HomeMy WebLinkAbout008 - Appendix G - Water Sewer Storm Design Report
JOB NO. B24-005
MONTANA | WASHINGTON | IDAHO | NORTH DAKOTA | PENNSYLVANIA
APRIL 2024
406.586.0277
tdhengineering.com
234 East Babcock Street
Suite 3
Bozeman, MT 59715
CLIENT ENGINEER
Intrinsik Architecture
106 E. Babcock Street, Suite 1A
Bozeman, MT 59715
TD&H Engineering
234 East Babcock Street, Suite 3
Bozeman, MT 59715
Engineer: Cody Croskey, PE
BOUTIQUE HOTEL MENDENHALL
BOZEMAN, MONTANA
BASIS OF DESIGN REPORT
Image courtesy of Intrinsik Architecture
04/01/2024
B24-005 Boutique Hotel Mendenhall Page 1 of 3
BOUTIQUE HOTEL MENDENHALL
ENGINEERING DESIGN REPORT
APRIL 2024
Purpose and Introduction
The purpose of this report is to explain how water, sanitary sewer, and storm drainage
improvements will be designed to meet the City of Bozeman requirements and Montana
Public Works Standard Specifications (MPWSS) to provide service to a new hotel
building in downtown Bozeman, Montana.
The project is located at 302 E. Mendenhall Street on a 0.41-acre parcel that is currently
vacant within Bozeman’s Downtown Business District (B-3).
Proposed development includes construction of a new multi-story 71-room hotel building
with a ground floor restaurant and roof-top lounge. Site improvements will include
sidewalks, an alley-facing service entry, and outdoor patio spaces incorporating
permeable pavers adjacent to Bozeman Creek.
Design Report
Water
This site has no existing uses or live water services extended to the property. According
to record drawings, historic water services to this lot were not reconnected with the 2013
water main renovations project in Mendenhall Street.
The domestic water demand for the new 71-room hotel building is estimated using actual
water meter data from four comparable facilities within the City of Bozeman. The hotels
chosen for comparison are also located in downtown Bozeman and contain restaurant
and bar amenities. The new estimated domestic water demands for the project are
summarized in Table 1 below with supporting assumptions and calculations provided in
Appendix A in accordance with C.O.B. DSSP Section V.A.4.
Table 1:
Estimated Water Demands
Average Day Max. Day Peak Hour
New Building Demand 5,680 gpd 9.1 gpm 11.8 gpm
Irrigation at the site will also be supplied from the building’s public water supply.
A new 4-inch domestic water service and 6-inch fire service line will be extended to the
new building from the water main in E. Mendenhall Street. Final service sizing will be
verified by the mechanical engineer in accordance with the Uniform Plumbing Code,
actual fixture unit counts, and fire protection system requirements. The services will be
Class 51 ductile iron and will be installed per the City of Bozeman Design Standards and
Modifications to Montana Public Works Standard Specifications (MPWSS).
The fire flow requirement for the new building is 1,500 gpm based on building size and
B24-005 Boutique Hotel Mendenhall Page 2 of 3
construction type as determined following International Fire Code Appendix B criteria.
Fire hydrant flow reports were provided by the City Engineering Department for the
nearest existing fire hydrants to confirm available flows in accordance with C.O.B. DSSP
Section V.A.4 (max day + fire flow = 1,509 gpm). The hydrant flow data indicates an
available fire flow of 12,000 to 13,200 gpm before dropping below a residual pressure of
20 psi. The project fire flow determination and fire hydrant flow reports are provided in
appendix A.
A new mid-block fire hydrant will be installed along E. Mendenhall Street to provide
additional fire protection coverage with adjacency to the new building’s Fire Department
Connection (FDC).
Sewer
This site has no existing uses or live sewer services. Two un-used sewer services are
proposed to be abandoned in place in front of the site.
The sewer demand for the new 71-room hotel building is also estimated using actual
water meter data from the four comparable facilities within the City of Bozeman. This
may be slightly conservative as some of the facilities’ irrigation demand is also likely
included with the water meter records which is not contributing to their sewer demands.
The new estimated domestic sewer demands for the project are summarized in Table 2
below with supporting assumptions and calculations provided in Appendix B in
accordance with C.O.B. DSSP Section V.B and the 2015 Wastewater Facilities Plan.
Table 2:
Estimated New Sewer Demands
Average Day (gpd) Peak Hour (gpm)
New Building Demand 5,680 -
Lot Infiltration 62 -
Total Sewer Demand 5,742 16.84
A new 6-inch sewer service is proposed to extend from the new building to the sewer
main in E. Mendenhall Street. Final service sizing for this project will be verified by the
mechanical engineer in accordance with the Uniform Plumbing Code and actual fixture
unit counts. The new sewer service line will be SDR-26 PVC and will be installed per the
City of Bozeman Design Standards and Modifications to Montana Public Works
Standard Specifications (MPWSS).
Storm Drainage
Existing Conditions: The existing project site consists of a vacant gravel lot that slopes to
the north toward E. Mandeville Street. No existing stormwater management controls are
evident at the site. The site runoff enters the City’s storm sewer system via curb inlets
adjacent to Bozeman Creek.
Stormwater Quantity: The proposed site development includes a new multi-story building
with a footprint and roof that will cover most of the property. Sidewalks and patio spaces
with permeable pavers are proposed along the east side of the building with a landscape
buffer adjacent to Bozeman Creek.
B24-005 Boutique Hotel Mendenhall Page 3 of 3
All of the stormwater from the building roof areas will be collected and conveyed via
internal roof drain piping to an underground infiltration chamber designed to retain &
infiltrate the 10-yr, 2-hr design storm for the site. Stormwater from the onsite sidewalks
and patio spaces will drain to the permeable paver system which will also be connected
via underdrains to the infiltration chamber. Stormwater from the public sidewalks along
the project frontage will continue to drain to E. Mendenhall Street. No runoff from the
proposed site improvements will flow directly toward the Bozeman Creek streambanks.
Overflows from the 25-yr storm event will be piped to the existing storm inlet in E.
Mendenhall Street, and overflows from larger storm events will surface flow directly to E.
Mendenhall Street. Some overflows from the small service entry area at the south end of
the building will flow to the existing storm inlet and 36” storm drain in the alley.
Stormwater runoff calculations for the site are provided in Appendix C.
Stormwater Quality: As mentioned previously, stormwater runoff from the building roof,
sidewalks, and permeable patio areas will be collected and routed to a sub-surface
infiltration chamber facility designed to capture and fully retain/infiltrate the flow from the
10-yr, 2-hr storm event. The design storm retention volume has also been confirmed to
have enough storage capacity to capture the first half inch of rainfall from the building
and associated impervious areas as shown in the stormwater runoff calculations
provided in Appendix C.
