HomeMy WebLinkAboutCORRESPONDENCE September 15, 2003
Brett McCully, P.E.
City of College Station
P.O. Box 9960
2613 Texas Ave.
N c rn College Station, TX 77842 -9973
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Mr. McCully:
• ctS c vv 0 Mitchell & Morgan, LLP is currently working on a site plan for Higgins Suzuki, to be located
G o2S on SH6 frontage road, between the Home Depot in the Gateway Subdivision and Burton
U = a wl e ch
e.k. We are in the process cf determining access point: to our client's site from the
c c frontage road. The current access location, as shown in attachment A, is the best location for
a. 5 v� a access from the frontage road. This location is determined using Texas Department of
c �; g Transportation design criteria as discussed below.
• °'
w 2 a The frontage road is currently one -way with a posted 50 mph speed limit. From Table 2 -1,
W v - °Y) (7) "Frontage Road Connection Spacing Criteria ", taken from TxDOT's Draft Access
= in
Management Manual, the minimum distance between access points for a 50 mph posted speed
is 425 feet. As shown in attachment A, the proposed driveway is 418 feet from the first Home
Depot driveway. This distance does not meet the minimum requirement; however, it must be
p; pointed out that the bridge crossing Burton Creek prohibits the driveway from moving closer
C uW to Burton Creek in order to meet the minimum required spacing.
Os c a Another criterion for the location of this access point is the distance from the SH6 exit ramp
X a = gore to our access point. As shown in Table 3 -16, "Desirable Spacing between Exist Ramps
; v ,, and Driveways, Side Streets, or Cross Streets," taken from TxDOT's Roadway Design
ri x a Manual, the spacing from the exit ramp gore to the proposed driveway is a function of
frontage road volume (vph), ramp volume (vph), driveway volume (vph) and number of
weaving lanes associated with the frontage road and ramp. The number of weaving lanes at
O O this location is two, and the total volume (frontage road plus ramp) can be assumed to be
greater than 2500 vph. We do not anticipate more than 250 vehicles an hour to enter and exit
this driveway, so from the table the spacing from exit gore to driveway is 920 feet. As shown
in attachment A, the proposed driveway is 990 feet from the exit gore.
a. It We are still at the concept stage of this design, and request a response as to whether this
J . � N driveway will be considered permissible. If you have any comments or questions please feel
al
free to contact me at 260 -6963.
04 a
tD Vl Best regards,
tL �
O W M
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‘411 Ja ies Batenhorst, E.I.T.
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O th Graduate Engineer, Mitchell & Morgan, LLP
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Home Depot Driveway
A
Chapter 2 - Access Management Criteria Section 5 - Frontage Roads
Access Connection Spacing
(refer to Table 2 -1 or 2 -2)
FRONTAGE ROAD
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/ FREEWAY MAINLANES i
FRONTAGE ROAD
Access Connection Spacing
(refer to Table 2 -1 or 2 -2)
Figure 2- 3: Frontage Road U -Turn Spacing Diagram
Minimum Connection Spacing
Criteria for Frontage Roads"`
Minimum Connection Spacing (feet)
Posted
Speed One -Way Two -Way Frontage
(mph) Frontage Roads Roads
< 30 200 200
35 250 300
40 305 360
45 360 435
> 50 425 510
Table 2- 1: Frontage Road Connection Spacing Criteria
(1) Distances are for passenger cars on level grade. These distances may be adjusted for downgrades
and/or significant truck traffic.
(2) When these values are not attainable, refer to the deviation process as described in Chapter 3,
Section 1 or Chapter 2, Section 2.
Draft Access Management Manual 21 Working Draft 2003 June 26
Chapter 3 — New Location and Reconstruction (4R) Design Criteria Section 6 — Freeways
Intersection of
R Roadway Surface Intersection
op of Travel Lanes
III
III
Frontage Road Weaving Lanes
III HI
Control of
access line
L +
50 ft '0 o a
Variable [15 m] Variable
c c 3
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Access denied where practical - -o
- l_ •-
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0 For exit ramp to driveway, side street,
or cross street spacings, See Table 3 -16.
