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Dec 01

[ARCHIVED] Drew Hill Road over Ralston Creek Culvert, Golden, CO 80403

The original item was published from May 10, 2022 2:12 PM to December 12, 2022 1:52 PM

Project Background:

Jefferson County will replace a culvert (B-25-M004) on Drew Hill Road over Ralston Creek, 4.3 miles northeast of Golden Gate Canyon Road. The culvert in this location includes an existing corrugated metal pipe. The county recently had the pipe inspected and determined the existing condition of the pipe warrants replacement of the culvert.

Link to Drew Hill Site Map


Project Scope:

The project entails replacement of the existing corrugated metal pipe with a reinforced concrete box culvert. The box culvert will include Redi-Rock wingwalls. The project also includes installing riprap areas on the upstream and downstream sides of the culvert for erosion protection.

Project Schedule:

Construction for the culvert replacement will occur within the spring of 2023 prior to runoff. The project completion shall occur prior to May 2023.

Project Impact on Traffic:

During the project, the contractor will be required to provide an alternating single travel lane. The single travel lane will likely be controlled with temporary traffic signals and have minimal wait times. The county plans to provide the contractor with a single week of a complete roadway closure. This closure will only be on Drew Hill Road at the project location and residents will be given notice beforehand. This will shorten the overall project length by reducing time taken to install the culvert crossing beneath the roadway.

Jefferson County will provide an updated notice of traffic impacts before construction activities begin.

Link to larger image of a sinkhole caused by a failed section of pipe on Drew Hill Road.A sinkhole caused by a failed section of pipe.