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HomeMy WebLinkAboutPD2005-74 CALL BEFORE YOU DIG DIGGERS HOTLINE OF NEBRASKA 1-800-331-5666 NOTE: CONTRACTOR SHALL DROP CURB AT INTERSECTION FOR HANDICAP RAMPS TO BE LOCATED IN FIELD BY ENGINEER APPROXIMATELY 7,095.88 CUBIC YARDS OF FILL, FROM BORROW PIT, WILL BE NEEDED FOR THE CONSTRUCTION OF THIS PROJECT. 10,068 CUBIC YARDS TOTAL EMBANKMENT MINUS 2,972 CUBIC YARDS OF EXCAVATION ON SITE. UTILITY WORK TO BE DONE BY HASTINGS UTILITIES. NOTES: The embankment and subgrade shall be adjusted to conform to the lines and grades on the plans in accordance with Section 202, 204 and 301 of the 1985 Standard State Specifications and its supplements. The upper six (6) inches of the subgrade shall be scarified, mixed and recompacted to the following compaction requirements: Percent Density Moisture Minimum Requirements Maximum 95 Min. Opt. -3% Opt. +3% Areas not meeting specified moisture density test requirements shall be removed and recompacted at the Contractor's expense. All subgrade compaction and water necessary for subgrade construction shall not be paid for directly but shall be considered subsidiary to the items of the contract. Excavation, backfilling, and sawing control joints, keyway, tie bars, dowel pins, and rubberized joint sealant shall be considered subsidiary to the unit price per square yard of pavement. %t� h/a�.r�osti- fr; City ,)_:rVC,Cs LC; 99 99 Av 0 Corporation Line 4-174 40tiak 9- ar-as \`. c t L I et n Construction Area cisatoontern,,,,.. witat jco w eg a=e sai ;oZ` a V g4.IAd°FESS/4'6eanapOYojNt• 4oe,O Y n i eer,' v Y C 741 5 7 STA 99+62.62 NE CORNER OF THE SE 1/4 OF THE NW 1/4 OF SEC 24-7-10W 99+00 19-02— 1903—_ 1904-- .- 100+ 00 t K19031 FLC\ \ \1903.80 U.--- \ \ 19089 FL U 1904.2KTC i _ c90 CD 101+00 900 102+00 �8S \ \\ LLt N- 103+00 X1899 104+00 O \ cru c C E ---dldcgted\ip-rap. t��alatal�i .:1 0) 105+00 106+00 —1898 107+00 108+00 ao QD ts9 a7-Wcn U 109+00 54 Ir+. -``'c1.44: 'i' •etolka'a i� 1`1�iJ`Q�a��1�a�a�1�a'� 3" Ba/ast Fou iishe1 b Natural gr liattatAtisWiaVe l 1 ii .'• T 1•'2.447. 1901.94TC b i ewe. o 0 10" •SAN asy I — ROW 1904-" 1:l3°actIV`_tlMP k�a��1��a�a`aga� 1898.94 TC 18 • :. 1 03.30 CL i ,1902.80 CL 11902.30 CL 1903-- NA w x x :Or •< - = 1901 —�- 1992 x 904 60.00' REREMOVAL-,Description / BUILD'--- — ~\ Side \Quantity / Header Lt. & Rt. 30\ LF Trees Lt. & Rt. 7 ch I Shrubs and Brush Lt. & Rt. EQ L \ Rip -Rap of end of existing pvmt. to be relocated to end of 24" pipe. Lt. & Rt. EQ —. Fence (to be moved by others) Rt. 225 LF Power Poles (to be moved by others) Rt. EQ 90 .b 0 4 189 89: j. t L —:1$98.30 CL 6 :•8•"`r x I\1 899N \ \ + \ 1895 110+00 ap 2' thick Meuse Pit //a_ 1897 1897.44 TC 1895.94 FL — 895. 