Date post: | 10-Feb-2018 |
Category: |
Documents |
Upload: | nguyenkhanh |
View: | 216 times |
Download: | 1 times |
Raleigh’s Strategic Approach
to Stormwater Management
ACEC of NC & PENC
Joint Environmental Committee
August 24, 2017
Today’s Agenda
Overview of Raleigh’s Stormwater Program Key Strategic Initiatives Making Strategy Operational
Integrated Stormwater Project Prioritization Model Q&A Session
2
Stormwater Services Overview
3
Mission: Manage stormwater to preserve and protect life, support healthy natural resources, and complement sustainable growth for the vibrant Raleigh community.
Stormwater Infrastructure (CIP) Program
Drainage Assistance Program
Water Quality
Floodplain Management
Stormwater System Maintenance
Asset Management
Development Review & Inspection
Watershed Planning
Raleigh Stormwater Team
4
Enhanced organizational resources that align with the community’s needs and desired level of service.
The Operating Budget
5
FY18 Total Proposed Operating Budget:
$25,863,738
Business Services $521K
2%
Drainage Assistance $747K
3% Infrastructure Projects Management
$1M 4%
Water Quality and Mapping Program
$1M 4%
Development Plan Review and Inspections
$1.9M 7%
Program Management and Planning
$3M 12%
Indirect Cost $3M 12% Drainage System Maintenance
$5.5M 21%
Stormwater CIP $9.1M
35%
Note: K=Thousand M=Million
Key Strategic Initiatives
6
Major policy and project delivery improvements to the Drainage Assistance Program.
0
5
10
15
20
25
30
FY15 FY16 FY17 PROJ FY18 PROJNumber ofProjects
17 projects valuing $1.5 million completed in FY17
27 projects at $2.7 million under construction in FY18
18 projects valuing $720,491 completed in FY15
15 projects valuing $611,717 completed in FY16
Key Strategic Initiatives
7
Flood hazard mitigation efforts along Capital Boulevard at Milner Inn and Capital Inn.
Before & After at Milner Inn
Key Strategic Initiatives
8
Capital Inn Demolition – November 2016
To meet FEMA floodplain
standards, buildings on this property were demolished to
address ongoing flooding in this area. Green space will take its place to create a more natural condition
that reduces flooding.
This project is part of Raleigh’s larger revitalization of Capital
Boulevard.
Key Strategic Initiatives
9
Development of stormwater-specific Asset Management and Watershed Planning programs
Green Stormwater Infrastructure development and implementation
Increased ability to regulate stormwater at Single-Family Residential properties (TC-2-16)
Development and implementation of an Integrated Stormwater Project Prioritization Model
Growing Capital Improvement Program to provide sustainable stormwater infrastructure
Making Strategy Operational
10
An Overview of the Integrated Stormwater
Project Prioritization Model
11 Reducing flooding hazards in streets
Making Strategy Operational
12 Reducing structural flooding hazards
Making Strategy Operational
13
Reducing non-structural flooding hazards [limited access]
Making Strategy Operational
14
Enhancing impaired or degraded streams
Making Strategy Operational
15
Repairing aging and undersized infrastructure
Making Strategy Operational
16 Repairing failing infrastructure
Making Strategy Operational
17
Addressing drainage concerns affecting private properties
Making Strategy Operational
18
Using Green Stormwater Infrastructure practices
Emerging Needs and Opportunities
19
The Prioritization Model
20
The Prioritization Model
21
Scoring Metrics – Flood Hazard Reduction
7 5 3
22
Scoring Metrics – Asset Management
8 5
7
10
23
Scores & Decision Making Process
Project ID
Number Project Name
General
Category
of ProjectPrimary Type of
Project Sub-Watershed
Council
District
Total
Project
Score
(TPS)
Safety
Criticality
Score
(SCS)
Mission
Criticality
Score
(MCS) Lead Group for Project
Study and/or
Engineering
Design Cost Construction Cost Total Project CostWatershed Area
Served by Project Cost / Area Served
Number of
Parcels Directly
