Fort Tuthill Utility Improvement Project

Project Updates

June 12 - Read the press release

June 15 - Project Schedule

July 13 - This week, contractors for the Fort Tuthill Utility Improvement Project are installing water line in the north section of Fort Tuthill County Park and along the FUTS Trail in that area. Work is expected to take a couple of weeks. FUTS Trail users will experience reroutes in this area and will be rerouted onto Purple Sage Road and an internal ADOT road within the park. Please follow detour signs and be aware of traffic on Purple Sage Road.

July 24 - Attention Soldiers Trail users at Fort Tuthill County Park: The recent construction work with the water/wastewater line has required us to put in a reroute on portions of the Soldiers Trail in the park. Please follow all reroute signage and do not enter the construction area for your own safety. These are temporary reroutes, as are the FUTS reroutes north of the park, and we’ll be getting you all back on the original trails soon. Thanks for your patience. 

July 31 - Trail reroute update: The Soldiers Trail reroutes have been removed and trail users are back on the original trail alignment. The temporary reroutes for the FUTS Trail north of the park remain in place; please follow all detour signs and do not enter the construction area for your own safety.

August 6 - FUTS Trail users along the Sinclair Wash segment (west end) will experience temporary trail reroutes near University Heights beginning August 10 for approximately three weeks. Trail users should follow all detour signs and stay out of the construction zone for their own safety due to heavy equipment and water/wastewater line trenches.

Trail users will continue to experience temporary FUTS trail reroutes further south on this segment, where trail users are being rerouted onto new singletrack and on to Purple Sage Road, which is open to vehicular traffic. Please use caution and be aware of traffic.

August 14 - FUTS Trail users along the Sinclair Wash segment (west end) will continue to experience temporary trail reroutes near University Heights to Mt. Dell due to sewer construction. The reroutes began August 10 and will last approximately three weeks. Trail users should follow all detour signs and stay out of the construction zone for their own safety due to heavy equipment and water/wastewater line trenches. During the weekends, this portion of the FUTS trail is open with fencing and signage in place at the construction site.

Trail users will continue to experience temporary FUTS trail reroutes further south on this segment, where trail users are being rerouted onto new singletrack and on to Purple Sage Road, which is open to vehicular traffic. This reroute is expected to stay in place until October. Please use caution and be aware of traffic.

August 28 - The Fort Tuthill Utility Improvement Project is still underway after a three-week delay in getting ductile iron sewer pipe and also to remove hard rock from the sewer pipe’s route. To help mitigate this delay, the contractor switched the order of operations to complete the waterline component of the project, which has already been tested and inspected by the City.

However, it will be about three weeks before the sewer line work enters the residential area of Mountain Dell. Door hangers regarding the project will be distributed to residences and traffic control signage will be placed before this work begins during the week of September 21. This schedule is, of course, subject to change due to weather or other unforeseen factors.

With regards to trail work, please note that the Solider Trail crossing of the work area is now open. The FUTS trail at University Heights also is now open and should remain so for the remainder of construction except for brief day closures to complete fence work and conduct landscape restoration. However, the Purple Sage to Getaway Trail and Ft. Tuthill trail segments remains closed with detours in place.

September 4 - The FUTS reroutes at the north end of the project, near University Heights, have been removed and trail users are back on the original FUTS alignment. FUTS reroutes at the south end (from Purple Sage Road into Fort Tuthill County Park) remain in place and trail users are temporarily rerouted onto Purple Sage Road. Please watch for vehicular traffic and follow detour signs.

Beginning Tuesday, Sept. 8, the project contractor will begin work in the Mt. Dell community and will be setting up traffic control and a digital message board now in preparation for that. Actual traffic control, flagman, and delineators will be set up next week once work begins. Please be alert and drive with caution in the area.

