Fort Tuthill Utility Improvement Project

Project Updates (scroll down for pictures)

January 15, 2021 - As of this week, the Contractor has completed installation of 100% of the sewer main. All manholes are to be constructed by the end of this week, and manholes still need to be coated and sealed pending higher temperatures.

Temporary paving (cold patch asphalt) and unpaved street cleanup on Palmer Avenue is now scheduled for January 21-27, and aggregate base (AB) is in place until then. Final paving of the road will be in the spring of 2021.

The Contractor will be preparing the FUTS trail subgrade the week of January 18, and the scheduling of Morning Dew Landscaping to begin final restoration work is pending completion of the FUTS trail subgrade.

FUTS trail detours remain in place at the south end of the project area between Purple Sage Rd. and Fort Tuthill County Park. Temporary FUTS trail re-routes remain in place between Purple Sage Rd. and Mt. Dell, utilizing a temporary trail constructed by Parks and Recreation Staff.

January 8, 2021 - 

1. Sewer Construction

• The Contractor is scheduled to complete the sewer main and manholes this week.

• Manholes need to be coated and sealed, scheduled for week of 1/11, temperatures allowing.

• The private sewer service connections will be completed in spring of 2021 concurrent with final road paving.

2. Paving

• Temporary paving (cold patch asphalt) will be placed over disturbed sections of Palmer Ave. the week of 1/11. Aggregate base is in place until then.

• Final paving of road will be in spring of 2021.

3. Restoration Work

• Morning Dew Landscaping will begin restoration work the week of 1/11

• This includes trail surfaces, landscape, hydroseed, fence replacement.

4. Inspections

• Utility work inspection by the City is on-going.

• Stormwater inspection by the City is on-going.

• City Stormwater will inspect all seeding and landscape restoration.

• Trail to be inspected by City and County staff.

5. Trail Detours

• Detours remain in place at south end of project area between Purple Sage Rd. and Fort Tuthill County Park.

• Trail re-route in place between Purple Sage Rd. and Mt. Dell, utilizing temp trail constructed by Parks and Recreation Staff.

6. Other

• The anticipated completion date of all work excepting final paving and private sewer service connections of proposed to be the week of 1/19/21.

• Installation of private sewer service connections will happen concurrent with final road paving in the spring of 2021 as soon as temperatures allow.

December 31, 2020 - 

Sewer Construction

• The Contractor has completed installation of sewer main to the point of connection in Fort Tuthill County Park.

• Work in Mt. Dell has proceeded past the paved road section with approximately 200 linear feet of sewer main construction to be completed in Mt. Dell. This is the last of the sewer main to be installed.

• 33 of 36 manholes have been installed, pending work epoxy sealing and cover adjustment to finish grade.

• The private sewer service connections will be completed in spring of 2021 concurrent with final road paving.

Paving

• Temporary paving (cold patch asphalt) will be placed over disturbed sections of Palmer Ave. the week of 1/11/21. Aggregate base (AB) is in place until then.

• Final paving of road will be in spring of 2021.

Restoration Work

• Morning Dew Landscaping will begin restoration work the week of 1/4/21.

• This includes trail surfaces, landscape, hydroseed, fence replacement.

Inspections

• Utility work inspection by the City is on-going.

• Stormwater inspection by the City is on-going.

• City Stormwater will inspect all seeding and landscape restoration.

• Trail to be inspected by City and County staff.

Trail Detours

• Detours remain in place at south end of project area between Purple Sage Rd. and Fort Tuthill County Park.

• Trail re-route in place between Purple Sage Rd. and Mt. Dell, utilizing a temporary trail constructed by Parks & Recreation staff.

Other

• The anticipated completion date of all work excepting final paving and private sewer service connections of proposed to be the week of 1/19/21.

• Installation of private sewer service connections will happen concurrent with final road paving in the spring of 2021 as soon as temperatures allow.

December 23, 2020 - 

Sewer Construction:

• The Contractor has completed installation of sewer main to the point of connection in Fort Tuthill County Park.

• Work in Mt. Dell has proceeded past the paved road section with approximately 300 linear feet of sewer main construction to be completed in Mt. Dell. This is the last of the sewer main to be installed.

• 33 of 36 manholes have been installed, pending work epoxy sealing and cover adjustment to finish grade.

• The private sewer service connections will be completed in spring of 2021 concurrent with final road paving.

Paving:

• Temporary paving (cold patch asphalt) will be placed over disturbed sections of Palmer Ave. the week of 1/11/21. Aggregate base (AB) is in place until then.

• Final paving of road will be in spring of 2021.

Restoration Work:

• Morning Dew Landscaping will begin restoration work the week of 1/4/21; this includes trail surfaces, landscape, hydroseed, fence replacement.

Inspections:

• Utility work inspection by the City is on-going.

• Stormwater inspection by the City is on-going.

• City Stormwater will inspect all seeding and landscape restoration.

• Trail to be inspected by City and County staff.

