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UPPER SLIDE RAVINE WORKSHOP City of Grass Valley September 29, 2009.

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Presentation on theme: "UPPER SLIDE RAVINE WORKSHOP City of Grass Valley September 29, 2009."— Presentation transcript:

1 UPPER SLIDE RAVINE WORKSHOP City of Grass Valley September 29, 2009

2 Agenda Upper Slide Ravine Infrastructure Study Workshop I. Welcome & Introductions II. Review of State Grant and What It Can Do III. Results of Preliminary Engineering Study IV. Question and Comment Period

3 Upper Slide Ravine Infrastructure Study Workshop Introductions City Staff: Tony Clarabut, Fire Chief Joe C. Heckel, Community Development Director Tim Kiser, Public Works Director/City Engineer Tom Last, Planning Director Jeri Amendola, Housing/Econ Development Specialist TLA Consultant Team Terry Lowell, President, TLA Engineering & Planning Keone Kauo, P.E., TLA Engineering & Planning

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5 Upper Slide Ravine Infrastructure Study Workshop II. Review of State Grant and What It Can Do a.Why a Grant for this Area? -Obtained funds based on needs of area and desire for City services by residents b.Amount and Time Frame of Grant Funds - Approx. $400,000 for const. Start by June 2010 c. Review of Study Area and Priorities - Identify priorities and base infrastructure d.Review Work Effort by TLA (with focus on improving public safety) - Identify and engineer baseline improvements

6 List of Immediate Priorities and Challenges Priorities Water / Fire Protection. Upgrade water system to improve fire flow and add hydrantsWater / Fire Protection. Upgrade water system to improve fire flow and add hydrants Storm Drainage.Extend storm drainage system to minimize street drainage problems and floodingStorm Drainage.Extend storm drainage system to minimize street drainage problems and flooding Wastewater. Extend sewer service to unserved area.Wastewater. Extend sewer service to unserved area. Road Improvements. Improve for emergency accessRoad Improvements. Improve for emergency accessChallenges Funding limits: what can be accomplished in short-termFunding limits: what can be accomplished in short-term Road repair required with underground utilitiesRoad repair required with underground utilities Need to improve emergency access into area – Involves discussion with adjacent neighborhoodsNeed to improve emergency access into area – Involves discussion with adjacent neighborhoods

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8 Upper Slide Ravine Infrastructure Study Workshop III. Results of Preliminary Engineering a. Existing Conditions & Future Challenges b. Findings of Engineering Study c. Immediate and Future Priorities d. Recommended Alternative

9 Existing Sanitary Sewer Facilities Twelve (12) properties served by septic tank / leach fields in area Twelve (12) properties served by septic tank / leach fields in area Existing sewer main in Carol Drive and upper Doris Drive have adequate capacity to serve this area Existing sewer main in Carol Drive and upper Doris Drive have adequate capacity to serve this area

10 Existing Storm Drainage Facilities Area has minimal underground storm drainage system Area has minimal underground storm drainage system Area mostly drains by surface flow north to south Area mostly drains by surface flow north to south Centerville flume installed; will serve as connection for future storm drainage Centerville flume installed; will serve as connection for future storm drainage

11 Existing Water Facilities

12 Existing Street Conditions Primary access route, Doris and Carol Drives via N. Church Street Primary access route, Doris and Carol Drives via N. Church Street Approximately 2900’ unpaved road surface & 1300’ of paved surface Approximately 2900’ unpaved road surface & 1300’ of paved surface Road widths vary between 10 to 22 feet Road widths vary between 10 to 22 feet

13 Existing Street Conditions (cont.) Bernice DriveDoris Drive Hazel Lane June Drive Helen LaneCarol Drive

14 Proposed Phased Infrastructure Plan 1.Install new water main down Doris Drive to provide greater fire flow through area and add fire hydrants 2.Install an underground storm drainage system along with a water quality device to alleviate current flooding problems and street deterioration in the area. 3.Extend existing City sanitary sewer system to properties currently served by septic tank/leachfield systems on the southerly portion of the project site. 4.Repair existing street system following installation of underground utilities.

15 Proposed Water Facilities – On Site Installation of new water main down Doris Drive to provide greater fire flow through the project area and add fire hydrants. Installation of new water main down Doris Drive to provide greater fire flow through the project area and add fire hydrants.

16 Proposed Storm Drainage Facilities Installation of an underground storm drainage system and storm water treatment facility to alleviate current flooding problems and street deterioration. Installation of an underground storm drainage system and storm water treatment facility to alleviate current flooding problems and street deterioration.

17 Proposed Sanitary Sewer Facilities Extension of existing City sanitary sewer system to properties currently served by septic tank/leachfield systems in the southerly section. Extension of existing City sanitary sewer system to properties currently served by septic tank/leachfield systems in the southerly section.

18 Proposed Street Restoration Repair and stabilize roadway sections where underground utilities are to be installed. Repair and stabilize roadway sections where underground utilities are to be installed.

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20 Emergency Evacuation/Access Route Street system does not provide for adequate evacuation of residents and simultaneous access by emergency services Street system does not provide for adequate evacuation of residents and simultaneous access by emergency services Limited funding precludes addressing in current phase Limited funding precludes addressing in current phase Route shown is conceptual alignment of a primary evacuation corridor Route shown is conceptual alignment of a primary evacuation corridor

21 ACCESS AND CIRCULATION ISSUES - HOW TO ADDRESS? Access into & out of Study Area is a safety concernAccess into & out of Study Area is a safety concern Potential to create added cut-through trafficPotential to create added cut-through traffic Other adjacent neighborhoods will need to be involvedOther adjacent neighborhoods will need to be involved Need to determine road widths and obtain ROWNeed to determine road widths and obtain ROW Not sufficient funding available to fix road systemNot sufficient funding available to fix road system FUTURE STEPS Wish to separate discussion on emergency access options at separate workshop with other neighborhoodWish to separate discussion on emergency access options at separate workshop with other neighborhood Consultant is retained to facilitate workshop on alternative access options – within 45 daysConsultant is retained to facilitate workshop on alternative access options – within 45 days Access options to be tied to infrastructure plan for USRAccess options to be tied to infrastructure plan for USR City will pursue funding to phase in access imptsCity will pursue funding to phase in access impts

22 Upper Slide Ravine Infrastructure Study Workshop Questions and Comment Period a.Questions/Comments b.Next Steps -Finalize Infrastructure Plan -Present to City Council - November Conduct community meeting on access -Prepare engineering plans – bid process -Need contract executed by June 2010

23 Upper Slide Ravine Infrastructure Study Workshop Thank you for your participation! Questions on this program can be directed to: Jeri Amendola, Housing/Economic Specialist

24 UPPER SLIDE RAVINE WORKSHOP City of Grass Valley September 29, 2009


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