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Engineering Services, Capital Improvement Projects

Current Projects

Under Construction

State Highway 119 Pedestrian Underpass at Spring Gulch

*Formally known as the Spring Gulch #2 Phase 1 Drainage & Greenway Improvement Project


The project primarily involves installation of a new pedestrian underpass across State Highway 119 at the Spring Gulch crossing, approximately 3/4 mile east of County Line Road. Included in this work will be the installation of a new concrete walkway along the north side of SH 119, connecting this new pedestrian underpass to Third Avenue. Improvements to the intersection of County Line Road and SH 119 will also occur.

  • During construction, temporary bypass lanes will be constructed on SH 119 to allow traffic unrestricted movement through the work zone. The speed limit on SH 119, both east and west bound through this construction zone will be reduced to 45 MPH.
  • A portion of the Sandstone Ranch Park greenway trail on the south side of SH 119 will be closed during this construction. The portion of the trail to be closed connects the parking lot on the north side of the ball fields off of Zlaten Drive to the skate park at Sandstone Ranch. A detour access to the Sandstone Ranch Park from Zlaten Drive will be provided.
  • All accesses to businesses and residents will remain open. In the unlikely event that an access requires temporary closure due to the construction, notice of the closure will be issued prior to any work being done to interfere with this access.
Construction Timeline

Start: Week of October 21, 2013; Completion: Late June 2014

  • Curtis Ansel, Project Manager, City of Longmont, Public Works and Natural Resources, (303)651-8310,
  • Contractor, New Design Construction

Street Rehabilitation Program

The City’s annual Street Rehabilitation Program contracts with private sector contractors for replacement of broken curbs and sidewalks, preventive maintenance such as crack sealing, chip sealing and pavement overlay and reconstruction.

Downtown Alley Improvements

The City and the Longmont Downtown Development Authority (LDDA) are undertaking a project to improve the downtown alleys including the pedestrian experience and open new economic opportunities.

In Planning & Design

Main Street & Ken Pratt Blvd. Intersection Improvements

The objective of this project is to identify and construct needed improvements to add capacity and improve safety for both the immediate and long-term scenarios.

State Highway 119 Pedestrian Underpass Near Hover Road

This is a joint project between the City of Longmont, Boulder County and the Colorado Department of Transportation. A grade separated crossing of SH 119 is planned just southwest of Hover Street. This project will provide a key pedestrian/bicycle connection between Dry Creek Drive and Pike Road as well as provide an alternative to the busy SH 119 & Hover Street intersection.

Other Engineering Services Responsibilities

The Public Works & Natural Resources Engineering Services provides management, supervision, and financial control to the following areas: Street Construction, Transportation Engineering and Maintenance, Parks and Trails Development, Water and Wastewater Utilities Engineering, and Storm Drainage Engineering.

Other tasks associated with this service are project management, preparing designs, construction specifications, cost estimates, and contract documents. Staff also administers contracts while construction takes place and reviews the work to ensure that it meets City standards. This service offers technical assistance to other City departments, the City Council, and various City boards and commissions.



Public Works & Natural Resources

Updated 3/25/14