HomeMy WebLinkAboutAGENDA REPORT 2002 1030 CC SPC ITEM 05BW
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AGENDA REPORT
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TO: Honorable City Council W" "__
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FROM: Barry K. Hogan, Community Development Director
By: David A. Bobardt, Planning Manager
DATE: October 28, 2002 (CC Special Meeting of 10/30/02)
SUBJECT: Consider Discussion of Potential Modifications to the
Circulation Element Highway Network Adjacent to the
Planned State Route 118 Bypass and State Route 23 Freeway
Extension.
SUMMARY
The Community Development Department is scheduled to begin
preparation of a comprehensive revision to the Circulation Element
later this fiscal year. In the interim, staff is recommending
consideration be given to an evaluation of and possible amendment
to the Circulation Element highway network planned in the northern
part of the city. This would allow any possible amendments to be
made to the Circulation Element prior to the dedication and
development of highway improvements associated with recently
approved projects.
BACKGROUND
Several major projects along the Walnut Canyon corridor are close
to obtaining development permits or having development entitlements
considered by Council, including Moorpark Highlands (Pardee),
Westpointe Homes (Lyon), Vistas at Moorpark (SunCal), and Hitch
Ranch (Milligan Family). All of these projects involve the
improvement of segments of the highway network planned in the
Circulation Element of the General Plan, including an extension of
the State Route 23 Freeway and a bypass route for State Route 118.
In addition, Council set aside funds in the last two fiscal years
to obtain preliminary design and construction cost estimates for
the widening of Moorpark Avenue to provide two southbound through
lanes from Casey Road to Third Street.
Honorable City Council
Meeting of October 30, 2002
Page 2
On February 7, 2001, the City Council considered issues related to
the SR -118 bypass. The difficulty of a direct connection from the
SR -118 bypass to the SR- 118/23 horseshoe was noted due to the high
cost of bridging the SR- 118/23 freeways. Consensus was reached at
this meeting that the SR -118 bypass should be initially developed
as a parkway (referred to as the North Hills Parkway) within a 200 -
foot corridor as opposed to a grade- separated freeway, and parkway
improvements were to terminate on the east at Spring Road. On
February 6, 2002, the City Council also directed staff to study the
potential connection of the extension of State Route 23 through the
Moorpark Highlands Specific Plan to Los Angeles Avenue via Crawford
Canyon.
In response to Council direction, staff authorized a contract with
Charles Abbott Associates, Inc. to prepare a conceptual alignment
and construction cost estimate for the SR -23 Extension /Los Angeles
Avenue connection. The alignment study showed that a connection
was possible through Crawford Canyon, at a total cost of about
$23.4 million (copy attached) . At the present time staff is
seeking further direction for study of issues related to street
improvements in the highway network plan.
DISCUSSION
The highway network plan of the 1992 Circulation Element was last
amended in 1999 to include improvements related to Specific Plan 2
(Moorpark Highlands). A copy of this plan is included as Attachment
1. It includes a six -lane arterial SR -118 bypass extending west
from the existing freeway to Gabbert Road, turning into a four -lane
arterial that is planned to connect to Los Angeles Avenue west of
Buttercreek Road. It also includes a four -lane arterial extension
of the State Route 23 Freeway on the eastern edge of Specific Plan
2 to ultimately connect to Broadway north of the City's municipal
boundaries. Both of these segments of the highway network were
originally included in the 1992 Circulation Element. An amendment
to the network as part of Specific Plan 2 included a northerly
extension of Spring Road to connect to Walnut Canyon Road.
Conditions placed on the Specific Plan 2 subdivision included the
posting of signs on this road to preclude truck through traffic.
Truck traffic on surface streets through Moorpark remains one of
the major local circulation issues. At present, heavy truck traffic
accounts for about 150 of the vehicle traffic on Walnut Canyon
Road, and 200 on Los Angeles Avenue. In addition, the County is
processing for consideration three amendments to mining permits
that collectively could add over 1,100 daily truck trips, many of
which would use Walnut Canyon Road (SR -23) to access the SR- 118/23
freeways via Los Angeles Avenue (SR -118). The planned SR -118 bypass
S: \Community Development \G P Elements \CCO21030 Circulation Element.doc
I f
Honorable City Council
Meeting of October 30, 2002
Page 3
and the SR -23 extension in the Circulation Element highway network
would substantially alleviate truck traffic on Los Angeles Avenue
and Walnut Canyon Road, however completion of these segments is a
long -term process at best. Short to medium term alternatives to
address both truck traffic and local development traffic should be
considered as the roadway plans are being finalized for the
development projects in the Walnut Canyon corridor.
