CB2102-Addendum 02.pdf
PDF 1 MB Posted
- Solicitation number
- S-C01510-00012592
- Issued by
- Lake County, Oregon
About this file
This is Addendum No. 2 issued by the Linn County Road Department for the Owl Creek, Peoria Road Bridge Replacement project in Oregon, dated February 4, 2025. The bid opening is scheduled for February 18, 2025 at 9:35 PDT at the Linn County Courthouse. The addendum makes changes to the project bidding documents, specifically updating the regulated work areas section to specify that work within regulated areas must only be performed during the in-water work period of July 1 to October 31. Additionally, it requires the insertion of Sheet RD-04 between sheets RD-03 and RD-05 in the project plans.
The attached Sheet RD-04 provides detailed erosion control plans for the bridge replacement project, including specifications for sandbag placement, sediment barriers, work zone fencing, and permanent seeding. The plan includes specific requirements for erosion control facilities implementation, maintenance procedures, and construction staging requirements. The sheet contains technical drawings showing the placement of erosion control measures along Owl Creek and includes a sandbag detail diagram with installation specifications.
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Text version
N 0°15'26.23" W
EROSION CONTROL PLAN
1" = 20'-0"
3+
4+
5+
ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW
ROW
ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW
ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW
R O
W
ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW ROW
O w l C re ek
Permanent seeding Sediment barrier, Type 3 per RD1030 Work zone fencing per Section 00221.13
Wetland boundary - no work zone
Catch lines (construction limits)
Sandbag location when working on the north bank, typ.
Sandbag location when working on the south bank, typ.
Sandbags Storm drainage Flow Direction
K
EV
I N M . GROO
M
17206PE
OREGON
Expires: 6/30/25
General Notes:
1. The implementation of the erosion control plans and the construction, maintenance, replacement and upgrading of the erosion control facilities are the responsibility of the Contractor until all construction is completed and approved.
2. Installation, construction, and maintenance of erosion control facilities shall begin prior to clearing, grading, or other earth altering activities.
3. The erosion control facilities shown on this plan are anticipated for site conditions. During the construction period, these facilities shall be upgraded for unexpected storm events to insure that sediment and sediment laden water does not leave the site.
4. If the contractor elects to access beyond the limits shown, the erosion control details shown shall be extended past the limits of the work bridge and access.
5. Develop a revised plan of the erosion control facilities shown in accordance with the requirements of Section 00280 of the Oregon Standard Specifications for Construction. This plan must be constructed in conjunction with all clearing and grading activities. Construct in such a manner as to insure that sediment and sediment laden water does not enter the drainage system, roadway, or violate applicable water standards. Construct controls in segments applicable to each staging phase.
6. Stabilized construction entrances shall be installed at the beginning of construction and maintained for the duration of the project. Additional measures may be required to insure that all paved areas are kept clean for the duration of the project.
SANDBAG DETAIL
NO SCALE
Check dam, Type 4, sand bag, typ.
6 mil. or thicker polyethylene sheet
Water surface
Existing stream bottom
Notes:
1. Sandbags shall meet the requirements of
Section 00280.15 of the Specifications.
2. Stagger sandbag rows for stability.
3. Extend polyethylene sheet 6" minimum above water level.
4. One bag thickness shown, but multiple layers may be required for stability.
5. Add layers of sandbags and extend polyethylene sheet as required if water elevation increases.
Stream Side Work Side
K:
\P ro je ct s
- C ur re nt
\B R
2-
O w l C re ek
(P eo ria R oa d)
B rid ge \K
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\A C
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D es ig n.
dw g
2/ 4/
:4
PM
SCALE: as shown SHEET RD-04
EROSION CONTROL PLAN1/13/20250002-0306
D. Malone
K. Groom
E-MAIL: Roads@co.linn.or.us
FAX: (541) 924-0202
PHONE: (541) 967-3919
ALBANY, OREGON 97322
3010 FERRY STREET SW
CB2102
A. Potts
K. Groom
OWL CREEK - PEORIA ROAD
BRIDGE REPLACEMENT
LINN COUNTY
T. 12 S., R. 04 W., SECTION 17, W.M.
WARNING
If this bar does not measure 1" then drawing is not to scale Digitally signed by Kevin M. Groom Date: 2025.02.04 14:49:38-08'00'
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