UT FLAP SLA 10(1) Mill Creek Canyon Road

SOLICITATION TYPE: FULL AND OPEN COMPETITION with HubZone Preference PROJECT NUMBER: UT FLAP SLA 10(1)

PROJECT NAME:

MILL CREEK CANYON ROAD PROJECT DESCRIPTION: Mill Creek Canyon Road provides access to recreational sites in the Uinta-Wasatch-Cache National Forest from 3800 S. Wasatch Boulevard to the Upper Big Water Trailhead. The purpose of the project is to improve safety, improve access to high quality recreational opportunities, and protect the water and wildlife resources through natural resources best practices. Mill Creek Canyon Road is located within Salt Lake County in northern Utah.

The majority of the road is located within the Unita-Wasatch-Cache National Forest but is maintained by Salt Lake County. The project consists of reconstruction and widening of Mill Creek Canyon Road from Big Water Trailhead to Elbow Fork (3.1 miles) to a 20-foot paved width and from Elbow Fork to Winter Gate (1.4 miles) to 24-foot paved width.

Improve pertinent picnic area parking and trailhead areas, including, Big Water Trailhead, Alexander Basin, Clover Springs Picnic Area, Fir Crest Picnic Area, Elbow Fork, and Winter Gate (Maple Cove) parking/trailheads. To complete the proposed widening and realignment, timber removal, rock and soil cuts and fills, profile adjustments, curve widening, ditch reconstruction, retaining walls, culvert replacement, asphalt surfacing, erosion control, singing, and pavement markings are expected.

Due to the mountainous terrain, significant boulders and areas with noted seepage or soft subgrade will be encountered. The project also includes drainage improvements consisting of extending existing box culverts with headwalls and wingwalls, replacement of the White Bridge box culvert, installation of a new Mill Creek box culvert, ditch or curb and gutter establishment, vegetated swales, and water quality basins.

The project also includes installation of parking area vault toilets and 3-inch diameter electrical conduit and 2-inch diameter communications conduit with pull boxes below the roadway to support future utilities. An estimated eight retaining walls are proposed along the road or at parking areas to stabilize steep slopes and minimize the overall disturbance footprint.

PRINCIPAL WORK ITEMS: 20101-0000 Clearing and Grubbing, 31.6 ACRE 20401-0000 Roadway Excavation: 53,500 CUYD 25201-0000 Special Rock Embankment 5,500 CUYD 252201-0000 Rockery (Retaining Wall) 3,100 SQFT 25902-0000 Soil Nail Retaining Wall 9,000 SQFT 30101-0000 Aggregate Base: 25,000 TON 40101-5600 Asphalt Concrete Pavement, Gyratory Mix, ½-Inch or ¾-Inch Nominal Maximum Size Aggregate, 0.3 to <3 Million ESAL:

11,500 TON 60201-Various – CMP:

1,425 LNFT 60220-0000 Precast Reinforced Concrete Box Culvert:

140 LNFT 63501-0000 Temporary Traffic Control:

LPSM ANTICIPATED SCHEDULE: Advertisement – September 2024 Award – October 2024 NTP – January 2025 Winter Shutdown – November 2025 to April 2026 Contract Completion – October 2026 ESTIMATED COST RANGE: Schedule A estimated total cost is between $20,000,000 and $30,000,000 NON-MANDATORY PRE-BID SITE VISIT: Representatives from the Federal Highway Administration (FHWA) will conduct a meeting on Tuesday, October 8, 2024, from 9:00 a.m. to approximately 1:00 p.m. FHWA will provide a brief project presentation, a driving tour stopping at various locations to present design elements along the route and be available to answer questions for the balance of the time period.

Access to the project roadways are not restricted to the public during the site visit, please provide your own transportation and personal protective equipment. Tour stopping locations have limited parking, please consolidate vehicles to the extent practical.

Interested parties will meet at the Maple Grove Picnic Area/Winter Gate of Mill Creek Canyon Road, approximately 4.7 miles east of the intersection of Wasatch Blvd and 3800S (Mill Creek Canyon Road) Mill Creek, UT, at 9:00 a.m. If you would like to attend the pre-bid meeting, please email to cflcontracts@dot.gov by Friday, October 4, 2024. ATTENDANCE AT THE PROJECT PRE-BID MEETING IS NOT MANDATORY TO BID THE PROJECT AND ACCESS TO THE SITE WILL BE AVAILABLE THROUGHOUT THE SOLICITATION PERIOD.