Three issues have been identified for Council discussion related to
potential roadway improvements. These include:
1) Should the main access road in the Westpointe project
(Tract No. 5187) be developed to connect the North Hills
Parkway from Hitch Ranch to Walnut Canyon Road?
2) Should a portion of the Spring Road Extension be used
instead of Walnut Canyon Road for trucks driving between
Fillmore and the State Route 118/23 freeways?
3) Should Crawford Canyon be used to connect State Route 23 to
Los Angeles Avenue?
Diagrams of alternative highway plans (Attachment 2) are provided
to illustrate these issues.
1. Should the Westpointe access road be developed to connect the
North Hills Parkway from Hitch Ranch to Walnut Canyon Road?
(Alternatives 1 -4)
The Westpointe access road, as approved, would tie in to the North
Hills Parkway on the Hitch Ranch property. Over 800 houses would
be built as part of these two projects if the Hitch Ranch Specific
Plan is approved, and this road could also provide a convenient
connection between the industrial area on the west side of Moorpark
and Walnut Canyon Road. The planned North Hills Parkway calls for
no connection to Walnut Canyon Road with a bridge spanning the
canyon. The cost of such a bridge, spanning over 400 feet of
canyon, would make its construction not foreseeable in the near
term.
2. Should truck traffic travelling south on Walnut Canyon Road be
encouraged to use a portion of the Spring Road extension instead of
continue on Walnut Canyon Road? (Use of the Spring Road extension
from Walnut Canyon Road to the existing northerly terminus of
Spring Road by trucks was rejected when Specific Plan No. 2 was
approved.)
A reversal of the "T" intersection at the Walnut Canyon Road /Spring
Road intersection would encourage the use of Spring Road. As a
four -lane roadway, it could accommodate the traffic better than
Walnut Canyon Road. Caltrans rejected a proposal for Walnut Canyon
S: \Community Development \G P Elements \CCO21030 Circulation Element.doc
Honorable City Council
Meeting of October 30, 2002
Page 4
Road south of this junction to "T" in to a Spring Road extension
when considering the Specific Plan 2 project connection to Walnut
Canyon Road. The response from Caltrans might be different if the
Spring Road extension is designated as the State Route 23. However,
two tract conditions prohibit through truck traffic on this
roadway. These were placed to address concerns about truck traffic
from residents along Charles Street at Spring Road. A connection to
the existing Spring Road terminus (Alternative 2) would involve the
least cost, but it would transfer the impacts of truck traffic from
one neighborhood to another, unless satisfactory mitigation could
be developed. An arterial extension directly to the SR -118 freeway
(Alternative 5) would minimize impacts on existing neighborhoods,
but would likely be too expensive to feasibly build, given the
bridges that would be necessary to make a two -way connection. A
connection to Los Angeles Avenue at Crawford Canyon (Alternatives
3 and 4) was studied in response to Council direction and is
addressed separately below.
3. If the northerly portion of the extension of Spring Road is
preferred to Walnut Canyon Road as a truck route, should it connect
to Los Angeles Avenue at Crawford Canyon?
The Crawford Canyon option is less expensive than a direct freeway
connection since it does not require bridges. Full development of
this route, from Broadway to Los Angeles Avenue was estimated by
Charles Abbott Associates to cost about $23.4 million. It too,
like the Spring Road connection, could result in neighborhood
impacts unless mitigated. Two potential routes could be used for
this connection. The first, illustrated by Alternative 3, shows a
connection of Los Angeles Avenue to the future SR -23 extension in
the Moorpark Highlands Specific Plan. Until this extension is
fully developed to Broadway, truck traffic in this alternative
would connect to Walnut Canyon Road via C Street and Spring Road.
