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HomeMy WebLinkAbout2002 10 14 Public Hearings A Second Reading - Ordinance 2002-27 Vacate and Abandon COMMISSION AGENDA ITEM A Consent Information Public Hearin~ X Re~ular October 14. 2002 Meeting ~ Mgrof-jDept! leA REQUEST: Community Development Department presents to the Commission, the second reading of Ordinance No. 2002-27, which will vacate and abandon a 66.65 foot long segment of a 5 foot wide utility easement, located along the west side of Lot 10, the Reserve at Tuscawilla, Phase I-A. PURPOSE: The purpose of this agenda item is to present to the Commission, the second reading of Ordinance No. 2002-27, which will vacate a 5 foot-wide, approximately 66.65 foot-long utility easement, located on the west side of Lot 10, Reserve at Tuscawilla, Phase I-A, as recorded in Plat Book 58, Pages 99-100 of the public records of Seminole County, Florida. CONSIDERATIONS: The applicant, Austin Homes, requests the vacation of the portion of an un-used platted utility easement that is not needed for utility provision, now or in the foreseeable future. The applicant states that the home buyer requests a retaining wall be constructed within this area of the lot. City policy prohibits constructing a retaining wall in an easement. Correspondence from utility providers, the legal description, and a map are provided as attachments. A similar situation occurred in Parkstone. However, in that situation, the retaining wall was determined necessary for maintaining the structural integrity of the house. The applicant states that no retaining wall is required, here, although one is requested by the home-buyer. The question arose as to the City's requirements for retaining walls. Section 6- 193 (Chapter 6, Article VII. Fences, Walls, Hedges) of the City Code requires any fence or wall to be set back at least 3 inches from the property line. The City October 14, 2002 Public Hearing Item A Page 2 regulates retaining walls primarily through the Florida Building Code, which the City's Building Division enforces. Sections 1608.1.1,1803.1.3, and 1815 of the Florida Building Code (Attachment C) specify when or where a retaining wall is required to 'support a structure. Attachment D graphically demonstrates the area adjacent to a structure that must be filled or maintained with soil as a finish grade. Where the finish grade intrudes into area comprised of one foot above/beyond an imaginary line extending at a 45 degree angle away from the building foundation ("line of repose"), the Florida Building Code requires a retaining wall to be constructed to ensure the structural integrity of the building. Retaining walls must be designed to resist the design lateral soil loads calculated for various soil types (depicted in the attached Table 1608.1.1 on page 16.5 of the Florida Building Code). The attached Table 1815.4 on page 18.21 ofthe Florida Building Code specifies the thickness and reinforcement for a particular retaining wall of a certain height holding back soil with one of the various load calculations from Table 1608.1.1. APPLICABLE LAW: CHARTER. ARTICLE IV. MAYOR AND CITY COMMISSION Sec 4.14. Actions requiring an ordinance. In addition to other acts required by law or by specific provisions of this Charter to be done by ordinance, those acts of the city commission shall be done by ordinance which: (6) Conveyor lease or authorize the conveyance or lease of any land of the city; Section 4.15. Ordinances in general. (a) Form. Every proposed ordinance shall be introduced in writing in the form required for final adoption. No ordinance shall contain more than one subject which shall be clearly expressed in its title. The enacting clause shall