CMS Site Reno Addendum No. 4 - 260512-01.pdf

PDF 944 KB Posted Apr 22, 2026

Attached to: Centennial Middle School Site Renovation - No 260512-01
Solicitation number: S-P26028-00016709
Issued by: Oregon

About this file

Written by GovTribe AI · May 19, 2026

This is Addendum No. 4 to the contract documents for the Centennial Middle School Site Renovations Project #260512-01 in Oregon, issued by the Centennial School District on May 6, 2026. The addendum clarifies design specifications and construction requirements for site improvements including asphalt paving (20,372 SF of AC area plus 436 SF of additional AC area), concrete sidewalks and pedestrian pavements, curbing, drainage systems, landscaping, and fencing. The bid due date remains unchanged at Tuesday, May 12, 2026, at 2:00 PM. The addendum includes a revised drawing (Sheet C4.0 - Paving and Horizontal Control Plan, dated 5/6/2026) and provides responses to eight contractor questions regarding material specifications, concrete reinforcement requirements, expansion joint details, tree maintenance responsibilities, drainage specifications, seeding scope, and temporary fencing requirements.

Key clarifications include establishing that civil drawings govern over landscape drawings for pedestrian sidewalk specifications; requiring reinforcement of the mower travel area (315 SF) with #3 rebar spaced every 12 inches on center with control joints every 6 feet; mandating 12-inch expansion joints with silicone sealant between existing curbing and proposed sidewalk and between existing building foundation and proposed asphalt; confirming trees are included in the contract scope with contractor-provided watering bags until project turnover; limiting seeding to disturbed areas only; and requiring full site fencing that can combine temporary and permanent components. All subcontractors affected by this addendum must be notified of these changes.

View the file

Other files

File	Type	Posted
CMS Site Renovations Addendum No 2 - 260512-01.pdf	PDF	Apr 22, 2026
CMS Site Renovations Addendum No 1 - 260512-01.pdf	PDF	Apr 22, 2026
2026.5.5. CMS Play Add 3.pdf	PDF	Apr 22, 2026
CMS Site Renovations Final Project Manual.pdf	PDF	Apr 22, 2026
CMS Site Renovations - No 260512-01.pdf	PDF	Apr 22, 2026
CMS Site Renovations Final Project Drawings.pdf	PDF	Apr 22, 2026

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CENTENNIAL MIDDLE SCHOOL SITE RENOVATIONS

PROJECT #260512-01

May 6, 2026

ADDENDUM NO. FOUR (4)

THE FOLLOWING CHANGES, ADDITIONS, AND DELETIONS TO THE CONTRACT DOCUMENTS

DATED MAY 6, 2026, HEREBY BECOME A PART OF THE CONTRACT DOCUMENTS, PER THE

ORIGINAL CONTRACT DOCUMENTS DATED APRIL 22, 2026.

NOTIFY ALL SUBCONTRACTORS AFFECTED BY THIS ADDENDUM.

BID DUE UNCHANGED: Tuesday, May 12, 2026, 2:00 PM

SPECIFICATIONS

N/A

DRAWINGS

C4.0 Revised Attached

GENERAL INFORMATION

Item 2. QUESTION: Landscape Drawings call for reinforced with thickened edge concrete sidewalk, but civil legend says “unreinforced” 4” ped sidewalk. Which one should we follow?

ANSWER:

A. Civil shall govern. The existing extruded curb along the parking lot to remain.

B. A callout has been added to the back edge of existing curb as follows: “Construct ½”

Expansion Joint with silicone sealant at top between back of existing curb and proposed sidewalk.” Refer to revised Sheet C4.0, attached.

C. A callout to reinforce an area of concrete where mower will travel has been added, as follows:

“Reinforce mower travel area, 315 SF, with #3 Rebar spaced every 12” on mid slab. Construct control joints every 6’ in this area”. Refer to revised Sheet C4.0, attached.

Item 3. QUESTION: 1A/L5.1 shows no base rock below sidewalk, but civil legend on C4.1 calls for 6” rock over geotextile. Which detail should we follow?

ANSWER:

A. Civil shall govern. Refer to Paving Legend on C4.0.

Item 4. QUESTION: Can you provide a detail for asphalt paving, or should we just use the legend on

C4.0 as a guideline?

