Broomfield Heights Stormwater and Pedestrian Improvements

December 2024. A construction agreement with American West Construction was approved by City Council on December 3, 2024. Construction Management and Construction Administration contracts are on the City Council agenda for January 14, 2024. Staff is coordinating with the contractor to develop outreach materials and schedule a neighborhood meeting. Construction is anticipated to begin in February 2025.

October 2024. The construction procurement process is continuing. Once an Intent to Award has been made for construction, Broomfield will work with the selected contractor to finalize a construction agreement, which again is anticipated to go before City Council on December 3, 2024. The Construction Management procurement process is underway as well, but on a different timeline. An Intent to Award is anticipated in November, with a contract anticipated to be executed in January 2025.

August 2024: Construction documents were completed (See "Phase 2- Design & Engineering" of the "Project Documents section to the right. An Invitation to Bid was issued on BidNet inviting contractors to bid on the construction project. Bids are due in September and the construction agreement is anticipated to go to City Council on December 3, 2024. A Construction Management Request for Proposal (RFP) is also currently being advertised.

On May 1, 2024 a fourth Community Open House was hosted at Emerald Elementary School to share a design update. Please see the "Project Documents" section to the right for information that was presented that evening, including a copy of the presentation.

Image Caption

A Conditional Letter of Map Revision Report was submitted to FEMA for review in January 2024. A Conditional Letter of Map Revision (CLOMR), is FEMA’s comment on a proposed project that would affect the hydrologic or hydraulic characteristics of a flooding source. This project does not create a rise in water surface elevation on the City Park Channel- South Tributary with the proposed project modeling. No insurable structures will be negatively impacted as a result of the project, in fact, a significant number of structures (buildings) will be positively impacted.

The project design is still in its early stages, but as a result of the project's proposed stormwater improvements as many as 89 apartment units, 9 single-family houses and 1 commercial building would no longer be within the effective floodplain!

Note this image has a typo. It was prepared in January 2024, not 2004.

October - December 2023: Icon Engineering began preparing engineered plans for the project based on the Preferred Alternative. This work included additional survey, subsurface utility engineering (locating existing underground utilities), stormwater and floodplain analysis, and initial design of multimodal safety improvements. A Threatened and Endangered Species Habitat Assessment was also submitted to the U.S. Fish and Wildlife Service.

September/ October 2023: On September 26, 2023, Broomfield City Council approved a resolution and contract amendment with ICON Engineering for Phase 2: Design and Engineering. In late October letters were mailed to specific properties within the project area requesting 'Temporary Permission to Enter' so that project surveyors can survey grades and structure elevations necessary for floodplain modeling.

July/ August 2023: Phase 1: Alternatives Analysis concluded in July, with ICON Engineering completing a Summary Memo in August outlining the process, public engagement, and the preferred alternative.

Based on community input gathered throughout the Phase 1: Alternative Analysis phase, a Preferred Alternative for improvements within the project area has been identified. The proposed improvements include:

• 8-ft multi-use path on the south side of 3rd Avenue
• 5-ft sidewalk on the north side of 3rd Avenue, closing the gap near Marble Street
• Parking on the north side of 3rd Avenue east of Laurel St and on the south side west of Marble St
• Striped crosswalks throughout the corridor and traffic-calming bump-outs at key intersections
• New storm inlets and underground storm drain throughout the corridor
• Reduced size of the 100-year floodplain and severity of nuisance flooding

***All proposed improvements are conceptual at this time and subject to engineering and funding constraints. Proposed improvements may vary during Phase 2: Design and Engineering.***

The Project Documents and Project Videos sections have information presented at Community Open House #2 on May 2, 2023. The Presentation Video (6 minutes) is a great place to start. The Presentation Boards and Board Summary provide more detail on the information presented with larger versions of the alternatives.

The City and County of Broomfield heard resident concerns about traffic speeds along 4th Avenue and around the corner at Garnet throughout the Alternative Analysis phase. As a result:

• Speed Limit signs were installed in July 2023 on W 4th Avenue.
• The 4th/Garnet intersection will be evaluated for potential safety improvements during the Design/Engineering phase of this project. Implementation may be limited by the project budget.
• W 4th Ave will continue to be monitored for eligibility for potential traffic mitigation; presently, the speeds do not meet the criteria.
• Learn more about CCOB's traffic mitigation program.