897.94 897' a9 w / 97 / /• / / 1901 •.099 1990 BASELINE: EAST LINE OF THE SE 1/4 OF THE NH 1/4 OF SECTION 24-7-10V1 L7 L5 L4 L1 TBM1: TBM2: TBM3: 1910 1900 1890 1880 1870 NW BOL ON FH HASTINGS BM #7 NW BOL- ON FH NE CO' BRAS SW CO OF BURLINGTON & "L" Sy. ELEV 1909.97 CAP © BURLINGTON & "U' ST. ELEV 1916 OF BURLINGTON & "M" ST. ELEV 1 1905.01 N 1 I a-00 < 0 Z D CD ICO: 0 0 z 0 cn DATUM N) O 0) 99+00 O 0) 33 2 END OF +STING PAjEMENT 0 LINE O 8 Oka Q 1% Slope Proposed Geier Line Grade iu 3-oun wall into heede Tssn m q W MI 111111111111111111111111 III SI 0 25 50 100 GRAPHIC SCALE Full Scale: 50' : Half Scale: 100' STA 125+99.64 SE CORNER OF `5THE NW 1/4 OF SEC 24-7-10W / BUILD'--- — ~\ cription / Side Quantity 8T, 74 B,PCC,P mC Lt. & Rt. 3,315.5 1 6T.Integr Curb Lt. & Rt. 1,65%.76 LF 8r,47p,PCC,Driveway Re 376.24 SY 67, 7B,PCC,Driveway / Lt. 71.44 SY / /if' Ballast rip-rec Lt. & RT. 365 SF/ 4tural grad buffer Lt. & t p-!...----227 SY Headtn & 3' Curtain Wall Lt. & RT. 36 LF A(!1'`u t Manhole Lt. 1 Each Silt Fence Lt. 830 LF Tl'pe "A" Grote/Curb Inlet Lt. & RT. 2 Each 18" Class Ill RCP Lt. & RT. 40 LF 24" Class Ill RCP Lt. 16 LF 18" Flared End Class Ill RCP RT. 6.5 LF 24" Flared End Class Ill RCP Lt. 6.5 IF 54" Class Ill RCP Lt. 90 LF 54' Flared End Class III RCP 32 is Lt. Tssn m q W MI 111111111111111111111111 III SI 0 25 50 100 GRAPHIC SCALE Full Scale: 50' : Half Scale: 100' STA 125+99.64 SE CORNER OF `5THE NW 1/4 OF SEC 24-7-10W SCALE: HORIZ. VERT. HORIZ VERT 1910 R7 R6 R5 1900 R4 sampan's a 0.50% Slope SMIslimm 1890 1880 1870 R3 R2 100+00 to o5 07 oo tri C, a0 101+00 0) Lri 0n 00 N tri C, 00 102+00 00 u7 0n oo N 03 C) co 103+ 00 oo O O 0) 104+00 105+ 00 0) in 0) 03 0) 03 106+00 N V a> 03 107+00 108+00 N C) 00 109+00 fr) M 0) 03 110+00 R1 IX w alc00 J Z Z 0 O C00 r 10 ConsultingGroup, Inc. P CITY OF HASTINGS ENGINEERING DEPT. REVISION REV3 Project Burlington Avenue "M" Street to 828.88' South FILE NAME FILE NAME Proj. No. PD 2005-7 REVIEW DATE REVIEW DATE Description Plan & Profile DATE Design By DWM Date 4-7-05 Contractor Drown By DWM Approved Byt"./ Dm. No. 1 of 7 SCALE: HORIZ. VERT. HORIZ VERT 1910 R7 R6 R5 1900 R4 sampan's a 0.50% Slope SMIslimm 1890 1880 1870 R3 R2 100+00 to o5 07 oo tri C, a0 101+00 0) Lri 0n 00 N tri C, 00 102+00 00 u7 0n oo N 03 C) co 103+ 00 oo O O 0) 104+00 105+ 00 0) in 0) 03 0) 03 106+00 N V a> 03 107+00 108+00 N C) 00 109+00 fr) M 0) 03 110+00 R1 IX w alc00 J Z Z 0 O C00 r 10 ConsultingGroup, Inc. P Engineering Architecture Surveying Planning g g y g 9 REVISION