Conveyance: The 25-yr overflow route from the sub-surface stormwater chamber facility
will consist of a new pipe connected to the adjacent storm inlet in E. Mendenhall Street.
A hydraulic pipe sizing calculation demonstrating capacity to convey overflow from the
25-yr storm event is provided in Appendix C.
Infiltration: A geotechnical drilling investigation was conducted at the site on February
22, 2024. Groundwater was observed in all 3 bore holes ranging in depths of 16.8 to
18.7 feet below the ground surface. Two groundwater monitoring pipes were also
installed at opposite corners of the site and initial monitoring for 2024 showing
groundwater levels at 15.5 to 17.75 feet deep, and monitoring will continue throughout
the spring of 2024 to verify the seasonal high.
The bottom of the proposed infiltration chambers will be approximately 5 to 6 feet below
the ground surface and will be over-excavated to tie into native gravels which were
encountered at depths ranging from 7 to 9.5 feet deep. Therefore, it is anticipated that
the underlying soils will be conducive to infiltration and groundwater will be sufficiently
deep to allow for a subsurface retention/infiltration strategy to be successful at this site.
The geotechnical investigation logs and on-site groundwater monitoring results are
provided in Appendix C.
APPENDIX A
Water Calculations
Boutique Hotel Mendenhall
302 E. Mendenhall Street
Date: 03.28.24
Water Demand Calculation
Domestic Water Demand:
Hotel Use:
Rooms =71
Average Demand per Room =80.0 Gal./Day/Room (See Comparable Facility Data)
Average Day Demand =5,680 GPD
Peak Hour Demand:
Average Day Demand =5,680 GPD
Average Day Demand =3.9 gpm (GPD / 1,440 minutes)
Maximum Day Demand =9.1 gpm (Ave. Day x Peaking Factor = 2.3)
Peak Hour Demand =11.8 gpm (Ave. Day x Peaking Factor = 3)
Fire Flow Requirement - New Building:
IBC Construction Type =1A & IIIA
Fire Flow Calculation Area =57,363 sf
Automatic Fire Sprinkler System =Yes
Fire Sprinkler System Type =NFPA 13R
Required Fire Flow =1,500 gpm (per IFC Appendix B)
Comparable Hotel Water & Sewer Demand Analysis
(Data through April 2023)
Summary
Notes:
1. Downtown Bozeman Hotels were used as a comparison because they were recently constructed, have high occupancy rates
and exhibit similar uses as the proposed Boutique Hotel Mendenhall.
2. Because irrigation is minimal Downtown, average day sewer demands are assumed to be
approximately equal to average day water demands.
Hotel
ADF
Consumption
(Hundred Cubic
Feet)
ADF
Consumption
(Gallons)
ADF
Consumption
(Hundred Cubic
Feet)
ADF
Consumption
(Gallons)
ADF
Consumption
(Hundred Cubic
Feet)
ADF
Consumption
(Gallons)
ADF
Consumption
(Hundred Cubic
Feet)
ADF
Consumption
(Gallons)
Armory 4.22 3,155.27 11.94 8,929.52 12.48 9,333.03 12.49 9,340.78
Element 7.93 5,928.34 9.72 7,269.99 9.05 6,767.43 8.72 6,522.70
Residence Inn ND ND 7.10 5,310.10 11.03 8,250.19 10.62 7,944.42
AC Marriott ND ND ND ND 9.47 7,081.12 11.53 8,628.03
Hotel Year with Largest
ADF
ADF
Consumption
(Gallons)
# Rooms ADF per Room
(Gallons)
Armory Last 12 Months 9,340.78 122 76.56
Element 2021 7,269.99 104 69.90
Residence Inn 2022 8,250.19 104 79.33
AC Marriott Last 12 Months 8,628.03 143 60.34
Use: 80 Gal./Day/Room
Avg. Day Flow (ADF)
Last 12 Months
Summary of Average Day Water Meter Consumption for Downtown Bozeman Hotels
Summary of Per Room Average Day Consumption for Downtown
Bozeman Hotels
Avg. Day Flow (ADF)
2020
Avg. Day Flow (ADF)
2021
Avg. Day Flow (ADF)
2022
1 OF 8
Comparable Hotel Water & Sewer Demand Analysis
Water Meter Data for: Armory Hotel
# Rooms 122 rooms
Resturant Full Restaurant plus Rooftop Bar/Restaurant
Hotel Meter
Total Consumption
(Hundred Cubic Feet)
Meter Read
Month
Meter Read
Day
Meter Read
Year
Amory 70356673 7.22 2 5 20
Amory 70356673X 0.20 2 5 20
Amory 70356673 40.75 3 4 20
Amory 70356673X 0.20 3 5 20
Amory 70356673 7.79 4 7 20
Amory 70356673X 0.40 4 2 20
Amory 70356673 27.72 5 14 20
Amory 70356673X 1.10 5 12 20
Amory 70356673 28.58 6 2 20
Amory 70356673X 0.80 6 2 20
Amory 70356673 14.60 7 1 20
Amory 70356673X 1.30 7 1 20
Amory 70356673 30.07 8 4 20
Amory 70356673X 5.50 8 6 20
Amory 70356673 143.18 9 2 20
Amory 70356673X 12.40 9 2 20
Amory 70356673 350.75 10 6 20
Amory 70356673X 63.80 10 7 20
Amory 70356673 256.93 11 4 20
Amory 70356673X 37.70 11 4 20
Amory 70356673 180.82 12 2 20
Amory 70356673X 18.30 11 30 20
Amory 70356673 271.86 1 6 21
Amory 70356673X 37.70 1 7 21
1,539.67
4.22
Armory 70356673 205.74 2 2 21
Armory 70356673X 26.70 2 2 21
Armory 70356673 295.48 3 3 21
Armory 70356673X 73.30 3 5 21
Armory 70356673 281.47 4 2 21
Armory 70356673X 51.90 4 2 21
Armory 70356673 299.11 5 5 21
Armory 70356673X 48.40 5 5 21
Armory 70356673 278.22 6 3 21