Another approach (Alternative 4) is to connect Los Angeles Avenue
to the area for the SR -118 reservation, linking this to Spring Road
and Walnut Canyon Road. This approach would provide a more direct
connection between Los Angeles Avenue and Walnut Canyon Road than
Alternative 3.
STAFF RECOM4ENDATION
Provide direction to staff on Circulation Element Highway Network
issues.
S: \Community Development \G P Elements \CCO21030 Circulation Element.doc
Honorable City Council
Meeting of October 30, 2002
Page 5
Attachments:
1. General Plan Circulation Element Highway Network
2. Alternative Highway Network Plans
3. Conceptual Alignment and Construction Cost Estimate - SR 23
Bypass and Widening of Los Angeles Avenue
S: \Community Development \G P Elements \CCO21030 Circulation Element.doc
4 3= + e
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GENERAL PLAN CIRCULATION ELEMENT
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GENERAL PLAN CIRCULATION ELEMENT
ATTACHMENT 1
Alternative I
Roadway Network Under Circulation Element
Note: Westpointe Access is rrit a part of Circutation Fiement roadway r*twcck,
ATTACHMENT 2
Alternative
Walnut Canyon Road/ Spry Road Connealon
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Alternative 3
Walnut Canyon Rd./ Spring Rd./
Future SR -23 Ext./ Los Angeles Ave.
Connection
Broadway
Alternative 4
Walnut Canyon /Spring Road /Los Angeles Avenue Connection
Broadway
Championshi
Alternative 5
Walnut Canyon Road /Spring Road/ SR -11 S Bypass
Broadway
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SR -118
CONCEPTUAL ALIGNMENT
CONSTRUCTION COST ESTIMATE
SR 23 Bypass (From Los Angeles Avenue to Broadway)
and
Widening
of
Los Angeles Avenue (From SR 23 Bypass to Kavlico Property)
r
City of Moorpark
Prepared by
Charles Abbott Associates, Inc.
June 2002
Revised July 2002
CC ATTACHMENT 3
Table of Contents
I. Project Description
1. Introduction
2. Scope of Work
3. Criteria and Assumptions
4. Accompanying Plans and Appendices
II. Cost Estimate
1. Summary Cost Estimate
2. Quantities and Details - SR -23 Bypass (Los Angeles Avenue to
Broadway Road)
A. General
B. Earthwork
C. Structural Section
D. Curb, Gutter, and Sidewalk
E. Drainage
F. Traffic Items
G. Miscellaneous Items
H. Right -of -Way
3. Quantities and Details - Los Angeles Avenue (300' West of SR -23
Bypass to Kavlico Property)
A. General
B. Earthwork
C. Structural Section
D. Curb, Gutter, and Sidewalk
E. Drainage
F. Traffic Items
G. Miscellaneous Items
H. Right -of -Way
III. Figures and Appendices
1. Figure 1 Project Location Map
2. Figure 2 Typical Section
3. Appendix A Alignment Plan
4. Appendix B Profile and Cross Sections
5. Appendix C Earthwork Calculations
I. Project Description
1. Introduction
In accordance with the City of Moorpark Additional Services
Authorization No. 01 -07 and attachments, we have prepared a
Conceptual Alignment and Cost Estimate for:
• SR -23 Bypass from Los Angeles Avenue to Broadway
• Widening of Los Angeles Avenue from SR -23 Bypass to
Kavlico Property in the City of Moorpark, California.
2. Scope of Work
Our services were performed in general accordance with our
proposal attached to the City of Moorpark Additional Services
Authorization No. 01 -07. Our scope of this project included the
following tasks:
• Scope meeting
• Research and analyze existing data
• Aerial topography
Y^ Roadway alignment
• Prepare cost estimate
• Present cost estimate to City
As detailed in our proposal, this cost estimate will be approximate
and within 50% error.
The proposed developments along the conceptual alignment were
not considered in this study.
3. Criteria and Assumptions
The location of the project was based upon an approximate
alignment provided by the City (an alignment sketched on a
1" =2400' scale Thomas Bros. Guide Map page); see Figure 1 for
project location.
An aerial topography and a contour map at 1" =100' scale, 2 foot
contour intervals were prepared. An alignment drawn on the
contour map was submitted to the City and reviewed. Based on the
comments of the City, we prepared additional contours and a
revised alignment. A construction cost estimate was then prepared
using this revised alignment.
