95th Street Intersections Project

95th Street Intersections (Valmont and Isabelle) Improvements Project

PROJECT RESTART = Monday, Aug. 28, 2017 with Daytime, weekday closures

  • 95th Street CLOSED from just north of Valmont Road to the Lafayette city limits
    • 95th Street intersections with Valmont and Isabelle roads also closed during working hours
      • For both motor vehicles and bicyclists
    • Normal working hours = 8 a.m. to 4:30 p.m., Monday through Friday
      • Work zone open to all travelers outside of normal working hours
    • During working hours
      • Isabelle Road will be open to local residential traffic only between Hwy 287 and 95th Street
      • Valmont Road will be open to local residential traffic only between 75th Street and 95th Street
      • 95th Street residents north of Valmont Rd. will need to access their homes during closures from Lookout Road
      • 95th Street residents south of Isabelle Rd. will need to access their home during closures from Arapahoe Road
      • 95th Street residents between Valmont and Isabelle roads will need to access their home during closure from Isabelle Road via Hwy 287
    • Anticipated end date = November 2017
  • Project Contact – Andrew Barth – 303-441-1032
  • Project Plan Set

Project Travel Impact Map

95th Street Intersections project traffic impacts map

Project Background

Valmont and Isabelle roads intersect 95th Street at an “offset” intersection that requires eastbound and westbound vehicles to share the road with north-south traffic on 95th Street. Neither intersection is signalized leading to significant peak-hour congestion and accident rates that are among the highest of any intersection in Boulder County.

The 95th Street Intersection Improvement Project will make operational improvements at a set of two off-set stop-controlled intersections on 95th Street. Work will include:

  • Widening 95th Street to allow for legthened center turn lane for both intersections while maintaining the standard paved shoulder width along with a southbound right-turn lane onto Valmont from 95th Street
  • Widening Isabelle Road to allow for an additional turn lane onto 95th Street
  • Geometric improvements on Valmont Road at the intersection to improve safety and improve roadside drainage during storm events.

Project Renderings

95th Street Intersections project area overview

95th Street Intersections Project Area overview


95th Street Intersections Project rendering looking to the north along 95th Street towards Valmont Road

95th Street Intersections Project rendering looking to the north along 95th Street towards Valmont Road


95th Street Intersections Project rendering looking to the south along 95th Street towards Isabelle Road

95th Street Intersections Project rendering looking to the south along 95th Street towards Isabelle Road

Funding

Funding for the 95th Street intersection improvements is through a combination of County Transportation Sales Tax and Federal grants for intersection safety improvements.

The widening of Valmont Road, Isabelle Road, and 95th Street between the two intersections is listed on the 2007 Ballot Issue to fund transportation improvements throughout the county.

Boulder County was awarded $900,000 in Federal Hazard Elimination funds in 2012 to address safety concerns at the two intersections.

Project Schedule

  • Public Process – 2013 to 2015
  • Design – Complete
  • Right-of-Way, Contracting, and Utilities – Through July 2017
  • Construction – June/July 2017 through December 2017

Contact

  • Andrew Barth – Communications – 303-441-1032 – Email
  • Dan DeLange – Project Engineer – 303-413-7039 – Email

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