 Read the updated project schedule

September 11 - The installation of the new 16” water line is now complete and the installation of the 18”, concrete-encased, ductile iron pipe in the floodway north of Mt. Dell is also complete. The project contractor began work in the Mt. Dell community this past week with installation of the sewer across Mt. Dell Road, and set up traffic control, flagger, lane closures, and a digital message board. Please be alert and drive with caution in the area. The contractor is scheduled to begin installation of the 4” service connections the week of Sept. 21. The utility work to date has been inspected and approved by City of Flagstaff, and the City inspection of the Stormwater Pollution Prevention Plan is ongoing.

During the week of Sept. 14, the contractor will be conducting work on the sewer line at the FUTS intersection with Mt. Dell Road. The trail crossing is perpendicular to the sewer line construction. The construction work is expected to be for just one day as the pipe is installed across the FUTS crossing. There will be a flagger working the site and they will direct trail users around the work until the pipe is installed and the road is patched up.

FUTS temporary reroutes at the south end (from Purple Sage Road into Fort Tuthill County Park) remain in place and trail users are temporarily rerouted onto Purple Sage Road. Please watch for vehicular traffic and follow detour signs.

Read the updated project schedule

September 24 - Construction is proceeding down the Mt. Dell Road right of way where 18” diameter pipe and manholes are being installed. Traffic control is in place with single lane closures and flaggers at each end of the construction zone. The 4” service connections are scheduled to be installed beginning the week of Oct. 5 with notification letters sent to the (16) temporary construction easement property owners.

The landscape restoration work at the north end of the project is proposed to happen concurrent to sewer installation through Mt. Dell, with the goal of closing out work entirely by mid-October. Sections of fence that were removed for construction on two private parcels are being replaced this week.

A 60” air release valve will be installed on the waterline at Fort Tuthill on Sept. 30 near the Soldiers Trail crossing.

Staff received an inquiry from a resident of Getaway Trail about the interim condition of the road crossing which was disturbed by the water line construction. It needs to be disturbed again for the sewer construction so the restoration was temporary. Public Works bladed the road last week to improve the interim condition.

A rare native Potentilla was observed near the construction site and work does not appear to impact the population.

FUTS temporary reroutes at the south end (from Purple Sage Road into Fort Tuthill County Park) remain in place and trail users are temporarily rerouted onto Purple Sage Road. Please watch for vehicular traffic and follow detour signs.

October 2 - Construction is proceeding down the Mt. Dell Road right of way where 18” diameter pipe and manholes are being installed for the sewer line. Traffic control is in place with single lane closures and flaggers at each end of the construction zone. Please be alert and drive with caution in the area. The 4” service connections are scheduled to be installed beginning the week of Oct. 12. Installation of an Air Release Valve pre-case manhole is complete.

One section of fence that was removed for construction at the north end of the project has been installed, and the 2nd will be replaced once a manhole on the parcel is coated and sealed.

County Public Works crews completed grading of the turnout onto Getaway Trail to improve the interim condition of the road until the sewer line construction occurs and restoration work can occur.

FUTS temporary reroutes at the south end (from Purple Sage Road into Fort Tuthill County Park) remain in place and trail users are temporarily rerouted onto Purple Sage Road. Please watch for vehicular traffic and follow detour signs. Soldiers Trail crossing at the FUTS is open and all FUTS trail north of Purple Sage is open. Parks & Recreation staff placed trail closed signs at the north and south end of a social trail; though not a sanctioned trail, it is used and crosses the construction zone. 

October 13 - FUTS Trail users are rerouted onto temporary singletrack between Mt. Dell and Purple Sage Rd; please follow signs.

October 16 - The water line work is now 100% complete.

For the sewer line work, a second crew is mobilized to complete work south of Mt. Dell. This crew will be working from Mt. Dell to Fort Tuthill concurrent with the crew working in the Mt. Dell community.

Construction is proceeding down the Mt. Dell Road right of way where 18” diameter pipe and manholes are being installed.

Traffic control is in place with single lane closures and flaggers at each end of the construction zone.

Installation of the 4” private sewer service connections is underway. The Contractor is completing outreach to private parcel owners as work proceeds.