Armory 70356673X 51.80 6 1 21
Armory 70356673 330.20 7 2 21
Armory 70356673X 92.80 7 2 21
Armory 70356673 358.87 8 3 21
Armory 70356673X 104.20 8 3 21
Armory 70356673 304.40 9 2 21
Armory 70356673X 66.60 9 2 21
Armory 70356673 339.44 10 5 21
Armory 70356673X 77.40 10 5 21
Armory 70356673 269.76 11 4 21
Armory 70356673X 63.90 11 8 21
Armory 70356673 297.72 12 6 21
Armory 70356673X 50.30 12 6 21
Armory 70356673 318.51 1 7 22
Armory 70356673X 71.10 1 6 22
4,357.32
11.94
TOTAL USE 2020
AVG DAY 2020
TOTAL USE 2021
AVG DAY 2021
2 OF 8
Armory 70356673 241.78 2 4 22
Armory 70356673X 42.00 2 4 22
Armory 70356673 260.86 3 2 22
Armory 70356673X 56.10 3 2 22
Armory 70356673 331.64 4 5 22
Armory 70356673X 73.20 4 5 22
Armory 70356673 248.97 5 4 22
Armory 70356673X 43.80 5 4 22
Armory 70356673 280.56 6 2 22
Armory 70356673X 57.70 6 2 22
Armory 70356673 378.64 7 5 22
Armory 70356673X 114.10 7 5 22
Armory 70356673 330.32 8 2 22
Armory 70356673X 94.90 8 2 22
Armory 70356673 344.92 9 2 22
Armory 70356673X 100.00 9 2 22
Armory 70356673 354.39 10 4 22
Armory 70356673X 95.00 10 4 22
Armory 70356673 321.95 11 3 22
Armory 70356673X 63.40 11 2 22
Armory 70356673 262.99 12 2 22
Armory 70356673X 49.70 12 2 22
Armory 70356673 334.50 1 5 23
Armory 70356673X 72.80 1 5 23
4,554.22
12.48
Armory 70356673 280.56 6 2 22
Armory 70356673X 57.70 6 2 22
Armory 70356673 378.64 7 5 22
Armory 70356673X 114.10 7 5 22
Armory 70356673 330.32 8 2 22
Armory 70356673X 94.90 8 2 22
Armory 70356673 344.92 9 2 22
Armory 70356673X 100.00 9 2 22
Armory 70356673 354.39 10 4 22
Armory 70356673X 95.00 10 4 22
Armory 70356673 321.95 11 3 22
Armory 70356673X 63.40 11 2 22
Armory 70356673 262.99 12 2 22
Armory 70356673X 49.70 12 2 22
Armory 70356673 334.50 1 5 23
Armory 70356673X 72.80 1 5 23
Armory 70356673 279.91 2 3 23
Armory 70356673X 54.00 2 3 23
Armory 70356673 283.00 3 2 23
Armory 70356673X 63.40 3 2 23
Armory 70356673 296.22 4 4 23
Armory 70356673X 54.80 4 4 23
Armory 70356673 228.90 5 2 23
Armory 70356673X 41.90 5 2 23
4,558.00
12.49
AVG DAY 2022
TOTAL USE LAST 12 MONTHS
AVG DAY LAST 12 MONTHS
TOTAL USE 2022
3 OF 8
Comparable Hotel Water & Sewer Demand Analysis
Water Meter Data for: Element Hotel
# Rooms 104 rooms
Resturant Full Restaurant
Hotel Meter
Total Consumption
(Hundred Cubic Feet)
Meter Read
Month
Meter Read
Day
Meter Read
Year
Element 70302789X 3.10 2 5 20
Element 70302789 258.90 2 5 20
Element 70302789X 2.30 3 6 20
Element 70302789 264.05 3 6 20
Element 70302789X 0.90 4 7 20
Element 70302789 148.09 4 7 20
Element 70302789X 0.40 5 18 20
Element 70302789 131.06 5 18 20
Element 70302789X 0.10 6 4 20
Element 70302789 103.99 6 4 20
Element 70302789X 1.50 7 8 20
Element 70302789 320.18 7 8 20
Element 70302789X 4.80 8 6 20
Element 70302789 354.81 8 6 20
Element 70302789X 4.70 9 4 20
Element 70302789 326.51 9 4 20
Element 70302789X 4.00 10 7 20
Element 70302789 355.99 10 7 20
Element 70302789X 1.60 11 6 20
Element 70302789 225.88 11 6 20
Element 70302789X 0.80 12 4 20
Element 70302789 144.71 12 4 20
Element 70302789X 1.10 1 8 21
Element 70302789 233.37 1 8 21
2,892.84
7.93
Element 70302789X 0.90 2 4 21
Element 70302789 196.07 2 4 21
Element 70302789X 1.20 3 5 21
Element 70302789 232.38 3 5 21
Element 70302789X 1.50 4 6 21
Element 70302789 292.77 4 6 21
Element 70302789X 2.40 5 4 21
Element 70302789 245.56 5 7 21
Element 70302789X 2.90 6 3 21
Element 70302789 286.94 6 4 21
Element 70302789X 8.50 7 2 21
Element 70302789 400.58 7 7 21
Element 70302789X 6.40 8 3 21
Element 70302789 336.48 8 5 21
Element 70302789X 8.50 9 2 21
Element 70302789 409.56 9 6 21
Element 70302789X 9.90 10 5 21
Element 70302789 362.91 10 7 21
Element 70302789X 5.00 11 8 21
Element 70302789 281.11 11 8 21
Element 70302789X 2.20 12 7 21
Element 70302789 204.39 12 7 21
Element 70302789X 1.40 1 7 22
Element 70302789 247.97 1 7 22
3,547.52
9.72
TOTAL USE 2020
TOTAL USE 2021
AVG DAY 2020
AVG DAY 2021
4 OF 8
Element 70302789X 1.70 2 4 22
Element 70302789 231.18 2 4 22
Element 70302789X 1.70 3 2 22
Element 70302789 277.95 3 8 22
Element 70302789X 2.20 4 7 22
Element 70302789 248.18 4 7 22
Element 70302789X 2.10 5 4 22
Element 70302789 200.85 5 6 22
Element 70302789X 2.20 6 2 22
Element 70302789 248.04 6 6 22
Element 70302789X 5.10 7 5 22
Element 70302789 361.32 7 6 22
Element 70302789X 5.20 8 2 22
Element 70302789 366.58 8 4 22
Element 70302789X 5.20 9 2 22
Element 70302789 406.30 9 7 22
Element 70302789X 5.20 10 6 22
Element 70302789 267.92 10 6 22
Element 70302789X 0.40 11 2 22
Element 70302789 192.57 11 4 22
Element 70302789X 1.90 12 4 22
Element 70302789 202.36 12 6 22
Element 70302789X 1.70 1 6 23
Element 70302789 264.44 1 6 23
3,302.29
9.05
Element 70302789X 2.20 6 2 22
Element 70302789 248.04 6 6 22