ANSWER:

A. Refer to Paving Legend on C4.0 for paving section.

B. A callout has been added at the existing building foundation and new asphalt interface as follows: “Construct ½” Expansion Joint with silicone sealant at top between existing building foundation and proposed asphalt paving.” Refer to revised Sheet C4.0, attached.

Item 5. QUESTION: Are the trees on L3.1 in this contract? If so, how will they get watered?

A. Yes, trees are in the contract.

CENTENNIAL MIDDLE SCHOOL SITE RENOVATIONS

PROJECT #260512-01

May 6, 2026

ADDENDUM NO. FOUR (4)

B. Trees shall be provided with watering bags and filled till project turnover, at which point the district will maintain those.

Item 6. QUESTION: What detail are we to follow for the EWF area? 1E/L5.1, or 9/C5.0?

A. Both apply. Refer to Landscape drawings for elevations and edge details for EWF, per Addendum 3. Refer to Civil for drain rock and perforated pipe below EWF, per Addendum 3.

Item 7. QUESTION: L3.1 shows seeding that’s outside of the work zone area. Should we bid to seed this area even though we’re not disturbing it? Are we supposed to bid to strip/haul-off the sod in this area and re-seed?

ANSWER:

A. Only in areas disturbed.

B. Refer to note in Legend on L3.1.

Item 8. QUESTION: Is temp fencing required surrounding the entire site?

A. Yes, the construction zone must be fully fenced but can be a combination of temporary and permanent components.

END OF ADDENDUM FOUR (4)

Attachments: C4.0 dated 5/6/2026

CO CO

COCO

PAVING AND

HORIZONTAL

CONTROL PLAN

C4.0

PLAN SCALE

PAVING AND HORIZONTAL CONTROL PLAN

SCALE: 1" = 10'

74-23118-00

03/20/2026

L M

C H

O O

- P

BID & PERMIT SET

REVISIONS

A B C D E F

C4.0

B R

O O

EXPIRATION DATE: 06/30/26

91653PE

OREGON

ENG INEER

SEPT 13 , 20 16

A N

DREA W . STANCL

I F

G I S

TERED PROFESS IONAL

1498 E. Main Street, Suite 103, #345

Cottage Grove, Oregon 97424 www.gaia-engineering.com

503-830-3635

D , O

O N

CONST PCC

CONCRETE AREA,

40 SF

CONSTRUCTION NOTES

1. CONSTRUCT FULL DEPTH CURB PER DETAIL 6, SHEET C5.0.

2. CONSTRUCT AT GRADE CURB PER DETAIL 6, SHEET C5.0.

3. CONSTRUCT VALLEY GUTTER PER DETAIL 7, SHEET C5.0.

4. CONSTRUCT MOUNTABLE CURB PER DETAIL 8, SHEET C5.0.

PAVING LEGEND

PLAY AREA ASPHALT PAVEMENT

3" COMPACTED LIFT, ASPHALT PAVEMENT, OVER

6" COMPACTED DEPTH, 1 1/2"-0 CRUSHED ROCK, OVER

GEOTEXTILE FABRIC, OVER

APPROVED SUBGRADE

PEDESTRIAN CONCRETE PAVEMENTS

4" DEPTH 3,000 PSI PCC PAVEMENT (NON-REINFORCED) OVER

6" MINIMUM DEPTH 34"-0 CRUSHED ROCK BASE OVER

GEOTEXTILE FABRIC OVER

APPROVED SUBGRADE.

CHANGE OF CURB TYPE

290 LF2

REFER TO LANDSCAPE PLANS

AND SPECIFICATIONS FOR

PROPOSED PLAY AREA

STRIPING LAYOUT AND

INSTALLATION REQUIREMENTS

EXISTING SCHOOL

FFE=262.43'

EXISTING

PARKING

LOT

EXISTING ASPHALT

TRACK AREA

EXISTING

PROPERTY LINE,

TYP.

PROPOSED CONCRETE

AREA, REFER TO

LANDSCAPE

ARCHITECT PLANS

FOR JOINTING PLAN

PROPOSED ASHALT

CONCRETE (AC) AREA,

20,372 SF

5' CURB

TRANSITION

16 LF 1

4 LF 1

2' CURB TRANSITION

12" WIDE CONCRETE FENCE

FOUNDATION, TYP.

