Embed Size (px)
Citation preview
9/12/2014
1
Advancing a Community’s Vision
through a Stormwater Master Plan
TFMA 2014 Fall Conference
San Antonio, Texas
September 5, 2014
SCOTT BERMAN, P.E., CFM – FREESE AND NICHOLS, INC.
TERRY HUGHES – CITY OF WEATHERFORD, TEXAS
What We’ll Cover
1. Vision for Community
2. Benefits of a strong master plan process
3. Development and utilization of a capital
improvements plan
4. Holland lake project
5. Advancing Community’s Vision
9/12/2014
2
Vision for Community
Vision for Community
9/12/2014
3
Vision for Stormwater
• Stormwater Vision for the City of Weatherford
• Strategies – Watershed Master Planning
Vision Concepts
• Customer Service
• Neighborhood
Quality
• Capital Projects
• Environmental
Initiatives
• Economic Growth
• Teamwork and
Leadership
• Supportive Work
Environment
9/12/2014
4
Vision Concepts
• Education
• Public safety
• Quality of Life
• Respect
• Professionalism
• Downtown
Revitalization
• Historic
Preservation
• Economic Development
• Family Focused
• Value Historic Tradition
• Plan for the Future
• Create a Safe, Livable
City
• Healthy Economy
• City/Citizen Partnership
• Access to Historic and
Natural Resources
• Provide Safety From
Flooding
• Development Friendly
Flood Protection Strategies
• Decision Making Partnership
City Goals
and Vision
Stormwater
Department
Goals
Align City and
Department Goals
9/12/2014
5
Vision for Stormwater
• Strategies – Implementation of the Vision
– Watershed Master Planning
– Financial Planning/Funding Strategies
– Capital Improvements Plan
• Development
• Implementation
Strategy Benefits
Benefits of Master Planning and Capital
Improvement Planning (CIP)
• Citywide Comprehensive Needs Assessment
• Prevents Unnecessary/Inefficient Spending
• Proactive vs. Reactive Approach
• Allows for Fiscal Planning and Funding Options
• Improves Safety and Protects the Public
• Enhances the City Aesthetics to meet City Planning Goals
10
9/12/2014
6
Holland Lake Watershed
Holland Lake History – Photo Circa 1940
Holland Lake Watershed
Holland Lake History – Present Day
9/12/2014
7
Holland Lake Watershed
Project Overview
• What Steps did we take?
– Data collection
– Detailed hydrologic/hydraulic analysis
– Stream condition assessment
– Capital improvements plan
– Community involvement
– Funding augmentation
9/12/2014
8
Project History –
1938 Aerial
Project History –
2012 Aerial
9/12/2014
9
Erosion Assessment
Flooding Assessment
9/12/2014
10
Sediment Assessment
• Holland Lake Half Full
Of Sediment
• Approximately 12,000 CY
• Upper Lake Completely Full
And Has Turned Into Marsh
Watershed Flood
Hazards
9/12/2014
11
Holland Lake Watershed Master Plan
Results and Areas of Interest
• 62 acres of floodplain (City Owns 22 Acres)
• 3 structures located within floodplain
• 6 roadways overtopped by 100-year flood
• Erosion concerns along both Holland Lake Creek and
South Holland Lake Creek
• Overall water quality
• 12,000 CY of sediment in Holland Lake (Lake is half
full of sediment and would disappear in 40 years)
Recommendations
Where do we go from here?
