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HomeMy WebLinkAboutRegional Stormwater Facility - 2021LEGEND RIGHT-OF-WAY / PROPERTY LINE TEMPORARY EASEMENT PERMANENT EASEMENT EXISTING MINOR CONTOUR EXISTING MAJOR CONTOUR 001-094-006 PACIFIC FUNDING 5+006+007+008+00 9+ 0 0 10 + 0 0 11 + 0 0 12 + 0 0 13+00 14+00 PC: 12+44.32 PC: 7+39.42 PT: 5+35.06 PT: 12+61.57PT: 8+22.46N2° 02' 36"E204.36'S5 9 ° 0 0 ' 4 5 " E 42 1 . 8 6 ' Δ=44°56'25" R=45.00' L=35.30'Δ=21°58'10" R=45.00' L=17.25' Δ=118°56'39" R=40.00' L=83.04' PR O P O S E D PE R M A N E N T 3 0 ' DR A I N A G E EA S E M E N T ( T Y P . ) TE M P O R A R Y C O N S T R U C T I O N 10' E A S E M E N T TE M P O R A R Y C O N S T R U C T I O N 10' E A S E M E N T TE M P O R A R Y C O N S T R U C T I O N 3 0 ' EA S E M E N T M I L L R O A D 001-162-017 CITY OF PORT TOWNSEND 4+125+00BP: 4+1 2 . 0 4 PC: 4+99.77 P T : 4 + 4 7 . 6 7 0+001+002+003+004+004+12BP: 0+00.00 PI: 0+44.66 PC: 3+38.97 PT: 3+ 6 1 . 8 2 EP: 4+1 2 . 0 4 N46° 59' 01"E 52.09' Δ=34°01'29" R=60.00' L=35.63' N12° 50' 30"E 50.21'N7° 38' 47"W44.66'N0° 45' 04"W294.31'Δ=16°22'13" R=80.00' L=22.86' 0+00.00 BEGIN 10' GRAVEL MAINTENENCE ROAD N: 407059.33 E: 1157247.93 CENTERLINE N HORIZONTAL SCALE 0 40 80 1" = 40 FEET 20 1 2 3 4 TEL www.ahbl.comWEBTELwww.ahbl.comWEBTELwww.ahbl.comWEB 2215 North 30th Street, Suite 300 Tacoma, WA 98403 253.383.2422TEL www.ahbl.comWEB TACOMA SEATTLE SPOKANE TRI-CITIES Know what's below. before you dig.Call R 253.383.2572 FAX PORT TOWNSEND REGIONAL STORMWATER FACILITY SECTIONS 9 & 16, TOWNSHIP 30N, RANGE 1W, W.M., JEFFERSON COUNTY, WA CERB CONTRACT NO. 515-790AO-065 PORT TOWNSEND REGIONAL STORMWATER FACILITY CITY OF PORT TOWNSEND 250 MADISON STREET PORT TOWNSEND, WA 98368 2160137 BID SET 03/19/2020 CHANGE ORDER 01 12/17/2020 CHANGE ORDER 04 04/21/2021 DO SK DG 17 WORK ORDER # 8028 CHANGE ORDER 02 03/19/2021 DATE: March 19, 2021 FILENAME: Q:\2016\2160137\10_CIV\CAD\2160137-SH-HZ CONTROL- 22X34.dwg HORIZONTAL CONTROL AND ACCESS PLAN 2 C0.02 MATCHLINE SEE RIGHT MATCHLINE SEE LEFT MATCHLINE SEE C0.03 S1° 47' 38"W405.97'15+00 16+00 17+00 18+00 19+00 20+0 0 20+3 5 EP: 20+35.25PI: 15+90.55PI: 19+59.58PI: 18+75.88S80° 58' 55 " E 328.98' S87° 57' 21"E 83.70' N60° 19' 49"E 75.67' S76° 24 ' 1 3 " E 285.32' 20+35.25 END 10' GRAVEL MAINTENENCE ROAD N: 407496.54 E: 1158519.39 CENTERLINEEXISTING CITY DRAINAGE EASEMENTCONTRACTOR STAGING/STOCKPILE AREA CONTRACTOR ACCESS FROM EVANS VISTA. RESTORE EVANS VISTA CURB, GUTTER, SIDEWALK, AND ASPHALT PAVEMENT TO PRE-CONSTRUCTION CONDITION AT PROJECT COMPLETION. SIDEWALK SOUTH OF EVANS VISTA TO BE REMOVED PER SHEET C1.01. RESTORE EX. GRAVEL ROAD AT PROJECT COMPLETION W/MIN. 4" GRAVEL CSTC TEMP O R A R Y C O N S T R U C T I O N 30' EA S E M E N T TEMPO R A R Y C O N S T R U C T I O N 10' EAS E M E N T N HORIZONTAL SCALE 0 40 80 1" = 40 FEET 20 1 2 3 4 TEL www.ahbl.comWEBTELwww.ahbl.comWEBTELwww.ahbl.comWEB 2215 North 30th Street, Suite 300 Tacoma, WA 98403 253.383.2422TEL www.ahbl.comWEB TACOMA SEATTLE SPOKANE TRI-CITIES Know what's below. before you dig.Call R 253.383.2572 FAX PORT TOWNSEND REGIONAL STORMWATER FACILITY SECTIONS 9 & 16, TOWNSHIP 30N, RANGE 1W, W.M., JEFFERSON COUNTY, WA CERB CONTRACT NO. 515-790AO-065 PORT TOWNSEND REGIONAL STORMWATER FACILITY CITY OF PORT TOWNSEND 250 MADISON STREET PORT TOWNSEND, WA 98368 2160137 BID SET 03/19/2020 CHANGE ORDER 01 12/17/2020 CHANGE ORDER 04 04/21/2021 DO SK DG 17 WORK ORDER # 8028 CHANGE ORDER 02 03/19/2021 DATE: March 19, 2021 FILENAME: Q:\2016\2160137\10_CIV\CAD\2160137-SH-HZ CONTROL- 22X34.dwg HORIZONTAL CONTROL AND ACCESS PLAN 3 C0.03MATCHLINE SEE C0.02 LEGEND RIGHT-OF-WAY / PROPERTY LINE TEMPORARY EASEMENT PERMANENT EASEMENT CLEARING / PROJECT LIMITS SILT FENCE EXISTING MINOR CONTOUR EXISTING MAJOR CONTOUR CONSTRUCTION ENTRANCE 