Element 70302789X 5.10 7 5 22
Element 70302789 361.32 7 6 22
Element 70302789X 5.20 8 2 22
Element 70302789 366.58 8 4 22
Element 70302789X 5.20 9 2 22
Element 70302789 406.30 9 7 22
Element 70302789X 5.20 10 6 22
Element 70302789 267.92 10 6 22
Element 70302789X 0.40 11 2 22
Element 70302789 192.57 11 4 22
Element 70302789X 1.90 12 4 22
Element 70302789 202.36 12 6 22
Element 70302789X 1.70 1 6 23
Element 70302789 264.44 1 6 23
Element 70302789X 1.50 2 3 23
Element 70302789 232.39 2 6 23
Element 70302789X 1.30 3 2 23
Element 70302789 226.84 3 6 23
Element 70302789X 1.00 4 4 23
Element 70302789 223.60 4 5 23
Element 70302789X 1.00 5 2 23
Element 70302789 158.81 5 4 23
3,182.87
8.72
AVG DAY 2022
TOTAL USE LAST 12 MONTHS
AVG DAY LAST 12 MONTHS
TOTAL USE 2022
5 OF 8
Comparable Hotel Water & Sewer Demand Analysis
Water Meter Data for: Residence Inn Downtown
# Rooms 104 rooms
Resturant Does not have full restaurant
Hotel Meter
Total Consumption
(Hundred Cubic Feet)
Meter Read
Month
Meter Read
Day
Meter Read
Year
Residence Inn 70387570X 1.20 2 4 21
Residence Inn 70387570 5.38 2 4 21
Residence Inn 70387570X 1.00 3 5 21
Residence Inn 70387570 5.19 3 5 21
Residence Inn 70387570X 1.20 4 6 21
Residence Inn 70387570 34.17 4 6 21
Residence Inn 70387570X 1.20 5 7 21
Residence Inn 70387570 21.65 5 7 21
Residence Inn 70387570X 5.20 6 4 21
Residence Inn 70387570 57.40 6 4 21
Residence Inn 70387570X 34.40 7 7 21
Residence Inn 70387570 132.88 7 7 21
Residence Inn 70387570X 73.90 8 5 21
Residence Inn 70387570 294.06 8 5 21
Residence Inn 70387570X 0.00 7 7 21
Residence Inn 70387570 0.00 7 7 21
Residence Inn 70387570X 0.00 7 7 21
Residence Inn 70387570 0.00 7 7 21
Residence Inn 70387570X 142.90 9 7 21
Residence Inn 70387570 576.24 9 7 21
Residence Inn 70387570X 46.10 10 7 21
Residence Inn 70387570 229.57 10 7 21
Residence Inn 70387570X 51.10 11 8 21
Residence Inn 70387570 234.00 11 8 21
Residence Inn 70387570X 67.30 12 7 21
Residence Inn 70387570 211.36 12 7 21
Residence Inn 70387570X 92.00 1 7 22
Residence Inn 70387570 271.76 1 7 22
2,591.16
7.10
Residence Inn 70387570X 82.70 2 4 22
Residence Inn 70387570 239.60 2 4 22
Residence Inn 70387570X 97.00 3 8 22
Residence Inn 70387570 284.93 3 8 22
Residence Inn 70387570X 87.90 4 7 22
Residence Inn 70387570 255.94 4 7 22
Residence Inn 70387570X 81.50 5 6 22
Residence Inn 70387570 205.34 5 6 22
Residence Inn 70387570X 80.20 6 6 22
Residence Inn 70387570 217.47 6 6 22
Residence Inn 70387570X 101.50 7 6 22
Residence Inn 70387570 260.08 7 6 22
Residence Inn 70387570X 104.90 8 4 22
Residence Inn 70387570 312.77 8 4 22
Residence Inn 70387570X 102.20 9 7 22
Residence Inn 70387570 319.49 9 7 22
Residence Inn 70387570X 85.80 10 6 22
Residence Inn 70387570 258.43 10 6 22
Residence Inn 70387570X 75.10 11 4 22
Residence Inn 70387570 180.49 11 4 22
Residence Inn 70387570X 97.60 12 6 22
Residence Inn 70387570 192.33 12 6 22
Residence Inn 70387570X 81.70 1 6 23
Residence Inn 70387570 220.86 1 6 23
4,025.83
11.03
TOTAL USE 2021
AVG DAY 2021
TOTAL USE 2022
AVG DAY 2022
6 OF 8
Residence Inn 70387570X 80.20 6 6 22
Residence Inn 70387570 217.47 6 6 22
Residence Inn 70387570X 101.50 7 6 22
Residence Inn 70387570 260.08 7 6 22
Residence Inn 70387570X 104.90 8 4 22
Residence Inn 70387570 312.77 8 4 22
Residence Inn 70387570X 102.20 9 7 22
Residence Inn 70387570 319.49 9 7 22
Residence Inn 70387570X 85.80 10 6 22
Residence Inn 70387570 258.43 10 6 22
Residence Inn 70387570X 75.10 11 4 22
Residence Inn 70387570 180.49 11 4 22
Residence Inn 70387570X 97.60 12 6 22
Residence Inn 70387570 192.33 12 6 22
Residence Inn 70387570X 81.70 1 6 23
Residence Inn 70387570 220.86 1 6 23
Residence Inn 70387570X 103.60 2 6 23
Residence Inn 70387570 241.97 2 6 23
Residence Inn 70387570X 65.00 3 6 23
Residence Inn 70387570 216.88 3 6 23
Residence Inn 70387570X 83.50 4 5 23
Residence Inn 70387570 237.33 4 5 23
Residence Inn 70387570X 60.90 5 4 23
Residence Inn 70387570 176.52 5 4 23
3,876.62
10.62AVG DAY LAST 12 MONTHS
TOTAL USE LAST 12 MONTHS
7 OF 8
Comparable Hotel Water & Sewer Demand Analysis
Water Meter Data for: AC Marriott
# Rooms 143 rooms
Resturant Rooftop Bar/Restaurant
Hotel Meter
Total Consumption
(Hundred Cubic Feet)
Meter Read
Month
Meter Read
Day
Meter Read
Year
AC Marriott 70381450 155.46 2 4 22
AC Marriott 70381450X 0.80 2 4 22
AC Marriott 70381450 100.13 3 8 22
AC Marriott 70381450X 1.20 3 8 22
AC Marriott 70381450 0.00 4 1 22
AC Marriott 70381450 119.90 4 1 22
AC Marriott 70381450X 2.70 4 1 22
AC Marriott 70381450X 0.00 4 1 22
AC Marriott 70381450 13.47 4 6 22
AC Marriott 70381450X 0.80 4 7 22
AC Marriott 70381450 122.01 5 2 22
AC Marriott 70381450X 27.70 5 6 22
AC Marriott 70381450 206.30 6 4 22
AC Marriott 70381450X 53.30 6 6 22
