25PW15 - Addendum No. 1 - Plan Sheets.pdf

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Attached to
25PW15 - Parrott Creek Culvert Replacements
Solicitation number
S-KR1079-00016422
Issued by
Deschutes County, Oregon

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Written by GovTribe AI ·

This is Addendum No. 1 to the plan sheets for Project 25PW15, the Parrott Creek Culvert Replacement project managed by the City of Roseburg Public Works Department in Roseburg, Oregon. The addendum provides detailed construction plan sheets for the replacement of existing corrugated metal pipe culverts with new precast concrete three-sided box culverts at four locations: Kane Street, Giles Street, and Ichabod Street. The project involves the removal of existing 6-foot and 6-foot-6-inch diameter culverts and installation of new 14-foot-wide by 6-foot-tall precast concrete culverts with precast strip footings. Associated work includes installation of Contech Stormfilter concrete catchbasins with dual 27-inch cartridges, storm sewer systems ranging from 8 inches to 12 inches in diameter with varying slopes, standard curb installation, block retaining walls with 4-foot chainlink fencing, and sanitary sewer pipe replacement and relocation. The plan sheets, issued as Addendum No. 1 on March 24, 2026, include horizontal and vertical construction details with specific elevation data, slope percentages, and keyed construction notes numbered sequentially for each street location. The construction contract expiration date is December 31, 2026.

The plan sheets detail additional requirements including erosion control measures comprising Type G matting over fine compost with permanent seed and tackifier applied over a 2-inch thick compost erosion blanket, installation of 2-foot-thick engineered streambed material, and mailbox relocation. Utility coordination is required with Avista for temporary gas line relocations and reinstatement following culvert installation. The sheets reference compliance with Oregon Administrative Rules (OAR 952-001-0010 through OAR 952-001-0090) regarding underground facility location and include standard notations to call before digging (One Call at 800-332-2344). Design plans were prepared by i.e. Engineering, Inc., located at 809 SE Pine Street, Roseburg, Oregon, and are stamped with Oregon Professional Engineer Registration No. 72679PE. The addendum was digitally signed and issued on April 9, 2026, with a contract expiration date of December 31, 2026.

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Other files

File Type Posted
25PW15 - Geotech Design- Parrot Creek Roseburg~1.pdf PDF
25PW15 - Drawings~1.pdf PDF
25PW15 - Specification Documents 3-24-2026.pdf PDF
25PW15 - Bid Opening Results.pdf PDF
25PW15 - Addendum No. 1.pdf PDF

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KANE STREET

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STRUCTURAL BACKFILL PER GEOTECH REPORT

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REPLACE EXTG. SANITARY SEWER MANHOLE

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12" THICK, 1"-0 BASE ROCK

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PRECAST STRIP FOOTINGS

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EXTG. CULVERT TO BE REMOVED

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EXTG. SANITARY PIPE

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EXTG. SANITARY MANHOLE

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CALL BEFORE YOU DIG ! ONE CALL: (800) 332-2344

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1. REMOVE EXTG. CMP CULVERT. INSTALL 30 FEET OF NEW 14' REMOVE EXTG. CMP CULVERT. INSTALL 30 FEET OF NEW 14' WIDE x 6' TALL, PRECAST CONCRETE THREE SIDED CULVERT WITH PRECAST FOOTINGS. 2. INSTALL CONTECH STORMFILTER SINGLE UNIT CONCRETE INSTALL CONTECH STORMFILTER SINGLE UNIT CONCRETE CATCHBASIN WITH TWO, 27" CARTRIDGES. RIM ELEV = 500.2 8" INV IN() = 497.7 12" INV OUT(E) = 494.7 3. REMOVE AND RELOCATE EXISTING MAILBOX REMOVE AND RELOCATE EXISTING MAILBOX 4. INSTALL 70 FEET OF STANDARD CURB, SEE DETAIL SHEET INSTALL 70 FEET OF STANDARD CURB, SEE DETAIL SHEET SD1. 5. INSTALL 30 FEET OF 12" STORM SEWER @ 0.05% SLOPE INSTALL 30 FEET OF 12" STORM SEWER @ 0.05% SLOPE OUTFALL = 494.55 6. INSTALL BLOCK RETAINING WALLS, SEE SHEETS C8 FOR INSTALL BLOCK RETAINING WALLS, SEE SHEETS C8 FOR DETAILS. INSTALL 4-FOOT CHAINLINK FENCE ON TOP OF WALL. 7. INSTALL TYPE G MATTING OVER FINE COMPOST WITH INSTALL TYPE G MATTING OVER FINE COMPOST WITH PERMANENT SEED AND TACKIFIER INCORPORATED OVER A 2" THICK COMPOST EROSION BLANKET USING MEDIUM COMPOST WITH TACKIFIER. 8. INSTALL 2' THICK LAYER OF ENGINEERED STREAM BED INSTALL 2' THICK LAYER OF ENGINEERED STREAM BED MATERIAL. 9. PAVING LIMITS. PAVING LIMITS. 10. REMOVE EXTG. PIPE AND INSTALL NEW 10" SANITARY SEWER REMOVE EXTG. PIPE AND INSTALL NEW 10" SANITARY SEWER PIPE. MATCH EXTG. SLOPE. CONNECT TO EXTG. PIPE WITH FERNCO STRONG BACK SHIELDED COUPLER. 11. CONTRACTOR TO COORDINATE WITH AVISTA FOR TEMPORARY CONTRACTOR TO COORDINATE WITH AVISTA FOR TEMPORARY GAS RELOCATIONS. AVISTA WILL CAP GAS LINE DURING THE CONSTRUCTION. AFTER CULVERT IINSTALLATION IS COMPLETE, CONTRACTOR SHALL COORDINATE WITH AVISTA FOR REINSTALLATION OF THE GASLINE DURING BACKFILLING. 12. INSTALL 130 FEET OF 8" STORM SEWER @ 12.9% SLOPE. INSTALL 130 FEET OF 8" STORM SEWER @ 12.9% SLOPE. 13. REMOVE EXISTING STORM PIPE. REMOVE EXISTING STORM PIPE. 14. REMOVE AND INSTALL NEW 48" SANITARY SEWER MANHOLE. REMOVE AND INSTALL NEW 48" SANITARY SEWER MANHOLE. RIM = 504.9 8" INV IN (NE) = 500.2 8" INV OUT (SW) = 500.1 15. RECONNECT EXTG. SEWER LATERAL, MATCH EXISTING SIZE. RECONNECT EXTG. SEWER LATERAL, MATCH EXISTING SIZE.