REV3 I REVISION REV2 REV/BION REV> FILE NAME FILE NAME FIELD BOOK FIELD BOOK REVIEW BY REVIEW BY - REVIEW DATE REVIEW DATE DRAWN BY DRAWN BY DATE DATE I PROJECT NO. PROJECT PLAN SHEET 1+00 1+50 6+00 6+50 7+00 7+50 8+00 8+50 8'40" i 8, 10" 10'-0' Typica 10'-0' I } 10'-0' I 10'-0" 10'-0" 10'-0" Typical 8'-0" 87-0" 1 2+00 2+50 3+00 3+50 4+00 4+50 5+00 5+50 10'-0' Typica 8'+0" i 10'-0' 8' ±0" 6+00 10'-L 10,-0' I } 10'-0" Typical 10'-0' 8'-0" 8'+0" CITY OF HASTINGS ENGINEERING DEPT. Project Burlington Avenue "M" Street lo 828.88' South Proj. No. PD 2005-7 Description Control Joints Design By DWM Dote 4-7-2005 Contractor Drown By DWM ^perm'/a h pre' tk. 2 of 7 a- U n7 4.89% slope FL 1897.91 TY „A" 1899.06 aI m FL 1899.38 co FL 11899.52 TYPE "A" DETAIL OF TANDEM 72" LONG COMBINATION 2047 Curb Inlet Frame, Grate & Curb. Two Abutting (DEETER OR EQUAL) Front View a SYS`�SiC���`YJ��Qy�`y �SY.���Q�Y.��Ye��YS�.o��.�IS, e I o o a. e .j a a. } 4 a ' :4 L L1 i CO a! O Vertical and Horizontal Reinforcing No. 4 Rebor 0 12" O.C. Side View .4. e 4. o (2 A Th9560 EL i 0.34% sl o De Street Centerline 51„ RCP's X9.5.40 FL Note: Flowable—fill is to be placed in—between pipes and 47B concrete is to be placed in—between flared ends to prevent erosion. CITY OF HASTINGS ENGINEERING DEPT. Project Burlington Avenue "M" Street to 828.88' South Proj. No. PD 2005-7 Description Details Design By DWM Date 4-7-2005 Contractor Drown %' DWM Approved Bytk% j/I% p T ^ D"'• No. 3 o f 7 )n o a) o in o 0) a) co o rn co 10 0 0) o 0 a) to 0) co o CT) co to 0 a) o 0 0) to 0) co o 0) co to 0 a) o 0 a) in 0) co o 0) co 10 . 0) o o a) r to a) ao o a) in o a o o 0) in 0) co o 0) 10 o cs) o o 0) r to a) co r 2004-1 S. BURLINGTON SURVEY HASTINGS, NEBRASKA SCALE: HORIZ. 1 "=20' VERT. 1' =5' =440.29 SF 879.14 =3,035.84 CY =509.18 SF =984.60 CY 0 N � � :554.19 SF r842.62 CY )- 0 0 0 N ^ =355.84 SF :329.48 CY 329.48 CY I a) co I o u II a) 0 0 ila» F o N a) 0 tesla`» II 0 I o n N o � iIa`» II o r= I I I n n aa)) 0 u-1a» 11 0 _i I I d' =74.10 SF =206.20 CY =510.79 CY =148.60 SF =212.90 CY =304.59 CY =80.33 SF =83.50 CY )- 0 II ..--- — — -8.85 SF x8.19 CY 8.19 CY illy located I 1 I ;0 i eoo , i 51 a°��o 1 IT) i- j \ 0 I o T. Vol. swer is actu ' 1 I 0ki e Phis storm s ition 100+40 i o e, e l \ ` �z z o 5'668 LI 1 e �. e \46ZO. � ---- a �� 'z061 001 7SaM MC b I — --- 40. r4 11 i --- ll , 44.061 7061- 01 .06 ld I 46'. W X64 Ol 064ld ti4'£0 4 0l ma 82'6681 S £'061 73 ;Saki 414 1 e9' I —98 It i I - 1 a -00 PAVING) I 0 0 o le O 0 o ' 1 —0 0 �n ,0. o o OC'CO o Ln k" t 5 if r61 3N17a 1N30 44'406414 46'4064 0 3 r •1 NO1103S c r•.'406412 3N17 '3064 01 #1 l 035 44' 46' 0 064l9r 64 01 3N17 NO 035 46'30.41d`' 44'£0 o I 1_e \ 3N11 k NO/lOSS 100 - (END OF ( SN 122061 ! 