HomeMy WebLinkAbout12-Development Servicesi~
CITY OF SAN BERNARDINO - REQUEST FOR COUNCIL ACTION
From: Valerie C. Ross, Director Subject:
Dept: Development Services
Date: July 9, 2008
File Nos. 3.7707; 3.7706; 3.7702;
3.7571
Authorize the Director of
Development Services to execute
Contract Change Order No. One with
Nikola Corporation for Sewer and
Street Improvements for various
streets (SW07-02, SW07-01, SW06-
O1 & SW06-09), per Project Plan No.
11868.
MCC Date:
August 18, 2008
Synopsis of Previous Council Action:
August 20, 2007 The Mayor and Common Council approved FY 2007-08 CIP Budget.
December 3, 2007 The Mayor and Common Council adopted Resolution awarding a
contract to Nikola Corporation for Sewer and Street Improvements
(SW07-02 SW07-Ol, SW06-O1 & SW06-09), per Project Plan No.
11868, per Plan No. 11916.
Recommended Motion:
~` Authorize the Director of Development Services to execute Contract Change Order No. One
•/ with Nikola Corporation for Sewer and Street Improvements for various streets (SW07-02,
SW07-O1, SW06-Ol & SW06-09), per Project Plan No. 11868.
l~t?l.Lcl/ G. ~va~-
Valerie C. Ross
Contact Person: Robert Eisenbeisz, City Engineer Phone: Ext. 5203
Supporting data attached: Staff Report ,Cost Distribution Ward: 2, 3, & 7
Chart, and Change Order No. One
FUNDING REQUIREMENTS: Amount: $29, 653.11
245-365-5504-7707; 245-365-
Source: (Acct. Nos.) 5504-7706; 132-431-5505-7702
& 245-365-5504-7571
Acct. Description: Sewer Line Construction Funds
Finance:
Council Notes:
Agenda Item No.'~~2
8 ~g'+~
CITY OF SAN BERNARDINO - REQUEST FOR COUNCIL ACTION
STAFF REPORT
Subject:
Authorize the Director of Development Services to execute Contract Change Order No. One with
Nikola Corporation for Sewer and Street Improvements for various streets (SW07-02, SW07-O1,
SWO6-01 & SW06-09), per Project Plan No. 11868.
Background:
In 2006, residents of the 24`h Street location reported sewage system overflows in this area. Calls
to the Public Services Department prompted a request for sewer improvements. The source of
the problem was located west of "G" Street, north of 24a' Street (in the rear of properties along
24`" Street and 25`h Street). Due to a lack of capacity staff determined that the best way to correct
the problem was to install a pazallel sewer line in 24`h Street between "G" Street and "H" Street.
This will reduce the flow in the line along the rear of the properties, reducing the potential for
overflow.
This project involved the installation of new sewer main lines in four (4) locations. The first
three locations included Cedar St., Canyon Rd., and Wallace Ct., all of which serve azeas
annexed into the City in 1990 and 1991. Since the pavement for these streets was in poor
condition, the scope of the project also included rehabilitation of the pavement after the sewer
installation. This project consisted of cutting the existing streets and installing new sewer lines
with laterals, filling, compacting, and patching the trenches, and grinding and overlaying the
entire street from curb to curb, except on 24`s Street, which was not rehabilitated.
On December 3, 2007, the Mayor and Common Council approved a Resolution to. awazd a
contract to Nikola Corporation for Sewer and Street Improvements (SW07-02, SW07-O1, SW06-
OI & SW06-09), per Project Plan No. 11868.
Chan eg Order:
During construction of the sewer and street improvements the contractor encountered several
unforeseen conditions and unknown utilities as follows:
On Canyon Street, the contractor encountered numerous domestic and fire hydrant laterals
that were not located properly according to available records. These facilities required
relocation by the San Bernardino Municipal Water Department to obtain the required
distance from the new sewer line. During the relocation of the waterlines, the contractor
incurred delays (demobilization and remobilization) that resulted in a cost of $10,768.76.