AutoCAD SHX Text ASPHALT MATTING WITH COMPOST BLANKET ENGINEERED STREAM BED MATERIAL STRUCTURAL BACKFILL BASE ROCK

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3" THICK, HALF-INCH DENSE GRADED, LEVEL 2 HMAC. MATCH EXISTING GRADES.

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12" THICK, 1"-0 BASE ROCK

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PRECAST STRIP FOOTINGS

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EXTG. CULVERT TO BE REMOVED

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EXTG. SANITARY PIPE

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EXTG. SANITARY MANHOLE

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CALL BEFORE YOU DIG ! ONE CALL: (800) 332-2344

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OAR 952-001-0010 THROUGH OAR 952-001-0090

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AutoCAD SHX Text ASPHALT MATTING WITH COMPOST BLANKET ENGINEERED STREAM BED MATERIAL STRUCTURAL BACKFILL BASE ROCK

1. REMOVE 35' OF EXTG. 6' DIAMETER CMP CULVERT. INSTALL REMOVE 35' OF EXTG. 6' DIAMETER CMP CULVERT. INSTALL 35 FEET OF NEW 14' WIDE x 6' TALL, PRECAST CONCRETE THREE SIDED CULVERT WITH FOOTINGS. 2. INSTALL CONTECH STORMFILTER SINGLE UNIT CONCRETE INSTALL CONTECH STORMFILTER SINGLE UNIT CONCRETE CATCHBASIN WITH TWO, 27" CARTRIDGES. RIM ELEV = 506.45 8" INV IN(W) = 502.25 12" INV IN(NE) = 502.50 12" INV OUT(SE) = 501.50 3. INSTALL 50 FEET OF 12" STORM SEWER @ 3.0% SLOPE INSTALL 50 FEET OF 12" STORM SEWER @ 3.0% SLOPE 4. INSTALL 45 FEET OF STANDARD CURB INSTALL 45 FEET OF STANDARD CURB 5. INSTALL TYPE G-2 INLET INSTALL TYPE G-2 INLET GRATE ELEV = 506.5 8" INV OUT(E) =502.35 6. INSTALL TYPE G-2 INLET INSTALL TYPE G-2 INLET GRATE ELEV = 506.5 EXTG. 12" INV IN (NE) = 504.65 12" INV OUT(SW) =504.00 7. INSTALL BLOCK RETAINING WALLS, SEE SHEETS C12 FOR INSTALL BLOCK RETAINING WALLS, SEE SHEETS C12 FOR DETAILS. INSTALL 4-FOOT CHAINLINK FENCE ON TOP OF WALL. 8. INSTALL TYPE G MATTING OVER FINE COMPOST WITH INSTALL TYPE G MATTING OVER FINE COMPOST WITH PERMANENT SEED AND TACKIFIER INCORPORATED OVER A 2" THICK COMPOST EROSION BLANKET USING MEDIUM COMPOST WITH TACKIFIER. 9. INSTALL 2' THICK LAYER OF ENGINEERED STREAM BED INSTALL 2' THICK LAYER OF ENGINEERED STREAM BED MATERIAL. 10. PAVING LIMITS. PAVING LIMITS. 11. INSTALL 55 FEET OF STANDARD CURB INSTALL 55 FEET OF STANDARD CURB 12. REMOVE EXTG. PIPE AND INSTALL NEW 8" SANITARY SEWER REMOVE EXTG. PIPE AND INSTALL NEW 8" SANITARY SEWER PIPE. MATCH EXTG. SLOPE. CONNECT TO EXTG. PIPE WITH FERNCO STRONG BACK SHIELDED COUPLER. 13. INSTALL 15 FEET OF 8" STORM SEWER @ 0.66% SLOPE INSTALL 15 FEET OF 8" STORM SEWER @ 0.66% SLOPE 14. INSTALL 30 FEET OF 12" STORM SEWER @ 7.2% SLOPE INSTALL 30 FEET OF 12" STORM SEWER @ 7.2% SLOPE OUTFALL INV = 499.35

