PROJECT AREA HIGHWAY 2 LEWIS AND CLARK CAVERNS ROAD LEWIS AND CLARK CAVERNS CAMPGROUND DRAWN BY: DATE: CHECKED BY: DATE: REVISED BY: DATE: APPROVED BY: DATE: APPROVED BY: DATE: SHEET: APPROVED BY: DATE: J. LARSON J. LARSON T1 28 ANTLER AVENUE CLANCY, MT 59634 406-443-6111 [email protected]ENGINEERING, LLC CIVIL LARSON J. LARSON LEWIS AND CLARK CAVERNS STATE PARK COMFORT STATION SEPTIC PROJECT NEAR CARDWELL, MONTANA FWP #7176303 SHEET INDEX PLANS FOR CONSTRUCTION OF: TITLE SHEET OVERALL SITE PLAN NOTES AND DETAILS COMFORT STATION PLAN COMFORT STATION TANK DETAILS COMFORT STATION PLAN AND PROFILE RV DUMP STATION PLAN RV DUMP STATION DETAILS RV SUMP STATION DETAILS (2) RV DUMP STATION TANK DETAILS WASTEWATER TREATMENT SITE PLAN TANK DETAILS TANK DETAILS (2) TREATMENT DETAILS DRAIN FIELD DETAILS ELECTRICAL DETAILS T1 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 E1 LEWIS AND CLARK CAVERNS STATE PARK PROJECT LOCATION MAP MARCH 30, 2021 PROJECT VICINITY MAP TITLE SHEET FWP #7176303 COMFORT STATION SEPTIC PROJECT LEWIS AND CLARK CAVERNS STATE PARK MARCH 30, 2021 MARCH 30, 2021 138
1. ALL WORK SHALL BE CONSTRUCTED IN ACCORDANCE WITH "MONTANA PUBLIC WORKS SPECIFICATIONS",
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SIXTH EDITION (MPW).
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2. BEFORE DIGGING, CALL 811 FOR LOCATION OF EXISTING UTILITIES. THE LOCATION OF UTILITIES SHOWN
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3. ALL DISTURBED AREAS AND AREAS DESIGNATED IN THE PLANS FOR SEEDING SHALL BE TOPSOILED,
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SEEDED, MULCHED, AND FERTILIZED (SEE MPW SEEDING SPECIFICATIONS). SALVAGED TOPSOIL SHALL BE
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SPREAD EVENLY OVER DISTURBED AREAS. SEED MIX SHALL BE AN APPROVED LAWN MIX OR NATIVE
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9. SIDEWALKS SHALL BE CROSS SLOPED AT A MAXIMUM OF 1.8%%% AND SHALL BE BROOM FINISH.
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8. CONCRETE SHALL BE M-4000 AS DEFINED BY MPW SPECIFICATION 03/310 STRUCTURAL CONCRETE.
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ON THE DRAWINGS ARE APPROXIMATE AND WERE DERIVED PRIMARILY FROM AS-BUILT DRAWINGS.
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THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE LOCATION OF PRIVATE UTILITIES WITHIN THE PROJECT
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AREA, NOT LOCATED BY UTILITY COMPANIES.
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11. CRUSHED TOP SURFACING FOR GRAVEL SURFACING SHALL MEET THE FOLLOWING SPECIFICATIONS
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SIEVE SIZE %%% PASSING
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3/4" SIEVE
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No. 4 SIEVE
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No. 10 SIEVE
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No. 200 SIEVE
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100%%%
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40-80%%%
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25-60%%%
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8-20%%%
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IN ADDITION, THE PORTION PASSING THE NO. 200 SIEVE CANNOT EXCEED 2/3 OF THE PORTION
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PASSING THE #40 SIEVE; THE MAXIMUM LIQUID LIMIT FOR THE MATERIAL PASSING THE NO. 40 SIEVE
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SHALL NOT EXCEED 35, WHILE THE PLASTICITY INDEX CAN VARY BETWEEN 3 AND 10; THE WEAR FACTOR
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SHALL NOT EXCEED 50%%% AT 500 REVOLUTIONS; AND AT LEAST 20%%% OF THE AGGREGATE RETAINED ON
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NO. 4 SIEVE SHALL HAVE A FRACTURED FACE.
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INCLUDING BINDER OR BLENDING MATERIAL:
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PLANT SPECIES LBS/ACRE
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WESTERN WHEATGRASS
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STREAMBANK WHEATGRASS
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HARD FESCUE
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SLENDER WHEATGRASS
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4.8 LBS
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3.2 LBS
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3.2 LBS
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2.4 LBS
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TOTALS
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16.0 LBS
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10. ALL REQUIRED COMPACTION TESTING SHALL BE PROVIDED BY AN INDEPENDENT TESTING FIRM AT
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LOCATION/MATERIAL # OF TESTS
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CRUSHED BASE COURSE (LOOP ROAD CROSSING)
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ASPHALT (LOOP ROAD CROSSING)
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SUBGRADE FOR GRAVEL SURFACING (3 LOCATIONS)
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1
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2
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2
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THE EXPENSE OF THE CONTRACTOR, COMPACTION TESTING FREQUENCIES ARE AS FOLLOWS:
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GREEN NEEDLEGRASS
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2.4 LBS
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4" CONCRETE SLAB
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RECOMPACT UPPER 6" OF SUBGRADE TO 95% OF DENSITY PER ASTM D-698
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%%USTANDARD SIDEWALK
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6" OF 3/4" CRUSHED BASE COURSE
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6. CRUSHED BASE COURSE SHALL BE 1" MINUS PER MPW SPECIFICATIONS.
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7. PLANT MIX SURFACING SHALL BE TYPE-B, WITH ASPHALT CEMENT PG 58-28.
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SUBGRADE (LOOP ROAD CROSSING)
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1
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1
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CRUSHED TOP SURFACING (3 LOCATIONS)
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12. SEPTIC TANKS, CONCRETE VAULTS AND DISTRIBUTION BOX CALLED FOR DEMOLITION SHALL BE PUMPED
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TO REMOVE ANY REMAINING WASTEWATER. THE TOP OF EACH STRUCTURE SHALL BE REMOVED AND
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SIDEWALLS BROKEN DOWN TO A MINIMUM DEPTH OF 30" BELOW GROUND SURFACE. THE PORTION
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OF THE STRUCTURE DEEPER THEN 30" BELOW GROUND SURFACE CAN BE REMOVED OR FILLED WITH
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COMPACTED SAND OR GRAVEL AT THE CONTRACTORS OPTION. IF LEFT IN PLACE SEVERAL HOLES WILL
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BE MADE IN THE BOTTOM OF THE STRUCTURE TO ALLOW DRAINAGE. ALL CONCRETE, PLASTIC, WOOD
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OR METAL DEBRIS SHALL BE DISPOSED OF IN A LICENSED LANDFILL.
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13. THE CONTRACTOR IS RESPONSIBLE FOR OBTAINING AND MEETING THE REQUIREMENTS OF A SWPPP PERMIT.
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NO SCALE
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1
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C3,C5,C6,C10
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6" OF 1 1/2" MINUS CRUSHED BASE COURSE
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3" ASPHALT SURFACING
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COMPACT UPPER 6" OF SUBGRADE TO 95% OF DENSITY PER ASTM D-698
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%%USTANDARD PAVEMENT
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PROPEX GEOTEX 601 NONWOVEN GEOTEXTILE OR APPROVED EQUAL
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6" OF 1 1/2" MINUS CRUSHED BASE COURSE
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3" CRUSHED TOP SURFACING
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COMPACT UPPER 6" OF SUBGRADE TO 95% OF DENSITY PER ASTM D-698
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%%UGRAVEL SURFACING
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PROPEX GEOTEX 601 NONWOVEN GEOTEXTILE OR APPROVED EQUAL
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4" FEMALE ADAPTER
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4" THREADED
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PLUG
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ABOVE BEND
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CEMENT ALL JOINTS
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4" PVC, SOLVENT
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24" DIA CONCRETE COLLAR
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4" SCH 40 PVC PIPE
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SPIGOT BEND
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4"-45 DEG BELL &
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GROUND SURFACE
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4" SCH 40 PVC PIPE
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45 DEG WYE
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INSET 0.5" BELOW ASPHALT
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CAST IRON CLEANOUT COVER
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NO SCALE
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2
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C3,C5,C6
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4. GRAVITY SEWER PIPING SHALL BE 4" SCHEDULE 40 PVC.
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5. PUMPING EFFLUENT PRESSURE PIPING SHALL BE 1-1/2" OR 2" SCHEDULE 40 PVC.
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NO SCALE
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3
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C1,C5,C6,C10
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NOTES: 1. THIS DETAIL APPLIES TO BOTH GRAVITY AND THIS DETAIL APPLIES TO BOTH GRAVITY AND PRESSURE PIPE. 2. MINIMUM TRENCH WIDTH IS 30". MINIMUM TRENCH WIDTH IS 30". 3. PIPE COVER MAY BE LESS THAN 4.0' NEAR PIPE COVER MAY BE LESS THAN 4.0' NEAR TREATMENT PODS AND RECIRCULATION TANK. 4. SET PIPE GRADES TO MAINTAIN DRAINAGE SET PIPE GRADES TO MAINTAIN DRAINAGE BETWEEN TANKS, TREATMENT UNITS, DRAIN FIELDS AND ZONE SELECTION VALVES AND RV DUMP STATION.
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12" MIN.
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12" MIN.
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12" MIN.
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12" MIN.
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MULTIPLE PIPE INSTALLATIONS WHERE INDICATED (TYP)
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SEWER PIPE
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4" MIN
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6" MIN
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TYPE 1 PIPE BEDDING
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SLOPE OR BENCH TRENCH SIDES AS REQUIRED BY OSHA REGULATIONS
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4.0' MIN PIPE COVER
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COMPACTED BACKFILL
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4" OF SALVAGED TOPSOIL
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REVEGETATE WITH NATIVE DRYLAND SEED MIX
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DRYLAND MIX AS APPROPRIATE TO RESTORE THE GRASS TO CURRENT CONDITION:
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14. MAINTAIN A MINIMUM OF 4.0-FEET OF COVER OVER ALL UNDERGROUND PIPING EXCEPT WHERE PROHIBITED
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BY THE ELEVATION OF EXISTING LINES OR PORTIONS OF THE TREATMENT PIPING THAT CONNECT TO
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TANK RISERS.
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DETECTABLE WARNING TAPE (TYP)
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18"
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15. CONDUCTORS AND CABLES BETWEEN CONTROL PANELS AND PUMPS, FLOATS, FLOWMETERS AND OTHER
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EQUIPMENT SHALL BE INSTALLED IN CONDUIT AS SPECIFIED FOR ELECTRICAL CONDUCTORS ON SHEET
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E1 OF THE DRAWINGS.
DRAWN BY: DATE:
CHECKED BY: DATE:
REVISED BY: DATE: APPROVED BY: DATE:
APPROVED BY: DATE: SHEE
T:
APPROVED BY: DATE:
J. LARSON
J. LARSON C3J. LARSON
COMFORT STATION PLAN
FWP #7176303COMFORT STATION SEPTIC PROJECTLEWIS AND CLARK CAVERNS STATE PARK
REMOVE AND REPLACE GRAVEL SURFACE DISTURBED BY CONSTRUCTION, SLOPE TO DRAIN SEE DETAIL
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1
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C2
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DEMOLISH EXISTING RV DUMP STATION. REMOVE AND DISPOSE OF ALL EQUIPMENT AND CONCRETE.
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CONNECT TO EXISTING RV DUMP STATION WATER SUPPLY LINE, LOCATION IS UNKNOWN. PROVIDE EXPLORATORY EXCAVATION TO EXCAVATE FROM EXISTING DUMP STATION TO LOCATE THE LINE.
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RV DUMP STATION SEPTIC TANK
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C9
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14
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RV DUMP STATION SECONDARY EQUALIZATION BASIN TANK
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C9
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16
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RV DUMP STATION EQUALIZATION TANK/PUMP VAULT
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C9
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15
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4.0'
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3.0'
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±15.0'
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4"S
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4"S
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4"S
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CO
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CO
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ABANDON EXISTING SEWER MANHOLE, SEE CONSTRUCTION NOTES ON SHEET C2
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ABANDON EXISTING UNDERGROUND SEWER VAULT, SEE CONSTRUCTION NOTES ON SHEET C2
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2"FM
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2"FM
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2"FM
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2"FM
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TYPICAL SECTIONS (GRAVEL SURFACING)
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C2
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1
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TYPICAL SECTIONS (ASPHALT)
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C2
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1
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4"S
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CO
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1-1/2"FM
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1-1/2"FM
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FLOWMETER VAULT
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C4
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7
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SEWER CLEANOUT (TYP)
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C2
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2
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16.0'
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CP1
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4"S
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4"S
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COM
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COM
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16.0'
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4"S
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SEWER PIPING TRENCH
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C2
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3
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25.0'R
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UGP
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UGP
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UGP
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UGP
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UGP
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UGP
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UGP
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EXISTING POLE MOUNTED LIGHT OUTLET TO BE REMOVED COMPLETE. REMOVE WIRE AND CONDUIT DOWN TO GROUND LEVEL AND CAP. FIELD VERIFY CONNECTION AT PANEL, REMOVE WIRING AND MARK BREAKER AS SPARE.
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1 inch = ft.
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0
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5
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20
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20
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10
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8
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C1
RV DUMP STATION
6" BOLLARD DETAIL
RV DUMP STATION SIGN
SECTION B-B
SECTION A-A
DRAWN BY: DATE:
CHECKED BY: DATE:
REVISED BY: DATE: APPROVED BY: DATE:
APPROVED BY: DATE: SHEE
T:
APPROVED BY: DATE:
J. LARSON
J. LARSON C7J. LARSON
RV DUMP STATION DETAILS
FWP #7176303COMFORT STATION SEPTIC PROJECTLEWIS AND CLARK CAVERNS STATE PARK
6" DIAMETER SCHEDULE 40 STEEL PIPE FILLED WITH CONCRETE, PROVIDE DOMED CEMENT WASH CAP, PAINT PIPE (2) COATS TRAFFIC YELLOW
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NO SCALE
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10
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C7
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3'-6"
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3'-6"
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RV DUMP STATION SLAB
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2'-0" DIAMETER
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TELESCOPING FOR EASY REPAIR
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2-1/2"x 36" LONG NON-PERFORATED SQUARE STEEL TUBING, SET 34" INTO CONCRETE
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6-0"
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RV DUMP STATION SLAB
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18" DIAMETER CONCRETE BASE
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3'-0"
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(MIN.)
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2 ALUMINUM SIGNS PROVIDED BY OWNER, FACE IN OPPOSITE DIRECTIONS. BOLT TO STEEL TUBE WITH 1/2" CADMIUM PLATED BOLTS, NUTS, AND WASHERS.
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2" MAX.
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FASTEN POST TO ANCHOR 5/16" (ASTM 325) CORNER BOLT, SET 1-1/2" ABOVE GROUND, INSERT BOLT HEAD OPPOSITE FROM SIDE OF EXPECTED IMPACT, INSERT DRIVE RIVET INTO OPPOSITE OF BOLT HEAD.
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M-4000 CONCRETE
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NO SCALE
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11
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C7
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16"
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2"x 2"x 0.188" SQUARE STEEL TUBE. PROVIDE WELDED WATERTIGHT CAP.
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1"W
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1"W
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1"W
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4"SS
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4"SS
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12"
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1/2" QUARTER ROUND, ALL THE WAY AROUND TOP EDGE OF CONCRETE SLAB
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EL. 4284.80 TOP OF SLAB
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1.5%
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1.0%
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1.5%
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1.0%
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1.5%
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1.0%
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0.30' VERTICAL OFFSET FROM TOP OF SLAB TO ADJACENT GRAVEL SURFACE ALL AROUND SLAB, EXCEPT FOR ADA RAMP
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EL. 4284.65 TOP OF SLAB
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EL. 4284.74 TOP OF SLAB
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EL. 4284.32 TOP OF SLAB
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EL. 4284.39 TOP OF SLAB
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EL. 4284.26 TOP OF SLAB
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EL. 4284.52 TOP OF SLAB
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EL. 4284.39 TOP OF SLAB
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EL. 4284.46 TOP OF SLAB
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EL. 4284.20 TOP OF SLAB
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EL. 4284.13 TOP OF SLAB
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EL. 4284.39 TOP OF SLAB
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A
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C7
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A
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C7
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2
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E1
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NO SCALE
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B
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C7
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GRAVEL SURFACING
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FOOT OPERATED SANITARY HATCH (TYP OF 2)
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4" SCH 80 PVC ADAPTER, SOCKET x MIPT
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4" SCH 80 PIPE
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18"
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EXPANSION JOINT MATERIAL
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6"
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12"
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12"
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4"
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0.30'
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#4 REBAR AT 18" ON CENTER, EACH WAY
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#4 REBAR AT 18" ON CENTER, EACH WAY
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9"
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3/4" COMPACTED CRUSHED BASE COURSE
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SOIL SEPARATION FABRIC
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NO SCALE
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A
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C7
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GRAVEL SURFACING
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12"
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0.30' (TYP)
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#4 REBAR AT 18" ON CENTER, EACH WAY
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3/4" COMPACTED CRUSHED BASE COURSE
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SOIL SEPARATION FABRIC
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9"
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1.0% CROSS SLOPE
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GRAVEL SURFACING
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1/2" QUARTER ROUND (TYP)
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9'-0"
WATER TOWER
POTABLEWATER
NON-POTABLEWATER
ROCK LINE DETAIL
DRAWN BY: DATE:
CHECKED BY: DATE:
REVISED BY: DATE: APPROVED BY: DATE:
APPROVED BY: DATE: SHEE
T:
APPROVED BY: DATE:
J. LARSON
J. LARSON C8J. LARSON
RV DUMP STATION DETAILS (2)
FWP #7176303COMFORT STATION SEPTIC PROJECTLEWIS AND CLARK CAVERNS STATE PARK
SECURE WITH STAINLESS STEEL CONCRETE ANCHORS PER MANUFACTURERS RECOMMENDATIONS
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RV DUMP STATION SLAB
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1" DR 7 HDPE
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2" PVC SLEEVE
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PROVIDE FITTINGS AND COUPLINGS AS NECESSARY TO CONNECT TO WATER TOWER PIPING
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POTABLE WATER TOWER BASE AND STEEL HOUSING TO BE POWDER COATED BLUE, NON-POTABLE WATER TOWER BASE AND STEEL HOUSING TO BE POWDER COATED FOREST GREEN
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2 ALUMINUM SIGNS FACING OPPOSITE DIRECTIONS. DRILL AND TAP STEEL HOUSING AND ATTACHED WITH STAINLESS STEEL BOLTS, PROVIDE POTABLE OR NON-POTABLE SIGNS AS APPROPRIATE. SEE ADJACENT SIGN DETAIL.