be "The City of Winter Springs hereby ordains ....." (b) Procedure. An ordinance may be introduced by any member at any regular or special meeting of the commission. Upon introduction of any ordinance, it shall be read in its entirety; provided however the said reading may be by title 2 October 14, 2002 Public Hearing Item A Page 3 only if all members of the city commission so vote. All ordinances shall be read twice, the second reading of any ordinance shall be by title only and shall follow the first by a minimum often (10) days; provided however, this requirement may be waived by a unanimous vote of all five (5) members of the commission. All ordinances shall be posted in the city hall for thirty (30) days after their first reading. (c) Effective date. Except as otherwise provided in this Charter, every adopted ordinance shall become effective at the expiration of thirty (30) days after adoption or at any date specified therein. Section 4.16. Authentication and recording; codification. The mayor and the city clerk shall authenticate by their signatures all ordinances and resolutions adopted by the city commission and the city clerk shall record in full in a properly indexed book kept for that purpose all such ordinances and resolutions. Section 6-193. Distance from property line. Fences or hedges must be at least three (3) inches from property lines. Florida Building Code (please see attached sections) FINDINGS: 1) Austin Homes requests to vacate the subject 5 foot-wide utility easement that extends approximately 66.65 feet within Lot 10, the Reserve at Tuscawilla, Phase I-A, along a portion of its west side. 2) The Public WorkslUtility Director reviewed this request and affirmed that the subject easement is not needed (now or in the foreseeable future) and that he has no objection to it being vacated. 3) Letters were received from applicable utility providers, stating no objection to vacating the easement. 4) The applicant and builder state that no retaining wall is required, but that the home-buyer wishes to construct a retaining wall in the portion of the easement being proposed for vacation. 5) Other than to restrict construction of a retaining wall to being setback at least 3 inches from the property line and to prohibit their construction within a utility easement, the City's regulation of retaining walls is through enforcing the Florida Building Code. CHRONOLOGY: 3 October 14, 2002 Public Hearing Item A Page 4 July 11,2002 Request to vacate received by the City. September 9,2002 - First reading of Ordinance No. 2002 -27. September 23, 2002- City Commission defers second reading of Ordinance No. 2002-27 until October 14,2002, requiring information regarding the City's regulation of retaining walls. RECOMMENDATION: Staff recommends the City Commission consider and approve Ordinance No. 2002-27. ATTACHMENT: A - Proposed Ordinance No. 2002-27 B - Acknowledgement from utility providers C - Pertinent sections of the Florida Building Code D - Graphics, depicting where a retaining wall is required COMMISSION ACTION: 4 !nt ~y: BROWN,WARO,SAlZMAN&WEISS,P.A.; 407 425 9596; Sep-4-02 5:18PM; Page 2/4 ATTACHMENT A ORDINANCE NO. 2002-27 AN ORDINANCF. OF THE CITY COMMISSION OF THE CITY OF WINTER SPRINGS, FLORIDA, RELATING TO THE V ACA TION O~' A VTILf1Y EASEMENT WITHIN THE CITY OF WINTER SPRINGS LOCATED ON LOT 10. RESERVE AT TUSKA WILLA, PHASE I-A, AS RE(:ORDED IN PLAT BOOK 58, PAGES 99-100 OF THE PUBLIC RECORDS IN AND FOR SE:MTNOLE COUNTY, FLORIDA; PROVIDING FOR THE REPEAL OFPRTOR INCONSISTENT ORDINANCES AND RESOLUTIONS; PROVIDING FOR SEVERABILITY; AND PROVIDING FOR AN EFFEC11Vf. DATE. WHEREAS, the owner of real property, more particularly described below, has requested