2 C1.10 1 C1.10 CL SF CE 001-094-006 PACIFIC FUNDING SF CL M I L L R O A D 001-162-017 CITY OF PORT TOWNSEND CL CE SF CLEARING NOTE CLEARING/PROJECT LIMITS AND LOCATION OF SILT FENCE SHOWN IS APPROXIMATE. EXTENT OF CLEARING /PROJECT LIMITS AND EXACT LOCATION OF SILT FENCE TO BE DETERMINED BY CONTRACTOR BASED ON PROPOSED CONSTRUCTION METHODS, BUT SHALL NOT CROSS THE TEMPORARY EASEMENTS DEPICTED HEREON WITHOUT WRITTEN APPROVAL FROM THE ENGINEER. PAYMENT FOR CLEARING AND GRUBBING SHALL NOT EXCEED BID QUANTITY. N HORIZONTAL SCALE 0 40 80 1" = 40 FEET 20 1 2 3 4 TEL www.ahbl.comWEBTELwww.ahbl.comWEBTELwww.ahbl.comWEB 2215 North 30th Street, Suite 300 Tacoma, WA 98403 253.383.2422TEL www.ahbl.comWEB TACOMA SEATTLE SPOKANE TRI-CITIES Know what's below. before you dig.Call R 253.383.2572 FAX PORT TOWNSEND REGIONAL STORMWATER FACILITY SECTIONS 9 & 16, TOWNSHIP 30N, RANGE 1W, W.M., JEFFERSON COUNTY, WA CERB CONTRACT NO. 515-790AO-065 PORT TOWNSEND REGIONAL STORMWATER FACILITY CITY OF PORT TOWNSEND 250 MADISON STREET PORT TOWNSEND, WA 98368 2160137 BID SET 03/19/2020 CHANGE ORDER 01 12/17/2020 CHANGE ORDER 04 04/21/2021 DO SK DG 17 WORK ORDER # 8028 CHANGE ORDER 02 03/19/2021 DATE: March 19, 2021 FILENAME: Q:\2016\2160137\10_CIV\CAD\2160137-SH-TESC-DEMO- 22X34.dwg TESC AND DEMOLITION PLAN 4 C1.00 MATCHLINE SEE RIGHT MATCHLINE SEE LEFT MATCHLINE SEE C1.01 S1° 47' 38"W405.97'SF REMOVE BROKEN CONCRETE SIDEWALK SOUTH OF EVANS VISTA LEGEND RIGHT-OF-WAY / PROPERTY LINE TEMPORARY EASEMENT PERMANENT EASEMENT CLEARING / PROJECT LIMITS SILT FENCE EXISTING MINOR CONTOUR EXISTING MAJOR CONTOUR CONSTRUCTION ENTRANCE 2 C1.10 1 C1.10 CL SF CE CLEARING NOTE CLEARING/PROJECT LIMITS AND LOCATION OF SILT FENCE SHOWN IS APPROXIMATE. EXTENT OF CLEARING /PROJECT LIMITS AND EXACT LOCATION OF SILT FENCE TO BE DETERMINED BY CONTRACTOR BASED ON PROPOSED CONSTRUCTION METHODS, BUT SHALL NOT CROSS THE TEMPORARY EASEMENTS DEPICTED HEREON WITHOUT WRITTEN APPROVAL FROM THE ENGINEER. PAYMENT FOR CLEARING AND GRUBBING SHALL NOT EXCEED BID QUANTITY. N HORIZONTAL SCALE 0 40 80 1" = 40 FEET 20 1 2 3 4 TEL www.ahbl.comWEBTELwww.ahbl.comWEBTELwww.ahbl.comWEB 2215 North 30th Street, Suite 300 Tacoma, WA 98403 253.383.2422TEL www.ahbl.comWEB TACOMA SEATTLE SPOKANE TRI-CITIES Know what's below. before you dig.Call R 253.383.2572 FAX PORT TOWNSEND REGIONAL STORMWATER FACILITY SECTIONS 9 & 16, TOWNSHIP 30N, RANGE 1W, W.M., JEFFERSON COUNTY, WA CERB CONTRACT NO. 515-790AO-065 PORT TOWNSEND REGIONAL STORMWATER FACILITY CITY OF PORT TOWNSEND 250 MADISON STREET PORT TOWNSEND, WA 98368 2160137 BID SET 03/19/2020 CHANGE ORDER 01 12/17/2020 CHANGE ORDER 04 04/21/2021 DO SK DG 17 WORK ORDER # 8028 CHANGE ORDER 02 03/19/2021 DATE: March 19, 2021 FILENAME: Q:\2016\2160137\10_CIV\CAD\2160137-SH-TESC-DEMO- 22X34.dwg TESC AND DEMOLITION PLAN 5 C1.01MATCHLINE SEE C1.00 1 2 3 4 TEL www.ahbl.comWEBTELwww.ahbl.comWEBTELwww.ahbl.comWEB 2215 North 30th Street, Suite 300 Tacoma, WA 98403 253.383.2422TEL www.ahbl.comWEB TACOMA SEATTLE SPOKANE TRI-CITIES Know what's below. before you dig.Call R 253.383.2572 FAX PORT TOWNSEND REGIONAL STORMWATER FACILITY SECTIONS 9 & 16, TOWNSHIP 30N, RANGE 1W, W.M., JEFFERSON COUNTY, WA CERB CONTRACT NO. 515-790AO-065 PORT TOWNSEND REGIONAL STORMWATER FACILITY CITY OF PORT TOWNSEND 250 MADISON STREET PORT TOWNSEND, WA 98368 2160137 BID SET 03/19/2020 CHANGE ORDER 01 12/17/2020 CHANGE ORDER 04 04/21/2021 DO SK DG 17 WORK ORDER # 8028 CHANGE ORDER 02 03/19/2021 DATE: April 21, 2021 FILENAME: Q:\2016\2160137\10_CIV\CAD\2160137-SH-DETAILS- 22X34.dwg C1.10 6 TESC AND DEMOLITION DETAILS AND NOTES 2 NOT TO SCALE CONSTRUCTION ENTRANCE 1.CONTRACTOR TO PRESERVE AND PROTECT ALL EXISTING UTILITES ON PRIVATE PROPERTY AND IN PUBLIC RIGHTS-OF-WAY. 2.WHERE POSSIBLE NATURAL VEGETATION WILL BE MAINTAINED FOR SILT CONTROL. 