PDX 2026-501 (102) C6.08.pdf
PDF 521 KB Posted
- Solicitation number
- 147231
- Issued by
- Multnomah County, Oregon
About this file
This is a Grading Plan drawing for the Portland International Airport North Runway Rehabilitation project in Oregon, specifically detailing Runway 10L-28R from Station 291+50 to Station 299+00. The drawing, prepared by HNTB Corporation and dated October 2026, provides detailed grading and drainage specifications for the runway rehabilitation work. The document includes finish paving contours at 1-foot and 0.2-foot intervals, existing contours, paving limits, taxiway free object area boundaries, and proposed surface flow directions. Key specifications require the contractor to remove a minimum of 4 inches of soil between project grading limits and outer edges of existing paved sections, with additional material removal directed by the Port to eliminate deeper roots or other objectionable organic material. The top 2 inches of disturbed infield grading must consist of topsoil meeting specification T-905, and finish grade includes a 1.5-inch pavement drop at the edge of shoulder to infield grading.
The drawing serves as a technical specification document for construction contractors and includes comprehensive drainage infrastructure details such as catch basins, manholes, slotted manholes, cleanouts, existing storm pipes, and existing underdrains. The plan incorporates runway and taxiway lighting locations and provides a scale of 1 inch equals 50 feet for reference. The document was prepared by Garrett P. Stevens, a registered professional engineer in Oregon (License No. 89696PE, expiration 06/30/28), with design by Gene Tupper, drawn by G. Stevens, checked by C. Aasland, and reviewed by B. Foster. This grading plan is one component of the larger North Runway Rehabilitation project at Portland International Airport and is part of drawing set PDX 2026-501, Sheet C6.08.
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Text version
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PORTLAND OFFICE
5500 MEADOWS RD., #250
LAKE OSWEGO, OR 97035
503.419.2130 OFFICE
503.639.2710 FAX
N
SCALE:
RUNWAY 10L-28R STA 291+50 TO STA 299+00
1" = 50'1
RUNWAY 10L-28R
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SEPT EMBER 0 8 , 2
GARRETT P. STEVENS
EXP: 06/30/28
ENGINEER
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GIS
TERED PROFESSIONAL
OREGON
89696PE
10/5/2026
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DESIGN NUMBER PROJECT NUMBER
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4:26:32 PM CAASLAND c:\users\caasland\dc\accdocs\hntb corporation\88598 - pdx north runway rehab\project files\shared cad\sheets - civil\grading plans.dwg
DISC. SHT. NO.
DRAWING SCALE IS RED8&ED �0� WHEN SHEET SIZE IS 11" x 17"
DESIGN BY
DRAWN BY
CHECKED BY
DATE
SHEET NO.
SUBMITTED BY
DRAWING NO.
TYPE:
1/
4" 1/
2" 1"
1/
4" 1/
2" 1"
DATE BY REVISION APPDATE BY REVISION APP ##
IF ELECTRONIC SIGNATURE IS BROKEN OR MISSING - THIS IS NOT A LEGAL DRAWING
PORTLAND INTERNATIONAL AIRPORT
NORTH RUNWAY REHABILITATION
GRADING PLAN
RUNWAY 10L-28R STA 291+50 TO STA 299+00
GENE TUPPER
G. STEVENS
C. AASLAND
B. FOSTER
OCTOBER 2026
102 CD
PDX 2026-501 C6.082024D011 102981
KEY PLAN
SCALE : N.T.S.
N
SCALE: IN FEET
10050'0' 25' 150'
NOTES:
1. GRADING BASED ON 10L-28R CENTERLINE
ALIGNMENT. SEE SHEETS C1.01 THROUGH C1.11 FOR
ALIGNMENT GEOMETRY AND PAVING LIMITS.
2. AS A MINIMUM, CONTRACTOR SHALL REMOVE THE
UPPER 4" OF SOIL BETWEEN THE PROJECT GRADING
LIMITS AND THE OUTER EDGES OF THE EXISTING
PAVED SECTIONS. ADDITIONAL MATERIAL SHALL BE
REMOVED, WHEN DIRECTED BY THE PORT, TO
ELIMINATE DEEPER ROOTS OR OTHER
OBJECTIONABLE ORGANIC MATERIAL. STRIPPING OF
THIS MATERIAL SHALL BE CONSIDERED UNSUITABLE
EXCAVATION.
3. THE TOP 2" OF DISTURBED, INFIELD GRADING SHALL
CONSIST OF TOPSOIL MEETING THE REQUIREMENTS
OF T-905.
4. FINISH GRADE INCLUDES 1-1/2" PAVEMENT DROP AT
EDGE OF SHOULDER TO INFIELD GRADING.
FINISH PAVING CONTOUR MAJOR
(SHOWN @ 1' INTERVALS)
FINISH PAVING CONTOUR MINOR
(SHOWN @ 0.2' INTERVALS)
FINISH GRADING CONTOUR MAJOR
(SHOWN @ 1' INTERVALS)
FINISH GRADING CONTOUR MINOR
(SHOWN @ 0.2' INTERVALS)
EXISTING CONTOUR MAJOR
EXISTING CONTOUR MINOR
PAVING LIMITS
TAXIWAY FREE OBJECT AREA (TOFA)
DISTURBANCE BOUNDARY
CATCH BASIN
MANHOLE
SLOTTED MANHOLE
CLEANOUT
EXISTING STORM PIPE
EXISTING UNDERDRAIN
RUNWAY/TAXIWAY LIGHTS
FLOW DIRECTION (PROPOSED SURFACE)
LEGEND:
26.0'
26.0'
26.2'
26.0'
26.2'
-1.50% co co
TOFA
S EPT EMBER 0 8 , 2 0 2 0
GARRETT P. STEVENS
EXP: 06/30/28
ENGINEER
RE
GIS
TERED PROFESSIONAL
OREGON
89696PE
MULTICORELINK:GRADING PLANS-GRAD PLAN 7
MULTICORELINK:GRADING PLANS-GRAD PLAN 9
| Sheets and Views |
| GRADING PLANS-GRAD PLAN 8 |
| 2026-10-06T16:18:49-0700 | |
| DIGITALLY SIGNED | |
| Garrett P Stevens |
File details come from the government source that posted it. Updated .