility of pedestrians at the Brookhurst Boulevard and Golden Spike Trail roundabout.
The following alternative design options are being presented to Council for review and consideration of improvements to Brookhurst Boulevard and Golden Spike Trail roundabout:
Option 1 — Reduce Central Island
Approximate Cost $ 400, 000+ CIP PS 22- 41 Original Cost) Reduce central island
Construct splitter islands and apron
Extend curb, gutter, and landscape
Install new crosswalks and ADA ramps
Reduce pedestrian crossing distance
Allow on- street parking
CITY MANAGER' S REPORT PAGE 2
AUGUST 8, 2022 CITY COUNCIL REGULAR MEETING
REVIEW AND CONSIDER OPTIONS FOR ROUNDABOUT IMPROVEMENTS Option 2 — Proceed with Original Design
within CIP PS 22- 41 Contract Cost)
Central island to remain
Construct splitter islands and apron
Extend curb returns
Setback crosswalks from the roundabout
Restrict on- street parking near crosswalks
Option 3 — Install Delineators
Approximate Cost $ 10, 000)
Central island to remain
Restripe splitter islands and rotary path
Install delineators
Crosswalk locations to remain
Allow on- street parking adjacent to crosswalks
Option 4 — Convert to All- Way Stop Intersection
Approximate Cost $ 1, 500, 000)
Remove central island
Reconstruct curb, gutter, and sidewalk at all corners
Regrade Intersection
Remove and replace underground utilities
Install new crosswalks and ADA ramps
Allow on- street parking
Staff recommends that Council considers Option 1 as it provides enhanced pedestrian safety and allows for a modern roundabout design while maintaining existing on- street parking.
If Options 1 or 4 are selected, staff will revise construction documents, and return to Council for approval of related budget amendment. Option 2 includes no fiscal impact.
Funds for Option 3 will be transferred from CIP PS 22- 16 Traffic Calming Measures.
BACKGROUND:
On December 13, 2021, City Council requested staff to evaluate improvements at Towne Centre Drive / McKee Boulevard and Brookhurst Boulevard / Golden Spike Trail roundabouts located near the Mossdale Elementary School. On January 10, 2022, staff presented multiple improvement options for which Council elected the installation of splitter islands with the future consideration of Rectangular Rapid Flashing Beacons RRFBs).
On May 16, 2022, City Council created Capital Improvement Project ( CIP) PS 22- 41 Mossdale Roundabouts Improvements ( Project) and awarded a construction contract to FBD. Vanguard Construction, Inc. ( FBD Vanguard) for improvements to both roundabouts.
CITY MANAGER' S REPORT PAGE 3
AUGUST 8, 2022 CITY COUNCIL REGULAR MEETING
REVIEW AND CONSIDER OPTIONS FOR ROUNDABOUT IMPROVEMENTS The Project consisted of constructing new splitter islands, installing new curb ramps, resurfacing both roundabout intersections, restriping all crosswalks and enhancing existing signage. The Project included the restriction of some on- street parking in order to construct improvements and increase the visibility of pedestrians at the Brookhurst Boulevard and Golden Spike Trail roundabout.
The following alternative design options are being presented to Council for review and consideration of improvements to Brookhurst Boulevard and Golden Spike Trail roundabout:
Option 1 — Reduce Central Island
Approximate Cost $ 400, 000+ CIP PS 22- 41 Original Cost) Reduce central island
Construct splitter islands and apron
Extend curb, gutter, and landscape
Install new crosswalks and ADA ramps
Reduce pedestrian crossing distance
Allow on- street parking
Option 2 — Proceed with Original Design
within CIP PS 22- 41 Contract Cost)
Central island to remain
Construct splitter islands and apron
Extend curb returns
Setback crosswalks from the roundabout
Restrict on- street parking near crosswalks
Option 3 — Install Delineators
Approximate Cost $ 10, 000)
Central island to remain
Restripe splitter islands and rotary path
Install delineators
Crosswalk locations to remain
Allow on- street parking adjacent to crosswalks
Option 4 — Convert to All- Way Stop Intersection
Approximate Cost $ 1, 500, 000)
Remove central island
Reconstruct curb, gutter, and sidewalk at all corners
Regrade Intersection
Remove and replace underground utilities
Install new crosswalks and ADA ramps
Allow on- street parking
CITY MANAGER' S REPORT PAGE 4
AUGUST 8, 2022 CITY COUNCIL REGULAR MEETING
REVIEW AND CONSIDER OPTIONS FOR ROUNDABOUT IMPROVEMENTS REASON FOR RECOMMENDATION:
Currently, CIP PS 22- 41 is under construction with improvements being installed at Towne Centre Drive and McKee Boulevard. Staff is requesting that Council review and consider the design options presented above so that FBD Vanguard can construct improvements at Brookhurst Boulevard and Golden Spike Trail roundabout.
StafF recommends that Council consider Option 1 as it provides enhanced pedestrian safety and allows for a modern roundabout design while maintaining existing onstreet parking.
FISCAL IMPACT:
The initial construction contract with FBD Vanguard is for $ 971, 442 plus a 10% construction contingency in the amount of $ 97, 144 for a total cost not to exceed 1, 068, 600.
Staff estimates the approximate construction costs below for the four options presented to Council:
Option 1 - Reduce Central Island CIP PS 22- 41 Contract +$ 400, 000 Option 2 - Proceed with Original CIP PS 22- 41 Contract Design
Option 3 - Install Delineators 10, 000
Option 4 - Convert to All- Way Stop
Intersection CIP PS 22- 41 Contract + $ 1. 5M
If Options 1 or 4 are selected, staff will revise construction documents, and return to Council for approval of related budget amendment. Option 2 includes no fiscal impact.
Funds for Option 3 will be transferred from CIP PS 22- 16 Traffic Calming Measures.
ATTACH M ENTS:
A. Exhibit Option 1 - Reduce Central Island
B. Exhibit Option 2 - Proceed with Original Design
C. Exhibit Option 3 - Install Delineators
D. Exhibit Option 4 - Convert to All Way Stop Intersection CITY MANAGER' S REPORT PAGE 5
AUGUST 8, 2022 CITY COUNCIL REGU} R MEETING
REVIEW AND CONSIDER OPTIONS FO-R ROUNDABOUT IMPROVEMENTS APPROVALS:
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Ang arca Date
Assistant Engineer
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Brad T or Date
City Engineer
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Cari Ja e' Date
Finance Di ector
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Michael King Date
Assistant City Manager
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Salvador Navarrete Date
City Attorney
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St en J. Salvatore Date
City Manager
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