3.AS CONSTRUCTION PROGRESSES AND SEASONAL CONDITIONS DICTATE, THE EROSION CONTROL FACILITIES SHALL BE MAINTAINED AND/OR ALTERED AS REQUIRED BY THE CESCL TO ENSURE CONTINUING EROSION/SEDIMENTATION CONTROL. 4.TEMPORARY SILTATION PONDS AND ALL TEMPORARY SILTATION CONTROLS SHALL BE MAINTAINED IN A SATISFACTORY CONDITION UNTIL SUCH TIME THAT CLEARING AND/OR CONSTRUCTION IS COMPLETED, PERMANENT DRAINAGE FACILITIES ARE OPERATIONAL, AND THE POTENTIAL FOR EROSION HAS PASSED. 5.PUBLIC RIGHTS-OF-WAY SHALL BE KEPT CLEAN. TRACKING OF MUD AND DEBRIS FROM THE SITE WILL NOT BE ALLOWED. FAILURE TO COMPLY WITH THIS CONDITION WILL RESULT IN ALL WORK ON THE SITE BEING STOPPED. TESC & DEMOLITION NOTES CONSTRUCTION SEQUENCE 1.INSTALL TREE PROTECTION FENCING IN ACCORDANCE WITH APPROVED PLANS. 2.STAKE AND FLAG CLEARING AND CONSTRUCTION LIMITS. BY CITY SURVEYOR. 3.CONSTRUCT CONSTRUCTION ENTRANCE. 4.CONSTRUCT ALL TEMPORARY EROSION CONTROL BMP's ACCORDING TO THE PLAN. 5.INSPECTION NUMBER 1: EROSION CONTROL, MLA 18-8056 INSPECTION. 6.DEMOLISH EXISTING SITE FEATURES INDICATED FOR REMOVAL. 7.ROUGH GRADE SITE, ALL GRADING SHALL BE DONE IN CONFORMANCE WITH THE PLAN AND THE GEOTECHNICAL ENGINEER'S RECOMMENDATIONS. 8.APPLY EROSION CONTROL MULCH AND SEEDING, PLASTIC COVERING, OR EQUAL. ALL DISTURBED LAND AREAS THAT WILL BE LEFT FOR 30 DAYS OR MORE DURING THE PERIOD OF MAY 1 TO OCTOBER 1 SHALL BE IMMEDIATELY SEEDED. IN ADDITION TO SEEDING, SLOPES OF 15% OR GREATER WILL BE MULCHED WITH 2 TONS OF STRAW PER ACRE, OR WITH AN APPROVED EQUAL. DURING THE REST OF THE YEAR, TEMPORARY SOIL STABILIZATION MUST BE APPLIED IMMEDIATELY TO DISTURBED AREAS THAT WILL BE LEFT EXPOSED FOR 7 DAYS OR MORE, AND IMMEDIATELY TO SLOPES GREATER THAN 15% THAT WILL BE LEFT EXPOSED FOR 2 DAYS OR MORE. 9.CONSTRUCT UTILITIES AND STORM DRAINAGE FEATURES. INSTALL STORM DRAIN INLET PROTECTION FOR ALL CATCH BASINS W/GRATED LIDS SUBJECT TO ON-SITE AND OFF-SITE RUNOFF. 10.RELOCATE EROSION CONTROL MEASURES OR INSTALL NEW MEASURES SO THAT AS SITE CONDITIONS CHANGE, THE EROSION AND SEDIMENT CONTROL IS ALWAYS IN ACCORDANCE WITH COUNTY SWPPP MINIMUM REQUIREMENTS. 11.FINAL GRADE SITE, CONSTRUCT FINAL SURFACING TREATMENTS. ENSURE SURFACE WATER IS POSITIVELY DRAINED TOWARDS PROPOSED STORMWATER CONTROL FACILITIES. 12.INSPECTION NUMBER 2: COMPLETION OF EXCAVATION, FILL, AND EARTHWORK, MLA 18-8056 INSPECTION. 13.REMOVE THE REMAINING TEMPORARY EROSION CONTROL ITEMS ONCE SITE HAS BEEN STABILIZED AND UPON APPROVAL. 14.COMPLETE FINAL LANDSCAPING AS APPLICABLE. 1 NOT TO SCALE SILT FENCE PROPOSED GRADE EXISTING GRADE 135 140 145 150 155 160 165 170 175 180 135 140 145 150 155 160 165 170 175 180 FG 147.264+50FG 149.24FG 151.225+00FG 153.20FG 155.185+50FG 157.16FG 159.146+00FG 161.12FG 163.106+50FG 165.08FG 167.067+00FG 169.04FG 171.027+50FG 173.00240 LF 1 8 " C P E P @ 7 . 9 4 % CB3, TYPE 1L, W/SOLID LID STA 5+22.91, 0.42' R RIM: 155.00 IE: 152.00 18" (SW) IE: 152.00 18" (N) CONTRACTOR TO VERIFY EXACT DEPTH, SIZE, TYPE, AND LOCATION OF EX. 6" DIA. AC WATER MAIN. 118 LF 1 8 " C P E P @ 7 . 9 4 % STA: 7+62.98, 2.97' L IE: 171.08 18" (NE) IE: 171.08 18" (S) RIM: 174.08 CB4, TYPE 1L, W/SOLID LID 7.92% CB4, TYPE 1L, W/SOLID LID CB3, TYPE 1L, W/SOLID LID 4+12 118 LF 18" CPEP @ 7.85 %240 LF 18" CPEP @ 7.94%4+12 5+006+007+001 5 0 155 160 165 170 1 7 5 180146 147 148 1 4 9 15 1 1 5 2 1 5 3 1 5 4 156 157 158 159 161 162 163 164 166 167 168 169 171 172 173 174 1 7 6 178179181CONTRACTOR TO VERIFY EXACT DEPTH, SIZE, TYPE, AND LOCATION OF EX. 6" DIA. AC WATER MAIN. IF CONFLICT WITH PROPOSED STORM PIPE EXISTS, REPLACE EX. WATER MAIN WITH DI PIPE FROM EX. VALVE TO 20' WEST OF CROSSING. LEGEND RIGHT-OF-WAY / PROPERTY LINE CENTERLINE TEMPORARY EASEMENT PERMANENT EASEMENT PROPOSED MINOR CONTOUR PROPOSED MAJOR CONTOUR