cdot provides update on its 2016 ms4 and water...

CDOT Provides Update on its 2016 MS4 and Water Quality Activities As one of five MS4s in the Chatfield Watershed, the Colorado Department of Transportation provides an annual update to the Chatfield Watershed Authority on its MS4 permit and water quality activities. Dr. Holly Huyk provided an update on CDOTs Mitigation Pool projects and described the project application process (attach PWQ-MP.ppt file). Mr. Roman Jarequi, P.E., presented on CDOT’s current and future projects going on in the watershed and completed construction projects.

CDOT PWQ Mitigation Pool Update

Mitigation Pool Status

https://www.codot.gov/programs/environmental/water-quality/permanent-water-quality-call-for-projects

First round of applications and funding complete Local Agency funding for 2015 = $1.3 million; more requests

anticipated in 2016 Projects costing $500,000 or less (for CDOT) may apply for

state-only funds IF there is a demonstrated savings in time or cost relative to federal funding, AND Local Agency can demonstrate that state-only funding will not impact Tabor limits. Such funding will not be chosen until after projects are chosen.

Application deadline for 2016 extended to May 16, 2016 Website link for more details is:


Mitigation Pool-Lessons Learned


Contracting goes through CDOT Local Agency process and is subject to all related requirements.

All three funded projects, ranging from $65,000 to $1+million, are in the contracting process now.

Apply early enough that a year-long contracting process will not delay the project.

Best to have design at FIR level to know what costs will be, and to have all partnerships and maintenance agreements ready.

Designs MUST treat CDOT MS4 ROW and meet CDOT MS4 PWQ requirements. Streambank restoration is still off the table.


CDOT’s New MS4 Boundaries

As of 2015

2007-2015

More Information?


Go to website—LOTS of information! Download “Permanent Water Quality Long Range Plan” from

website Includes areas treated or not treated in CDOT MS4 Includes lists of long-range plans created by Local

Agencies Consider retrofitting flood detention for water quality

treatment. Specific questions: email [email protected] Website link for more details is:

Thank you!


mailto:[email protected]

Water Quality Control on CDOT Projectsin the Chatfield Basin

Presentation Outline

1. Construction Projects for 2016

2. CDPHE Permits on Completed Construction Projects

3. Projects in Planning/Design

1. Construction Projects for 2016

• C470 Managed Lanes: I-25 to Wadsworth

• I-25: NB Bridge Deck Rehab at Upper Lake Gulch Rd.

C470 Managed Lanes: I-25 to Wadsworth

Project Information

• Adding Managed Lanes from I-25 to Wadsworth

• Full re-construction of existing pavement

• Installing water-quality features

• Constructing noise barriers

• Installing tolling/ITS elements


Construction Schedule

• Design-Build Contractor to be selected March 30, 2016

• Construction to begin June/July 2016

• Completion by end of 2018


Permanent and Temporary BMP’sto be determined thru Design-Build process

I-25 NB Bridge Deck Rehab at Upper Lake Gulch Rd.

Project Information

• Removing and replacing portions of the bridge deck

• Sandblasting

• Waterproofingmaterial

• Repairs on Piers


Construction Schedule

• Construction began in Fall 2015

• Currently in winter shut-down

• Completion by May 31, 2016, waiting on night time temperatures for asphalt mat placement


Permanent BMPs

• None


Temporary BMPs

• Erosion logs

• Aggregate bags

• Concrete washout structures

2. CDPHE Permits on Completed Construction Projects

• SH 86: I-25 to Woodlands Blvd.

Reconstruction

3. Projects in Planning/Design

• US 85: Louviers to N of Sedalia Reconstruction

• US 85: Sedalia to Daniels Park Reconstruction

• Scour Repairs on SH 67 Bridges at East and West Plum Creek (On Hold)

• I-25 PEL Monument to C470 - starting in May

Thank You

Questions

cdot provides update on its 2016 ms4 and water...

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