CSAH 100 & City Street Improvement Project

Share CSAH 100 & City Street Improvement Project on Facebook Share CSAH 100 & City Street Improvement Project on Twitter Share CSAH 100 & City Street Improvement Project on Linkedin Email CSAH 100 & City Street Improvement Project link

Overview:

St. Louis County, in partnership with the City of Aurora, is reconstructing and resurfacing CSAH 100 (3rd Ave North/Main St) from TH 135 to the railroad crossing. The City will also be reconstructing street and utilities on City streets along the CSAH 100 corridor. The reconstruction project is based on the layout developed from the CSAH 100 Corridor Study. This reconstruction project is necessary because the infrastructure has reached its end of useful life and is in need of improvement.

Key CSAH 100 project components include:

  • Construct a mini-roundabout at the intersection of Main St and 3rd Ave North.
  • Construct a raised median on 3rd Ave North between Erie St and Hill St. An opening in the median will be provided for local businesses.
  • Install enhanced pedestrian crossings that utilize RRFBs (pedestrian activated flashers) on 3rd Ave North at Hill St and 1st St.
  • Narrowing the overall street width on Main Street to accommodate larger sidewalks while maintaining 12’ parking lanes.
  • Construct a 6 ft sidewalk along the south side of 3rd Ave North between Erie St and Hill St.

Key City of Aurora project improvements include

  • Re-align 3rd St between Mesabi East School and 3rd Avenue to improve access to the campus
  • Construct a non-motorized trail along 1st Avenue, extending the Mesabi Trail from Pine Grove Park to the downtown business district
  • Reconstruct roadway and replace water and sewer utilities
  • Install new 12-inch water transmission line between water plant and 1st Avenue/Main Street intersection to increase capacity of system and support future extension of water system.
  • Improve entrance and parking lot at Pine Grove Park
  • Reconstruct Community Center Parking Lot and upgrade lighting

Map Centered around CSAH 100 in Aurora, MN

Rendering for the Enhanced Pedestrian Crossing on Hill StRendering for the urban Mini-Roundabout

Construction Phasing MapMap showing road construction phases from 2026 to 2027 with various colored lines indicating phases and a local detour route.

Stay Informed

  • Sign up for email updates

Overview:

St. Louis County, in partnership with the City of Aurora, is reconstructing and resurfacing CSAH 100 (3rd Ave North/Main St) from TH 135 to the railroad crossing. The City will also be reconstructing street and utilities on City streets along the CSAH 100 corridor. The reconstruction project is based on the layout developed from the CSAH 100 Corridor Study. This reconstruction project is necessary because the infrastructure has reached its end of useful life and is in need of improvement.

Key CSAH 100 project components include:

  • Construct a mini-roundabout at the intersection of Main St and 3rd Ave North.
  • Construct a raised median on 3rd Ave North between Erie St and Hill St. An opening in the median will be provided for local businesses.
  • Install enhanced pedestrian crossings that utilize RRFBs (pedestrian activated flashers) on 3rd Ave North at Hill St and 1st St.
  • Narrowing the overall street width on Main Street to accommodate larger sidewalks while maintaining 12’ parking lanes.
  • Construct a 6 ft sidewalk along the south side of 3rd Ave North between Erie St and Hill St.

Key City of Aurora project improvements include

  • Re-align 3rd St between Mesabi East School and 3rd Avenue to improve access to the campus
  • Construct a non-motorized trail along 1st Avenue, extending the Mesabi Trail from Pine Grove Park to the downtown business district
  • Reconstruct roadway and replace water and sewer utilities
  • Install new 12-inch water transmission line between water plant and 1st Avenue/Main Street intersection to increase capacity of system and support future extension of water system.
  • Improve entrance and parking lot at Pine Grove Park
  • Reconstruct Community Center Parking Lot and upgrade lighting

Map Centered around CSAH 100 in Aurora, MN

Rendering for the Enhanced Pedestrian Crossing on Hill StRendering for the urban Mini-Roundabout

Construction Phasing MapMap showing road construction phases from 2026 to 2027 with various colored lines indicating phases and a local detour route.

Stay Informed

  • Sign up for email updates
  • CLOSED: This survey has concluded.

    CSAH 100 Corridor Survey #2

    The CSAH 100 Survey #2 is now closed. Results will be given at the next public meeting. Thank you for your input!

    Background

    Thank you for your time to complete this survey for the CSAH 100 (3rd Ave N/Main St) Corridor Study. Your input is very valuable. This survey is expected to take less than 15 minutes.

    St. Louis County, in coordination with the City of Aurora, is exploring potential improvements along CSAH 100 (3rd Ave North/Main St) beginning ¼ mile east of Highway 135 and ending at Highway 110.

    The project team began studying this corridor in January 2024 and will be making recommendations for improvements in the Fall of 2024. These recommendations will be implemented on the CSAH 100 (3rd Ave N/Main St) corridor by St. Louis County with a planned reconstruction project in 2026.

    This survey will explore the community’s perspective on various design alternatives for the CSAH 100 corridor.

    Share CSAH 100 Corridor Survey #2 on Facebook Share CSAH 100 Corridor Survey #2 on Twitter Share CSAH 100 Corridor Survey #2 on Linkedin Email CSAH 100 Corridor Survey #2 link
  • CLOSED: This survey has concluded.

    CSAH 100 Survey #1 - Closed

    The CSAH 100 Survey is now closed. Thank you for your input!

    Thank you for your time to complete this survey for the CSAH 100 (3rd Ave N/Main St) Corridor Study. Your input is very valuable. This survey is expected to take less than 10 minutes.


    St. Louis County, in coordination with the City of Aurora, is exploring potential improvements along CSAH 100 (3rd Ave N/Main St) beginning 1/4 mile east of MNTH 135 and ending at CSAH 110 (Hwy 110). This survey will help explore the community’s perspective on current issues and potential improvements.


    The project team began studying this corridor in January 2024 and will be making recommendations for improvements in the Fall of 2024. These recommendations will be implemented on the CSAH 100 (3rd Ave N/Main St) corridor by St. Louis County with a planned reconstruction project in 2026.

    Share CSAH 100 Survey #1 - Closed on Facebook Share CSAH 100 Survey #1 - Closed on Twitter Share CSAH 100 Survey #1 - Closed on Linkedin Email CSAH 100 Survey #1 - Closed link
Page last updated: 01 May 2026, 11:13 AM