When the 250 ft [75 m] separation distance cannot
be obtained, consideration should be given to
channelization methods that would restrict access to
driveways within the 250 ft [75 m] separation distance.
NOTE: THIS SHEET I5 NOT INTENDED TO SHOW CHANNELIZATION,
STRIPING, OR PAVEMENT MARKING DETAILS.
REFER TO THE TEXAS MUTCD.
RECOMMENDED ACCESS CONTROL AT
EXIT RAMP JUNCTION WITH FRONTAGE ROAD
Figure 3 -10. Recommended Access Control At Exit Ramp Junction With Frontage Road.
Online users can click 3 -10 to see this illustration in PDF format.
Roadway Design Manual 3 -63 TxDOT 10/2002
Chapter 3 — New Location and Reconstruction (4R) Design Criteria Section 6 —Freeways
Intersection Intersection of
Roadway Surface
of Travel Lanes Fto
ce III
III
Frontage
Road
III III
Control
200 ft 100 ft of access
o N (60 m] O [30 m] l i n e
N desirable desirable Variable
T L E - -w- < - <
vt-
30
N 300 ft [90 m] desirable
> 0) -
— U access denied
L •—
o N
Access denied Where practical
0 When the 100 ft [30 m] separation distance cannot
be obtained, consideration should be given to
channelization methods that would restrict access to
driveways within the 100 ft [30 m] separation distance.
NOTE: THIS SHEET IS NOT INTENDED TO SHOW CHANNELIZATION,
STRIPING, OR PAVEMENT MARKING DETAILS.
REFER TO THE TEXAS MUTCD.
RECOMMENDED ACCESS CONTROL AT ENTRANCE
RAMP JUNCTION WITH FRONTAGE ROAD
Figure 3 -11. Recommended Access Control At Entrance Ramp Junction With Frontage
Road. Online users can click 3 -11 to see this illustration in PDF format.
Roadway Design Manual 3 -64 TxDOT 10/2002
Chapter 3 — New Location and Reconstruction (4R) Design Criteria Section 6 — Freeways
Driveways and Side Streets
The placement of streets and driveways in the vicinity of freeway ramp /frontage road
intersections should be carefully considered and permitted only after local traffic operations
are considered. Information on the driveway clearance from the cross street intersection is
contained in the Regulations for Access Driveways to State Highways and should be
considered in the locating of any driveways on projects involving the construction or
reconstruction of ramps and/or frontage roads.
Table 3 -16 shows the spacing to be used between exit ramps and driveways, side streets, or
cross streets if practical. The number of weaving lanes is defined as the total number of
lanes on the frontage road downstream from the ramp.
Table 3 -16: Desirable Spacing between Ramps and Driveways, Side Streets, or Cross Streets
Total Volume Driveway or Spacing
(Frtg rd +Ramp) Side Street (ft [m])
(vph) Volume (vph)
Number of Weaving Lan es
2 3 4
< 2500 < 250 460 [140] 460 [ 140] 560 [ 170]
> 250 520 [160] 460 [140] 560 [170]
> 750 790 [246] 460 [ 140] 560 [ 170]
> 1000 1000 [300] 460 [140] 560 [170]
> 2500 < 250 920 [280] 460 [ 140] 560 [ 170]
> 250 950 [290] 460 [140] 560 [170]
> 750 1000 [300] 600 [180] 690 [210]
> 1000 1000 [300] _ 1000 [300] 1000 [300]
Driveway or side street access on the frontage road in close downstream proximity to exit
ramp terminals increases the weaving that occurs on the frontage road and may lead to
operational problems. For this reason, it is important to maintain appropriate separation
between the intersection of the exit ramp and frontage road travel lanes, and downstream
driveways or side streets where practical.
