Environmental Assessments

• 85th Street Improvements: Sundowner Ave. to Louis Ave., including I-29 overpass, and 85th St. Improvements from Louise Ave. to Tallgrass Ave. in Sioux Falls; Lincoln County, SD
• Finding of No Significant Impact (FONSI), 03/01/2018

Notice of Public Meeting - Dec. 5, 2017 - and Environmental Assessment approved for Public Availability

• Notice of Public Meeting - Written comments accepted until Dec. 18, 2017
• Environmental Assessment for Public Availability
• Appendix A - Public Involvement
• Appendix B - Traffic Memo
• Appendix C - Agency Correspondence
• Appendix D - Noise Report
• Appendix E - Wetland Delineation
• Appendix F - Wetland Finding
• US14/US83/SD34 Bridge over the Missouri River between Pierre/Ft. Pierre
• Finding of No Significant Finding (FONSI) & Section 4(F) De Minimis Impact Finding
• Notice of Public Meeting
• Environmental Assessment (EA) & Section 4(f) De Minimis Analysis
• Additional information on this EA and bridge replacement study is located on the project website: http://www.us14missouririverbridge.com
• South Rochford Road EA

The South Dakota Division of the Federal Highway Administration has recently completed an Environmental Assessment (EA) and Draft Section 4(f) Evaluation regarding proposed improvements to South Rochford Road. You are invited to attend a public meeting scheduled to discuss the EA. The meeting will be held Wednesday, April 20th from 5-7pm (MST) at the Hill City High School.

• Notice of Public Meeting
• S. Rochford Rd. FONSI, Final EA & EA supporting documentation:
• FONSI
• EA
• EA References List
• Purpose and Need Development Memorandum
• Wetland Delineation Report for South Rochford Road
• Design Memo
• Environmental Justice Memo
• Appendix A
• Appendix B
• Appendix C
• Final EA, Section 4(f) Evaluation, and Finding of No Significant Impact (FONSI)
• I-229 Exit 5 (26th Street) Interchange in Sioux Falls
• FONSI & Section 4(f) De Minimis Finding, 05/20/2015
Notice of Public Information Meeting - January 14, 2015 - and availability of Environmental Assessment (EA) & Section 4(f) De Minimis Analysis
• Public Notice
• EA & Section 4(f) De Minimis Finding
• EA Appendices
• East Side Corridor (S.D. 100 North Segment) from I-90 to South of Madison Street in Sioux Falls

Reevaluation - Environmental Assessment & Final Section 4(f) Evaluation

• EA Reevaluation - 11/16/2017
• Final Section 4(f) Evaluation - 11/16/2017

Reevaluation - Environmental Assessment & Section 4(f) De Minimis Impact Finding

• EA Reevaluation - 7/11/2017

Reevaluation - Environmental Assessment & Section 4(f) De Minimis Impact Finding

• EA Reevaluation - 8/23/2016
• Appendices

Finding of No Significant Impact (FONSI) & Section 4(f) De Minimis Impact Finding

• FONSI & Section 4(f) De Minimis Finding - 01/27/2015

Notice of Public Meeting - October 21, 2014 - and availability of Environmental Assessment

• Meeting Notice
• EA & Section 4(f) De Minimis Analysis
• EA Appendices
• Peter Norbeck Scenic Byway Lake Enhancements Projects (on Bismarck, Horsethief, & Lakota Lakes)
• Environmental Assessment
• Finding of No Significant Impact
• US16 - From 1 mile West of Jewel Cave National Monument to 0.5 miles East of Jewel Cave National Monument
• Notice of Public Availability
• Environmental Assessment and Section 4(f) Evaluation
• Finding of No Significant Impact and Section 4(f) Evaluation
• Downtown Sioux Falls Rail Yard Redevelopment Project
• Draft Environmental Assessment & Section 4(f) Evaluation
• Finding of No Significant Impact and Section 4(f) Evaluation
• I-190 Silver Street Interchange in Rapid City
• Finding of No Significant Impact - Final Environmental Assessment & Section 4(f) De Minimis Impact Finding
• Summary to 06/11/2013 Public Information Meeting
• Spearfish Canyon Recreation Site Improvements - Bridal Veil Falls & Long Valley Picnic Ground
• Environmental Assessment
• US85 project in Deadwood from US385 Jct. to Cemetery St.
• Public Notice
• Approved Draft Section 4(f)/6(f) Evaluation
• South Dakota School of Mines and Technology Connector Road in Rapid City
• Environmental Assessment
• Noise Studies on Interstate 29 from Interstate 229 to 26th Street in Sioux Falls
• November 2005 Noise Report
• November 30, 2005 Presentation
• July 30, 2010 Noise Report Addendum
• August 26, 2010 Public Meeting Presentation
• August 26, 2010 Handout
• August 26, 2010 Sign-in Sheet
• I-90 West, Exit 40-Exit 51

