HomeMy WebLinkAbout1.06 Traffic and Parking PlanTraffic and Parking Plan
Traffic and Access:
The current legal access to the site has been confirmed and a current
amended easement has been signed by the president of the Farmer's
Irrigation Company (see attach: 1- Amended Access). Traffic impact
relating to this special use permit is certified in the attached basic
traffic study. The study finds that the existing access off County
Road 237 is adequate for the proposed facility (additional information
can be found on the topographic survey). The existing road now
averages 14 feet wide and will have to be widened to 16 feet. This
was specified by Colorado River Fire Rescues Fire Marshal, Orrin
Moon. He did a site visit on Friday March 11, 2016 and determined
that the standard of 20 feet is not required due to the dual purpose of
the road to the site. He thought that if we could get all our large
agricultural equipment in on the road that he could work with 16 feet
for emergency access. He did however request 10' x 40' pullouts
every 400 feet based on the lay of the land. This will allow for the 8
foot wide emergency vehicles and a standard 6 foot wide car and 2
feet buffer for passing and edge of road issues. Per the
recommendation of Garfield County Road and Bridge, we will be
installing a stop sign and widening the apron off County Road 237 to
facilitate two-way traffic at the access point. (see attach: 5- Garfield
County Road and Bridge letter) The road has an existing barrow
ditch, and culverts in place where needed. We plan to place "event
ahead" signs on the county road for traffic awareness and additional
safety. This was not required by County Road and Bridge.
Parking:
As noted in our project narrative, adequate parking is available at the
site. (See site plan). We have allowed for 75 parking spaces, and
overflow parking is available in the adjacent field. This is well over
the required minimum of 1 space per 100 sq feet of building space.
The impact of this parking area is minimal. There is little to no current
use of this land. There also is very minimal wildlife in this area to
consider. There are no visible migration paths through this land.
(see attach: 4- statement from CPW Officer, Brian Gray)
RAI
March 21, 2016
Warren & Carla Roberts
Grand Hogback, LLLP
4450 CR 245
New Castle, CO 81647
Re: Traffic Analysis for 4611 County Road 237, Silt, CO
Dual -Purpose Use Facility
Proj. No. 16005.01
LJear Warren & Carla:
The purpose of this letter is to provide a basic engineered analysis for additional traffic generated
from a new land use off of County Road (CR) 237 (Harvey Gap Road) locate at the north end of the
Harvey Gap Reservoir. It is our understanding that you intend to develop a dual purpose -use facility
on Parcel 1 of the Harvey Gap minor Subdivision Exemption. As shown on the attached exhibit, a
common drive currently servicing the four parcels accesses CR 237 adjacent to the north shoreline of
the reservoir. Current use of all four parcels is agriculture (fields) along with one a single family
residence on Parcel 3.
The proposed facility will serve as a dual purpose infrastructure:
1) Agricultural operations and storage
2) Wedding event center.
The Agricultural operations and storage improvements should not create any or negligible traffic
impact to CR 237. However, the operation of the facility for weddings will create additional traffic to
and from CR 237 during the wedding events.
The most popular day of the week for weddings is Saturday, followed by Fridays and Sundays and
then the week days Monday through Thursdays. Even though the average wedding attendance is
around 120 people. the basis of the attached Trip Generation Table for Typical Wedding Events was
prepared for 240 people (based on the facility size and capacity). Peak Traffic Hours for an "at -
capacity wedding event" would most likely occur at the following times:
Arrivals (inbound) 80 Vehicles from 3 pm to 4pm
Departures (outbound) 32 Vehicles from 6 pm to 7pm
The latest traffic count data (attached) obtained from Garfield County's Department Road and Bridge
for CR 237 occurred from June 3 thru June 10, 2014 shows that Saturday is the peak day with an
ADT of 1,339, indicating recreational traffic. Posted speed is 35 MPH.
Saturday Peak Hourly afternoon traffic:
(Virtual Day Peak Hour Traffic) X (Sat. Adjustmet Factor) = 88.X 1.319 = 116 Veh/HR or
58 Veh/HR both northbound and southbound.
'ooper Avenue, St 2014, 1, Glenwood Springs, CO 81601 970.945.5252 1 www.bu-inc.com
Page 2 of 2
Warren & Carla Roberts
Traffic Analysis for 4611 CR 237, Silt, CO
March 21, 2016
According to Google Map, Inbound Wedding guest traveling from Denver/Glenwood Springs would
take the 1-70 New Castle Exit to CR's 245, 226, and then CR 237 Southbound to the facility. Guest
traveling from Grand Junction/Rifle would exit 1-70 at either Rifle or Silt and make onto CR 237
northbound to the wedding. A 50/50 split of additional generated inbound traffic results 80 veh/hr X
50% = 40 veh/hr both northbound and southbound generated traffic.
