Chip Seal 2019

Chip sealing of county roads starts July 15, 2019.

County’s Transportation Maintenance Division will begin annual chip seal work on county roadways on Monday, July 15. The work will take place from approximately 6 a.m. to 4:30 p.m., Monday through Thursday, and is expected to last three weeks, weather permitting.

Boulder County Transportation encourages motorists and cyclists to avoid unnecessary travel on the listed roads on days that the chip application and sealing operations are taking place, as there may be travel delays.

To aid in cycling safety and to help create a smoother ride, Boulder County uses a smaller chip size than is typically applied on other nearby roads that are not maintained by the county. The smaller chip creates a smoother surface and reduces wear and tear on bicycles.

FAQs

Chip sealing work consists of applying asphalt to a road surface followed by a layer of one-quarter inch chips that essentially create a new layer on top of the road. A week after the chips are applied, crews return to the area to apply a sealant designed to help the chips adhere to the road. Finally, the sealant is followed by roadway striping operations.

The roads to be chip sealed include:

  • 65th Street
  • 75th Street
  • 83rd Street
  • 87th Street
  • 95th Street
  • Hygiene Road
  • Neva & Niwot Roads
  • Overland Road west of Jamestown
  • Woodland Road
  • Yellowstone Road

See map or schedule for more details.

Chip sealing operations are part of the county’s primary network roadway rehabilitation plan. The process is intended to extend the lifespan of the roadway and postpone larger reconstruction efforts that would require more expensive work and longer travel restrictions. Primary network county roads are typically chip sealed every six to eight years.

Chip sealing will begin on Monday, July 15 and should end mid-August. For specific road closures, review the project schedule.

While Boulder County Transportation Maintenance strives to complete all projects on-time, work is weather dependent and there may be delays due to rain or other unfavorable working conditions.

For more information on the work, contact Andrew Barth, at abarth@bouldercounty.org or 303-441-1032.

Project Timeline (subject to change)

While Boulder County Transportation Maintenance strives to complete all projects on-time, work is weather dependent and there may be delays due to rain or other unfavorable working conditions.

Monday July 15:

  • 81st St. from Oxford Road going north
  • 51st St. from Jay Road going north

Tuesday July 16:

  • Niwot Road from 73rd to HWY 36
  • 65th from Nelson Road to St. Vrain Road

Wednesday July 17:

  • St. Vrain Road from 75th to 65th
  • Hygiene Road from 75th to Airport Road
  • Quail Road from Martin Street to 119th

Thursday July 18:

  • East County Line Road from the south Longmont city limit
  • Oxford Road from 95th to HWY 287

Friday June 19:

  • Sweeping as needed

Monday July 22:

  • 75th from HWY 66 to Woodland Road
  • Woodland Drive from 75th to 95th

Tuesday July 23:

  • 95th from HWY 66 north to Yellowstone Road
  • 95th from Yellowstone Road north

Wednesday July 24:

  • Yellowstone Road to HWY 287
  • 87th from Woodland to HWY 66th

Thursday July 25:

  • North 83rd from Woodland Road north

Friday July 26:

  • Sweeping as needed

Monday July 29:

  • Overland Road from Balarat Road to Bar K Road

Tuesday July 30:

  • Finish Overland Road
  • Complete County Road 130

Wednesday July 31- Tuesday August 6:

  • Fog seal all chipped roads (see above for affected roads)

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