This project provides greater separation between service roads and I-90 to facilitate future 6-lane potential.

Environmental Assessment

• East Side Corridor (SD100 South Segment) from I-29/County Road 106 (Exit 73) to south of 26th Street in Sioux Falls

Environmental Assesment

Appendix A - Traffic Study

Appendix B - SD100 Access and Noise Plan

Appendix D - Interchange Options

Appendix E - Utilities Correspondence

Appendix F - Noise Study

Appendix G - USDA Farmland Conversion Impact Rating Form (Form CPA-106)

Appendix H - Agency Correspondence

Appendix I - Executive Order 11990 Wetland Finding

Appendix J - February 7, 2006 Public Information Meeting Items

Appendix K - January 17, 2007 Public Hearing Items

Appendix L - Section 4(f) De Minimis Impact Finding

Appendix M - November 22, 2011 Public Information Meeting Items

• Solberg Avenue - Tallgrass Avenue Overpass of I-229 in Sioux Falls

This project will construct a new street that will connect Solberg Avenue at 59th Street to Tallgrass Avenue at 69th Street in Sioux Falls. It will include an overpass of I-229.

Notice of Public Availability

Draft Environmental Assessment

Appendix A - Traffic Operations Technical Memorandum

Appendix B - Agency Correspondence

Appendix C - Wetland Assessment Report

Appendix D - Executive Order 11990 Wetland Finding

Appendix E - Public Involvement

Public Meeting URS Presentation

• Pierre Railroad Grade Separation

This project provides a separated railroad crossing in East Pierre to connect the highway routes through Pierre without at-grade railroad crossing delays. It includes a new highway alignment from the existing S-Curve east along Sioux Avenue to a highway overpass near Polk Street and Wells Avenue. It will allow all traffic and emergency response better access through Pierre.

Environmental Assessment

EA Maps & Attachments

EA Appendix A

EA Appendix B

EA Appendix C

EA Appendix D

EA Appendix E

• Watertown South Connector Route - US 81 to 29th Street SE
  • Environmental Assessment
  • Appendix A - Traffic Analysis
  • Appendix B - Utilities
  • Appendix C - Noise Study
  • Appendix D - Agency Correspondence
  • Appendix E Section 4(f) - DeMinimis Impact Finding
  • Appendix F - USDA Farmland Conversion Score
  • Appendix G - Big Sioux River Hydraulic Memo
  • Appendix H - Willow Creek Hydraulic Memo
  • Appendix I - Wetland Mitigation Report and Agency Meeting Note
  • Appendix J - Meeting and Conference Call Notes
  • Appendix K - August 8, 2006 Public Meeting Items
  • Appendix L - October 23, 2007 Public Meeting Items
  • Appendix M - EA Update Memo - Alignment

• Watertown South Connector Route from US Highway 212/SD 20 Intersection to US Highway 81
• Draft EA October 2009
• Appendix A - Traffic Analysis
• Appendix B - Public Utilities
• Appendix C - Noise Analysis
• Appendix D - Agency Correspondence
• Appendix E - De Minimis Finding
• Appendix F - Farmland Impace Form
• Appendix G - Hydraulics
• Appendix H - Meeting & Conference Call Notes
• Appendix I - BNSF Correspondence
• Appendix J - Wetland Finding
• Appendix K - August 2006 Public Meeting
• Appendix L - October 2007 Public Meeting