2. Once the new manhole was installed on Cedar Street, the sewer line began to backup. The
City requested the contractor to excavate the existing sewer main to reveal the problem. It
was discovered that the existing sewer mainline had a reverse fall, causing the sewer main to
backup. The investigation into the mainline back up resulted in a cost of $6,631.77.
z
08/072008 11:31 AM
O CITY OF SAN BERNARDINO - REQUEST FOR COUNCIL ACTION
STAFF REPORT (Continued)
`./
3. On Wallace Court, the contractor encountered deteriorating clay pipe necessitating removal
at a cost of $3,236.11.
4. The additional five remaining items of the change order include additional costs related to
repairing and/or encasing facilities discovered during excavation but not identified on plans,
removing a deteriorated manhole, adding a sewer clean out and the addition of a sewer line to
provide for a sewer lateral connection. These items totaled $9,016.47.
Financial Impact:
The revised estimated project costs are as follows:
TOTAL
Ori final Contract Amount $ 915,594.21
Contract Chan a Order No. One $ 29,653.11
Revised Contract Amount $945,247.32
Administrative Costs $137,339.13
Total Project Cost $ 1,082,586.40
This change order represents a net increase of 3.24% in the contract amount.
As referenced in the attached Cost Distribution, sufficient funds are in Account No's. Acct. No.
245-365-5504-7707 "Cedar Street Sewer Main Installation from Baseline Street to Gilbert
Street," Acct. No. 245-365-5504-7706 "Canyon Road Street Sewer Main Installation from
Baseline Street to Gilbert Street," Acct. Nos. 245-365-5504-7702 & 132-431-5505-7702
"Wallace Court Street Sewer Main Installation from Richardson Street, east to the end," and
Acct. No. 245-365-5504-7571 "G Street. Sewer Main Extension from Highland Ave to 27`s
Street."
Recommendation:
Authorize the Director of Development Services to execute Contract Change Order No. One with
Nikola Corporation for Sewer and Street Improvements for Cedar St. from Baseline St. to Gilbert
St., Canyon Rd. from Baseline St. to Gilbert St., Wallace Ct. from Richardson St. to the easterly
terminus, and 24"' St. from "H" St. to "G" St. (SW07-02, SW07-O1, SW06-O1 & SW06-09), per
Project Plan No. 11868.
Attachments:
Change Order No. One
Cost Distribution Chart
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San Berner ~ino
DEVELOPMENT SERVICES DEPARTMENT
300 North "D" Street • San Bernardino • CA 92418-000]
Pl:inning & Building 909.384.5057 • Fax: 909.384.5080
Puhli~r \\"urksBngineering 909.384.5111 • Fax: 909.384.5155
www.sbcity.org
CONTRACT CHANGE ORDER NO. ONE
FILE NO. 3.7707; 3.7706; 3.7702; 3.7571 W.O. N0.7707 DATE: August 18, 2008
PROJECT: SEWER & STREET IMPROVEMENTS AT CEDAR STREET,
BASELINE ST TO GILBERT ST (SW07-02); CANYON ROAD,
BASELINE ST TO GII.BERT ST (SW07-Ol); WALLACE COURT,
RICHARDSON ST TO EAST END (SW06-Ol); & 24TH STREET, "H"
STREET TO "G" STREET (SW06-09), PER PROJECT PLAN
NO. 11868.