1 73 15'03 a) 3N 1 NO/1035 a) 3N 1 N0/103S 4 Ol 90 668E a N Z \N 't061 001 15'03 J J 1If\ J • •' 6'l 1J J N e e U_ 0 o000 N. 01 CO l I.L 03 U- U) Fri 00 1893.40 1 o ( I I I A 1 All 1 ICC z W Lu q GRADE 1/4 GRADE 1G GRADE `" C Z CD t 1Qc Z �'CD ' z w I z 1/4 W i EXISTIt o / 14-1 I w EXISTING I I i I I r. o 1t I i i ( i I I II ITY OF STINGS GINEER G DEPT. urlin t• n * venue ,r Streets• 828.88' S . uth o. Bes«cvBon Cross Sections 013�� Design By DWM Date 4-7-2)05 Contractor 41 Chr Drawn B' . DWM "ppmvea t an. No. 4 of 7 q6�.. QA4 1,-.010 wm j 10 o 0) r 0 0 a) r )n 0) oo r 0 0) co r to o a) r o o a) r in rn co r o 0) ao r to o 0) r o o 0) r in 0) ao r o 0) ao r )n o a) o o a) r to 0) ao r o 0) co r up o a) r o o a) r in 0) o0 r o 0) co r in o a) r o o a) in 0) o0 r o 0) 0o r )n o 0) r o o 0) r In o a) a) oo co r r 5.5 . °. Z , • «r rs tq JE0 Consulting Group, Inc Engineering Architecture Surveying Planning REVISION REVISION REVISION FILE NAME cross sections dwg FIELD BOOK REVIEW BY REVIEW DATE DRAWN BY I DATE MS I9/27/2004 1 PROJECT NO. 1 330SU197 1 CROSS-SECTIONS XS 1.7 to o rn r o o a) r to a) 0o r o a) co r in o a) r o o a) r in a) 03 r o a) co r in o a) r o o a) r In a) 00 r o a) 0� r in o a) r o o a) r in a) co r o a) 0o r to o a) r o o a) r to a) oo r o a) co r to o a) r o o a) r in a) 00 r o 0) 0o r to a) r o 0S. a) r in a)o co r 2004-1 BURLINGTON SURVEY HASTINGS, NEBRASKA SCALE: HORIZ. 1"=20' VERT. 1' =5' 0 110.80 SF 200.86 CY 5,031.45 CY Fill Area=106.13 SF Vol.=195.03 CY T. Vol.=4,830.59 CY ( q I Fill Area=104.50 SF Vol.=181.14 CY T. Vol.=4,635.56 CY I N t7 H O LLla Vol.=150.14 CY T. Vol.=4,454.42 CY Fill Area 71.02 SF Vol.210.04 CY T. Vol.14,304.28 CY 1 I I Fill Area=155.82 SF Vol.=397.50 CY T. Vol.=4,094.24 C Fill AreaT273.48 SF Vo1.4660.90 CY T. Vol.=3,696,74 C O a) 00 O ..---.. I a n u 0 —• —• o CLQ > > Cut Area=34.70 SF Vol.=57.36 CY T. Vol.=1,366.83 CY Cut Area 27.25 SF Vol. 53.38 CY T. Vol. 1,309.47 CY 1 1 Cut Area=30.40 SF Vol.=111.09 CY T. Vol.=1,256.09 CY oa 1 N k-» Vol.=199.19 CY T. Vol.=1,145.00 CY -- --- Cut Area=125.54 SF Vol.=178.27 CY T. Vol.=945.81 CY Cut Area=66.99 SF Vol.=125.08 CY T. Vol.=767.54 CY c 0 QD ii IN _��>> 1 cola I Vol.=131.67 CY T. Vol.=642.46 CY Q 1 � I I 1i I k 0 w; I I I k I ! I I 64'8,p84 V6'L68L 01 ld t 4613684 44'8681- e1 ld 44'668L 66'8681 Dl ld 1 46'6681 �Jl�.- 44'6684ld Iit WOO L 01 66'66 L ld V6'0061 01 44'0061- ld ft' I-061- 01 46'0061- ld 0£'868 h10 \ \ I \3N17 ` a :. 