The SR23 Bypass is classified as a Controlled Access Secondary
Road by the Ventura County Public Works Agency Road Standards
Plate B -2 -13, with modified 10' parkways and a total right of way
width of 98'. A typical section is shown in Figure 2.
The following design standards were used for this conceptual
alignment and cost estimate project:
Horizontal Alignment Ventura County Road Standards Plate
B2 -B
Vertical Curves Ventura County Road Standards Plate
D -1
Gradient Caltrans Highway Design Manual
Section 204.3
Curb and Gutter American Public Works Association
Standards
Street Light Ventura County Road Standards Plate
F -9
Structural Section Caltrans Highway Design Manual
Section 608.4
Others Ventura County Road Standards
American Public Works Association
Standards
-' Caltrans Standards
Earthwork quantities were calculated using AutoCAD Civil Design
2000 version software based on the aerial topography and cross
sections generated at 50 -foot intervals. Due to the limitations of the
software, only a 2:1 excavation and embankment was considered,
and no terraces were included in the earthwork calculation,
additional quantities for the terraces were added to the estimate.
The Ventura County Road Standards allow a maximum gradient of
5 %; based on this gradient the excavation quantity was calculated
to be 3 million cubic yards. Using the Caltrans allowable 7%
maximum gradient for mountainous rural highways, the excavation
quantity was reduced to 2.73 million cubic yards. In order to
balance the excavation, the profile was adjusted to generate
approximately the same quantity of embankment. Due to this large
quantity of embankment, slopes of over 180' wide (measured
horizontally) in places encroached into backyards existing homes,
building structure, and -golf course fairways. The alignment was
then shifted to avoid such encroachment, and the cost estimate
revised accordingly. This shifted alignment resulted in a 2.07 million
cubic yards excavation.
No soils report was prepared for this project, a 10% factor was
included in the calculation to allow for shrinkage. Keyways,
benching, and subdrains for embankment were not quantified; a
higher unit cost for embankment was used to account for these
items.
Pavement structural section was calculated based on a traffic index
of 8 as required by the Ventura County Public Works Agency Road
Standards Plate B -2 -B, and an assumed median subgrade R -value
of 25. This resulted in a structural section of 6" AC over 13" CAB.
Right of way cost included in the estimate was based on a search
of the assessed values of the parcels along the alignment, and an
assumed mix of different land use categories.
Adjusted unit prices of Ventura County Public Works Agency and
Caltrans cost data were used for the estimate. All dollar values are
2002 values; adjustments must be made to obtain future dollar
value. The cost estimate included construction and right of way
costs only, no other costs were included.
4. Accompanying Plans and Appendices
Figure 1 Project Location Map
Figure 2 Typical Section
Appendix A Alignment Plan
Appendix B Profile and Cross Sections
Appendix C Earthwork Calculations
3
FIGURE
BROADWAY ROAD
�N
PROJECT LOCATION MAP
FIGURE 2
:a TYPICAL SECTION
SR23 BY —PASS
(VENTURA COUNTY STD. B -2 MODIFIED)
1 CURB AND GUTTER PER APWA STD 120 TYPE A2- 200(8), W =18 ".
2 CURB ONLY PER APWA STD 120 TYPE A1- 200(8).
3 4" THICK PCC SIDEWALK.
4O 6" AC ON 13" CAB.
5 METAL BEAM GUARD RAILING PER CALTRANS STD A77A, WHERE OCCURS.
6 STREET LIGHT, 16,000 LUMEN, 200' SPACING.
7 STREET TREE, 20' SPACING.
II. Cost Estimate
1. Summary Cost Estimate
SR -23Bypass Cost Estimate Summary -
l.- -- 'Roadway Items
1. Earthwork
$ __
7,223,105
2"-
3. Curb, gutter, & sidewalk
3.
$
995,988
------569,592 '
5. Traffic items - - -_ __ ____
._- .$..__ -
- - - -_- ___710,629
MisceCfaneous it ems . -_._. —w
-$v
—3 0 4 653
-- 'Subtotal construction: __. .. _.__ _____
, $___..
