Best Practice Action Detail

Best Practice Action 15.5

GreenStep City Best Practices: Environmental Management
Sustainable Purchasing No. 15

Adopt environmentally preferable purchasing policies and practices to improve health and environmental outcomes.

Best Practice Action 5

Set minimum standards for the percentage of recycled-content material in asphalt and roadbed aggregate or other construction materials, and for compost and warm mix asphalt use.

1 star Follow latest MnDOT specifications for recycled glass and aggregate in roadbeds.
2 star All paving projects incorporate recycled asphalt (RAP); report use of warm-mix asphalt; use recycled plastic manhole adjusting rings; use MnDOT compost specification 3890 for soil amendments in parks, boulevards, stormwater installations.
3 star Follow MnDOT specs for RAP and shingles (asphalt shingle manufacturing scrap and/or shingle tear-off scrap) in asphalt mixtures.

Who's doing it

Bloomington - 3 star
Date action report first entered:
Date of last report update:
Year action initially completed:
Implementation details:
The City of Bloomington follows the latest MnDOT specifications and intend to use the updated 2018 specs. Most of the City's projects incorporate RAP, recycled plastic manhole adjustment rings and MnDOT compost specs. We also follow MnDOT specs for RAP and shingles in asphalt.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Steve Gurney (City staff) | sgurney@BloomingtonMN.gov | 952-563-4606
Partners:
Minnetonka - 3 star
Date action report first entered:
Date of last report update:
Year action initially completed: 2017
Implementation details:
The City of Minnetonka follows the MnDOT specifications for all public paving projects. This includes allowing RAP and shingles in asphalt mixtures.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Drew Ingvalson (City staff) | dingvalson@eminnetonka.com | 952-939-8293
Partners:
Albert Lea - 2 star
Date action report first entered:
Date of last report update:
Year action initially completed:
Implementation details:
The City of Albert Lea uses recycled asphalt for all road projects, up to 30% of the asphalt content may be RAP.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Jerry Gabrielatos (City staff) | jgabrielatos@ci.albertlea.mn.us | 507-377-4316
Partners:
Fridley - 2 star
Date action report first entered:
Date of last report update:
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Implementation details:
The city requires all city contractors to follow MN-DOT specifictions and allow RAP up to 20% by weight.

Adjusting rings from HDPE are approved as an alternate to concrete adjusting rings; virgin and recycled material are both allowed.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Rachel Workin (City staff) | rachel.workin@fridleymn.gov | 763-572-3594
Partners:
Hutchinson - 2 star
Date action report first entered:
Date of last report update:
Year action initially completed:
Implementation details:
On all road reconstruction projects, 100% of asphalt is either reused in the project, or recycled. Generally, between 90-95% of asphalt is reused on the project to establish the aggregate roadbed, with the goal being to reuse 100% of reclaim. The remaining asphalt is recycled at the city-owned and operation Creekside facility to be used in other projects.

Additionally, 100% of concrete from reconstruction projects is recycled at the Creekside facility, and is used as bitcon and crushed concrete.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
John Paulson (City staff) | jpaulson@ci.hutchinson.mn.us | 320-234-5682
Partners:
Red Wing - 2 star
Date action report first entered:
Date of last report update:
Year action initially completed:
Implementation details:
We currently recycle 100% of asphalt pavement. About 95% goes back into new asphalt and 5% goes into roadway aggregate. We currently recycle approximately 95% of the concrete/blocks/bricks/etc. into roadbed aggregate. The remaining 5% has metal reinforcing bars/mesh that is too hard to put through the crusher. We currently reuse approximately 40% of our roadbed aggregates. It’s hard to increase this amount because of contamination with the sub-grade materials during the reconstruction process. We recycle 100% of our old manhole castings, valve boxes, metal pipes, old signs/posts, etc. The only one of these items we typically purchase as a recycled material is the asphalt, which is allowed to have up to 20% recycled material. The other items, except the metal, we recycle ourselves and use on our own projects, so the costs of salvaging, hauling, crushing, etc. are the cost of the recycled material.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Paul Drotos (City staff) | paul.drotos@ci.red-wing.mn.us | 651-410-6744
Partners:
Rochester - 2 star
Date action report first entered:
Date of last report update:
Year action initially completed:
Implementation details:
1. Aggregate -We changed our gravel or aggregate base from Class 2 to Class 5 which allows the gravel base to be salvaged/recycled aggregate mixtures MnDOT 3138
(this occurred about 4-5 years ago and is now on the plan for the next spec book update)