0 \ —oEl e In 00'0081- 3— 0 + \3N17 0n68 4-13 in in 4- 08'6691r---08' i0 0 —08'0 0 0 ` 0 46'1684 W8681 in id O 01 , t 3N17 NO1103S _ 44'8681- 66'8681 in ld — 01 ` ,•` NO/1235 46'8684 W6681- ld — Dl NOLLO3S i 0 W6681- id 46'6681- 01 3N17 \ NO/1035 I^ — 46'6681- id 46'0061- 01 3N17 �„ , _ N Z O P tVu 103+25. M ' 3N17 NOl. W0061 id 46'0061 01 33S \\> c' 0 ' 3N/7 Ni ,1035 66'0061- id 44' 1064 01 0 N.- NN,L 1 54,R Illy is at sta / c'LLco co r I:- 1_,.. \ , 14‘.% 18!3.45 FL • 1892.4 N.t::Pioina actu. , ? c., P, , , I „.., c.,„ .., 00 _0 „.._. ce, v) „ Li 1 II 1 I / i I 2 i / ' t 71 II 1 ; I I ( l 1 VG GRADE 1 EXIST! G GRADE / I I 'G GRADE ,,711 1 I EX/SMIG GRADE A I EXISTING GRADE i I EXISTING GRADE / ' i EXISTIN GRADE Li li ENGINEER 1-'y -OF ASTIN,GS NG DEPT. i Pr° ` "M" Burlin n Avenue Street 828.88' South Poi• No. PD 005-7 0 ti W Cm Sections oea DWM Dote 4-7-2005. contractor ,>`'�®�u�W/ Drawn BY DWM *Vwo`'ed BYSI V //l o`Pi ern' No. 5 of 7 OO •., = it in 0 r o o a) r to c) co o 0)o co r in a) r o to o .0)rn a) 00 r r o op r to o a) r o o a) r to 0) a0 r o 0)o co00 r to a) r o o a)CO00 r to o) .— o 0)o r to a) r o 0 a) r to a) COao r o a)o 00 r in a) r o in o a) 00 r r o a)o CD r to 0) r44 o o a) to 0 0) a)rn03) 00 c0 F' %t i �JL I REVISION 0 Consulting Group, Inc Engineering Architecture Surveying Planning I REVISION REVISION ALE NAME cross sections dwg FIELD BOOK REVIEW BY REVIEW DATE DRAWN BY MS DATE 9/27/2004 PROJECT NO. 330,90197 CROSS-SECTIONS XS 1.2 10 Consulting Group, Inc Engineering Architecture Surveying Planning REVISION to 0 0) o o a) r to a) oo r o a) co r in o 0) r o o 0) r to 0) ao r o 0) co r to o a) r o o a) r to a) 00 r o a) co r to o a) r o o 0) r to 0) oo r o 0) oo r to o a) r o o a) r to a) co r o 0) co r to o a) r o o 0) r to 0) co r o a) co r to o a) r o o rn r to cn oo r 2004-1 S. BURLINGTON SURVEY HASTINGS, NEBRASKA SCALE: HORIZ. 1"=20' VERT. 1"=5' =51.14 SF =100.80 CY =7,274.40 Cl ` -57.72 SF =133.97 CY =7,173.60 CY =86.97 SF =183.06 CY =7,039.63 C1 -110.73 SF 228.44 CY 6,856.57 Cl 1 1 1 Fill Area=135.98 SF Vol.=501.45 CY T. Vol.=6,628.13 CY \ Fill Area=405.59 SF Vol.=684.09 CY T. Vol.=6,126.68 CY 1 ` Fill Areaf333.23 SF Vol.1-411.14 CY T. Vol.=5,4182.0509 C 4 o 1 1 1 0 _ - _ at o 0 Epz" I 1 o _ 0 Z. 0 i�lQ" ' 1 1I o _ - o 0 o LIQ" , 1 o • - v o 0 i�IQ" I I Cut Area=156.36 SF Vol.=283.95 CY T. Vol.=2,312.01 CY 1 Cut Area=150.31 SF Vol.=207.02 CY T. Vol.=2,028.06 Cl Cut Area=73.27 SF Vol.=122.37 CY T. Vol.=1,821.04 CY I1 ' 1 I Cut Area=58.89 SF Vol.=105.36 CY T. Vol.=1,698.67 CY i ' I II Cut Area=54.90 SF Vol.=92.96 CY T. Vol.=1,593.31 CY 1 Cut -/ Areat45.50 SF VoLI71.76 CY T. Vol.t1,500.35 CY 1 Cut 1Area -32.00 SF Vol.