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STRUCTURAL BACKFILL PER GEOTECH REPORT

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PROTECT EXTG. SANITARY SEWER PIPE

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12" THICK, 1"-0 BASE ROCK

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PRECAST STRIP FOOTINGS

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CALL BEFORE YOU DIG ! ONE CALL: (800) 332-2344

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OAR 952-001-0010 THROUGH OAR 952-001-0090

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AutoCAD SHX Text ASPHALT MATTING WITH COMPOST BLANKET ENGINEERED STREAM BED MATERIAL STRUCTURAL BACKFILL BASE ROCK

1. REMOVE 40' OF EXTG. 6' DIAMETER CMP CULVERT. INSTALL 40 REMOVE 40' OF EXTG. 6' DIAMETER CMP CULVERT. INSTALL 40 FEET OF NEW 14' WIDE x 6' TALL, PRECAST CONCRETE THREE SIDED CULVERT WITH PRECAST FOOTINGS. 2. INSTALL CONTECH STORMFILTER SINGLE UNIT CONCRETE INSTALL CONTECH STORMFILTER SINGLE UNIT CONCRETE CATCHBASIN WITH TWO, 27" CARTRIDGES. RIM ELEV = 519.75 8" INV IN(N) = 515.00 8" INV OUT(SW) = 514.50 3. INSTALL 26 FEET OF 8" STORM PIPE @ 9.6% SLOPE. INSTALL 26 FEET OF 8" STORM PIPE @ 9.6% SLOPE. OUTFALL INVERT = 512.00 4. INSTALL 50 FEET OF STANDARD CURB INSTALL 50 FEET OF STANDARD CURB 5. INSTALL TYPE G-2 INLET GRATE ELEV = 519.90 INSTALL TYPE G-2 INLET GRATE ELEV = 519.90 8" INV OUT(S) = 515.25 6. INSTALL BLOCK RETAINING WALLS, SEE SHEETS SD3 FOR DETAILS. INSTALL BLOCK RETAINING WALLS, SEE SHEETS SD3 FOR DETAILS. INSTALL 4-FOOT CHAINLINK FENCE ON TOP OF WALL 7. INSTALL TYPE G MATTING OVER FINE COMPOST WITH PERMANENT INSTALL TYPE G MATTING OVER FINE COMPOST WITH PERMANENT SEED AND TACKIFIER INCORPORATED OVER A 2" THICK COMPOST EROSION BLANKET USING MEDIUM COMPOST WITH TACKIFIER. 8. INSTALL 2' THICK LAYER OF ENGINEERED STREAM BED MATERIAL INSTALL 2' THICK LAYER OF ENGINEERED STREAM BED MATERIAL 9. .PAVING LIMITS .PAVING LIMITS 10. INSTALL 50 FEET OF STANDARD CURB INSTALL 50 FEET OF STANDARD CURB 11. INSTALL 33 FEET OF 8" STORM SEWER @ 0.47% SLOPE INSTALL 33 FEET OF 8" STORM SEWER @ 0.47% SLOPE 12. EXISTING ROCK WALL TO REMAIN EXISTING ROCK WALL TO REMAIN 13. REMOVE EXTG. PIPE AND INSTALL NEW 8" SANITARY SEWER REMOVE EXTG. PIPE AND INSTALL NEW 8" SANITARY SEWER PIPE. MATCH EXTG. SLOPE. CONNECT TO EXTG. PIPE WITH FERNCO STRONG BACK SHIELDED COUPLER. 14. CUT AND CAP EXISTING C-900 WATERLINE. INSTALL KEYWAY CUT AND CAP EXISTING C-900 WATERLINE. INSTALL KEYWAY THRUST BLOCK AT EACH CAPPED END. POUR CONCRETE PRIOR TO CUTTING AND ALLOW CONCRETE TO CURE BEFORE CUTTING PIPE. INSTALL 8" DUCTILE IRON WATERLINE AFTER CULVERT INSTALLATION. CONNECT TO EXISTING WATERLINE. 15. RECONNECT EXTG. SEWER LATERAL, MAINTAIN SERVICE RECONNECT EXTG. SEWER LATERAL, MAINTAIN SERVICE DURING CONSTRUCTION. MATCH EXISTING SIZE.

2026-04-09T13:19:54-0700
Erik D Ranger
2026-04-09T13:19:57-0700
Erik D Ranger
2026-04-09T13:20:00-0700
Erik D Ranger

File details come from the government source that posted it. Updated .