Trail Detours:

• Detours remain in place at south end of project area between Purple Sage Rd. and Fort Tuthill County Park.

• Temporary FUTS trail re-route is in place between Purple Sage Rd. and Mt. Dell, utilizing a temporary trail constructed by Parks and Recreation Staff.

Other:

• The anticipated completion date of all work excepting final paving and private sewer service connections of proposed to be the week of 1/19/21.

• Installation of private sewer service connections will happen concurrent with final road paving in the spring of 2021 as soon as temperatures allow.

December 11, 2020 - Two crews are currently deployed constructing sewer line. Crew 1 is working between Purple Sage Rd. and Fort Tuthill County Park. Crew 2 is working in Mt. Dell.

Crew 1 completed the following work this week: constructed new 8” line within Fort Tuthill; contractor is proposing to complete the tie-in to the existing manhole in Fort Tuthill 12/11; manhole bases between Purple Sage Rd. and Fort Tuthill next Tuesday and Wednesday with the setting of the manholes to happen late next week.

Crew 2 completed the following work this week: continue installation of 18” sewer main and manholes in Palmer Ave.; contractor is scheduled to be out of the paved section of Mt. Dell 12/11; traffic control in place during work hours at location of sewer line installation.

FUTS temporary detours remain in place at the south end of project area along Purple Sage Rd. and in Fort Tuthill County Park. FUTS trail users are rerouted onto temporary singletrack between Mt. Dell and Purple Sage Rd. and users should follow signs. 

The anticipated completion date for sewer main construction is proposed to be in January 2021, dependent on weather and rock excavation. Landscape and trail restoration is proposed to begin in early January, weather allowing. Paving work on Palmer Ave. will need to happen in spring 2021. For the interim, winter paving will be cold patch over the existing sewer trench. Contractor will also complete the remaining 4” service connections at that time to minimize the amount of cold patch that will need to be in place through winter. 

December 4, 2020Two crews are currently deployed constructing sewer line. Crew 1 is working between Purple Sage Rd. and Fort Tuthill County Park. Crew 2 is working in Mt. Dell.

Crew 1 completed the following work this week:

• Constructed new 12” sewer line into Fort Tuthill County Park. Sewer main is proposed to be connected to current terminus in Fort Tuthill next week.

• Completed construction manholes between Purple Sage Rd. to Getaway Trail.

• Crew will be installing manholes between Getaway Trail and Fort Tuthill next week.

Crew 2 completed the following work this week:

• Continue installation of 18” sewer main and manholes in Palmer Ave.

• Traffic control in place during work hours at location of sewer line installation in Palmer Ave.

FUTS temporary detours remain in place at the south end of project area along Purple Sage Rd. and in Fort Tuthill County Park. FUTS trail users are rerouted onto temporary singletrack between Mt. Dell and Purple Sage Rd. and users should follow signs.

The Contractor has adjusted the anticipated completion date to January 2021 dependent on what utility conflicts, rock and trenching conditions are encountered moving through the remaining sections in Mt. Dell. Paving work on Palmer Ave. may need to be in spring, weather and temperature dependent.

November 25, 2020Two crews are currently deployed constructing sewer line. Crew 1 is working between Purple Sage Rd. and Fort Tuthill County Park. Crew 2 is working in Mt. Dell.

Crew 1 completed the following work this week:

• Installation of new 18” & 12” sewer lines working north to south, installation of line across Getaway Trail was completed.

• Concrete manhole bases from Purple Sage Rd. to Getaway Trail were poured on Nov. 24.

• Site was cleaned and secured for the holiday weekend.

Crew 2 completed the following work this week:

• Completed the Mt. Dell Water Co. water line relocation, inspected and accepted by Mt. Dell Water.

• Resumed 18” sewer main construction.

• Working through significant rock and trench collapse, slowing installation to ~10 linear feet of sewer/day.

Phase I paving was completed by LP’s Excavating. Paving extents are from where the sewer entered the roadway NE of Mt. Dell then to the SW in the east bound lane of Mt. Dell Rd. for ~1000 linear feet. Paving was inspected by the City. LP’s is completing cleanup Wednesday, Nov. 25.

Installation of the gabion basket erosion control mats was completed this week.

All traffic control on Mt. Dell Rd. has been removed for the holiday weekend with AB patching to finish grade over existing trench.

FUTS temporary detours remain in place at the south end of project area along Purple Sage Rd. and in Fort Tuthill County Park. FUTS trail users are rerouted onto temporary singletrack between Mt. Dell and Purple Sage Rd. and users should follow signs.

The Contractor has adjusted the anticipated completion date to December, possibly into January 2021 dependent on what utility conflicts, rock and trenching conditions are encountered moving through the remaining sections in Mt. Dell.

November 20, 2020Two crews are currently deployed constructing sewer line. Crew 1 is working between Purple Sage Rd. and Fort Tuthill County Park. Crew 2 completed a Mt. Dell Water Company water line relocation this week; and Crew 2 has prepped and is completing paving on Mt. Dell Rd.