CHAINLINK FENCE GRAVEL MAINTENANCE ROAD SPILLWAY RIPRAP CB TYPE 1L CB TYPE 2 STORM PIPE 123 123 1 C3.12 2 C3.11 8 C3.10 1 C3.10 N HORIZONTAL SCALE 0 20 40 1" = 20 FEET 10 MATCHLINE SEE C2.00 MATCHLINE SEE C2.02 1 C3.12 PATH STA:4+12- 7+70 HORIZONTAL 1" = 20' VERTICAL 1" = 5' 1 2 3 4 TEL www.ahbl.comWEBTELwww.ahbl.comWEBTELwww.ahbl.comWEB 2215 North 30th Street, Suite 300 Tacoma, WA 98403 253.383.2422TEL www.ahbl.comWEB TACOMA SEATTLE SPOKANE TRI-CITIES Know what's below. before you dig.Call R 253.383.2572 FAX PORT TOWNSEND REGIONAL STORMWATER FACILITY SECTIONS 9 & 16, TOWNSHIP 30N, RANGE 1W, W.M., JEFFERSON COUNTY, WA CERB CONTRACT NO. 515-790AO-065 PORT TOWNSEND REGIONAL STORMWATER FACILITY CITY OF PORT TOWNSEND 250 MADISON STREET PORT TOWNSEND, WA 98368 2160137 BID SET 03/19/2020 CHANGE ORDER 01 12/17/2020 CHANGE ORDER 04 04/21/2021 DO SK DG 17 WORK ORDER # 8028 CHANGE ORDER 02 03/19/2021 C2.01 8 GRADING, STORM, AND SURFACING PLAN DATE: April 21, 2021 FILENAME: Q:\2016\2160137\10_CIV\CAD\2160137-SH-SITE- 22x34.dwg C4.00 165 170 175 180 185 190 195 200 205 210 165 170 175 180 185 190 195 200 205 210 FG 174.988+00FG 176.96FG 178.948+50FG 180.92FG 182.909+00FG 184.88FG 186.869+50FG 188.84FG 190.8210+00FG 192.80FG 194.7810+50FG 196.76FG 198.7444 LF 1 8 " C P E P @ 7 . 7 3 % CB5, TYPE 1L, W/SOLID LID STA: 8+06 3.40' L RIM: 177.47 IE IN: 174.47 (18"SE) IE OUT: 174.47 (18"SW) PROPOSED GRADE EXISTING GRADE 433 LF 18 " C P E P @ 5 . 7 1 % 7.92% 433 LF 18" C P E P @ 4 . 6 7 % 001-094-006 PACIFIC FUNDING CB5, TYPE 1L, W/SOLID LID CB4, TYPE 1L, W/SOLID LID 44 LF 18" CPEP @ 7.73%240 LF 18" CPEP @ 7.94%6+007+008+00 9+ 0 0 10 + 0 0 160 165 170 1 7 5 180185190195159 161 162 163 164 166 167 168 169 171 172 173 174 1 7 6 177178179181182183184186187188189191192193194196197198199433 LF 18" CPEP @ 5.71% LEGEND RIGHT-OF-WAY / PROPERTY LINE CENTERLINE TEMPORARY EASEMENT PERMANENT EASEMENT PROPOSED MINOR CONTOUR PROPOSED MAJOR CONTOUR CHAINLINK FENCE GRAVEL MAINTENANCE ROAD SPILLWAY RIPRAP CB TYPE 1L CB TYPE 2 STORM PIPE 123 123 1 C3.12 2 C3.11 8 C3.10 1 C3.10 N HORIZONTAL SCALE 0 20 40 1" = 20 FEET 10 MATCHLINE SEE SHEET C2.03MATCHLINE SEE C2.01 1 C3.12 PATH STA:7+70 - 11+00 HORIZONTAL 1" = 20' VERTICAL 1" = 5' 1 2 3 4 TEL www.ahbl.comWEBTELwww.ahbl.comWEBTELwww.ahbl.comWEB 2215 North 30th Street, Suite 300 Tacoma, WA 98403 253.383.2422TEL www.ahbl.comWEB TACOMA SEATTLE SPOKANE TRI-CITIES Know what's below. before you dig.Call R 253.383.2572 FAX PORT TOWNSEND REGIONAL STORMWATER FACILITY SECTIONS 9 & 16, TOWNSHIP 30N, RANGE 1W, W.M., JEFFERSON COUNTY, WA CERB CONTRACT NO. 515-790AO-065 PORT TOWNSEND REGIONAL STORMWATER FACILITY CITY OF PORT TOWNSEND 250 MADISON STREET PORT TOWNSEND, WA 98368 2160137 BID SET 03/19/2020 CHANGE ORDER 01 12/17/2020 CHANGE ORDER 04 04/21/2021 DO SK DG 17 WORK ORDER # 8028 CHANGE ORDER 02 03/19/2021 DATE: April 21, 2021 FILENAME: Q:\2016\2160137\10_CIV\CAD\2160137-SH-SITE- 22x34.dwg C2.02 9 GRADING, STORM, AND SURFACING PLAN 1 4.67% CB6, TYPE 2 48", W/SOLID LID EXISTIN G C O N T O U R S F R O M L I D A R I N F O R M A T I O N 503 LF 18 " C P E P @ 0 . 4 0 % 11 + 0 0 12 + 0 0 13+00 14+00 15+00 16+00200205210201202203204206207208209211212215220225225214216217218219221222 2222232232242242262262272272282282292297.32 % 7.92% 185 190 195 200 205 210 215 220 225 230 185 190 195 200 205 210 215 220 225 230 FG 202.7011+50FG 204.68FG 206.6712+00FG 208.65FG 210.6312+50FG 212.61FG 214.5913+00FG 216.57FG 218.5513+50FG 220.53FG 222.5114+00FG 224.49FG 226.4714+50FG 228.29FG 229.2315+00FG 229.23FG 228.2715+50FG 226.52FG 224.69503 LF 18" CPEP @ 0.40% STA: 12+37.48, 1.73' R IE: 199.20 18" (E) IE: 199.20 18" (NW) RIM: 211.60 CB6, TYPE 2 48", W/SOLID LID PROPOSED GRADE EXISTING GRADE 100' VC PVI: 231.25 PVI STA: 14+85.39 K: 6.31 BVCS: 14+35.41BVCE: 227.29EVCS: 15+35.38EVCE: 227.29HI PT: 14+85.38ELEV: 229.27503 LF 18" CPEP @ 1.00% NEW IE: 194.68 NEW IE: 194.68 LEGEND RIGHT-OF-WAY / PROPERTY LINE CENTERLINE TEMPORARY EASEMENT PERMANENT EASEMENT PROPOSED MINOR CONTOUR PROPOSED MAJOR CONTOUR CHAINLINK FENCE GRAVEL MAINTENANCE ROAD SPILLWAY RIPRAP CB TYPE 1L CB TYPE 2 STORM PIPE 123 123 1 C3.12 2 C3.11 8 C3.10 1 C3.10 N HORIZONTAL SCALE 0 20 40 1" = 20 FEET 10 MATCHLINE SEE SHEET C2.02MATCHLINE SEE SHEET C2.04PATH STA:11+00 - 16+00 HORIZONTAL 1" = 20' VERTICAL 1" = 5' 1 2 3 4 TEL www.ahbl.comWEBTELwww.ahbl.comWEBTELwww.ahbl.comWEB 2215 North 30th Street, Suite 300 Tacoma, WA 98403 253.383.2422TEL www.ahbl.comWEB TACOMA SEATTLE SPOKANE TRI-CITIES Know what's below. before you dig.Call R 253.383.2572 FAX PORT TOWNSEND REGIONAL STORMWATER FACILITY SECTIONS 9 & 16, TOWNSHIP 30N, RANGE 1W, W.M., JEFFERSON COUNTY, WA CERB CONTRACT NO. 515-790AO-065 PORT TOWNSEND REGIONAL STORMWATER FACILITY CITY OF PORT TOWNSEND 250 MADISON STREET PORT TOWNSEND, WA 98368 2160137 BID SET 03/19/2020 CHANGE ORDER 01 12/17/2020 CHANGE ORDER 04 04/21/2021 DO SK DG 17 WORK ORDER # 8028 CHANGE ORDER 02 03/19/2021 DATE: April 21, 2021 FILENAME: Q:\2016\2160137\10_CIV\CAD\2160137-SH-SITE- 22x34.dwg C2.03 10 GRADING, STORM, AND SURFACING PLAN 1 C3.12 Landslide Hazard Area Boundary (40 Percent or Greater Slopes) 25-Foot Landslide Hazard Area Buffer 11 1 1.00% CB8, TYPE 2 48", W/SOLID LID CB10, 54" CONTROL STRUCTURE RIM: 207.50 IE: 202.20 18" (NE) IE: 202.20 18" (SW) POND OUTLET, TRASH RACK IE: 202.20 18" (SW) 16 LF 18" CPEP @ 0.00% 1 2 3 21021 0 2 1 0 206 207 207208 208 2 0 8 20 8 20 9 209 209 2092 1 1212 1 C3.11 108 LF 1 8 " C P E P @ 0 . 4 0 % 20+3 5 16+00 17+00 18+00 19+00 20+0 0 1 5 'R10'15'1 5 '20'CB9, TYPE 1L, W/SOLID LID141 LF 18" 18" CPEP @ 0.40%205205 205210210215220 204 204204 204 206206 206 207 207 207208208209209211212213214216217218219221222223224 2 C3.12 PROPOSED GRADE EXISTING GRADE 195 200 205 210 215 220 225 195 200 205 210 215 220 225 FG 221.0316+50FG 219.21FG 217.3817+00FG 215.55FG 213.7217+50FG 211.89FG 210.0618+00FG 208.23FG 206.4018+50FG 204.58FG 203.9919+00FG 203.99FG 203.9919+50FG 204.00FG 204.0020+00FG 204.00FG 204.00CB8, TYPE 2 48", W/SOLID LID STA 17+40.74, 3.24' L RIM: 212.60 IE: 201.21 18" (E) IE: 201.21 18" (W) 108 LF 18" CPEP @ 0.40% STA: 18+48.55, 4.31' L IE: 201.64 18" (NE) IE: 201.64 18" (W) RIM: 204.72 CB9, TYPE 1L, W/SOLID LID 7.32% PVI: 203.99 PVI STA: 18+57.90 K: 2.78 20' VC BVCS: 18+47.71BVCE: 204.74EVCS: 18+68.09EVCE: 203.99LOW PT: 18+68.08ELEV: 203.99108 LF 18" CPEP @ 1.00% NEW IE: 200.79 NEW IE: 200.79 NEW IE: 199.71 NEW IE: 199.71 17+00FG 204.00FG 207.8417+50FG 210.25FG 211.9118+00FG 214.00FG 211.2918+50FG 204.95CB10, 54" CONTROL STRUCTURE STA: 19+09 137.34' L RIM: 207.50 IE: 202.20 18" (NE) IE: 202.20 18" (SW) EXISTING GRADE STA: 18+48.55, 4.31' L IE: 201.64 18" (NE) IE: 201.64 18" (W) RIM: 204.72 CB9, TYPE 1L, W/SOLID LID 141 LF 18" CPEP @ 0.40% PROPOSED GRADE 16 LF 18" CPEP @ 0.00% 141 LF 18" CPEP @ 1.00% NEW IE: 200.79 NEW IE: 200.79 LEGEND RIGHT-OF-WAY / PROPERTY LINE CENTERLINE TEMPORARY EASEMENT PERMANENT EASEMENT PROPOSED MINOR CONTOUR PROPOSED MAJOR CONTOUR CHAINLINK FENCE GRAVEL MAINTENANCE ROAD SPILLWAY RIPRAP CB TYPE 1L CB TYPE 2 123 123 1 C3.12 2 C3.11 8 C3.10 1 C3.10 N HORIZONTAL SCALE 0 20 40 1" = 20 FEET 10MATCHLINE SEESHEET C2.031 HORIZONTAL 1" = 20 VERTICAL 1" = 5" CB9 TO NEW CONTROL STRUCTURE IN EXISTING POND 1 C3.12 KEY NOTES REVISE EXISTING CONTROL STRUCTURE. REPLACE EXISTING RISER: NEW RISER SHALL HAVE WATERTIGHT PLATE AT BOTTOM AND HAVE NO ORIFICES OR NOTCHES. SET RISER TOP ELEVATION TO 207.95. ADJUST RIM ELEVATION OF STRUCTURE TO ACCOMODATE RISER: ±210.60. REGRADE EXISTING POND AS SHOWN. NEW OVERFLOW SPILLWAY ELEVATION = 208.50 15' WIDE ACCESS TO CONTROL STRUCTURE, MIN. 4" DEPTH CSTC 1 2 3 PATH STA:16+00 - 20+47 HORIZONTAL 1" = 20' VERTICAL 1" = 5' 1 2 3 4 TEL www.ahbl.comWEBTELwww.ahbl.comWEBTELwww.ahbl.comWEB 2215 North 30th Street, Suite 300 Tacoma, WA 98403 253.383.2422TEL www.ahbl.comWEB TACOMA SEATTLE SPOKANE TRI-CITIES Know what's below. before you dig.Call R 253.383.2572 FAX PORT TOWNSEND REGIONAL STORMWATER FACILITY SECTIONS 9 & 16, TOWNSHIP 30N, RANGE 1W, W.M., JEFFERSON COUNTY, WA CERB CONTRACT NO. 515-790AO-065 PORT TOWNSEND REGIONAL STORMWATER FACILITY CITY OF PORT TOWNSEND 250 MADISON STREET PORT TOWNSEND, WA 98368 2160137 BID SET 03/19/2020 CHANGE ORDER 01 12/17/2020 CHANGE ORDER 04 04/21/2021 DO SK DG 17 WORK ORDER # 8028 CHANGE ORDER 02 03/19/2021 DATE: April 21, 2021 FILENAME: Q:\2016\2160137\10_CIV\CAD\2160137-SH-SITE- 22x34.dwg C2.04 11 GRADING, STORM, AND SURFACING PLAN 210.00 210.00 3 1 1 1 1 1 1 11 1.00% 207.80 12' 12" MIN. THICKNESS ROCK PROTECTION 3:1 3:1 0.4' .5' MIN 3'3' 127.5 127.1 EMERGENCY OVERFLOW WATER SURFACE OVERFLOW WATER SURFACE 1'FILTER FABRIC LINER UNDER ROCKQUARRY SPALLS 21'8'ELEV: 113.00 PLAN VIEW SECTION VIEW1'ELEV: 115.003: 1 3:11'FILTER FABRIC LINER UNDER ROCK QUARRY SPALLS ±30'±45'ELEV: 119.00 PLAN VIEW SECTION VIEW NOTES: 1.ROCK LINING SHALL BE QUARRY SPALLS WITH GRADATION AS FOLLOWS: 1.1.PASSING 8-INCH SQUARE SIEVE: 100% 1.2.PASSING 3-INCH SQUARE SIEVE: 40 TO 60% MAXIMUM 1.3.PASSING 0.75-INCH SQUARE SIEVE: 0 TO 10% MAXIMUM 1'ELEV: 122.00 3: 1 3:118" INL E T 18" INLET PIPE BEDDING PER WSDOT 9-03.12(3) FINISH SURFACE PER PLAN FLEXIBLE (CPEP, CMP, PVC) RIGID (D.I., CONC.) 1.5 X I.D. + 18" 24" MIN. PIPE AS SPECIFIED ON PLAN OR SPECS. 6" MIN.DIA.6"8" TYP BACKFILL WITH BANK RUN GRAVEL FOR TRENCH BACKFILL PER WSDOT 9-03.19 OR SUITABLE NATIVE MATERIAL 0.15 x DIA. OR 4" MIN. 128.0 128.0 2:1 1 2 3 4 TEL www.ahbl.comWEBTELwww.ahbl.comWEBTELwww.ahbl.comWEB 2215 North 30th Street, Suite 300 Tacoma, WA 98403 253.383.2422TEL www.ahbl.comWEB TACOMA SEATTLE SPOKANE TRI-CITIES Know what's below. before you dig.Call R 253.383.2572 FAX PORT TOWNSEND REGIONAL STORMWATER FACILITY SECTIONS 9 & 16, TOWNSHIP 30N, RANGE 1W, W.M., JEFFERSON COUNTY, WA CERB CONTRACT NO. 515-790AO-065 PORT TOWNSEND REGIONAL STORMWATER FACILITY CITY OF PORT TOWNSEND 250 MADISON STREET PORT TOWNSEND, WA 98368 2160137 BID SET 03/19/2020 CHANGE ORDER 01 12/17/2020 CHANGE ORDER 04 04/21/2021 DO SK DG 17 WORK ORDER # 8028 CHANGE ORDER 02 03/19/2021 DATE: April 21, 2021 FILENAME: Q:\2016\2160137\10_CIV\CAD\2160137-SH-DETAILS- 22X34.dwg C3.10 14 STORM DRAINAGE DETAILS 2 NOT TO SCALE EMERGENCY OVERFLOW SPILLWAY 3 NOT TO SCALE PIPE BEDDING AND TRENCH BACKFILL 5 NOT TO SCALE ROCK SUMP OUTFALL 6 NOT TO SCALE POND INLET WITH STILLING BASIN12" CPEP15" CPEP15" CPEP 12" CPEP 7 NOT TO SCALE CB TYPE 1 8 NOT TO SCALE CB TYPE 2 2.0% 6" QUARRY SPALLS (2- TO 4-INCH) 2" CRUSHED SURFACING 12' GEOTEXTILE FABRIC NOTE MAXIMUM LONGITUDINAL SLOPE = 12%. 4 NOT TO SCALE POND ACCESS RAMP 1 NOT TO SCALE CB TYPE 1L JAILHOUSE GRATE DETAIL NOTES: 1.FRAME AND LADDER OR STEPS OFFSET SO THAT: A. CLEANOUT GATE IS VISIBLE FROM TOP. B. CLIMB DOWN SPACE IS CLEAR OF RISER AND CLEANOUT GATE. MAX. W.S. 2 ' M IN . 18"Ø O U T FRAME & LADDER OR STEPS OFFSET. SEE NOTE 1. ROUND SOLID COVER WITH LOCKING BOLTS. 6" MIN. RIM ELEV 210.00 OVERFLOW ELEV 207.50 18" RISER STEPS OR LADDER ELEV 207.50 PROVIDE VERTICAL BARS IN FRAME @ 4" O.C. ELEV = 207.50 1 8 0 ° O P E N I NG6"PLAN SECTION PIPE SUPPORT(S): 3" x 0.090" ELEV = 207.50 POLYPROPYLENE-COATED STEEL STEPS OR LADDER. 54" DIA.2.0'2.0'6"MIN.18" RISER 18" SD 6" IE = 202.20 18" SD RESTRICTOR PLATE W/ ONE 3.0" ORIFICE ELEV = 200.20 18" MAX.1 2 3 4 TEL www.ahbl.comWEBTELwww.ahbl.comWEBTELwww.ahbl.comWEB 2215 North 30th Street, Suite 300 Tacoma, WA 98403 253.383.2422TEL www.ahbl.comWEB TACOMA SEATTLE SPOKANE TRI-CITIES Know what's below. before you dig.Call R 253.383.2572 FAX PORT TOWNSEND REGIONAL STORMWATER FACILITY SECTIONS 9 & 16, TOWNSHIP 30N, RANGE 1W, W.M., JEFFERSON COUNTY, WA CERB CONTRACT NO. 515-790AO-065 PORT TOWNSEND REGIONAL STORMWATER FACILITY CITY OF PORT TOWNSEND 250 MADISON STREET PORT TOWNSEND, WA 98368 2160137 BID SET 03/19/2020 CHANGE ORDER 01 12/17/2020 CHANGE ORDER 04 04/21/2021 DO SK DG 17 WORK ORDER # 8028 CHANGE ORDER 02 03/19/2021 DATE: April 21, 2021 FILENAME: Q:\2016\2160137\10_CIV\CAD\2160137-SH-DETAILS- 22X34.dwg C3.11 15 STORM DRAINAGE DETAILS 1 NOT TO SCALE CONTROL STRUCTURE WITH JAILHOUSE GRATE 3 NOT TO SCALE CHAIN LINK GATE 2 NOT TO SCALE CHAIN LINK FENCE18"Ø IN RESTRICTOR ELBOW ORIFICE DIA. = 2.0" ELEV. = 205.20 8.00" 8.00" 207.60 207.60 207.60 207.60 3 1 2 3 4 TEL www.ahbl.comWEBTELwww.ahbl.comWEBTELwww.ahbl.comWEB 2215 North 30th Street, Suite 300 Tacoma, WA 98403 253.383.2422TEL www.ahbl.comWEB TACOMA SEATTLE SPOKANE TRI-CITIES Know what's below. before you dig.Call R 253.383.2572 FAX PORT TOWNSEND REGIONAL STORMWATER FACILITY SECTIONS 9 & 16, TOWNSHIP 30N, RANGE 1W, W.M., JEFFERSON COUNTY, WA CERB CONTRACT NO. 515-790AO-065 PORT TOWNSEND REGIONAL STORMWATER FACILITY CITY OF PORT TOWNSEND 250 MADISON STREET PORT TOWNSEND, WA 98368 2160137 BID SET 03/19/2020 CHANGE ORDER 01 12/17/2020 CHANGE ORDER 04 04/21/2021 DO SK DG 17 WORK ORDER # 8028 CHANGE ORDER 02 03/19/2021 2.0% 95% COMPACTED SUBBASE 4" GRAVEL CRUSHED SURFACING TOP COURSE 10' CSTC 2:1 DATE: April 21, 2021 FILENAME: Q:\2016\2160137\10_CIV\CAD\2160137-SH-DETAILS- 22X34.dwg C3.12 16 STORM DRAINAGE DETAILS 1 NOT TO SCALE MAINTENANCE ROAD SECTION 2:1 1' BENCH 1' BENCH 0.75" DIA. END VIEW SIDE VIEW 0.75" DIA. FRAME 3" MAX. SPACING O.5" GALV. OR NON-CORROSIVE NUTS & BOLTS ENDS TO BE WELDED TO 0.75" DIA. FRAME 0.25" x 2" x 5" STRIPS 4 EA. 0.25" x 2" x 5" STRIPS WELD TO FRAME - SPACE UNIFORMLY 2 NOT TO SCALE TRASH RACK 3 NOT TO SCALE OVERFLOW STRUCTURE 4 NOT TO SCALE FLOW DISPERSAL TRENCH 5 NOT TO SCALE PERMANENT SURFACE WATER POND SIGN NOTES: 1.ALL STEEL PARTS MUST BE GALVANIZED AND ASPHALT COATED (TREATMENT 1 OR BETTER). TRASH RACKS SHALL BE INSTALLED AT ALL OPEN ENDS OF STORM DRAINAGE PIPE 12" DIA. AND GREATER. LARRY SCOTT MEMORIAL TR 6. 0 0 ' B E R M CB2, TYPE 1L, W/SOLID LID RIM: 145.74 IE: 142.74 18" (NE) IE: 142.74 18" (S) OVERFLOW STRUCTURE WITH DEBRIS BARRIER, 48" TYPE 2 CB12 RIM: 125.92 IE: 121.19 12" (SE) FLOW DISPERSAL TRENCH, CB TYPE 1 RIM: 114.13 IE: 111.78 15" (NW) IE: 111.78 6" (NE) POND ACCESS RAMP CHAINLINK FENCE 3 C3.11 PERMANENT SURFACE WATER CONTROL POND SIGN POND INLET WITH STILLING BASIN IE: 118.00 18" (NE) CHAINLINK GATE 2 C3.11 ROCK SUMP OUTFALL IE: 113.00 12" (NW) EMERGENCY OVERFLOW SPILLWAY 2 C3.10 4+12 0+00 1+00 2+00 3+00 4+00 1 1 8 L F 1 8 " C P E P @ 7 . 8 5 % 70 LF 18" CPEP @ 10.56% 81 LF 1 2 " C P E P @ 1 0. 0 5 % 36 LF 1 5 " P V C @ 3. 3 6 %50 LF 6 " PVC @ 0 .00% 4+12 3 C3.12 5 C3.12 5 C3.10 4 C3.12 RESTORE TRAIL TO PRE-CONSTRUCTION CONDITION OR BETTER MILL R O A D 20 LF 8" CPEP CULVERT, INSTALL TRASH RACK ON EACH END CB1, TYPE 1L, W/SOLID LID RIM: 138.45 IE: 135.35 (N) IE: 135.35 (SW) 2 C3.12 4 C3.10 121122125 121 122 123 124 126 126 127 127 128 128 12012513013514014511611711811912112212312412612712812913113213 3 13413613713813914114214314414653 LF 18" CPEP @ 32.73% IE: 113.00 15" (SE) 2 0+00 1+00 2+00 3+003+060+001+002+003+003+18STA:0+03.51, 0.00'MILL ROAD001-162-017CITY OF PORT TOWNSEND130135140128129131132133134136137138139125121122123124126127FG: 146.23 10.00% HORIZONTAL SCALE 0 20 40 1" = 20 FEET 10 1 2 3 4 TEL www.ahbl.comWEBTELwww.ahbl.comWEBTELwww.ahbl.comWEB 2215 North 30th Street, Suite 300 Tacoma, WA 98403 253.383.2422TEL www.ahbl.comWEB TACOMA SEATTLE SPOKANE TRI-CITIES Know what's below. before you dig.Call R 253.383.2572 FAX PORT TOWNSEND REGIONAL STORMWATER FACILITY SECTIONS 9 & 16, TOWNSHIP 30N, RANGE 1W, W.M., JEFFERSON COUNTY, WA CERB CONTRACT NO. 515-790AO-065 PORT TOWNSEND REGIONAL STORMWATER FACILITY CITY OF PORT TOWNSEND 250 MADISON STREET PORT TOWNSEND, WA 98368 2160137 BID SET 03/19/2020 CHANGE ORDER 01 12/17/2020 CHANGE ORDER 04 04/21/2021 DO SK DG 17 WORK ORDER # 8028 CHANGE ORDER 02 03/19/2021 DATE: March 19, 2021 FILENAME: Q:\2016\2160137\10_CIV\CAD\2160137-SH-SITE-ALT 22x34.dwg C4.00 17 REVISED STORM INFILTRATION PLANN3 C4.01 POND NOTES NOT USED OVEREXCAVATION AND REPLACEMENT. EXCAVATE TO 3' BELOW THE LIMITS OF EXISTING SILT SOILS. REPLACE 11,500 SF OVEREXCAVATED AREA WITH CLEAN, FREE-DRAINING, PERMEABLE BALLAST OR QUARRY SPALLS. REFER TO TRENCH OVEREXCAVATION DETAIL. 1 2 B C4.01 A C4.01 6 C3.10 APPROXIMATE TOP OF PERMEABLE BALLAST REPLACEMENT AREA WITH 1 2:1 SIDESLOPES. ELEV. 121.0 BOTTOM OF PERMEABLE BALLAST REPLACEMENT AREA 11,500 SF, 3' BELOW EX. SILT LAYER. ELEV. VARIES 127.00 2 95 100 105 110 115 120 125 130 135 140 95 100 105 110 115 120 125 130 135 140 PROPOSED GRADE EXISTING GRADE 3 : 12:13:1DESIGN WATER SURFACE ELEVATION 127.0 TOP OF POND ELEVATION 128.0 ⅊ CHAINLINK FENCE CHAIN LINK FENCE APPROX. LOCATION OF TOP OF EXISTING SILT LAYER BOTTOM OF POND ELEVATION 121.0 2 C3.11 2 C3.11 FG 137.870+50FG 127.10FG 121.001+00FG 121.00FG 121.001+50FG 121.00FG 121.002+00FG 121.00FG 121.002+50FG 121.00FG 127.713+00FG 135.002:1APPROX. LOCATION OF BOTTOM OF EXISTING SILT LAYER 2 103 105 110 115 120 125 130 135 140 103 105 110 115 120 125 130 135 140 PROPOSED GRADE EXISTING GRADE2:1 MAX. 3 : 1 3:16' BERM PROVIDE KEYED POND BERM EMBANKMENT. BERM MATERIAL SHALL CONTAIN A MINIMUM OF 20% SILT AND CLAY, A MAXIMUM OF 60% SILT WITH NOMINAL GRAVEL AND COBBLE CONTENT. COMPACT TO 95% MAX. DENSITY (TYP.) MIN 50% BERM CROSS - SECTIONAL WIDTH CHAINLINK FENCE CHAIN LINK FENCE DESIGN WATER SURFACE ELEVATION 127.0 TOP OF POND ELEVATION 128.0 BOTTOM OF POND ELEVATION 121.0 2 2 C3.11 2 C3.11 2:1 MAX.FG 124.730+50FG 127.35FG 121.421+00FG 121.00FG 121.001+50FG 121.00FG 121.002+00FG 121.00FG 121.002+50FG 129.23FGAPPROX. LOCATION OF TOP OF EXISTING SILT LAYER APPROX. LOCATION OF BOTTOM OF EXISTING SILT LAYER N HORIZONTAL SCALE 0 20 40 1" = 20 FEET 10 1 2 3 4 TEL www.ahbl.comWEBTELwww.ahbl.comWEBTELwww.ahbl.comWEB 2215 North 30th Street, Suite 300 Tacoma, WA 98403 253.383.2422TEL www.ahbl.comWEB TACOMA SEATTLE SPOKANE TRI-CITIES Know what's below. before you dig.Call R 253.383.2572 FAX PORT TOWNSEND REGIONAL STORMWATER FACILITY SECTIONS 9 & 16, TOWNSHIP 30N, RANGE 1W, W.M., JEFFERSON COUNTY, WA CERB CONTRACT NO. 515-790AO-065 PORT TOWNSEND REGIONAL STORMWATER FACILITY CITY OF PORT TOWNSEND 250 MADISON STREET PORT TOWNSEND, WA 98368 2160137 BID SET 03/19/2020 CHANGE ORDER 01 12/17/2020 CHANGE ORDER 04 04/21/2021 DO SK DG 17 WORK ORDER # 8028 CHANGE ORDER 02 03/19/2021 DATE: March 19, 2021 FILENAME: Q:\2016\2160137\10_CIV\CAD\2160137-SH-SITE-ALT 22x34.dwg C4.01 ---- REVISED POND PROFILES RESTRICTIVE SILT LAYER (RSL) ADVANCE OUTWASH SAND EXTEND OVEREXCAVATION 3FT BELOW RSL GEOTEXTILE FOR UNDERGROUND DRAINAGE (CLASS B, MODERATE SURVIVABILITY) PER WSDOT STANDARD SPECIFICATION 9-33.2(1) - TABLES 1 AND 2 QUARRY SPALLS OR PERMEABLE BALLAST PER WSDOT STANDARD SPECIFICATION 9-03.9(2) - PERMEABLE BALLAST 9-13.1(5) - QUARRY SPALLS PLACE GEOTEXTILE 1 FT. BELOW GROUND SURFACE 3 NOT TO SCALE OVEREXCAVATION AND REPLACEMENT 1 1" = 20' HORIZONTAL 1" = 5' VERTICAL SECTION A-A 2 1" = 20' HORIZONTAL 1" = 5' VERTICAL SECTION B-B 3 C4.01 POND NOTES NOT USED OVEREXCAVATION AND REPLACEMENT. EXCAVATE TO 3' BELOW THE LIMITS OF EXISTING SILT SOILS. REPLACE OVEREXCAVATED AREA WITH CLEAN, FREE-DRAINING, PERMEABLE BALLAST OR QUARRY SPALLS. REFER TO TRENCH OVEREXCAVATION DETAIL. 1 2