SEE LANDSCAPE ARCHITECT

PLANS

SWING SET AREA EDGING, TYP.

SEE LANDSCAPE ARCHITECT

PLANS

10 LF 4

3' CURB TRANSITION

100 LF 3

CHAINLNK FENCE

AND POSTS, TYP.

SEE LANDSCAPE

ARCHITECT PLANS

FOR DETAILS

CAUTION! EX LIGHT

POLE AND ELECTRICAL

CONDUIT TO REMAIN

AND BE PROTECTED IN

PLACE DURING

CONSTRUCTION

CAUTION! EX LIGHT

POLE AND ELECTRICAL

CONDUIT TO REMAIN

AND BE PROTECTED IN

PLACE DURING

CONSTRUCTION

POINT NORTHING EASTING DESCRIPTION

ASPHALT/CURB

POINT TABLE - ASPHALT AND CURBS

165024.05 397319.751

ASPHALT/CURB

ASPHALT

CURB TRANSITION

CURB

VALLEY GUTTER

33 34

43 44

165024.07 397322.25

165024.08 397323.72

165024.10 397325.72

165030.05 397320.18

165030.10 397325.68

165024.27 397347.77

165034.11 397347.77

165034.05 397336.71

165048.76 397325.56

165048.79 397319.75

ASPHALT/CURB

ASPHALT

165042.14 397320.03

165042.14 397314.54

165042.14 397229.63

165031.97 397319.47

164999.95 397219.48

ASPHALT/CURB

CURB

164990.12 397209.96

164990.12 397193.00

164979.95 397182.84

164890.51 397182.83

164880.44 397192.99

164880.96 397196.15

164878.59 397198.03

164857.92 397196.24

164848.16 397116.64

CURB

164848.01 397084.52 CURB

164847.13 397114.34 CURB

164844.21 397117.34 CURB

164859.57 397211.78 CURB TRANSITION

164861.01 397214.43 MOUNTABLE CURB

164865.77 397223.23

164867.20 397225.86 CURB TRANSITION

MOUNTABLE CURB

164878.59 397296.62 VALLEY GUTTER

164876.70 397323.17 CONCRETE WALK

164876.73 397326.73 CONCRETE WALK

164880.95 397321.76 CURB

164882.53 397326.70 CONCRETE WALK

164886.33 397326.67 CONCRETE WALK

164890.53 397326.66 CONCRETE WALK

164900.33 397321.61 CURB

165014.86 397194.86 EDGING

165014.86 397102.20 EDGING

165048.53 397102.20 EDGING

165048.53 397194.86 EDGING

NOTE: REFER TO SURVEY DRAWING FOR CONTROL POINTS

PROPOSED ASHALT

CONCRETE (AC) AREA,

436 SF

PROPOSED ROOF STRUCTURE

AND CONCRETE FOOTINGS.

REFER TO SEPARATE PLANS AND

SPECIFICATIONS FOR DETAILS

2 04/21/2026 ADDENDUM #2

REINFORCE MOWER

TRAVEL AREA, 315 SF,

WITH #3 REBAR

INSTALLED EVERY 12"

ON CENTER, MID SLAB.

CONSTRUCT CONTROL

JOINTS EVERY 6' IN

THIS AREA.

CONSTRUCT 12" EXPANSION JOINT

WITH SILICONE SEALANT AT TOP,

BETWEEN BACK OF EXISTING CURB

AND PROPOSED SIDEWALK, TYP.

CONSTRUCT 12" EXPANSION JOINT

WITH SILICONE SEALANT AT TOP,

BETWEEN EXISTING BUILDING

FOUNDATION AND PROPOSED

ASPHALT PAVING, TYP.

CONSTRUCT 10 LF

THICKENED EDGE ON

SIDEWALK PER DETAIL

1A, SHEET L5.1

4 05/06/2026 ADDENDUM #4

C4.0

ISOLATION JOINT

NOT TO SCALE

AutoCAD SHX Text

1 INCH = FT.

AutoCAD SHX Text

AutoCAD SHX Text 2 C4.0

Addendum No. 4 - 260512-01

C4.0 - PAVING AND HORIZONTAL CONTROL PLAN - ADD-04

Sheets and Views

C4.0

File details come from the government source that posted it. Updated May 19, 2026.