Gabion baskets scour protection will be installed at the north section of the project area beginning next week.

Six (6) additional tree removals were required along the trail between Mt. Dell and Purple Sage.

FUTS temporary reroutes at the south end (from Purple Sage Road into Fort Tuthill County Park) remain in place and trail users are temporarily rerouted onto Purple Sage Road. Please watch for vehicular traffic and follow detour signs.

FUTS Trail users are also rerouted onto temporary singletrack between Mt. Dell and Purple Sage Rd. and should follow signs.

Parks and Recreation staff placed trail closed signs at the north and south end of the social trail at the northerly portion of construction in University Heights. Though not a sanctioned trail, it is well used and crosses the construction zone. 

Project Overview

Fort Tuthill County Park will soon receive an infrastructure overhaul. The Board of Supervisors approved a contract that will construct a new sewer line from University Heights to and within the park, as well as a water line within the park which will connect with City of Flagstaff sewer and water utilities. Both utilities will be owned by the City of Flagstaff upon project completion.

Between July and October 2020, approximately 1.5 miles of sewer and 2,000 linear feet of water infrastructure will be built underneath a stretch of FUTS Trail on the Sinclair Wash Segment (west end). Most of the new infrastructure will be built underneath the FUTS Trail that leads to the park.

What does this mean for park visitors and FUTS Trail users? For park visitors, it means the opportunity for future park amenities such as an expanded campground and permanent year-round restrooms. For FUTS Trail users, it means there are going to be a few trail reroutes this summer along three miles of the Sinclair Wash Segment (west end) leading to Fort Tuthill County Park.

FUTS Trail Sinclair Wash Segment (west end) Construction and Reroute Information

FUTS Trail users should be prepared for trail reroutes beginning in July and ending in October along the Sinclair Wash Segment (west end) leading to Fort Tuthill County Park. Reroutes will be close to the existing FUTS Trail but will bypass the construction work. Trail conditions may be an increased grade, on single-track or along existing unpaved Forest Service Roads which are open to vehicular traffic. Trail users should be prepared for alternating portions of reroutes that change periodically. Directional signage will be provided onsite.

Fort Tuthill Utility Improvement Project_FUTS segment impact Opens in new window

Flagstaff Urban Trails and Bikeways Map - Sinclair Wash Trail (west end) segment 

Maps

FUTS Trail Reroutes

FUTS reroute for Fort Tuthill Utility Improvement Project_singletrack reroute Opens in new window

CPOS Funding

This project is funded through the Coconino Parks and Open Space (CPOS) voter-approved tax initiative. On November 5, 2002, Coconino County residents approved an open space acquisition and park development initiative to raise the County sales tax a one-eighth of one-cent for County parks. The initiative passed with 61% voter approval. The tax concluded in September 2014 with the accumulation of $33 million. It funded the Coconino Parks and Open Space Program (CPOS) to accomplish two goals: development and re-development of community parks in the County system, and acquisition of open space within critical natural areas in the greater Flagstaff area. These funds are only available to CPOS-funded and voter-approved projects and not for other purposes such as COVID-19 projects.

Financial Savings 

The project realizes several cost savings. First, Northern Arizona Healthcare will provide cost reimbursements on a water line that is going to their property near 89A. Second, by installing a water and wastewater line at the same time, construction is happening only once underneath the FUTS Trail and not twice, saving time, money, and more trail reroutes.

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Additional information

Project Engineer: Shephard-Westnitzer, Inc.

Project Contractor: Overley’s

Estimated Construction Cost: Approximately $2 million

Funded By: Coconino Parks and Open Space Program


The Mountain Dell Drainage Improvement Project 

The Mountain Dell Drainage Improvement Project in Mountain Dell will improve the drainage in the community to accommodate a 100-year flood event. The goal of this project is to decrease the size of the flood-affected area. When completed, the project will provide flood mitigation for 28 structures, including approximately 20 homes and the community’s water system, which could positively impact insurance rates for these properties. Read more.