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North 83rd Street Reconstruction (Niwot Road to SH 119)

North 83rd Street Reconstruction (Niwot Road to SH 119)

Project Complete

Improvements:

  • Full reconstruction of 1-mile of North 83rd Street
    • Maintain current road width
    • Widen road by 4-feet between Niwot and Neva roads
  • Two new raised trail crossings
    • One at Niwot Loop Trail north of Niwot Road
    • One at Longmont-to-Boulder trail crossing south of SH 119
  • Reconstruction of the Lefthand Valley Grange Park parking lot (funded by Parks and Open Space Department)

Project Details & Designs

  • Pages 1 to 27 – Cover, introduction, notes, quantities, site plan, typical sections, tabulations, survey control, geology, and geometry
  • Pages 28 to 47 – Construction details and removals and resets
  • Pages 48 to 65 – Plans and Profiles
  • Pages 66 to 96 – Culvert details, storm drain, sewer, utilities, stormwater management, erosion control
  • Pages 97 to 111 – Signage and striping
  • Pages 112 to 162 – Traffic control during construction & detour plans, cross sections, trailhead plans, and easements

Project Contacts

  • Andrew Barth – Communications – email or 303-441-1032

Contact Us

Transportation Department

303-441-3900
Submit a question

Location

2525 13th Street
Boulder, CO 80304

Map & Directions

Hours: 8 a.m. - 4:30 p.m. M-F

Mailing Address

P.O. Box 471
Boulder, CO 80306