AC Marriott 70381450 314.57 7 6 22
AC Marriott 70381450X 81.90 7 6 22
AC Marriott 70381450 364.42 8 3 22
AC Marriott 70381450X 95.00 8 4 22
AC Marriott 70381450 395.68 9 6 22
AC Marriott 70381450X 95.20 9 7 22
AC Marriott 70381450 314.43 10 6 22
AC Marriott 70381450X 72.70 10 6 22
AC Marriott 70381450 257.85 11 4 22
AC Marriott 70381450X 50.80 11 4 22
AC Marriott 70381450 248.36 12 4 22
AC Marriott 70381450X 49.00 12 6 22
AC Marriott 70381450 264.48 1 6 23
AC Marriott 70381450X 47.20 1 6 23
3,455.36
9.47
AC Marriott 70381450 206.30 6 4 22
AC Marriott 70381450X 53.30 6 6 22
AC Marriott 70381450 314.57 7 6 22
AC Marriott 70381450X 81.90 7 6 22
AC Marriott 70381450 364.42 8 3 22
AC Marriott 70381450X 95.00 8 4 22
AC Marriott 70381450 395.68 9 6 22
AC Marriott 70381450X 95.20 9 7 22
AC Marriott 70381450 314.43 10 6 22
AC Marriott 70381450X 72.70 10 6 22
AC Marriott 70381450 257.85 11 4 22
AC Marriott 70381450X 50.80 11 4 22
AC Marriott 70381450 248.36 12 4 22
AC Marriott 70381450X 49.00 12 6 22
AC Marriott 70381450 264.48 1 6 23
AC Marriott 70381450X 47.20 1 6 23
AC Marriott 70381450 256.43 2 3 23
AC Marriott 70381450X 51.80 2 6 23
AC Marriott 70381450 281.48 3 5 23
AC Marriott 70381450X 64.60 3 5 23
AC Marriott 70381450 305.83 4 5 23
AC Marriott 70381450X 74.00 4 5 23
AC Marriott 70381450 211.17 5 3 23
AC Marriott 70381450X 53.70 5 3 23
4,210.20
11.53
TOTAL USE 2022
AVG DAY 2022
TOTAL USE LAST 12 MONTHS
AVG DAY LAST 12 MONTHS
8 OF 8
CITY OF BOZEMAN
Fire Flow Request Form
PHONE (406) 582-3200 FAX (406) 582-3201
Date March 27, 2024
Location 302 E Mendenhall (FFR-5896)
Pressure Zone HGL 5125 (S)
GIS Hydrant ID# 72 and 74
Adjacent Main Size 8-inch DI
Model Scenario Maximum Day Demand, Steady State, Fire Flow
Reference 2017 Water Facility Plan Update1
Hydrant Curves An Excel Spreadsheet with hydrant curves has been provided for the
requested location
Requested Location via the Bozeman Infrastructure Viewer2
If you have questions or need further information feel free to email.
Data Disclaimer: Water distribution information is calculated using hydraulic modeling software and is subject to
variation. Actual field conditions may vary. This information is provided to the requestor for evaluation purposes
only, without warranty of any kind, including, but not limited to any expressed or implied warranty arising by
contract, stature, or law. In no event regardless of cause, shall the City be liable for any direct, indirect, special,
punitive or consequential damages of any kind whether such damages arise under contract, tort, strict liability or
inequity.
HOME OF MONTANA STATE UNIVERSITY
GATEWAY TO YELLOWSTONE PARK
1 https://www.bozeman.net/home/showpublisheddocument/4977/636420174896170000
2 https://gisweb.bozeman.net/Html5Viewer/?viewer=infrastructure
GIS Hydrant #
Available Flow
(gpm)
Residual
Pressure (psi)72
0 131.35
200 131.04
400 130.69
600 130.29
800 129.83
1,000.00 129.33
1,200.00 128.79
1,400.00 128.2
1,600.00 127.57
1,800.00 126.89
2,000.00 126.18
2,200.00 125.43
2,400.00 124.63
2,600.00 123.79
2,800.00 122.92
3,000.00 122
3,200.00 121.04
3,400.00 120.05
3,600.00 119.01
3,800.00 117.93
4,000.00 116.8
4,200.00 115.64
4,400.00 114.44
4,600.00 113.2
4,800.00 111.92
5,000.00 110.6
5,200.00 109.25
5,400.00 107.86
5,600.00 106.42
5,800.00 104.91
6,000.00 103.35
6,200.00 101.75
6,400.00 100.13
6,600.00 98.46
6,800.00 96.75
7,000.00 94.99
7,200.00 93.2
7,400.00 91.37
7,600.00 89.5
7,800.00 87.6
8,000.00 85.65
8,200.00 83.66
8,400.00 81.64
8,600.00 79.58
8,800.00 77.49
9,000.00 75.34
9,200.00 73.17
9,400.00 70.95
9,600.00 68.7
9,800.00 66.41
10,000.00 64.08
10,200.00 61.71
10,400.00 59.31
10,600.00 56.87
10,800.00 54.39
11,000.00 51.88
11,200.00 49.33
11,400.00 46.75
11,600.00 44.12
11,800.00 41.46
12,000.00 38.77
12,200.00 36.04
12,400.00 33.23
12,600.00 30.43
12,800.00 27.61
13,000.00 24.72
13,200.00 21.66
13,400.00 19.02
13,600.00 16.34
13,800.00 13.63
14,000.00 10.89
14,200.00 8.13
14,400.00 5.34
14,600.00 2.53
Hydrant Curve
0
20
40
60
80
100
120
140
0 2000 4000 6000 8000 10000 12000 14000 16000Residual Pressure (psi)Available Flow (gpm)
Hydrant Curve
72
Data Disclaimer: Water distribution information is calculated using hydraulic modeling
software and is subject to variation. Actual field conditions may vary. This information
is provided to the requestor for evaluation purposes only, without warranty of any
kind, including, but not limited to any expressed or implied warranty arising by
contract, stature, or law. In no event regardless of cause, shall the City be liable for
any direct, indirect, special, punitive or consequential damages of any kind whether
such damages arise under contract, tort, strict liability or inequity.