The paving at the east section of Mt. Dell Rd./Palmer Ave. is being completed 11/20 and 11/23. Traffic control will be modified during paving operations including the use of signalized traffic control. This will be in place the weekend of 11/20.

The remaining pavement will be scheduled as soon as sewer work can be completed in the westerly road section in Mt. Dell.

Traffic control is in place on Palmer Ave. and on FS 532.

The Contractor has been directed to continue to place additional AB material on Mt. Dell Rd. as needed to keep the surface as smooth and drivable for the public as is reasonably possible until paving can be completed.

Gabion basket erosion control mats were installed this week.

FUTS temporary detours remain in place at the south end of project area along Purple Sage Rd. and in Fort Tuthill County Park. FUTS trail users are rerouted onto temporary singletrack between Mt. Dell and Purple Sage Rd. and users should follow signs.

The Contractor has adjusted the anticipated completion date to December.

November 13, 2020 - Two crews are currently deployed to construct the sewer line; Crew 1 is working between Purple Sage Rd. and Fort Tuthill County Park, and Crew 2 is installing manholes at the Purple Sage Rd. crossing. Crew 2 is also working with Arizona Public Service (APS) to complete sewer installation in close proximity to an existing APS power pole at Purple Sage Rd.

A Mt. Dell Water Company water main was encountered in Palmer Ave. The line runs through the sewer alignment at a shallow angle for approximately 250LF and the line will need to be relocated. We have reached out to Mt. Dell Water Company to coordinate the relocation and work has been suspended in Palmer Ave. until the water line can be relocated.

The east section of Mt. Dell Rd./Palmer Ave. is proposed to be paved at the end of next week. Traffic control will be modified during paving operations including the use of signalized traffic control. Traffic will be restricted to one lane for Nov. 18-20 for preparation and paving. The remaining pavement will be scheduled as soon as work can be completed in the westerly road section in Mt. Dell.

Traffic control is in place on Palmer Ave. and on FS 532.

The Contractor has been directed to continue to place additional AB material on Mt. Dell Rd. as needed to keep the surface as smooth and drivable for the public as is reasonably possible.

FUTS temporary detours remain in place at the south end of project area along Purple Sage Rd. and in Fort Tuthill County Park. FUTS Trail users are rerouted onto temporary singletrack between Mt. Dell and Purple Sage Rd. and users should follow signs.

The Contractor has adjusted the anticipated completion date to December.

November 6, 2020 - Work has been progressing on the Fort Tuthill Utility Improvement Project, with this week’s work expanding on the work mentioned last week.

Two crews continue to work on the project. Crew 2 has been making good progress between Mt. Dell and Purple Sage Rd. and will cross Purple Sage Rd. next week, weather allowing. Crew 1 is working through Mt. Dell on Palmer Ave. Where the trench is deep, they are working around rock and clay/unsuitable material and the going is slow.

Pavement submittals have been received and the Contractor is proposing a two-phased paving operation in light of the slow going in Palmer Ave. First paving will occur at the eastern end of Mt. Dell Rd. while Crew 1 continues to install sewer main on Palmer Ave. The 2nd phase of paving is proposed to happen a week or two later once Crew 1 completes work on Palmer and moves to the west out of the paved road and into an unpaved road section.

October 30, 2020 - For the sewer line work, two crews are currently deployed, with Crew 1 working in the Mt. Dell community and installing 18" sewer main and 4" private sewer service connections, and Crew 2 working south of the community in the FUTS trail and installing 18" sewer main.

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

Gabion baskets scour protection is being installed at the north section of the project and will continue through next week.

Rock and unsuitable material are slowing progress in Mt. Dell. The project will conduct complete pavement restoration for all disturbed areas necessitated by the construction of the new sewer main and sewer service lateral connections within Mt. Dell roads. The pavement will be replaced per City of Flagstaff standards for pavement replacement in existing paved streets (City of Flagstaff Standard Detail 9-01-030). This pavement work is projected to happen at the end of November and is anticipated to take about two days to complete. The contractor has been directed to place additional AB material on Mt. Dell Rd. as needed to keep the surface as smooth and drivable for the public as reasonably as possible.

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.

The contractor is anticipating project completion in early December.

October 23, 2020 – The work from last week continues. Additionally, a closeout plan for the social trail at the north end of the project was reviewed and endorsed by the landowner, and the restoration work on the social trail will begin soon.  

October 16, 2020The water line work is 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.

October 2, 2020 – 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.

September 24, 2020 - 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.

September 11, 2020 – 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.

September 4, 2020 - 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 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.

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, flaggers, and delineators will be set up next week once work begins. Please be alert and drive with caution in the area.

August 14, 2020 - 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 6, 2020 - 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.

July 31, 2020 - 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.

July 24, 2020 - 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 13, 2020 - 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.

June 12, 2020 - Read the press release

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 2020 and January 2021 (updated), 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 

FUTS Trail Reroutes

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.