9/12/2014
12
Capital Improvement
Planning
• Potential Capital Improvements
– Riparian Corridor Protection
– Pool/Riffle Structures
– Channel Improvements
– Stormwater Retention/Water Feature
– Roadway/Culvert Improvements
– Trail Improvements
– Trash/Debris Collection
– Holland Lake Dredging
– Holland Lake Dam/Spillway Improvements
– Timber Creek Channelization
– Briarwood Erosion Protection
Capital Improvement
Planning
• Riparian Corridor Protection
– Protect riparian corridor and natural
resources
– Protect structures from floodplain
– Approximately 40 acres of floodplain to
be acquired
– Approximate Cost - $4.1 Million
9/12/2014
13
Capital Improvement
Planning
• Channel Improvements
– Step pools and rock riffle structures
– Channel bank improvements
– Approximate Cost - $2.1 Million
– HLC – 1,100 LF from Santa Fe to Upstream of Texas
– SHLC – 2,000 LF from IH 20 to Santa Fe
Capital Improvement
Planning
9/12/2014
14
Capital Improvement
Planning
Capital Improvement
Planning
• Culvert/Roadway Improvements
– Martin Drive
– Texas Drive
– HLC at Santa Fe Drive
– SHLC at Santa Fe Drive
– Approximate Cost
– $3.7 Million
9/12/2014
15
Capital Improvement
Planning
• Water Quality Best Management Practices
– Stormwater retention feature for sediment
catchment – Approximate Cost - $600,000
– Trash and debris collection – Approximate Initial
Cost- $10,000 – Requires
Routine O&M
Capital Improvement
Planning
• Quality of Life Improvements
– Trail Improvements (7,000 LF) In Addition to Trails
Master Plan
– Approximate Cost - $1.1 Million
9/12/2014
16
Capital Improvement
Summary
• Holland Lake Dredging
– Remove approximately
12,000 CY of sediment
– Improve water quality
– Recommended after
channel improvement
construction activities
– Approximate Cost
- $1 Million
Capital Improvement
Summary
• Holland Lake Dam/Spillway Improvements
– State Driven Project
– TCEQ Required
– Completed Dam
Breach Analysis
– Approximate
Cost
- $1.2 Million
9/12/2014
17
Capital Improvement
Summary
• Timber Creek Channelization
– Construct Approximately 1,200 LF Retaining Wall to
Reclaim Floodplain (1.5 ac) of Backyards of 11 Homes
– Approximate Cost - $1.5 Million
Capital Improvement
Summary
• Briarwood Erosion Protection
– Severe Erosion Threatens 6 Homes
– Channel Protection and Realignment
• Construct Approximately 500 LF of Channel Wall
• Buyout 1 Property for Construction Access
• Realign Channel
Away From Homes
• Stabilize Channel
Erosion
• Approximate Cost
– $1.5 Million
9/12/2014
18
Capital Improvement
Summary
• Potential Capital Improvements
RIPARIAN CORRIDOR PROTECTION $4,100,000
CHANNEL IMPROVEMENTS $2,100,000
WATER FEATURE $600,000
CULVERT/ROADWAY IMPROVEMENTS $3,700,000
TRAIL IMPROVEMENTS $1,100,000
TRASH AND DEBRIS COLLECTION $10,000
HOLLAND LAKE DREDGING $1,000,000
HOLLAND LAKE DAM/SPILLWAY IMPROVEMENTS $1,200,000
TIMBER CREEK CHANNELIZATION $1,500,000
BRIARWOOD EROSION PROTECTION $1,500,000
TOTAL $16,800,000
Develop Criteria &
Scoring Systems
Establish Criteria
Establish Scoring Process
Determine Weighting Factors
Project Priority Rankings
9/12/2014
19
Criteria
• Public Safety
– Life Safety / Emergency
Access
– Street Flooding
– Infrastructure Damage
– Structural Flooding
– Frequency of Flooding
– History of Complaints
• Environmental
– WQ Benefits
– Riparian Protection
– Erosion
– Sustainability
• Economic Growth
– Project Cost
– B/C Ratio
– Maintenance Costs
– Economic Development
• Quality of Life
– Open Space
– Parks
– Neighborhoods
– Greenways
Project Ranking
OVERALL PROJECT RANKING SUMMARY
Rank Project Name
1 Holland Lake Dam/Spillway Improvements
2 Timber Creek Floodplain Reclamation
3Rock Riffle Structures/Channel Improvements
4 Sediment Forebay/Water Feature
5 Briarwood Erosion Protection
6 Trash/Debris Collection
7 Riparian Corridor Protection
8 Culvert/Roadway Improvements
9 Trail Improvements
10 Holland Lake Dredging
CRITERIA
Life Safety/ Emergency Access
Street Flooding
Project Cost
Economic Development
Water Quality Benefits/Riparian Protection
Erosion Threat
Land Acquisition Needs
Benefit to Other Areas
9/12/2014
20
Community Involvement
Community Involvement Throughout Process
• City Staff and Council
• Advisory Panel – Residents and Business Leaders
• Conducted Project Award Interviews
• Assembled as Panel for Interim Project Results
• Gave Honest Feedback
• Helped Shape Project Deliverables
Advancing
Community’s Vision
• Project Animation Developed To Leverage
Master Plan to Advance Community’s Vision
9/12/2014
21
Next Steps
• Public Meetings
• Selection of Capital Improvements for Design
and Implementation
• Funding Augmentation
9/12/2014
22
Questions and Answers
Contact Information
Scott Berman, PE, D.WRE, CFM, CPESCAssociate/Senior Project ManagerFreese and Nichols, Inc. 4055 International Plaza, Ste. 200Fort Worth, Texas 76109 817-735-7460 office 817-881-6473 mobile
Terry HughesCapital Transportation Projects DirectorCity of Weatherford802 East Oak Street, P.O. Box 255Weatherford, Texas 76086 817-598-4244 office 817-597-0331 mobile