- -- 14,876,315
719;0.79.7
Total construction:
$
18,595,394
11 -72Tg- t- oti•wa-y
_ Right of way __
$
3,015,628
_ _— -25% contingency ___....._ ._ _ ____..__.
$__._.
__ -__ - 753,907
Total SR 23 Bypass: _ ____ . _ ___._. _.., ,_____ _. __
___.__, _$ ._._.
___- 22,364,929
Los Angetes Avenue Cost Estimate 5umma'ry
..ice oadway Items_ -_
1. Structural section � � _ _____
__$____ _
. - - - -- 262,876 '
- 2. Curb, gutter & sidewalk
$
219,200
—. —_ -.3: Drainage -- __ .. -
-- ....$-
- - - -- 1-92,420
- `4. Traffic items ____ -_ ___. _..__.._....
$____
6,435
__.5.__..Miscellaneous- ifie"'m -___
___� .__.__.._
_ — .72;555
Subtotal�co6 truction -� -- -- � -
__ ..__$____ ____
-__— .853;486
o contingency:
$__-
X3,371
construction:
i oral Los Angeles Avenue: :5 9,066,857
Total Project Cost: $ 23,431,786
2
SR23Bypass
Unit Unit Price
Cost
23,714
LF_ $ 12.00 $
284,568
23,714._
I. Roadway Items
237,140
118,570
SF_ $ 4.00 $
474,280
Total Curb, Gutter&
Sidewalk:
1 Earthwork
g
EA
$
..... 4,500.00 $ ._..
40,500 '
8
Item.
Qty
Unit
__28;000 !.
Unit Price
_
Cost
Clear & grub _
__ - 71..45
Ac
$
. _1,250.00
$
89,313
Excavation
2,195,251
CY
$
1.50
; $
3,292,877
Embankment
2,194,809
CY
$
1.75
$
3,840,916
120,000
Total Earthwork:
Total Miscellaneous
__ _ _
2 Structural Section:
................ _
Item
Qty
Unit
Unit Price
Cost _
Finish grade & prime coat
723,277
SF
$
0.13
_$
94,026
Fo seal coat __._
9
..
_..__ __ ...___- 723.277_.
SF _
$
. __. -0.42
$
723,277
SF
$
1.62
$
1,171,709
13" AB _
723,277
SF
$
1.41 ,
$
.1,01 9,821
- Total Structural Section: m
$
2,372,349
3_Curli, GutteeA'SIdewaIk..._
Item _
Curb and gutter (Type AA2)
Median curb
Sidewalk (4" Thick)
Qty
Unit Unit Price
Cost
23,714
LF_ $ 12.00 $
284,568
23,714._
LF $ 10:00. $
237,140
118,570
SF_ $ 4.00 $
474,280
Total Curb, Gutter&
Sidewalk:
,
Qty
Unit
�+
Unit Price
Cost
_ 3,400 ;
LF
$
70.00: $
238,000
560
LF
$
42.00 _ $
___23,520
g
EA
$
..... 4,500.00 $ ._..
40,500 '
8
EA _
. $
3;500.00 ,_$_...
__28;000 !.
_ 1,650 '
LF .._
. $
_....__ 90.00. $ .._
._148,500
2,846 `
.. -LF* _
$
...... 32.00 • $
"9;6-00_..
Total Drainage:
- _
� 1,142 _
-- $
569 592
Street light ...
_.Y
60
�+
- - --
host
210,000
EA
_ ' _ _ffem - . - --
Qty --
Unit
SF
Unif Price-
1:50. $
391,281
_ Traffic signal.. _- _ _. - -
__Metalbeam'guard
- --
- 2 -
-
EA
$
200,000.00
$
- 400, -000 -'
railing (wood post)
-
- 13,106 "'
LF
4,500 00 ' $
201,555
Erosion control blanket
2fi2, -000-
_ Traffic sign`
_- 48___
EA_._
_$
-__ 200:00
$_
"9;6-00_..
P� 9 ( ) _.__
Thermoplastic traffic�stri m 4'
- _
� 1,142 _
LF ___
$.
_._. -0:50
$ __-
35;57f
Pavement marker - ___
988
EA _ .