GIS Hydrant #
Available Flow
(gpm)
Residual
Pressure (psi)74
0 129.57
200 129.26
400 128.89
600 128.45
800 127.96
1,000.00 127.4
1,200.00 126.79
1,400.00 126.13
1,600.00 125.41
1,800.00 124.64
2,000.00 123.82
2,200.00 122.94
2,400.00 122.02
2,600.00 121.05
2,800.00 120.03
3,000.00 118.96
3,200.00 117.84
3,400.00 116.67
3,600.00 115.45
3,800.00 114.18
4,000.00 112.85
4,200.00 111.48
4,400.00 110.07
4,600.00 108.6
4,800.00 107.08
5,000.00 105.52
5,200.00 103.92
5,400.00 102.27
5,600.00 100.57
5,800.00 98.81
6,000.00 96.98
6,200.00 95.1
6,400.00 93.18
6,600.00 91.22
6,800.00 89.2
7,000.00 87.14
7,200.00 85.02
7,400.00 82.87
7,600.00 80.67
7,800.00 78.41
8,000.00 76.12
8,200.00 73.77
8,400.00 71.38
8,600.00 68.95
8,800.00 66.47
9,000.00 63.94
9,200.00 61.38
9,400.00 58.76
9,600.00 56.1
9,800.00 53.39
10,000.00 50.64
10,200.00 47.8
10,400.00 45
10,600.00 42.11
10,800.00 39.18
11,000.00 36.21
11,200.00 33.19
11,400.00 30.13
11,600.00 27.02
11,800.00 23.88
12,000.00 20.68
12,200.00 17.45
12,400.00 14.14
12,600.00 10.81
12,800.00 7.45
13,000.00 4.05
13,200.00 0.61
Hydrant Curve
0
20
40
60
80
100
120
140
0 2000 4000 6000 8000 10000 12000 14000Residual Pressure (psi)Available Flow (gpm)
Hydrant Curve
74
Data Disclaimer: Water distribution information is calculated using hydraulic modeling
software and is subject to variation. Actual field conditions may vary. This information
is provided to the requestor for evaluation purposes only, without warranty of any
kind, including, but not limited to any expressed or implied warranty arising by
contract, stature, or law. In no event regardless of cause, shall the City be liable for
any direct, indirect, special, punitive or consequential damages of any kind whether
such damages arise under contract, tort, strict liability or inequity.
APPENDIX B
Sewer Calculations
Boutique Hotel Mendenhall
302 E. Mendenhall Street
Date: 03.28.24
Sewer Demand Calculation
Average Day Sewer Demand :
Hotel Use:
Rooms =71
Average Demand per Room =80.0 Gal./Day/Room (See Comparable Facility Data)
Average Day Demand =5,680 GPD
Infiltration:
Property Size =0.41 acres
Infiltration Flow =62 GPD (150 gpd/acre per COB Design Standards)
Total Development Average Day Demand:
5,742 GPD (domestic + infiltration)
Total Development Peak Sewer Flow:
Average Day Demand =5,680 GPD (domestic only)
Equivalent Population =88 People (GPD / 64.4gpcd - 2015 Wastewater Facilities Plan)
P =0.0882 (population/1,000)
Peaking Factor =4.26
Peak Sewer Demand =24,186 GPD (avg. day demand)*(peaking factor)
+ Infiltration Flow =62 GPD (not peaked)
Total Peak Flow =24,248 GPD (peaked domestic + infiltration)
Peak Sewer Flow =16.84 GPM (peak flow)/(24 hrs/day)/(60 min/hr)
𝑄𝑚𝑎𝑥
𝑄𝑎𝑣𝑔
=18 +𝑠ℎ𝑛𝑠𝑠𝑎𝑛𝑑𝑠𝑛𝑑𝑛𝑑𝑛𝑛𝑙𝑑1/2
4 +𝑠ℎ𝑛𝑠𝑠𝑎𝑛𝑑𝑠𝑛𝑑𝑛𝑑𝑛𝑛𝑙𝑑1/2
Boutique Hotel Mendenhall
302 E. Mendenhall Street
Date: 03.28.24
6" Sewer Service Pipe Capacity
Input Values
d =0.50 ft =6"
y =0.375 ft =75%
Calculated Values (Equations from Fluid Mechanics by Chow)
Theta (Θ)4.19 rad 2*arccos(1-y/(d/2))
Area (A)0.16 ft2 (1/8)*(Θ-sinΘ)d2
Wetted Perimeter (P)1.05 ft 0.5Θd
Hydraulic Radius (R )0.15 ft (.25)*(1-(sinΘ)/Θ)d
Top Width (T)0.43 ft (sin 0.5Θ)d
Mannings Equation (Equation from Fundamentals of Mechanics by Munson)
n =0.013 (per COB Design Standards)
S0 =0.0104 ft/ft (min. 1/8" per foot for 6" services)
Q =0.52 cfs Q = 1.49/n*A*R2/3*S00.5
Q =235.00 gpm Q gpm = (Q cfs)(7.48 gal/ft3)(60 sec/min)
V =3.31 ft/s V = Q/A
Results A 6" diameter sewer service at the min. 1/8" per foot slope flowing
75% full has the capacity for 235.00 gpm.
Appendix C
Storm Water Calculations
4,808' - 0"ALLEYW MENDENHALL STREETBOZEMAN CREEK
REVISIONDESIGNED BY:QUALITY CHECK:JOB NO.FIELDBOOKDRAWN BY:DATE:B24-005 SW BASINSREV DATE
BOUTIQUE HOTEL MENDENHALL
BOZEMAN, MONTANA
STORM DRINAGE BASINS & FACILITY SIZING B24-00504.01.24.DWGFIGURE1CJCEngineering
234 E. BABCOCK ST., SUITE 3 • BOZEMAN, MONTANA 59715
406.586.0277 • tdhengineering.comBASIN-1:CAVE = 0.83I10 = 0.41A = 0.31 ACV10 = 766 CFRRV = 494 CFQ25 = 1.09 CFS
Boutique Hotel Mendenhall
302 E. Mendenhall Street
Date: 03.28.24
Retention Volume Sizing Calcs
Rational Formula "C" Values Per MTDEQ 8 "C"
Impervious Area/Pond Surface 0.9
Gravel Area 0.8
Unimproved Area 0.3
Lawn/landscape 0.1
Post-Development Basin (C Value) Determinations:
Basin #Basin Description Total Area
(SF)
Total Area
(Acres)
Impervious
Area (SF)
Gravel
Area (SF)
Unimproved
Area (SF)
Landscape
Area (SF)
Composite
Cave
1 Building and Site Improvement Areas 13,634 0.31 12,424 0 0 1,210 0.83
Runoff Volume Calcs (10-yr, 2-hr):
Basin #Basin Description Total Area
(SF)
Total Area
(Acres)
Composite
Cave
CCf
(Cf = 1.0)
10 yr - 2hr
i
(in/hr)
Flow
Q10
(cfs)
Volume
V10
(cf)
1 Building and Site Improvement Areas 13,634.00 0.31 0.83 0.83 0.41 0.11 766
Tc*Tc*25 yr Flow
C(Cf)Area Total Total i Q
ac min hour in/hr cfs
Basin 1 0.91 0.31 5.00 0.083 3.826 1.09
* Tc minimum of 5 minutes
`
25-Year Runoff Flow Rate:
𝑖25 =0.78 ⋅𝑇𝑐−.64 AiCQ=
𝐶𝑓=1.10 (25-yr)
Boutique Hotel Mendenhall
302 E. Mendenhall Street
Date: 03.28.24
Basin RRV (First 0.5") Calculations
Post-Development Condition:
Basin #Description Total
Area (SF)
Total
Area (AC)
Impervious
Area (SF)
Gravel
Area (SF)
Unimproved
Area (SF)
Landscape
Area (SF)
1 Building and Site Improvement Areas 13,634 0.31 12,424 0 0 1,210
Runoff Reduction Volume (First 0.5" of Rainfall):
P =0.5 Inches (Water Quality Rainfall Depth)
Rv =0.87 (Dimensionless Runoff Coefficient, Rv=0.05+0.9(I)
I =91.1%(Percent Impervious Area Draining to Facility)
A =0.31 AC (Total Drainage Area)
RRV =0.011 AC-FT (Runoff Reduction Volume)*
494 CF
*RRV = PRvA/12 per Montana Post-Construction Storm Water BMP Design Guidance Manual Eq. 3-1
Channel Report
Hydraflow Express Extension for Autodesk® Civil 3D® by Autodesk, Inc.Friday, Mar 29 2024
<Name>
Circular
Diameter (ft) = 0.83
Invert Elev (ft) = 100.00
Slope (%) = 0.50
N-Value = 0.013
Calculations
Compute by: Known Q
Known Q (cfs) = 1.09
Highlighted
Depth (ft) = 0.52
Q (cfs) = 1.090
Area (sqft) = 0.36
Velocity (ft/s) = 3.05
Wetted Perim (ft) = 1.52
Crit Depth, Yc (ft) = 0.47
Top Width (ft) = 0.80
EGL (ft) = 0.66
0 1
Elev (ft)Section
99.75
100.00
100.25
100.50
100.75
101.00
Reach (ft)
??