th~ vacation of a platted utility easement running the length of the westerly boundary of said property; and WHEREAS, (he City of Winter Springs ill not currently using, nor has any plans to use, the subject utility easement; and WHEREAS, each provider of utilities. within the City of Winter Springs, has indicated in writing, a copy of which is on tile with the Community Development Department, that it has no objection to the vacation of the subject utility easement; and WHEREAS, the City Conunission of the City of Winter Springs, Horida, hereby finds this ordinance to be in the best interests of tile public health, safety. and welfare of the citizens of Winter Springs. NOW. THEREFORE, THE CITY COMMISSION OF THE CITY OF WINTER SPRINGS HEREBY ORDAINS, AS FOLLOWS: Section t. Recitals. The foregoing recjtals are hereby fully incorporated herein by this reference as legislative findings of the City Commission of Winter Springs. ~ection z. Easement Vacation. TheCity Commission, in accordance with Section 17-27 ofthe City Code. hereby vacates 66.65 feet of the five (5) foot wide utility easement located along the westernmost side of Lot 10, Reserve at Tuskawilla, Pha:se l-A, as Recorded in Plat Book 58, Pages 99 ~ 100, of the Public Records in and for Seminole County. Florida. and as more particularly described on Exhibit .. A" of this Ordinance, the same being incorporated herein by this reference. City of Winter 3pring~ OrdilWoc;c No 2(J02.27 I'lec I of 2 ~nt ~y: BAOWN,WAAD,SALZMAN&WEISS,P.A.j 407 425 9596j Sep-4-02 5:19PMj Page 3/4 Following adoption of this Ordinan~, the same shall be rccorued by the City Clerk in the Land Records for Seminole County, Florida. Section 3. Repeal of Prior Intonsistent Ordinances and Resolutions. All prior inconsistent ordinances and resolutions adopted by the City Commission, or parts of prior ordinances and resolutions in conflict herewith, are hereby repealed to the extent of the conflict. Section 4. Severability. If any section, subsection, sentence, clause. phrase, word or provision of this ordinance is for any reason .held invalid or unconstitutional by any COurt of competent jurisdiction, whether for substantive, procedural, or any other reason, such ponion shall be deemed a separate, distinct and independent provision. and such holding shall not affect the validity of the remaining portions of this ordinance. Section S. Effective Dale. This Ordinance shall become efiectivc immediately upon adoption by the City Commission of the City of Winter Springs, Florida, and as provided by City Charter. ADOPTED by t.he City Commis~ion of the City of Winter Springs, Florida, in a regular meeting assembled on the _ day of. I 2002 A TT~:ST: PAUL P. PARTYKA Mayor --...... ANDREA LORENZO-LUACES City Clerk Approved as to legal form and sufficiency for the City or Winter Springs only: Anthony A. Ga~ane$e, City Attorney First Reading: _ Second Reading: Eflective Oate: Cily of Winter Spcing~ OnJinum:c N\,). 2002-27 PAll" '2..( '2 ~ I lLJ' t/I ~OC' ~'! ~V 1f:;~ I ~~ 'F/ ~~ / i \...' / ~--< ;,"/ -"" ~1l4iJJ ~/ 1'-:-: ' . , ~/,"J . "" _"1,. ~ ...:.. .o:~ . - ...., . \,) ~ l.U1J ~ ~ O<J (V) SlJ W LI. 'l>>~ 1& IlJIIiI 7121 Vl\CA'tol..D r~~~,.rr ArtA ~l ) ) ~ '..:.:i',":.... '.;':::.'i'. ......:.t....."..... . L J~ r C.3 C.4 Z5. 00' cI8' ido' 125. 01)' I!i'" <<' ~G' ,1.18" J4. 35' 11. ZJ' 2Q. 5S' ~i~~ i 1'.2Jl' 34. 2~' IIl&-H-3Q. C'f: 1.II.L n '...c. ""JI'I:,,, I · tIS 1UIFIII ~ -.s llUJ I~ In ..... I.a. .toI CCllnillllll u. _ flU ~ ~ UT 11 75. 00' . OR . n7'4"WE I I i ! j z 1M:e1 ,,, tt:1tSElIY A T 10ft ~a: AREA ~i_ t<i~~ S..::; 1&1.... a: ~~~ ,,~~ . . - ~~ IJIJ)jN lie IUT ~ CAEBs Illlll S\8l1 Y 1511:1 PUT 100( ~JII.tiES 1-1. / / I / ( ""'-- W\':~'?J': ~ ~am .... saa-!5" OT' Ii 8J.OO' . OR - --- 1001. r-- . _1U.