$
-_. 3_.50
$
10,000:00 " $
120,000
__Total Traffic1tems -
Total Miscellaneous
--
Street light ...
_.Y
60
�+
vnn race
3,500.00: $
host
210,000
EA
$
Landscape & irrigation (median & parkway)
260,854
SF
$
1:50. $
391,281
...... Street tree (15 gallon)
1,779
EA
$
85:00: $
151,215
Slope prep & seeding (no irrigation)
44.79
SF
$
4,500 00 ' $
201,555
Erosion control blanket
216,777
SY
_ . $
2....00 , $
_ .433;554 ;
Terrace drain _
46,900
LF
$
28:00 ! $
11313,200
Down drain
Relocate exist power pole
6,566
LF
$
28.00 $
183,848
12
EA
$
10,000:00 " $
120,000
Total Miscellaneous
Items:
II. iRii ht ef'Wav-
Rem y Unit -- Unit Price- -most
QT --
Ri' ht-ofWay- "26 c $ 32,400.00. $ 864;432
se 512 -0 -160 -300 Chaide - arcel" ., -
P 1 EA $ 700;000:00.'$ 700;000
2ighf`of Way--- ` - 44.79 A -- °$�3 "2 400 -00 $ - 1;45i; i96"
- Total Right of Way
Los Angeles Avenue
1 - -LS
$�5 000:00
$ - -500 `
____. _ ___
I: — Roadway Items
,
�'_ 4�Traffic Items.
1 Structural Section:
._ Unif- �:—
Unit-Pnce _- �
Item
Qty _
Unit
Unit Price
Cost
`Finish grade & prime coat
80,145
SF
$ 0.13 $
10,419 '.
- -- --------- �- "-Fog
$ 0.50
$ . 2,740 1
_.___114 ; _EA
$ 3.50
80,145 .. _...
-S F _...
$ 1:62 .. $..
1 X9,835
13 AB
_ ...80.,145,
-SF-
. $ -- - -1.41
_._
Total Structural Section:
,
—`2 Curb, Gutter'& Sidewalk:
Item
._.Qty _.____
Unif
Uinlf Pnce-_---
Cosf --
_ Curti and gutter (Type A2)
5,480 ;
LF
$ 12.00' $
65,760
`Median curb
_.
5,480
LF
$ 10:00 $
54,800
Sidewalk (4" Thick)
24,660
SF _
. $ ----- -4 00 ' $
98,640
Total Curti, Gutter & Sidewalk:
,
� 31)ranage --
_ ... _
Item
_.._
_Qty
Unit
Unit Price
Cost
___'361v RCP mainline —
2,000
LF
_. $ _- 70.00'. $
140,000
8" RCP connector pipe
26
- ;
42:00 $
_. __. 0 920 '
-- —IVfanhoie
—
$ 4 5 00- 00$__._22 800
Connect to existing_
1 - -LS
$�5 000:00
$ - -500 `
____. _ ___
:Total Drainage.
,
�'_ 4�Traffic Items.
._ Unif- �:—
Unit-Pnce _- �
—Cos�-
- Remove traffic striping
_.._.__.__.5,480LS _...,.$._.
_ 0.20
$_ 1;096_.
_Traffic sign
11 EA
$ 200.00
" $ 21200',
.Thermoplastic traffic striping (4 ")
5,480 _ EA
$ 0.50
$ . 2,740 1
Pa�emenfmarker __._.__._ _.____
_.___114 ; _EA
$ 3.50
___$__ —._ 399-
___
TotalTraffic Iteriis:-
-
,
SWiscellaneous items:
Item........ __. __.____.�-- _�_. —. -- Qty -- ___._Unit •__ _..Unit- PiiceW_ -`— _Cos- t - - - --.