?
B-2B-1 (MW)
B-3 (MW)
³
0 50 10025
Feet
?
PROJECT LOCATION
BORING LOCATION 406.761.3010 • tdhengineering.comService Layer Credits: NatGeo_World_Map: National Geographic, Esri, Garmin, HERE, UNEP-WCMC, USGS, NASA, ESA, METI,NRCAN, GEBCO, NOAA, increment P Corp.BORE HOLE LOCATION MAP1800 RIVER DR. NO. • GREAT FALLS, MONTANA 59401I:\2024\BOZ\B24-005 BHM Mendenhall\05_DESIGN\GEOTECH\BOREHOLE MAP\B24-005 BOREHOLE MAP.aprxB24-005 BOREHOLE MAP.APRX
DRAWN BY:
DESIGNED BY:
QUALITY CHECK:
DATE DRAWN:
JOB NO.:
FIELDBOOK:REVDATEREVISIONCRN
1BOZEMAN, MONTANABHM - MENDENHALL GEOTECHNICAL SERVICES DRW
03/05/2024
B24-005-001
FIGURE
Boutique Hotel Mendenhall
302 E. Mendenhall Street
Ground Water Monitoring
GW Well 3/22/2024 3/29/2024 4/5/2024 4/12/2024 4/19/2024 4/26/2024 5/3/2024 5/10/2024 5/17/2024 5/24/2024 5/31/2024 6/7/2024
B-1 16.01 15.57
B-3 18.12 17.73
Depth to Ground Water (ft)
10.00
11.00
12.00
13.00
14.00
15.00
16.00
17.00
18.00
19.00
20.00
3/9/2024 3/19/2024 3/29/2024 4/8/2024 4/18/2024 4/28/2024 5/8/2024 5/18/2024 5/28/2024 6/7/2024 6/17/2024
Depth to Groundwater (Ft)Date (Month, Day, Year)
Ground Water Depths
B-1
B-3
0
2
4
6
8
10
12
14
FILL: Clayey GRAVEL with Sand, appears medium
dense, black to dark brown, moist, topsoil mixed with
gravel, brick debris
FILL: Lean CLAY with Sand and Gravel, stiff, dark
brown, moist, topsoil mixed with intermittent gravels,
brick and wood debris
Clayey SAND, loose, brown, slightly moist
Clayey SAND with Gravel, medium dense, brown,
slightly moist, itermittent gravels
Poorly-Graded GRAVEL with Clay and Sand, very
dense, medium brown to brown, moist to wet
2.0
4.5
5.5
9.5
6-6-7
7-13-11
4-6-5
10-40-
31 71
LEGEND LOG OF SOIL BORING B-1SPT blows per foot Atterberg Limits
Field Moisture content Boutique Hotel Mendenhall
Bozeman, MontanaGroundwater Level
Grab/composite sample
1-3/8-inch I.D. split spoon Logged by:Nic Couch, EI
2-1/2-inch I.D. split spoon Drilled by:O'Keefe Drilling
Truck-Mounted Mobile B60X with 4.25-inch I.D. HSA2-1/2-inch I.D. ring sampler GNP = Granular and Nonplastic
3-inch I.D. thin-walled sampler Note: The stratification lines represent approximate
boundaries between soil types. Actual boundaries
may be gradual or transitional.
February 22, 2024 B24-005-001
No sample recovery Figure No.2
SheetGRAPHICLOGSOIL DESCRIPTION
SURFACE:Snow Covered Native Grasses
SURFACE ELEVATION:Not Measured
DEPTH (FT)GROUNDWATERSPT BLOWCOUNTSSAMPLEDEPTH (FT)PENETRATION RESISTANCE/MOISTURE CONTENT
0 10 20 30 40 50
= BLOWS PER FOOT
= MOISTURE CONTENT
1 of 2
16
18
20
22
24
26
28
No Recovery
Clayey GRAVEL with Sand, very dense, brown, wet
Bottom of Boring
Bottom of Boring Filled with Heaving Sand
Screen from 23.5 to 13.5 feet
Sand from 23.5 to 11.5 feet
Bentonite from 11.5 to 5.5 feet
Native soil from 5.5 to 1.0 feet
Sand and Well Lid Assembly from 1.0 to 0.0 feet
23.0
26.4
50/3"
50/5"
27-42-
50/5"
50/3"
50/5"
92/11"
LEGEND LOG OF SOIL BORING B-1SPT blows per foot Atterberg Limits
Field Moisture content Boutique Hotel Mendenhall
Bozeman, MontanaGroundwater Level
Grab/composite sample
1-3/8-inch I.D. split spoon Logged by:Nic Couch, EI
2-1/2-inch I.D. split spoon Drilled by:O'Keefe Drilling
Truck-Mounted Mobile B60X with 4.25-inch I.D. HSA2-1/2-inch I.D. ring sampler GNP = Granular and Nonplastic
3-inch I.D. thin-walled sampler Note: The stratification lines represent approximate
boundaries between soil types. Actual boundaries
may be gradual or transitional.