=61.76 CY T. Vol.=1,428.59 CY 0 r 1 1 1I 11 1 ' I I I i 1 as v) ko 1co � o 1 ti6.563101 46" 8414 w 69'9E84 64'568414 01 rta o sCP 66"5684 W968414 01 44'9684 46'568414 01 46"9684 01 46'968414 46'4681- 01 46968414 I 46"4684 01 44'468414 08'9664 La N r4 09=9684 OCL684 0 9918811 IoM .�►Q I 08"96$41 1 t 0 _ 111 08.9684-15 0 3 Lo 1 'L68-4-90 O 0 o3N/7 NO(103S - 46'4E8414 1717'9684 01 •0 3N/ r 61-5684 69'5681- NO1103S ' 14rr 01 ; 0 3N/7 — 44"568414 176'9684 NO/lOSS 01 o 3N1-7 ' 46 44'9381- NO/lOSS 684 14 01 46 9684 14r 46'9681-01 o l 3N1 N011 SS 46'96841_ b6"4684 01 o - 3N/7 NO1103S 46"468414 461684 01 106 Typical 3:1 Sjpe I � � t J _ J -1.50 FL 11.80 FL 11.90 FL r o O.. CJ I ! • o rer W o I kJ GRADE I I GRADE o QJG GRADE C.)z Z ,. CO ` v I leo I I (IST/NG I I I EXISTING O GRADE N G GRADE N EXISTI I III I I I I �. z R x L., 1 x I I 1 I + ENGI . T EER NG DEPT. ;ect "\A" Burling on * venue Street/ 1.828.88' South. Desc^Dlion - Oros- Sections �n BY DWM Dote 4-7- 05 CmWctor �0aa1 Drown By DWM sr,°t girt Dal* .It' 6 7 O U) O a) r 0 O O r in a) ao r 0 a) a0 r cO O a) r O O 0) r to O a0 r O 0) a0 r to O a) r 0 O a) r to a) a0 r O 0) co r to O a) r O O a) r U) 0) a0 r O 0) a0 r U) O a) r O O a) r in 0) op r O a) ao r to 0 a) r O O a) r to a) c0 r O a) c0 r U) O a) r 0 O 0) r U) O w a) a0 co r r o o 10 Consulting Group, Inc Engineering Architecture Surveying Planning REVISION REVISION REVISION FILE NAME cross sections dwg FIELD BOOK I REVIEW BY REVIEW DATE DRAWN BY MS DATE I PROJECT NO. 9/27/2004 I 330 197 CROSS-SECTIONS A XS 1.3 air o a, 0 0) Lc co 0 0o o 0) 0 0) In co 2004-1 S. BURLINGTON SURVEY HASTINGS, NEBRASKA SCALE: HORIZ. 1"=20' VERT. 1"=5' I =34.85 SF :83.96 CY =7,457.41 CY X 1.35 cp4 I1 1 I Ell-)» 01a» Area=187.59 SF Area=55.83 SF Vol.=318.47 CY Vol.=99.05 CY T. Vol.=2,630.48 CY T. Vol.—T7,373.45 CY O co1 O <V r 0 �O w �o 1 1 11 I a II II . NO LLIQ > > 1 I =180.84 SF =341.14 CY =2,971.62 CY I I I 1 ' ` 1 9 II II II o• 0 01<>> k , \N CDl \ } tr) 1.1-1 Lu \ V W Lu / NOl1JJS O ti - ` rUSE PIT TO TH 109+50 � \ 3N 110• -USE PIT 7 GRADE ZN N91133S ct 7 4 J 0 — ti CO� �iJ O GRADE 1 1 O W C..) COW I I I 0 t yAgByf Sa train- d,b • lty� 6a c—� O a i ro ` ENGINEERING CITY OF HASTINGS DEPT. Project "M" Burlington Avenue Street to 828.88' South i I R ;. Na. PD soes-7 Description Cross Sections Design B,' -DWM Date 4-7-2005 Contractor Drawn BY DWM Dm. No. 7 of 7 1 i ino Oo inOLoo Oo to O 10 Consulting Group, Inc. Engineering Architecture Surveying Planning REV/S/ON REVS/ON REVISION I FILE NAME IMS sections dwg FIELD BOOK RENEW BY I REVIEW DATE DRAWN BY I DATE MS 9/27/2004 PROJECT NO. 330SU997 CROSS-SECTIONS XS 1.4