__— Street light_ 14 SA $ 3,500.00` $ 49,000
5awcut & remove exist Hu z;,wou , or 40 1.VW ; .v �,y�••
;Remove exist sidewalk, curb, and gutter 9 CS $ 3,000.00 ' $ 3;000
__ .._. £Remove exist retaining wall 1 LS $ 50,000.00 $5000
Total- Miscellaneous: ,
0
2. Quantities and Details — SR23 Bypass (Los Angeles Avenue to
Boardway Road
A. General
1. Project Limit
2. Length and Width
Roadway type:4 lane Controlled Access Secondary
(County Std. B -2 -B modified; see typical
section)
Length: 11,857 ft
Width (R/W to RNV): 98 ft
3. Gradient
Minimum: 1% (County Standard 13-2 -B)
Maximum: 7% (Caltrans Highway Design Manual,
Table 204.3)
4. Alignment and Profile
See attached alignment and profile in Appendice.
B. Earthwork
1. Cross Sections
Cross sections are based on 98 ft RNV and 2:1 slope at
both sides of the roadway. Cross sections are cut at 50 ft
intervals; see cross sections in Appendix. Due to the
limitations of the software, only a 2:1 excavation and
embankment slopes are shown without terraces.
2. Quantities
Excavation and embankment quantities are calculated
using AutoCAD Civil Design version 2000 software. A
10% factor is included in the calculation to allow for
shrinkage. Keyways, benching, and subdrains for
embankment are not quantified; a higher unit cost for
embankment is used to account for these items.
Additional quantities for terraces are added to the
estimate.
7
6 ft wide terraces: 130,288 CY
(for excavation, use same for embankment)
Excavation: 2,064,963 + 130,288 = 2,195,251 CY
Embankment: 2,064,521 + 130,288 = 2,194,809 CY
C. Structural Section
1. Pavement Section
Pavement section is calculated based on a T.I. of 8 as
required by the Ventura County Road Standards Plate 13-
2 -13, and an assumed median subgrade R -value of 25.
Asphalt concrete: 6 in thick
Crushed agg base: 13 in thick
2. Pavement Area
Length: 11,857 ft
Pavement Width: 61 ft
Area: 11,857 ft x 61 ft = 723,277 SF
D. Curb, Gutter, and Sidewalk.
1. General
Assume: A.P.W.A. Standard 120 Type A2 -200 (8)
curb and gutter, W =18"
4 in thick concrete sidewalk, 5 ft wide
A.P.W.A. Standard 120 Type Al -200 (8)
median curb
2. Quantities
Curb and gutter
Length:
11,857 ft x 2 = 23,714 LF
Median curb
Length:
11,857 ft x 2 = 23,714 LF
Sidewalk
Length:
11,857 ft
Width:
5 ft
Area:
11,857 ft x 5 ft x 2= 118,570 SF
E. Drainage
1. Major Culvert
No major culverts identified.
2. Storm drain
Assume: 36" RCP mainline and 18" RCP connector
pipe
From LA Ave to Sta 44 +00: 3,400 LF
Manhole at 400' spacing: 9 EA
Catch basin at 1,000 spacing: 4 x 2 = 8 EA
Connector pipe: 70 ft x 8 = 560 LF
3. Cross Drain
Assume: 24" CMP
Sta 50 +50: 600 LF
Sta 57 +50: 600 LF
Sta 118 +50: 250 LF
Sta 121+25: 200 LF
Total: 1,650 LF
4. Overside Drain
Assume: 12" CMP at 500 ft spacing
60 ft average length
Quantity: 11,857 ft x 60 ft x 2= 2,846 LF
500 ft
F. Traffic Items
1. Traffic Signal
Location Size
Broadway/Walnut Canyon Road 44
Los Angeles Avenue /SR -23 Bypass 44
2. Guardrail
Sta 44 +50 to 110 +00: 6,550 x 2 = 13,100 LF
3. Signing
Assume: 500 ft spacing average
Total: 11,857 ft x 2 = 48 EA
500 ft
0
4. Striping
Left edge line: 11,857 ft x 2 = 23,714 LF
Lane line: 11,857 ft x 2 = 23,714 LF
Bike lane: 11,857 ft x 2 = 23,714 LF
Total: 71,142 LF
5. Pavement markers
Use: 48 ft spacing per Caltrans
Total: 11,857 ft x 4 = 988 EA