TO: NIKOLA CORPORATION
18012 COWAN, STE. 290
IRVINE, CA 92614
GENTLEMEN:
You are hereby compensated for performing the additional work as follows:
Tl'EM NO: DESCRIPTION OF CHANGE COST
1-1 Remove 75' of Existing Clay Pipe $ 3,236.11
1-2 Repair of 8" V.C.P. $ 1,912.90
1-3 Hand Tunnel & Encase Sewer Mainline $ 1,070.64
1-4 Core Existing Manhole at Sta. 12 + 06 $ .1,492.74
1-5 Demo Manhole at Sta. 12 + 52 $ 4,150.19
1-6 Demobilization /Remobilization $ 10,768.76
1-7 Add 8" Sewer Clean-Out $ 390.00
1-8 Investigate Mainline Back-Up at Sta. 12 + 52 $ 6,631.77
TOTAL COST CCO #1 $ 29,653.11
CHANGE ORDER NO. ONE - NIKOLA CORPORATION
SEWER & STREET IMPROVEMENTS AT CEDAR STREET, BASELINE ST TO GILBERT ST (SW07-02); CANYON ROAD,
BASELINE ST TO GILBERT ST (SW W-01): WALLACE COURT, RICHARDSON ST TO EAST END (SW06-Ot); & 24T"
STREET, "H" STREET TO "G" STREET (SW06-09), PER PROTECT PLAN NO. 11868.
V
JUSTIFICATION:
Remove 75' of Existing Clay Pipe ',
On Wallace Ct. at Sta 10+69.OQ, the approved plans called out to remove an existing
Item 1-1 plug from the manhole to begin construction of the sewer mainline. This plug did not
No.
- exist, instead the contractor encountered 75' of clay sewer pipe. It was necessary to
remove this deteriorated i e and dis ose of it to be in construction of the mainline.
Repair of 8" V.C.P.
On Cedar St. at 27+75, the contractor encountered an unmazked 8" V.C.P. line. The
1-2 clearance between the existing 8" line and the new proposed line was 1.5". The
contractor was directed to r air the 8" V.C.P. and to encase the sewer mainline.
Hand Tunnel & Encase Sewer Mainline
On Cedar St. at Sta. 2+40, a 4" waterline, which was not shown on the plans, was
1-3 encountered. It was necessary to hazd dig under the water main and to encase the
sewer main.
Core Existing Manhole at Sta. 12 + 06
The project terminated at Sta. 12+06 on Cedaz St. A sewer lateral was determined
i-4 to be located an additiona140' beyond the terminated manhole. The contractor was
required to core the new manhole and add an additional 40' of mainline to connect
the additional lateral not shown on the laps.
Demo Manhole at Sta. 12 + 52
The terminus manhole and the existing manhole on Cedaz St. were within
5'centerline-to-centerline of each other. The design contemplated protecting the
1-5 existing manhole in places but, due to the extent of deterioration of the existing
manhole, it was necessary to remove the manhole to allow for installation at the new
manhole.
Demobilization / Remobilization
On Canyon St., the contractor encountered numerous water laterals and fire hydrant
i-6 runs that would be too close to new sewer main. It was necessary for the contractor
to demobilize and remobilize after the SBMWD relocated the water laterals.
Add 8" Sewer Clean-Out
i-7 C.C.O. Item No. 1.4 add an additional 40' of sewer main on Cedaz St. to facilitate
maintenance, an 8" clean-out was installed at the end of the sewer mainline.
Investigate Mainline Back-Up at Sta. 12 + 52
On Cedar St. at Sta. 12+52, the newly installed manhole was backing up and
1-8 holding water. The City requested the contractor to excavate the existing sewer
main. It was discovered that the existing sewer mainline has reverse fall approx.
25' from the manhole.
CHANGE ORDER NO.ONE - NBCOLA CORPORATION
SEWER & STREET ~1PROVEMENTS AT CEDAR STREET, BASELINE ST TO GILBERT ST (SW07-02); CANYON ROAD,
BASELME ST TO GILBERT ST (SW07-0i); WALLACE COURT, R[CHARDSON ST TO EAST END (SW06-01); & 24~" STREET,
"H" STREET TO "G" STREET (SWOb•09), PER PROTECT PLAN NO. 11868.
4/
Additional time to complete Contract due to this Change Order .......................... 30 Working
Days
This change order represents 3.24% of the original contract amount.
NIKOLA CORPORATION
CONTRACTOR
Accepted
By:
Title:
CITY OF SAN BERNARDINO
DEVELOPMENT SERVICES
Approved
sy:
VALERIE C. ROSS
Director of Development Services
Approved by Mayor and Common Council
Date: August 18, 2008
Item No.