2. Asphalt -2360 calls for recycled base courses and first lift of an overlay on a roadway

3. Concrete pavements
most concrete pavements and sidewalks have fly ash for cementitious substitutions

4. most concrete pipes use Cement substitutions as addressed in 2461.3D are hereby modified as follows to allow:
(a) 30 percent Class F or Class C fly ash by weight
(b) 35 percent ground granulated blast furnace slag by weight
(c) 35 percent substitution with a combination of ground granulated blast furnace slag and Type F or Type C fly ash by weight
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Partners:
Apple Valley - 1 star
Date action report first entered:
Date of last report update:
Year action initially completed:
Implementation details:
The City uses standard MNDOT specifications for aggregate composition percentages in surfaced roads and shoulders. A salvaged/recycled aggregate mixture shall have a minimum of 10% by mass aggregate material incorporated into the mixture.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Charless Grawe (City staff) | CGrawe@ci.apple-valley.mn.us | 952-953-2508
Partners:
Brainerd - 1 star
Date action report first entered:
Date of last report update:
Year action initially completed:
Implementation details:
The city requires all city contractors to follow MN-DOT guidelines regarding the percentage of recycled-content material in roadway construction.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Mark Ostgarden (City staff) | mostgarden@ci.brainerd.mn.us | 218-828-2309
Partners:
Crystal - 1 star
Date action report first entered:
Date of last report update:
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Implementation details:
Crystal has a comprehensive reconstruction program for all local streets and the bid specifications for reconstruction projects require the asphalts from the streets to be recycled in the reconstruction projects.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Anne Norris (City staff) | Anne.Norris@crystalmn.gov | 763-531-1140
Partners:
Hastings - 1 star
Date action report first entered:
Date of last report update:
Year action initially completed:
Implementation details:
Our Engineering Specifications for street projects speak to this requirement. However, it is widely variable and depends on the infrastructure challenge at hand.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Nick Egger (City staff) | negger@hastingsmn.gov | 651-480-2370
Partners:
Maplewood - 1 star
Date action report first entered:
Date of last report update:
Year action initially completed:
Implementation details:
In the Environmental purchasing policy recently passed by the city there are many different recycled-content material standards set. Examples discussed in the policy are paper, aggregate, lubricants, roads signs, and industrial oil.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Shann Finwall (City staff) | shann.finwall@maplewoodmn.gov | 651-249-2304
Partners:
New Hope - 1 star
Date action report first entered:
Date of last report update:
Year action initially completed:
Implementation details:
According to the city's Streets & Parks Supervisor, the city does not set a minimum use, but uses "Leap Asphalt" which is a class 5 recycle asphalt, for roadbed material.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Jeff Alger (City staff) | jalger@ci.new-hope.mn.us | 763-531-5119
Partners:
Northfield - 1 star
Date action report first entered:
Date of last report update:
Year action initially completed: 2016
Implementation details:
All of Northfields paving projects follow MnDOT's spec's on recycled asphalt.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Beth Kallestad (City staff) | beth.kallestad@ci.northfield.mn.us | 507-645-3074
Partners:
Richfield - 1 star
Date action report first entered:
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Implementation details:
No official policy, but it is common practice. Contractor specs. The entire Met Sewer Project was paved using 100% recycled asphalt.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Logan Vlasaty (City Staff) | lvlasaty@richfieldmn.gov | 6128619789
Partners:
Saint Anthony - 1 star
Date action report first entered:
Date of last report update:
Year action initially completed:
Implementation details:
The City of St. Anthony considers recycled-content materials as equals to virgin consumer products when purchasing.
Outcome measures/metrics/money saved:
Encourging the use of recycled materials.
Descriptive File:
For more information contact:
Jay Hartman (City staff) | jay.hartman@ci.saint-anthony.mn.us | 612-782-3314
Partners:
Shoreview - 1 star
Date action report first entered:
Date of last report update:
Year action initially completed:
Implementation details:
The City uses standard MNDOT specifications for aggregate composition percentages in surfaced roads and shoulders. A salvaged/recycled aggregate mixture shall have a minimum of 10% by mass aggregate material incorporated into the mixture.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Ellen Brenna (City staff) | ebrenna@shoreviewmn.gov | 651-490-4665
Partners:
Duluth - Pending
Date action report first entered:
Date of last report update:
Year action initially completed: 2010
Implementation details:
Duluth uses the MNDOT standards for recycled materials. On road reconstruction projects it is standard for the city to grind up the existing bituminous material and blend it into the new gravel base to provide a more stable base for the new road and saves the time, energy, and money required to haul away the old material and bring in new road base.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Alex Jackson, Energy Coordinator (City staff) | ajackson@DuluthMN.gov | 218-730-4433
Partners:
Hopkins - Pending
Date action report first entered:
Date of last report update:
Year action initially completed:
Implementation details:
Hopkins does not currently have minimum standards for the percentage of recycled-content material in at least 5 products. However, the City continually looks to advocate waste reduction activities and the use of recycled products within City offices. The City is looking into a specific policy.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Amy Domeier (City staff) | Adomeier@hopkinsmn.com | 952-548-6304
Partners:
Lakeville - Pending
Date action report first entered:
Date of last report update:
Year action initially completed: 2014
Implementation details:
The City of Lakeville follows MnDOT specifications for its road reconstruction projects. City projects incorporate recycled materials in the mix and the base. If recycled concrete is use in the base, the recycled concrete content may not exceed 40 percent by volume. In the base or wear course job mix, the maximum allowable percentage of recycled material incorporated into the mix shall not exceed 50 percent by weight of recycled material to final production mix. The City’s road reconstruction projects involve reclamation of the old asphalt and its incorporation into the base for the road.
Outcome measures/metrics/money saved:
Descriptive File:
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705
Partners: