newell road san francisquito creek ... - city of palo alto, ca

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Newell RoadSan Francisquito Creek Bridge

Replacement Project

Community Meeting

February 27th, 2014

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• Welcome and IntroductionsJim Keene, Palo Alto City ManagerKamal Fallaha, East Palo Alto City Engineer

• Bridge Alternatives and Screening CriteriaBrad Eggleston, Palo Alto Assistant Public Works Director

• Alternatives Screening and Traffic AnalysisBrad Eggleston, Palo Alto Assistant Public Works Director

• Questions and Comments

Meeting Agenda

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Newell Road / San Francisquito CreekBridge Location

Newell Road Bridge

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Existing Bridge atNewell Road/San Francisquito Creek

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Project Background• San Francisquito Creek Joint Powers Authority (JPA)

identified Newell Road bridge replacement as a necessary element of a comprehensive San Francisquito Creek flood protection strategy

• JPA identified Caltrans Highway Bridge Program as a potential project funding source

• City of Palo Alto (Caltrans-designated responsible agency) eligible to apply for grant funds

• Palo Alto secures project funding (88.5% Caltrans grant, 11.5% Santa Clara Valley Water District)

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• City to conduct an EIR process that will include:- Preliminary design of alternatives- Identify and study potential project impacts (visual,

wildlife, trees, noise, traffic) and related mitigations

• Prior to beginning EIR, need to eliminate alternatives that are not feasible- Control cost and avoid delays

• Criteria for feasibility “screening” are based on flood control and traffic impacts

Project Status

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October 17th Community Meeting

• Presentation of eight conceptual project alternatives

• Introduction of screening criteria to identify feasible alternatives to be analyzed in the Project EIR

February 27th Community Meeting

• Presentation of Alternatives Screening Analysis findings

Next Step• Begin formal Newell Road Bridge EIR process• Coordinate with JPA program-level EIR

Project Status

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Bridge Design Alternatives1. No Project Alternative (Keep Existing Bridge)2. Removal of Existing Bridge3. Bicycle/Pedestrian Bridge4. Bicycle/Pedestrian Bridge w/ Emergency Access (One-Lane

Vehicular Capacity)5. Bridge w/bi-directional one lane traffic w/ signal control

Two-Lane Vehicle Bridge Options w/Bike-Ped Access:

6. Along Existing Alignment7. With Partial Realignment of Newell Road8. With Full Realignment of Newell Road

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Bridge Alternatives Screening Criteria1. Will the project alternative accommodate the 100-year (1%)

storm flow of San Francisquito Creek? (Yes or No)

2. Will the project alternative negatively impact the existing traffic Level of Service (LOS) or vehicular speeds on Newell Road or nearby streets and intersections? (Yes or No)

3. Will the project alternative increase the Traffic Infusion on Residential Environment (TIRE) Index on any street by 0.1 or greater? (Yes or No)

4. How does the project alternative accommodate multi-model traffic demand as compared to other project alternatives? (Qualitative)

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Traffic Analysis• Based on May 2013 traffic counts and traffic projections for

future years 2020 and 2035

• Traffic Level of Service (LOS) analyzed at 14 intersections

• Traffic Infusion on Residential Environments (TIRE) analysis performed on 13 neighborhood street segments

• Eight project alternatives evaluated for LOS and TIRE impacts

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Traffic AnalysisIntersection Level of Service (LOS)

LOS is a qualitative measure of vehicle delay at an intersection during peak hours.

LOS is a rated on a Grading Scale: A to FA Free Flow ConditionsB Short Traffic DelaysC Average Traffic DelaysD Long Traffic DelaysE Very Long Traffic DelaysF Extreme/Unacceptable Traffic Delays

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Traffic Analysis14 Study Intersections for LOS

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Traffic Analysis

Traffic Infusion on Residential Environments (TIRE)

TIRE is a quantitative tool used to measuring community perception regarding neighborhood "livability“ based on projected traffic demand.

TIRE measures project increases in Average Daily Traffic (ADT) to quantify noticeable traffic growth:0.1 Index Change or Greater is Noticeable and Considered an Impact to the Neighborhood0.1 Represents a 20 – 30% increase in ADT

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Traffic AnalysisTIRE Analysis on 13 Roadway Segments

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Alternatives Analysis Findings

Alternative Description100-Year

Storm Protection?

LOSImpact?

TIRE Impact?Multi-Model

Access Benefits?Advance or Eliminate?

1 No Build (Keep Existing Bridge) No No No Advance*

2 Remove Existing Bridge Yes Yes Yes Eliminate

3 Bicycle/Pedestrian Bridge Yes Yes Yes Eliminate

4Bicycle/Pedestrian Bridge with Emergency Access

Yes Yes Yes Eliminate

5One-Lane Bridge with Bi-Directional Traffic

Yes Yes No Advance

6Two-Lane Bridge on Existing Alignment

Yes No No Advance

7Two-Lane Bridge with Partial Realignment of Newell Road

Yes No No Advance

8Two-Lane Bridge with Full Realignment of Newell Road

Yes No Yes Eliminate

*- The “No build” option always advances to the EIR process.

