Spring Lake - A Case Study for LID (part 2)

Speakers discuss the key design components of the project – PART 1

Ryan Bentley, PLABig Muddy WorkshopLandscape Architect

Analysis, Design & Details

Project Role:Project Landscape Architect

Analysis

83 potential BMP technologies were identified, ranging from rain gardens, bioswales and infiltration trenches to wetlands, detention basins, and ponds. Most of the evaluated BMPs created treatment trains.

Analysis

Analysis

Design

Infiltration Basin

Design

Submerged Gravel

Wetland

Design

Submerged Gravel Wetland

Design

Design

Parking Island Bioretention

Parking Island Bioretention

Design

Lake

Design

Noteworthy Details

Lake Habitat Fishing points Fishing lawn Tree piles Pea gravel substrate Aerators

Submerged Gravel Wetland Engineering media Underdrain system with control valve Log outlet structure

Erosion Control Grade control fascines Bypass pipes Sandbag berms

Pipe Outlets Plunge pools Tied concrete block mat

Design

Planting Highlights

Canopy Trees – Hickory, Oak, Linden, Honeylocust, Coffeetree, Cottonwood

Understory Trees – Pawpaw, Redbud, Dogwood, Hophornbeam, Willow

Shrubs – Indigobush, Chokeberry, Buttonbush, Dogwood, Filbert, Sweetspire, Sumac, Gooseberry, Bladdernut, Snowberry, Currant, Viburnum

Perennials – Amsonia, Swamp Milkweed, False Indigo, Poppy Mallow, Sedge, Joe-Pye Weed, Blanket Flower, Sneezeweed, Iris, Moneywort, Bee Balm, Primrose, Switchgrass, Spiderwort, Golden Alexanders

Wetland Plants – Water Plantain, Sedge, Rush, Horsetail, Lobelia, Arrowhead, Bulrush

Design

Design Challenges

Sorin Juster, PEKirkham MichaelVice President

Devices were strategically placed

SAFL Baffle locations

Device Description

SAFL Baffle with Snout

Device without maintenance

Post Construction Inspections – it works!

SAFL Baffle and snout

Device with maintenance

Post Construction Inspections – it works!

SAFL Baffle and snout

First time for CSO projects

SAFL Baffle Design Criteria

Classified as low head

F Street Dam issues – Initial Concept

List components….

Chosen Concept for downstream face

Seepage Blanket and Sheet Pile Wall

Challenge with Jack and Boring During Construction

45 feet Deep Special Structure

Andy [email protected] of OmahaEnvironmental Quality Control Tech I

Sediment & Erosion Control ChallengesBuilding green infrastructure requires construction…

Looking north at what will be the lake 4/22/14

How do you go from this…

Looking north from F St – going into Late 2015

…through this…

Spring Lake Park – Spring 2015

…with mother nature acting like this…

Spring Lake Park – Summer 2016

…all while people are anxious for this?

Work in areas water is directed to(streets) Sewer separation first runoff into park 549 individual BMPs on SWPPP Construction approx. 29 months

Long & linear project w/unique setting

Tree removal…

Bird nesting - surveys Ground disturbance during

Steaming tree chip pile, called in by nearby resident thinking it was on fire

Keeping sediment, concrete, & other things out…

Good communication with the Corps

Wetland issues…

Timing for seeding Schedules of crews & mother nature…

Stabilization…

Maintenance ConsiderationsIt’s built…now what?

…in the design phaseGet the right folks involved…

Parks Department Sewer Maintenance Stormwater Program Levee

…in the design phase

Discussion… Who is doing what How often? How to make maintenance efficient What equipment will be used Accessibility Limitations

…during construction

Items that were regularly discussed…

Protection of completed areas Timing & establishment of vegetation

Transition from contractor to City

Maintenance going forward… Coordination between departments

Maintenance going forward… Component based Department based Initial establishment On-going maintenance

And finally…

Adapt to actual conditions Learn lessons Get people involved internally & externally This is only the beginning…

Speakers discuss what’s next and significance of the project

THE FUTURE

Steve Rodie, FASLA, PLAUniversity of Nebraska – OmahaDirector, Center for Urban Sustainability

Future Education & Teaching Opportunities

Education/Teaching – Why Important?

“What conservation education must build is an ethical underpinning for land economics and a universal curiosity to understand the land mechanism.

Conservation may then follow.” Aldo Leopold

Economics - Ecosystem Services and $$$

Designed services

Natural services Quality-of-life

and community health

Green infrastructure

Cost savings

Mechanism = Natural & Designed Systems

Project Documentation = Process

Location: Outlook 14 - LN

Missouri Avenue – Spring Lake ParkConstruction Progress Photos

Oct 2014

Oct 2014

Oct 2014



May 2015

May 2015

May 2015



Sept 2015

Sept 2015

Sept 2015



Oct 2015

Oct 2015

Oct 2015



Nov 2015

Nov 2015

Nov 2015



Dec 2015

Dec 2015

Dec 2015



Jan 2016

Jan 2016

Jan 2016



Feb 2016

Feb 2016

Feb 2016



Mar 2016

Mar 2016

Mar 2016



Apr 2016

Apr 2016

Apr 2016



May 2016

May 2016

May 2016



June 2016

June 2016

June 2016



July 2016

July 2016

July 2016



Aug 2016

Aug 2016

Aug 2016

Education/Teaching – Why Important?

• “Sustainability of green public spaces is ultimately measured by the public’s acceptance, use and valuing of that space.” Janet Bonet

“Sustainability of green public spaces is ultimately measured by the public’s acceptance, use and valuing of that space.” Janet Bonet

Bemis Arts Center Photography Students

UNL Water Resources classes

Groundwater Guardian Kansas State University

(urban design classes) Spring Lake School (Boy

Scouts, classes) Omaha South High School

(engineering) Mississippi River Basin

Alliance

Educational Interaction - Past

Educational Interaction - Current

Small pollinator garden planting

$500 grant for a community education event – pollinators

Making curriculum connections to Spring Lake School and Omaha South

Annual clean-ups

Education/Teaching – Benson West


Education/Teaching – Omaha Northwest


Education/Teaching – OPS Green School Initiative


Education/Teaching – Telling the Story


Questions . . .

Spring Lake - A Case Study for LID (part 2)

Environment

Transcript of Spring Lake - A Case Study for LID (part 2)