HomeMy WebLinkAbout8.2 Parkway/Persimmon CIP CITY CLERK
AGENDA STATEMENT
CITY COUNCIL MEETING DATE: April 6, 2004
SUBJECT: Establishment of New Capital Improvement Project (CIP) - Central
Parkway/Persimmon Drive Intersection Safety Improvements
Report Prepared by: Melissa Morton, Public Works Director
ATTACHMENTS: 1) Detail of Project Improvement
2) Budget Change Form
RECOMMENDATION: 1) Establish a new Capital Improvement Project - Central
Parkway/Persimmon Drive Intersection Safety Improvements
~ /~~ 2) Approve budget change in the amount of $15,000 for design
of the project in Fiscal Year 2003-2004
FINANCIAL STATEMENT: It is estimated that the total cost to improve the intersection design at
Central Parkway/Persimmon Drive is $80,000, including $15,000 in
design cost. Funds required for design of this improvement project
are not included in this fiscal year's budget. The project is part of
the ultimate improvements funded by the Eastern Dublin Traffic
Impact Fee (TIF). Staff proposes that Council appropriate $15,000
from Category 1 Eastern Dublin T]~ funds to fund the design of this
new CIP project this fiscal year with construction of improvements
to be included in the 2004-2005 Fiscal Year Capital Budget.
DESCRIPTION: In response to a concern brought forward by a resident as it relates to
the sight distance when turning left from eastbound Central Parkway onto Persimmon Drive in Eastern
Dublin, Staff investigated the site and noted that as drivers traveling eastbound on Central Parkway
attempt to turn left onto Persimmon Drive from the existing left-turn pocket, the railing on the inside of
the Tassajara Creek bridge for westbound Central Parkway is partially blocking sight distance of
oncoming westbound traffic over the bridge. When Central Parkway was constructed based on the interim
two-lane configuration, this left mm pocket was situated further to the south from its ultimate location to
match the interim conditions.
The ultimate design of Central parkway used a four-lane configuration, but was constructed with two
lanes in the interim. As part of the two-lane interim conditions, the Tassajara Creek bridge on Central
Parkway was constructed in the form of two separate bridges to match the alignment of the two outside
interim lanes on Central Parkway. The left turn lane improvements were actually constructed first, and
COPIES TO: Mr. Wilman Woo
ITEM NO. ~
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the bridge was constructed in a separate contract, later. Support columns were installed between the two
bridges in the event a middle bridge is built in the future to close the gap between the two bridges to
accommodate the widening of Central Parkway to its ultimate four-lane configuration, if and when the
necessity arises. However, the inside railing for the westbound interim bridge has created sight distance
limitations. If Central Parkway is widened in the future to its ultimate four-lane configuration, the inside
railings for the two interim bridges will eventually be eliminated by combining the two bridges into one
bridge.
On a temporary basis until the median improvements have been completed, signs will be placed in the
median to caution motorists to exercise caution when making the left turn movement. For the purpose of
enhancing traffic safety for the interim conditions, Staff has determined that the sight distance associated
with the eastbound left-turn movement can be improved by relocating the left-tm pocket to its ultimate
location, which is 8 feet to the north from its current location (shown in Attachment 1). The improvement
would also include extending the median island 12 feet to the east to further enhance sight distance and
improve overall intersection geometrics.
The cost of this improvement is estimated at $80,000, including $15,000 in design costs. Since this
project would involve moving a travel lane to its ultimate location, as specified in the Eastern Dublin
Traffic Impact Fee (TIF) program, the project would be eligible for funding from Category 1 TIF funds.
The projected balance of the Category 1 TIF fees is sufficient to cover the design costs ($15,000) in Fiscal
Year 2003-2004 and construction cost ($65,000) in Fiscal Year 2004-2005.
Staff recommends that the City Council establish a new Capital Improvement Project - Central
Parkway/Persimmon Drive Safety Improvements, and approve a budget change in the amount of $15,000
for design of this project in Fiscal Year 2003-2004.
CITY OF DUBLIN
BUDGET CHANGE FORM
CHANGE FORM #
New Appropriations (City Council Approval Required): Budget Transfers: -~. -
__X__ From Unappropriated Reserves From Budgeted Contingent Reserve (1080-799.000)
Within Same DePartment Activity
From New Revenues Between Departments (City Council Approval Required)
Other
Name: Name: Central Parkway/Persimmon Drive $15,000
Intersection Improvements
(Expense)
Account #:
Account #: 300-96405-740-078
Name: Name:
Account #: Account #:.
Name: Name:
Account #: Account #:
Name: Name:
Account #: Account #:
Fin Mgr/ASD: 'V~_~e_ ,.~. ~/x__.. Date: '2~ 12. c~/O~
Signature
REASON FOR BUDGET CHANGE ENTRY:
To enhance the sight distance for the left-turn movement from Eastbound Central Parkway onto Persimmon
Drive.
City Manager: Date: Signature
Mayor: Date: Signature
Posted By: Date:
Signature
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