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12"
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9"
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12"
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9"
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SIGN DETAIL
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12
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C7
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9" MIN
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18" MIN 26" MAX
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18" MIN 28" MAX
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8.0'
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8.0'
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EXTEND AT 8.0' SPACING TO END OF ROCK LINE
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TOPSOIL, EXISTING IN PLACE OR IMPORT IN AREAS TO BE LANDSCAPED
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3.0' DIAMETER ROCK (TYP), ROCK GEOLOGY SHALL NOT BE SUBJECT TO EROSION OR FRACTURE, ALL ROCKS SHALL BE OF SIMILAR COLOR AND TEXTURE
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NOTE: SET CENTER OF ROCK LNIE 2.0' FROM EDGE OF GRAVEL ROAD OR PARKING SURFACING
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NO SCALE
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13
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C10
RV DUMP STATION SEPTIC TANK
RV DUMP STATION EQUALIZATION TANK/PUMP VAULT
RV DUMP STATION SECONDARY EQUALIZATION TANK
DRAWN BY: DATE:
CHECKED BY: DATE:
REVISED BY: DATE: APPROVED BY: DATE:
APPROVED BY: DATE: SHEE
T:
APPROVED BY: DATE:
J. LARSON
J. LARSON C9J. LARSON
RV DUMP STATION TANK DETAILS
FWP #7176303COMFORT STATION SEPTIC PROJECTLEWIS AND CLARK CAVERNS STATE PARK
INFILTRATOR SYSTEMS, INC. QUICK4 STANDARD CHAMBER OR APPROVED EQUAL
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4" OF SALVAGED TOPSOIL
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REVEGETATE WITH NATIVE DRYLAND SEED MIX
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EARTH BACKFILL
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1-1/2" SCHEDULE 40 PVC PRESSURE DOSING PIPE
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3'-0"
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34"
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12"
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TRENCH WALL
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SLOPE GROUND AWAY FROM RISER
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24" DIA. PVC ACCESS RISER WITH FIBERGLASS LID, ATTACH LID WITH SS SCREWS (TYP), FULLY INSULATE VAULT AND LID
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2" SCH 40 PVC 90° BEND(TYP OF 6)
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30"
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4" OF 3/4" MINUS WASHED ROCK
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2" SCH 40 PVC 90° BEND
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1-1/2" SCH 40 PVC 90° BEND
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1-1/2" SCH 40 PVC PIPE
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2" SCH 40 PVC PIPE (TYP)
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24" DIA. PVC ACCESS RISER WITH FIBERGLASS LID, ATTACH LID WITH SS SCREWS (TYP)
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TO ZONE
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FROM TREATMENT
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ORENCO V6606A AUTOMATIC DISTRIBUTING ASSEMBLY VALVE OR APPROVED EQUAL
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FROM TREATMENT
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1-1/2" SCH 40 PVC UNIONS (TYP OF 6)
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1-1/2" SCH 40 PVC UNION
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LONG SWEEP ELBOW
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THREADED PLUG
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METAL T-POST, 5.0' LONG, 1.25 LBS/FT
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24" TO 36"
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TO ZONE
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TO ZONE
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TO ZONE
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TO ZONE
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TO ZONE
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2"x 1-1/2" SCH 40 PVC REDUCER (TYP )
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TRENCH DEPTH
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NOTE: TRENCH BED SHALL BE LEVEL
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NO SCALE
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30
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C1
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NO SCALE
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29
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C14
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NO SCALE
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31
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C14
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ORENCO V6606A AUTOMATIC DISTRIBUTING ASSEMBLY VALVE OR APPROVED EQUAL
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68.0' (TYP)
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65.0' (TYP)
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2.0'
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4.0' TRENCH SEPARATION (TYP)
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5.0' ORIFICE SPACING (TYP)
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2" SCH. 40 PVC (TYP)
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(TYP)
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1.5' (TYP)
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2.0' (TYP)
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1-1/2" SCH. 40 PVC (TYP)
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FROM ZONE SELECTION VALVE
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DRAIN FIELD CLEANOUT, (TYP OF 4 PER ZONE)
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INFILTRATION CHAMBER SYSTEM END CAP (TYP)
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3/16" ORIFICE (TYP)
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NO SCALE
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28
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C1
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36"x 4.O' INFILTRATION CHAMBER (TYP OF 68 PER ZONE)
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2" PVC GATE VALVE, THROTTLE TO ADJUST FOR ELEVATION DIFFERENCE IN DRAIN FIELD LATERAL ELEVATIONS, BURY IN PLACE, ORENCO HIGH-PRESSURE GATE VALVES OR EQUAL (TYP OF 3 PER ZONE)
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31
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C14
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36" INFILTRATION CHAMBER TRENCH (TYP)
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29
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C14
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NOTE: : THE EASTERN MOST DRAIN FIELD ZONE IS A MIRROR IMAGE OF THIS DETAIL.