Addendum 1 Attachment C Sheet C1 Revised 11122025~1.pdf
PDF 1 MB Posted
- Attached to
- ITB South Slough Entrance Improvement Project
- Solicitation number
- S-DASOBO-00014838
- Issued by
- Coos County, Oregon
About this file
Site Plan Summary: South Slough Entrance Improvements Project
This document is a Site Plan (Sheet C1) prepared by CivilWest Engineering for the Oregon Department of State Lands' South Slough Entrance Improvements Project, a federally-funded infrastructure initiative at 61907 Seven Devils Road, Charleston, Oregon. The plan illustrates comprehensive site development improvements including the construction of a new paved parking area with Level II EV charger stations, new light poles with security cameras, a visitor center turn-around drive and bus parking area, gravel surfacing with 4-inch and 12-inch depths in designated areas, new split-rail cedar fencing, stormwater management infrastructure (swales, outfall piping, and energy dissipators), a new painted crosswalk, and Seven Devils Road widening with a new left turn lane. The site plan also depicts existing features to be protected including pump houses, wells, mailboxes, fences, power poles, and utility lines. The project design date is November 13, 2025, with the plan scale at 1-inch equals 80 feet, and the file designation indicates revision updates as of November 22, 2025.
The site plan includes critical construction directives requiring contractors to contact "One Call" for utility locates prior to excavation, maintain all existing features in place or restore them to pre-construction condition if disturbed, assume full responsibility for damage caused by construction operations, ensure all traveled walkways remain safe and useable at the end of each work day, and maintain continuous site access throughout construction. The plan references multiple detail sheets (C11, C12, C17, D1, D3, and D4) for additional specifications and incorporates clear vision triangle requirements per Coos County Code. The project engineer is registered Professional Engineer Sean Loyd (PE #89522, renewal date December 31, 2026), and the engineering firm, CivilWest, is located in Coos Bay, Oregon.
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Text version
E
T
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E
NO
PAR
KIN
G
N1 SITE PLAN
C1
61869 SEVEN DEVILS RD
MAP NO: 26S14W26
OWNER: LEE, CHARLES F
SE
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N D
EV
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S R
D
EX.
PUMP
HOUSE
EX.
WELL
PARKING LOT
LIGHT POLE
WITH SECURITY
CAMERA, TYP.
LEVEL II EV
CHARGER
STATIONS
NEW LIGHT
POLES
TYP EX.
LIGHT
POLE
NEW LIT
BOLLARD,
TYP.
EXISTING ELECTRICAL
AND COMMUNICATIONS
LINES
NEW STORMWATER
SWALE
SEE
GRAVEL
PATHWAY
5' WIDTH
SEE
NEW PAINTED
CROSSWALK
STRIPING, TYP
NEW GRAVEL
PARKING SPACES
NEW GATE,
ENTRANCE SIGN,
& SECURITY
CAMERA
SEVEN DEVILS
ROAD WIDENING &
NEW LEFT TURN
LANE
SEE
NEW PAVED
PARKING AREA
STORMWATER
OUTFALL PIPING
AND ENERGY
DISSIPATOR
STORMWATER ENERGY
DISSIPATOR
CULVERT WITH
ENERGY
DISSIPATOR
C11
NEW SPLIT
RAIL CEDAR
FENCING
C17
NEW ASPHALT
SECTION
SEE
D1
D1
SHEET NOTES:
1. CONTRACTOR SHALL CONTACT "ONE CALL" FOR UTILITY LOCATES PRIOR TO THE START OF ANY
EXCAVATION.
2. EXISTING MAILBOXES, FENCES, POWER POLES, GUY WIRES, AND OTHER MISCELLANEOUS FEATURES MAY BE IN CLOSE PROXIMITY TO THE IMPROVEMENTS SHOWN IN THESE DRAWINGS. CONTRACTOR
SHALL PROTECT THESE FEATURES IN PLACE (UNLESS NOTED OTHERWISE) OR REPAIR TO
PRE-CONSTRUCTION CONDITION IF DISTURBED DURING CONSTRUCTION.
3. CONTRACTOR SHALL BE RESPONSIBLE FOR ANY AND ALL DAMAGE DUE TO THE CONTRACTOR'S
OPERATIONS.
4. ALL TRAVELED WALKWAYS SHALL BE SAFE AND USEABLE AT THE END OF EACH WORK DAY AS
DIRECTED BY THE ENGINEER.
5. ACCESS SHALL BE MAINTAINED AT ALL TIMES
NEW ASPHALT
SECTION
SEE
D1
CLEAR VISION
TRIANGLE PER COOS
COUNTY CODE
NEW
GRAVEL
SURFACING
4" DEPTH
10' WIDTH
GRAVEL PULL
OUT AREA
12" DEPTH
NEW STORMWATER
SWALES
SEE
C12
VISITOR CENTER
TURN AROUND
DRIVE AND BUS
PARKING
D at e Sh ee t N o.
D
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SECURITY
CAMERA
NEW WHEEL
STOPS, TYP
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D3
NEW
GRAVEL
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10.0'
5.0'
TYP
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6.0'
AutoCAD SHX Text
%%U PLAN SCALE
AutoCAD SHX Text
AutoCAD SHX Text
AutoCAD SHX Text 1"=80'
AutoCAD SHX Text
AutoCAD SHX Text
AutoCAD SHX Text
AutoCAD SHX Text
FINAL PLANS
| Sheets and Views |
| C1 |
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