Impacted
Cost / Parcel(s) Directly
Impacted
Annual TN Pollutant
Load Reduced Cost / TN Reduced
Annual TSS Pollutant
Load Reduced Cost / TSS Reduced Cost-Score Index
(0 - 100) (0 - 100) (0 - 100) ($) ($) ($) (in Acres) ($/Acre) (# of parcels) ($/# of parcels) (lbs TN/yr) ($/lbs TN/yr) (lbs TSS/yr) ($/lbs TSS/yr) ($/TPS)
210-2015-0001 Northshore Lake/Spillway Rehab/Wetland CIP Integrated Marsh Creek B 73.39 100.00 91.74 Infrastructure (210) $375,000 $4,091,722 $4,466,722 850.0 5,255 26 171,797 811 5,508 205,304 22 60,861
Project ID
Number Project Name
General
Category
of ProjectPrimary Type of
Project Sub-Watershed
Council
District
Total
Project
Score
(TPS)
Safety
Criticality
Score
(SCS)
Mission
Criticality
Score
(MCS)
(0 - 100) (0 - 100) (0 - 100)
210-2015-0001 Northshore Lake/Spillway Rehab/Wetland CIP Integrated Marsh Creek B 73.39 100.00 91.74
24
Scores & Decision Making Process
Project ID
Number Project Name
General
Category
of ProjectPrimary Type of
Project Sub-Watershed
Council
District
Total
Project
Score
(TPS)
Safety
Criticality
Score
(SCS)
Mission
Criticality
Score
(MCS) Lead Group for Project
Study and/or
Engineering
Design Cost Construction Cost Total Project CostWatershed Area
Served by Project Cost / Area Served
Number of
Parcels Directly
Impacted
Cost / Parcel(s) Directly
Impacted
Annual TN Pollutant
Load Reduced Cost / TN Reduced
Annual TSS Pollutant
Load Reduced Cost / TSS Reduced Cost-Score Index
(0 - 100) (0 - 100) (0 - 100) ($) ($) ($) (in Acres) ($/Acre) (# of parcels) ($/# of parcels) (lbs TN/yr) ($/lbs TN/yr) (lbs TSS/yr) ($/lbs TSS/yr) ($/TPS)
210-2015-0001 Northshore Lake/Spillway Rehab/Wetland CIP Integrated Marsh Creek B 73.39 100.00 91.74 Infrastructure (210) $375,000 $4,091,722 $4,466,722 850.0 5,255 26 171,797 811 5,508 205,304 22 60,861
Cost / Area Served
Number of
Parcels Directly
Impacted
Cost / Parcel(s) Directly
Impacted
Annual TN Pollutant
Load Reduced Cost / TN Reduced
Annual TSS Pollutant
Load Reduced Cost / TSS Reduced Cost-Score Index
($/Acre) (# of parcels) ($/# of parcels) (lbs TN/yr) ($/lbs TN/yr) (lbs TSS/yr) ($/lbs TSS/yr) ($/TPS)
5,255 26 171,797 811 5,508 205,304 22 60,861
Model Implementation
1. Each section team uses the model to help envision, identify, and evaluate potential projects on an ongoing basis.
2. Projects are evaluated quarterly and placed into an integrated master CIP projects portfolio.
3. The developing CIP portfolio is reviewed by the entire CIP leadership team.
4. Strategic updates for the annual CIP program budget are provided to Raleigh’s Stormwater Commission for consideration.
5. Improvements/adaptive management updates are made to the model to promote best practices.
25
Stormwater CIP Planning Process
26
City of Raleigh
Stormwater Management Program
Master Developing CIP Projects Portfolio [Updated as of 11 August 2016]
Project ID Number Project Name Project Stage
Evaluation Date
(most recent)
General
Category of
Project CIP Sub-Category
Primary Type of
Project Sub-Watershed
Council
District
Total
Project
Score (TPS)
Safety
Criticality
Score
(SCS)
Mission
Criticality
Score
(MCS)
(0 - 100) (0 - 100) (0 - 100)210-2015-0039 Ramblewood Drive Drainage Improvements Preliminary 8/24/2015 CIP Street Drainage System ImprovementsInfrastructure Crabtree Creek E 69.44 100.00 78.41
210-2015-0011 White Oak Lake Dam Rehab Budgeted 8/24/2015 CIP Lake Preservation Integrated Simmons Branch D 65.24 80.00 71.65
210-2015-0025 Swann St Area Improvements (Phase 1) Active 8/24/2015 CIP TBD Infrastructure Crabtree Creek E 61.65 90.00 70.08
210-2015-0006 E. Millbrook Preliminary 8/24/2015 CIP TBD Integrated Big Branch A 60.25 80.00 73.20
210-2015-0026 Swann St Area Improvements (Phase 2) Budgeted 8/24/2015 CIP TBD Infrastructure Crabtree Creek E 59.00 90.00 70.08
210-2015-0010 Wycliff Road Preliminary 8/24/2015 CIP TBD Water Quality House Creek E 57.82 80.00 67.34