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Alt 1: Keep Existing BridgeAlternatives Analysis Results

Accommodate 100-Year Storm?Affect Traffic Level of Service (LOS)?

Affect TIRE Index?Accommodate multi-modal traffic?

Carry forward to EIR?

NoNoNo

Yes*

*”No Build” Alternative is Always Carried Forward in an EIR.

Alt 2: Remove Existing BridgeAlternatives Analysis Results

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YesYes

Yes

No starsNo

Alt 2: Remove Existing BridgeAlternatives Analysis Results

Accommodate 100-Year Storm?Affect Traffic Level of Service (LOS)?University/E Crescent: PM LOS E to LOS F

University/Center: PM LOS B to LOS C

Affect TIRE Index?E Crescent – University to Southwood

Center – University to HamiltonHamilton – Center to Newell

Accommodate multi-modal traffic?Carry forward to EIR?

Alt 3: Bicycle/Pedestrian BridgeAlternatives Analysis Results

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Alt 3: Bicycle/Pedestrian BridgeAlternatives Analysis Results






YesYes

Yes

No

Alt 4: Bicycle/Ped Bridge w/Emergency Vehicle AccessAlternatives Analysis Results

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Alt 4: Bicycle/Ped Bridge w/ Emergency Vehicle AccessAlternatives Analysis Results






YesYes

Yes

No

Alt 5: One-Lane Bridge w/Signal ControlAlternatives Analysis Results

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Alt 5: One-Lane Bridge w/Signal ControlAlternatives Analysis Results


Newell/Woodland: LOS A to LOS CNewell/Edgewood: LOS A to LOS C



YesYes

No

Yes

Alt 6: Two-Lane Bridge – Existing AlignmentAlternatives Analysis Results

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Alt 6: Two-Lane Bridge –Existing AlignmentAlternatives Analysis Results




YesNoNo

Yes

Alt 7: Two-Lane Bridge – Partial RealignmentAlternatives Analysis Results

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Alt 7: Two-Lane Bridge – Partial RealignmentAlternatives Analysis Results




YesNoNo

Yes

Alt 8: Two-Lane Bridge - Full RealignmentAlternatives Analysis Results

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Alt 8: Two-Lane Bridge - Full RealignmentAlternatives Analysis Results


Affect TIRE Index?Woodland – Cooley to Clarke


YesNoYes

No

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Alternatives Analysis Findings

Alternative Description100-Year

Storm Protection?

LOSImpact?

TIRE Impact?Multi-Model

Access Benefits?Advance or Eliminate?

1 No Build (Keep Existing Bridge) No No No Advance*

2 Remove Existing Bridge Yes Yes Yes Eliminate

3 Bicycle/Pedestrian Bridge Yes Yes Yes Eliminate

4Bicycle/Pedestrian Bridge with Emergency Access

Yes Yes Yes Eliminate

5One-Lane Bridge with Bi-Directional Traffic

Yes Yes No Advance

6Two-Lane Bridge on Existing Alignment

Yes No No Advance

7Two-Lane Bridge with Partial Realignment of Newell Road

Yes No No Advance

8Two-Lane Bridge with Full Realignment of Newell Road

Yes No Yes Eliminate

*- The “No build” option always advances to the EIR process.

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Next Steps• Specific design and height of replacement Newell Road bridge is

dependent upon currently undetermined future San FrancisquitoCreek water surface elevation during 100-year storm event

– Dependent upon which upstream flood protection measures (e.g. upstream detention, bypass culvert, floodwalls, etc.) are selected for implementation

– Will consider additional information generated during the JPA’s program-level EIR and public review process over the next few months

• The Newell Road Bridge Environmental Impact Report (EIR) may need to consider multiple bridge height scenarios based on a differing creek flow rates

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• Conceptual design of screened feasible bridge replacement alternatives (may include more than one creek water surface elevation)

• Preparation of project-level Environmental Impact Report (EIR) to study screened feasible alternatives for Newell Road Bridge replacement and determine preferred alternative

• Final design of preferred bridge replacement alternative

• Construction of replacement bridge

Next Steps

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Project Schedule

March 2014 Start EIR PreparationSpring 2015 Final EIR CertificationSpring 2015 Begin Plans, Specs. & Estimate (PS&E)Winter 2015 Complete PS&EWinter 2015/ Secure Regulatory Agency PermitsSpring 2016Spring 2016 Advertise Project for BidsSummer/ Construct ProjectFall 2016

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Wrap-Up

Project alternatives for study in project EIR:

• Alt 5: One-Lane Bridge with Bi-Directional Traffic

• Alt 6: Two-Lane Bridge along Existing Alignment

• Alt 7: Partially-Realigned Two-Lane Bridge

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Community

Questions

and

Comments

newell road san francisquito creek ... - city of palo alto, ca

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