48 ft
G. Miscellaneous Items
1. Street Light
Assume: 200 ft spacing average in median per
Ventura County Std. F -9
Total: 11,857 ft = 60 EA
200 ft
2. Landscaping
Assume: 20 ft spacing 15 gallon trees in median
and parkways
13 ft wide landscape in median
4.5 ft wide landscape in parkway
(each side)
1,950,995 SF slope seeding with
no irrigation
Quantity:
Trees: 11,857 ft x 3 = 1,779 EA
20 ft
Landscape & irrigation: 11,857 ft x 22 ft = 260,854 SF
Slope seeding: 1,950,995 SF = 44.79 Ac (all slopes)
3. Erosion control blanket
Assume: Placed on all cut and fill slopes
Total: 1,950,995 SF /9 = 216,777 SY
10
4. Terrace drain
Assume: 25 ft spacing (vertical height) on slopes per UBC
Total: 46,900 ft
5. Down drain
Assume: 400 ft spacing at terrace drains
56 ft length (distance along slope between terrace
drains)
Total: 46,900 ft x 56 ft = 6,566 LF
400 ft
6. Relocate power pole
Total: 12 EA
H. Right -of -Way
1. General
Street right -of -way: 98 ft x 11,857 ft
Slopes (2:1): 1,950,995 SF
Land cost:
Assume:
Mix Unit Price Cost
10% residential $180,000 $18,000
90% agricultural $16,000 $14,400
Total cost per acre: $32,400
2. Quantities
Street R/W: 11, 857 ft x 98 ft = 1,161, 986 S F = 26.68 Ac
P Slope RAN: 1,950,995SF = 44.79 Ac
Total Area: = 71.47 Ac
11
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3. Quantities and Details - Los Angeles Avenue (300' West of SR-
23 Bypass to Kavlico Property)
A. General
1. Project Limit
2. Length and Width
i. Length: 2,740 ft
ii. Width (R/W to R/W): 88 ft
B. Earthwork
1. General
Earthwork quantities have been included in other projects
and are not part of this cost estimate.
C. Structural Section
1. Pavement Section
Assume: 6 in thick AC
13 in thick CAB
2. Pavement Area
Length: 2,740 ft
Width: 8.5 ft
Area: 2,740 ft x 18.5 ft x2 = 101,380 SF
Add left turn lane: 300 ft x 12 ft = 3,600 SF
Total = 80,145 SF
D. Curb, Gutter, and Sidewalk
1. General
Assume: A.P.W.A. Standard 120 Type A2 -200 (8) curb
and gutter, W =18"
4 in thick concrete sidewalk, 5 ft wide
A.P.W.A. Standard 120 Type Al -200
(8) median curb
12
2. Quantities
Curb and gutter
Length: 2,740 ft x 2 = 5,480 LF
Median curb
Length: 2,740 ft x 2 = 5,480 LF
Sidewalk
Length: 2,740 ft
Width: 4.5 ft
Area: 2,740 ft x 4.5 ft x 2= 24,660 SF
E. Drainage
1. Storm Drain
Assume: 36" RCP from SR23 to Happy Camp Drain
Quantity: Mainline: 2,000 LF
Manhole: 5 EA
Catch basin: 4 EA
Connector pipe: 65 LF x 4 = 260 LF
Connect to exist:1 EA
F. Traffic Items
1. Signing
Assume: 500 ft spacing average
Total: 2,740 ft x 2 = 11 EA
500 ft
2. Striping
Lane line: 2,740 ft x 2 = 5,480 LF
Remove existing right edge line: 2,740 ft x 2 = 5,480 LF
3. Pavement markers
Use: 48 ft spacing per Caltrans
Total: 2,740 ft x 2 = 114 EA
48 ft
13
G. Miscellaneous Items
1. Street Light
Assume: 200' spacing average in median per Ventura
County Std. F -9
Total: 2,740 ft = 14 EA
200 ft
2. Landscaping
Assume: 20 ft spacing for trees
13 ft wide landscape in median (no parkway)
Quantity:
Trees: 2,740 ft x 1 = 137 EA
20 ft
Landscape: 2,740 ft x 13 ft = 35,620 SF
3. Remove Existing
Sawcut and remove AC: 2,740 ft x 1 ft x 2 = 5,480 SF
Remove sidewalk: 1 LS
Remove retaining wall: 1 LS
H. Right -of -Way
1. General
Right -of -way quantities have been included in other projects
and are not part of this cost estimate.
14