210-2015-0018 Knights Way/Audobon/Rainwood/Wagram Ct (Phase 5)Active 8/24/2015 CIP Neighborhood Drainage System ImprovementsInfrastructure Perry Creek A 55.98 70.00 61.53
210-2015-0033 Swift Drive / Pineview Drive Drainage Improvements (Simmons Branch Phase 2)Preliminary 8/24/2015 CIP Neighborhood Drainage System ImprovementsIntegrated Simmons Branch D 55.56 80.00 58.40
210-2015-0007 Hershey Court Preliminary 8/24/2015 CIP TBD Planning/Study Haresnipe E 55.52 80.00 67.34
210-2015-0003 Whispering Branch Road Area Drainage ImprovementsBudgeted 3/4/2015 CIP TBD Planning/Study Haresnipe E 54.38 90.00 67.30
210-2015-0008 Dana Drive Preliminary 8/24/2015 CIP TBD Planning/Study Walnut Creek D 53.50 80.00 67.34
210-2015-0009 Braceridge Road Preliminary 8/24/2015 CIP TBD Planning/Study Haresnipe E 51.32 80.00 67.34
210-2015-0004 Morningside Drive Preliminary 3/4/2016 CIP TBD Infrastructure House Creek E 51.15 80.00 57.97
210-2015-0034 Laurel Hills Road Lake Dam & Spillway RehabActive 1/12/2016 CIP Lake Preservation Infrastructure Crabtree Creek E 50.63 80.00 56.98
210-2015-0045 Glenbrook Drive Preliminary 8/24/2015 CIP Street Drainage System ImprovementsInfrastructure Walnut Creek C 49.56 80.00 56.19
210-2015-0001 Schaub Drive Preliminary 3/4/2016 CIP TBD Infrastructure Bushy Branch D 46.98 100.00 50.15
216-2015-0003 2925 Pinehurst Dr. Active 10/5/2015 DA Street Drainage System ImprovementsInfrastructure Marsh Creek B 46.61 60.00 48.04
210-2015-0044 Jupiter Street / Pinehurst Drive Preliminary 8/24/2015 CIP Street Drainage System ImprovementsInfrastructure Marsh Creek B 46.35 70.00 50.04
210-2015-0005 West Drewry Lane Preliminary 3/4/2016 CIP TBD Planning/Study Crabtree Creek E 46.06 70.00 50.15
210-2015-0002 Marcom Street Preliminary 3/4/2016 CIP TBD Infrastructure Bushy Branch D 45.66 90.00 52.94
216-2015-0014 600 Glennbrook Preliminary 12/4/2015 DA General Drainage Infrastructure Infrastructure Walnut Creek D 45.65 80.00 45.94
210-2015-0020 Beechwood Dr Area Drainage Improvements (Phase 1)Active 8/24/2015 CIP Neighborhood Drainage System ImprovementsInfrastructure Marsh Creek A 44.37 80.00 47.83
210-2015-0037 Brentwood Today Stream / Wetland RestorationActive 1/12/2016 CIP Stream Restoration Planning/Study Marsh Creek B 42.90 40.00 44.05
216-2015-0001 901 E Davie St Active 9/25/2015 DA General Drainage Infrastructure Integrated Walnut Creek C 42.38 50.00 41.53
211-2017-0006 Millbrook Exchange Park Preliminary 8/8/2016 CIP Stream Restoration Water Quality Perry Creek A 39.72 0.00 22.68
216-2015-0002 301 Glen Valley Dr. Active 9/30/2015 DA Stream Restoration Stream/Erosion Big Branch A 39.56 50.00 34.52
210-2015-0017 Battleford Drive Preliminary 8/24/2015 CIP TBD Stream/Erosion Haresnipe A 38.74 50.00 37.72
216-2015-0022 Courtland Drive Active 2/22/2016 DA General Drainage Infrastructure Stream/Erosion Pigeon House C 37.17 50.00 34.40
216-2015-0018 3412 Astro Court Active 2/23/2016 DA General Drainage Infrastructure Stream/Erosion Marsh Creek B 36.88 40.00 30.06
216-2015-0015 Spring Drive Preliminary 7/28/2016 DA General Drainage Infrastructure Infrastructure Haresnipe E 36.13 50.00 31.81
216-2015-0025 1209 Williamson Drive Preliminary 3/8/2016 DA General Drainage Infrastructure Integrated Perry Creek D 34.79 60.00 32.77
216-2016-0012 Hollirose Place Preliminary 6/29/2016 DA Neighborhood Drainage System ImprovementsInfrastructure Beaverdam-E B 34.49 50.00 35.30
216-2015-0023 6120/6124 River Landings Drive Preliminary 1/0/1900 DA General Drainage Infrastructure Stream/Erosion Neuse B 33.66 80.00 31.05
Prioritization Model Benefits
27
Heightened program transparency and accountability
Provides a team-based, innovative, and strategic approach to stormwater management
Aligned with the City of Raleigh’s Strategic Plan
Questions?
Blair Hinkle, PE and Scott Bryant, PE City of Raleigh Engineering Services Department
Stormwater Management Division Main Phone: 919-996-3940
E-mail: [email protected]
Raleighnc.gov Search: “Stormwater”
28