Combining generated inbound traffic of 40 veh/hr with Virtual Day Peak Traffic of 58 veh/hr results a
total of 98 veh/hr in both directions. According to CDOT State Highway Access Code, Dated March
2002, Section 3.5 (5) under Auxiliary Turn Lanes:
- The right turn deceleration lane may be dropped if the volume in the travel lane is predicted to
be below 150 DHV (design hourly volume). 98 veh/hr is less than 150 DHV. Therefore no
right turn deceleration lane is warranted.
The left turn deceleration lane may be dropped if the opposing traffic is predicted to be below
100 DHV (design hourly volume). 98 veh/hr is less than 100 DHV. Therefore no left turn
deceleration lane is warranted.
- The left turn acceleration lane may be dropped if the volume in the lane in the direction of
travel is predicted to be below 120 DHV (design hourly volume). 58 veh/hr is Tess than 120
DHV. Therefore no left turn acceleration lane is warranted.
If you have any questions or need additional information, please feel free to contact me at
970.945.5252.
Sincerely,
BOUNDARIES UNLIMITED INC.
'duce D. Lewis, PE %AI` lF •
Principal I, '*...4.
gsr 1948D ;lox
iminanuttitii
Enc.
923 Cooper Avenue, Ste. 201 Glenwood Springs, CO 81601 j 970.945.5252 1 www.bu-inc.com
923 Cooper Avenue1.Ste. 201 ( Glenwood Springs, CO 81601 ( 970.945.5252 1 www.bu-inc.com
Time
Prior to 3 PM
Trip Generation Table
(Based on typical local wedding events)
Groups Arriving & No.
Departing Vehicles
ARRIVE
- Staff
- Bride, Groom, &
Wedding Party
- Set-up crew
- Florist
- Deliveries
- Caterer & bartenders
3 pm to 4 pm ARRIVE
- Guests (240 Max)
4 pm to 5 pm Event (wedding)
5 pm to 6 pm Banquet (wedding)
6 pm to 7 pm DEPART
- 40% x 240 = 96
7 pm to 8 pm DEPART
- 20% x 240 =48
8 pm to 9 pm DEPART
- 20% x 240 =48
DEPART
9 pm to 10 pm - 20% x 240 =48
- Bride Groom, &
Wedding Party
DEPART
After 10 pm - Staff
- Caterer, Bartender & others
Peak Hours ARRIVE (inbound)
DEPART (outbound)
20 max
80
None
32
16
Comment
includes
some departures
Based on an average
vehicle occupancy of 3
16
22 Event ends at 10 pm
14
80 Veh From 3 pm to 4 pm
32 Veh From 6 pm to 7 pm
AADT-14 -- English (ENUZ
Datasets:_
Site:
Input A:
input B:
Survey Duration:
Zone:
File:
Identifier:
Algorithm:
Data type:
Profile:
Filter time:
Name:
Scheme:
Units:
In profile:
Day Hits
0
1 1
2 1
3 1
4 1
5 1
6 1
7
MetroCount Traffic Executive
Adiusted Flow
[CR 237] CR 237 Harvey Gap Road 2014 Traffic Study
7 - North bound A>B, South bound B>A. - Lane= 2, Added to totals. (/2.000)
0 - Unused or unknown, - Lane= 0, Excluded from totals.