It is recognized that there are occasions when meeting these exit ramp separation distance
values may not be possible due to the nature of the existing development, such as a high
number of closely spaced driveways and/or side streets especially when in combination with
closely spaced interchanges. In these cases, at least 250 ft [75 m] of separation should be
provided between the intersection of the exit ramp and frontage road travel lanes and the
downstream driveway or side street. Since the use of only 250 ft [75 m] of separation
distance may negatively impact the operation of the frontage road, exit ramp, driveway
and/or side street traffic, careful consideration should be given to its use. When the 250 ft
[75 m] separation distance cannot be obtained, consideration should be given to
channelization methods that would restrict access to driveways within this 250 ft [75 m]
distance. Refer to the Texas MUTCD for specific types of channelization.
Roadway Design Manual 3 -65 TxDOT 10/2002
CITY OF COLLEGE STATION
‘j DEVELOPMENT SERVICES
1 101 Texas Avenue South, PO Box 9960
COLLEGE STATION College Station, Texas 77842
Phone 979.764.3570 / Fax 979.764.3496
MEMORANDUM
September 23, 2003
TO: James Batenhorst, EIT
FROM: Brett McCully, P.E., Development Engineer
SUBJECT: Higgins Suzuki Driveway Location
James,
We have reviewed the information submitted regarding the location of a driveway
onto the southbound frontage road of SH6 between Burton Creek bridge and the
southernmost Home Depot driveway.
In general, we feel that we can support a driveway connection at the location
indicated.
That said, we retain some concerns regarding sight distance issues relating to
the curvature of the frontage road, the traffic barriers tied to the Burton Creek
Bridge, and the actual vs. posted vehicular speeds encountered in this area.
Should this project move forward, we will be looking for design specifics that
address these concerns as part of the site plan process, whereby the driveway
connection will actually be permitted.
Please contact me should you have any questions or comments.
Thank you for submitting this issue for early consideration.
September 22, 2003
Bridgette George
o , a' City of College Station
o b 0 Development Services
= d 2 PO Box 9960 cd
,3 t c n g College Station, TX 77840
401 (0 V = a .9) VI c Re: Property Located Approximately 1500' North of SH6 /University Drive
06 c A'...,,6 E Intersection on SH6 Southbound Frontage Road in College Station, TX
- >- E o Dear Bridgette,
C �c g' 2 :m
c •3 -0 tu E Attached are the following items related to the property located approximately
Iu u z v cn 1500' north of SH6 /University Drive intersection on SH6 southbound frontage
road:
W
a • Rezoning Application
c u.i • $500 Application Fee
CO a • Two 24x36 copies of the rezoning area
O t = • A copy of the metes and bounds
X c u • t) • Rezoning Supporting Information sheet completed in full
cci Z a Please let us know if you have any questions or need any further information. pi
3 . z
c n Sincerely,
> JJ
James Batenhorst, E.I.T.
Graduate Engineer
-+ N O
Q B S Cc. File IN
0 , H Mace Higgins
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Jennifer Reeves - Re: Higgins Rezoning Page 1
From: Bridgette George
To: Veronica Morgan
Date: 10/15/2003 2:09:06 PM
Subject: Re: Higgins Rezoning
Good afternoon! I received your request and will remove this item from the Agenda. Please inform your
client that additional fees will be required when this item is rescheduled for a future meeting because the
City already advertised and sent out notices for the meeting this week. Thanks!
Bridgette George
Asst. Development Manager
City of College Station
P.O. Box 9960
College Station, TX 77842 -9960
979.764.3570
bgeorge @cstx.gov
www.ci.college - station.tx.us
»> "Veronica Morgan" <v(c�mitchellandmorgan.com> 10/15/2003 12:58:37 PM »>
Jennifer & Bridgette,Please consider this a notice of request to remove the Higgins Rezoning from this
Thursday nights P &Z meeting. My client has telephoned me and requested that we pull the item while he
has time to confer with his legal counsel regarding the compromise to rezone only a portion of the
property to C -1 and the remainder to A-0.Thanks for your help on this project... I am sure you will see a
request from us to place this back on the agenda before the end of the year. Please let me know if you
have any questions or if I can be of any help.Veronica
CC: Jennifer Reeves