February 22, 2024 B24-005-001
No sample recovery Figure No.2
SheetGRAPHICLOGSOIL DESCRIPTION
SURFACE:Snow Covered Native Grasses
SURFACE ELEVATION:Not Measured
DEPTH (FT)GROUNDWATERSPT BLOWCOUNTSSAMPLEDEPTH (FT)PENETRATION RESISTANCE/MOISTURE CONTENT
0 10 20 30 40 50
= BLOWS PER FOOT
= MOISTURE CONTENT
2 of 2
0
2
4
6
8
10
12
14
FILL: Poorly-Graded GRAVEL with Clay and Sand,
appears medium dense, brown, moist, base course
Lean CLAY with Sand, firm, dark brown, moist
Clayey SAND, loose, brown, moist, fine sands
Clayey SAND with Gravel, loose, brown, moist,
intermittent gravels
Poorly-Graded GRAVEL with Clay and Sand, medium
dense, brown, moist
- Very dense below 10.0 feet
0.3
3.8
4.0
8.0
4-3-4
7-5-3
6-13-13
50/5"50/5"
LEGEND LOG OF SOIL BORING B-2SPT blows per foot Atterberg Limits
Field Moisture content Boutique Hotel Mendenhall
Bozeman, MontanaGroundwater Level
Grab/composite sample
1-3/8-inch I.D. split spoon Logged by:Nic Couch, EI
2-1/2-inch I.D. split spoon Drilled by:O'Keefe Drilling
Truck-Mounted Mobile B60X with 4.25-inch I.D. HSA2-1/2-inch I.D. ring sampler GNP = Granular and Nonplastic
3-inch I.D. thin-walled sampler Note: The stratification lines represent approximate
boundaries between soil types. Actual boundaries
may be gradual or transitional.
February 22, 2024 B24-005-001
No sample recovery Figure No.3
SheetGRAPHICLOGSOIL DESCRIPTION
SURFACE:Ice Covered Gravel Surfacing
SURFACE ELEVATION:Not Measured
DEPTH (FT)GROUNDWATERSPT BLOWCOUNTSSAMPLEDEPTH (FT)PENETRATION RESISTANCE/MOISTURE CONTENT
0 10 20 30 40 50
= BLOWS PER FOOT
= MOISTURE CONTENT
1 of 2
16
18
20
22
24
26
28
Clayey GRAVEL with Sand, very dense, brown, wet
Bottom of Boring
16.9
25.8
29-43-
50
9-31-36
26-50/
4"
93
67
50/4"
LEGEND LOG OF SOIL BORING B-2SPT blows per foot Atterberg Limits
Field Moisture content Boutique Hotel Mendenhall
Bozeman, MontanaGroundwater Level
Grab/composite sample
1-3/8-inch I.D. split spoon Logged by:Nic Couch, EI
2-1/2-inch I.D. split spoon Drilled by:O'Keefe Drilling
Truck-Mounted Mobile B60X with 4.25-inch I.D. HSA2-1/2-inch I.D. ring sampler GNP = Granular and Nonplastic
3-inch I.D. thin-walled sampler Note: The stratification lines represent approximate
boundaries between soil types. Actual boundaries
may be gradual or transitional.
February 22, 2024 B24-005-001
No sample recovery Figure No.3
SheetGRAPHICLOGSOIL DESCRIPTION
SURFACE:Ice Covered Gravel Surfacing
SURFACE ELEVATION:Not Measured
DEPTH (FT)GROUNDWATERSPT BLOWCOUNTSSAMPLEDEPTH (FT)PENETRATION RESISTANCE/MOISTURE CONTENT
0 10 20 30 40 50
= BLOWS PER FOOT
= MOISTURE CONTENT
2 of 2
0
2
4
6
8
10
12
14
FILL: Poorly-Graded GRAVEL with Clay and Sand,
appears dense, brown, moist, base course
Lean CLAY with Sand, firm, brown, moist, tree roots
Poorly-Graded SAND with Clay, loose, brown, moist,
some gravel, fine and coarse sands
Poorly-Graded GRAVEL with Sand, medium dense,
brown, moist
Poorly-Graded GRAVEL with Clay and Sand, very
dense, brown, moist
3.8
4.5
7.0
4-3-2
8-11-11
16-50/
3"
16-31-
41
50/3"
72
LEGEND LOG OF SOIL BORING B-3SPT blows per foot Atterberg Limits
Field Moisture content Boutique Hotel Mendenhall
Bozeman, MontanaGroundwater Level
Grab/composite sample
1-3/8-inch I.D. split spoon Logged by:Nic Couch, EI
2-1/2-inch I.D. split spoon Drilled by:O'Keefe Drilling
Truck-Mounted Mobile B60X with 4.25-inch I.D. HSA2-1/2-inch I.D. ring sampler GNP = Granular and Nonplastic
3-inch I.D. thin-walled sampler Note: The stratification lines represent approximate
boundaries between soil types. Actual boundaries
may be gradual or transitional.
February 22, 2024 B24-005-001
No sample recovery Figure No.4
SheetGRAPHICLOGSOIL DESCRIPTION
SURFACE:Ice Covered Gravel Surfacing
SURFACE ELEVATION:Not Measured
DEPTH (FT)GROUNDWATERSPT BLOWCOUNTSSAMPLEDEPTH (FT)PENETRATION RESISTANCE/MOISTURE CONTENT
0 10 20 30 40 50
= BLOWS PER FOOT
= MOISTURE CONTENT
1 of 2
16
18
20
22
24
26
28
Clayey GRAVEL with Sand, very dense, brown, wet,
some creme brown color
Bottom of Boring
Boring Filled with Heaving Sand
Screen 24.3 to 14.3 feet
Sand from 24.3 to 12.0 feet
Bentonite from 12.0 to 9.0 feet
Native Soil from 9.0 to 1.0 feet
Sand, Well Lid Assembly, and Concrete from 1.0 to
0.0 feet
18.7
26.4
18-37-
50/4"
25-33-
44
15-37-
50/5"
87/10"
77
87/11"
LEGEND LOG OF SOIL BORING B-3SPT blows per foot Atterberg Limits
Field Moisture content Boutique Hotel Mendenhall
Bozeman, MontanaGroundwater Level
Grab/composite sample
1-3/8-inch I.D. split spoon Logged by:Nic Couch, EI
2-1/2-inch I.D. split spoon Drilled by:O'Keefe Drilling
Truck-Mounted Mobile B60X with 4.25-inch I.D. HSA2-1/2-inch I.D. ring sampler GNP = Granular and Nonplastic
3-inch I.D. thin-walled sampler Note: The stratification lines represent approximate
boundaries between soil types. Actual boundaries
may be gradual or transitional.
February 22, 2024 B24-005-001
No sample recovery Figure No.4
SheetGRAPHICLOGSOIL DESCRIPTION
SURFACE:Ice Covered Gravel Surfacing
SURFACE ELEVATION:Not Measured
DEPTH (FT)GROUNDWATERSPT BLOWCOUNTSSAMPLEDEPTH (FT)PENETRATION RESISTANCE/MOISTURE CONTENT
0 10 20 30 40 50
= BLOWS PER FOOT
= MOISTURE CONTENT
2 of 2