10:00 Tuesday, June 03, 2014 => 13:24 Tuesday, June 10, 2014
CR 23710Jun2014.EC2 (Plus)
R5245060 MC56-L5 [MC55] (c)Microcom 190ct04
Event Count (v3.21 -15275)
Axle sensors - Paired (Class/Speed/Count)
10:00 Tuesday, June 03, 2014 => 13:24 Tuesday, June 10, 2014
Default Profile
Count events divided by setup divisor
Metric (meter, kilometer, m/s, km/h, kg, tonne)
Events = 14152 / 14152 (100.00%)
RawVol DayFac M.:nFac AdjVol - Date
Tuesday, June 03, 2014
Wednesday, June 04, 2014
Thursday, June 05, 2014
Friday, June 06, 2014
Saturday, June 07, 2014
Sunday, June 08, 2014
Monday, June 09, 2014
Tuesday, June 10, 2014
949.500 1.000 1.000 949.500
973.500 1.000 1.000 973.500
1034.500 1.000 1.000 1034.500
1339.000 1.000 1.000 1339.000
861.500 1.000 1.000 861.500
932.000 1.000 1.000 932.000
Total days = 6, Coverage = 1.64%
ADT = 1015.000, SD = 168.416
AADT = 1015.000, SD = 168.416
Weekdays = 4, Coverage = 1.10%
AWDT 972.375, SD = 44.774
AAWDT = 972.375, SD = 44.774
Weekend days = 2, Coverage = 0.55%
AWET = 1100.250, SD = 337.643
AAWET = 1100.250, SD = 337.643
ADT and adjustment factor by month
Jan
Feb
Mar
Apr
May
Jun - Vol 6090.000, Days = 6, ADT = 1015.000, Adjust = 1.00000, 1/Adjust =
1.000007
Jul
Aug
Sap
Oct
Nov
Dec
ADT and adjustment factor by day of week
Mon - Vol = 932.000, Days = 2, ADT = 932.000, Adjust = 1.08906, 1/Adjust =
0.91823
Tue
Wed - Vol 949.500, Days = 1, ADT = 949.500, Adjust = 1.06898, 1/Adjust
0.93547
Thu - Vol 973.500, Days = 1, ADT = 973.500, Adjust = 1.04263, 1/Adjust
0.95911
Fri - Vol = 1034.500, Days = 1, ADT = 1034.500, Adjust - 0.98115, 1/Adjust =
1.01921
Sat - Vol 1339.000, Days = 1, ADT = 1339.000, Adjust 0.75803, 1/Adjust =
1.31921
Sun - Vol = 861.500, Days = 1, ADT = 861.500, Adjust = 1.17818, 1/Adjust =
0.84877
MetroCount Traffic Executive
Vehicle Counts (Virtual Dav)
VirtVehicleCount-392 -- English (ENUI
Datasets:
Site:
Direction:
Survey Duration:
Zone:
191e:
Identifier:
Algorithm:
Data type:
Profile:
Filter time:
Included classes:
Speed range:
Direction:
Separation:
Name:
Scheme:
Units:
In profile:
[CR 237] CR 237 Harvey Gap Road 2014 Traffic Study
7 - North bound A>B, South bound B>A. Lane: 2
10:00 Tuesday, June 03, 2014 => 13:24 Tuesday, June 10, 2014
CR 23710Jun2014.EC2 (Plus)
R5245060 MC56-L5 1MC551 (c)Microcom 19Oct04
Factory default (v3.21 -15275)
Axle sensors - Paired (Class/Speed/Count)
10:00 Tuesday, June 03, 2014 => 13:24 Tuesday, June 10, 2014
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
6 - 99 mph.
North, East, South, West (bound)
All - (Headway)
Default Profile
Vehicle classification (Scheme F2)
Non metric (ft, mi, ft/s, mph, Ib, ton)
Vehicles = 6674/6694 (99.70%)
Virtual Day -Total=931,15 minute drops
0000 0100 0200 0300 0400 0500 0600 0700 0800 0900 1000 1100 1200 1300 1400 1500 1600 1700 1600 1900 2000 2100 2200
2300
5 3 3 3 5 10 20 53 50 43 46 45 51 60 56 71 76 86 72 50 46 37
19 10
2 1 1 1 2 0 6 10 12 11 11 9 11 15 13 16 21 22 19 15 11 11
5 3
2 1 0 0 1 1 7 13 13 12 11 9 14 15 12 17 1B 23 17 12 13 9
5 2
0 1 1 1 2 5 6 15 13 11 13 12 14 16 15 20 20 22 17 12 12 9
5 2
1 1 1 0 0 4 9 14 13 10 11 14 12 14 17 1B 1B 20 18 11 10 9
4 2
AM Peak 0716 -0816 (65), AM PHF=0.92 PM Peak 1700 -1800 (88). PM PHF=0.94
Numbers have been rounded to the nearest Integer.