\I1l1II .lDJII11i IIlG flU r tF I1E I(SER'Yf: AT lVSCA III UA RUSE I. pur acor ~B. PAGES 3l-~O. 1I:IU L 'IIQ. JlI nn ~ IS ~ ~ . =='7"_ ..- !'J:::'" ij".--- j \44~':'-=:- .....1 "'11I".-,- ..."'......... , !i~..r ::I. u.,_,. ...,... ...- _.- c .., .....IS r.1~ ".2!:f<-- r=.:===-- ~-~.:r.:r:. ~Rll~_~. .. -..... -.: twI saocr.., """1_ iIl';ott'~~ INIS IS If WU'" U., I lint: IlVlnn lilt lU r or r.AYn flljt NPAler.& & ~tl.1l!lil Fl.UIGllr nal) ~ -'11I1. lIUlIIt.I CDr:v sw... ..l.W..!U1I5. CllILl) ...JJJ1/l!'15.-_ JIll: ill.lI. !6Ul'1T 11II: lQ1 fa. Ill5llI'If 11 MlCI.rllU. ~ H is .\MI Gflar~ T1II'S ilID'll" ll15 I W i nmllClIf.:..r " I ""r~: I *lAB IN PUt ea lill PIIrE gt-1OtI. I'IltllC Jl(toms lJ loc IM'LE -.-...--.. r ClIlDm. illA Illof AA~IIlI/~Rtm lND L ---- .... ,..,.".......... """ta 01. IlU!I.k lllGln.......... . - - . MI/CY NI. U<<:. . _ ~__ . l ..... ---.- - ,-,.-. ATTACHMENT B CITY OF WINTER SPRINGS, FLORIDA 1126 EAST STATE ROAD 434 WINTER SPRINGS, FLORIDA 32708-2799 Telephone (407) 327-1800 Fax (407) 327-6695 July 26, 2002 TO: John Baker, Current Development Coordinator FROM: Kipton LockcufT, P.E., Public Works/Utility Director /~ RE: Request for Utility Easement Vacation Lot 15 - Parkstone Unit 1 We have reviewed the request to vacate the 5' utility easement along the west side of Lot 10 of the Reserve at Tuscawilla. The Winter Springs Utility Department has no obiection to the request. Cc: Larry Coleman, Austin Homes Florida Power ;\ Progres~ Energy G;~~nn~;!'i R~~~!'l"'f'r;D July 18, 2002 JUL I 9 2002 CITY U! \-,.,\(<.,:, " :~i_'J'INC<,~ BUII_OI:'<'; UU..^lnMc;Nr' Mr. Larry Coleman Austin Homes 800 Westwood Square Oveido, FL 32765 RE: Lot 10, THE RESERVE AT TUSCA WILLA PHASE 1, according to the plat thereof, as recorded in Plat Book 48, Pages 31 - 40, of the Public Records of Seminole County, Florida. Dear Mr. Coleman: Please be advised that Florida Power Corporation has "no objection" to the vacation and abandonment of those certain portions of 5 foot wide platted utility easement being more particularly described as the West 5 feet and the South 5 feet of the West 160 feet, of Lot 10, RESERVE AT TUSCAWILLA PHASE I, according to the map thereof, as recorded in Plat Book 48, Pages 31 - 40, of the Public Records of Seminole County, Florida. If I can be of further assistance, please do not hesitate to contact me. c;;:;~c#~~~ Lori L. Herring Land Agent North Central Region ,: ii ~~ 1< II I' \~ \~ JAMESTOWN ENGINEERING. 2801 West Slale Road 426. Oviedo. Florida 32765. r~lephono (407) 359-4429 . Facsimile (4071359.4449 A Florida Pro.qross Company ! ,I i~ i: .~. / @ BELLSOUTH BeIlSouth Telecommunications, Inc. Room 400 500 North Orange Avenue Orlando, Florida 32801 Office: Fax: Pager: Mobile: Inlernel Marie G. LoCaslro@bridge.bellsouth.com 407245-3015 407648-5771 800 806-8547 407 325-5584 Mark G. LoCastro, P.E. Director - Provisioning July 18,2002 RIE=""~II' '1;0 Jut 1 q 2002 Larry Coleman Austin Homes 800 West Hwy. 426 Suite E Oviedo, FL 32765 '.' :;.i '1{i1\IC~; g\ \ " "\')ING'OlYAHTMENT (~1I1\. RE: Utility Easement Vacation The Reserve at Tuscawilla, Lot 10, south property line. This letter will serve as our notice that BellSouth has no conflict, or objection with your request to vacate the above noted utility easement, per your request dated 6/25/2002. Please call 1-800-432-4770, to have all utilities field located prior to any type of work commencmg. Should you have any questions, please do not hesitate to call Martin D. Nosie at (407) 327-0447. Sincerely, ~., Mark G. LoCastro Direcor - Network Provisioning mdn ~ 87/25/2882 88:34 4876561152 TmE WARNER OCOEE 84.1 .~ac:,!i.,\' 1~'(.I(1(j O':':(}=~'. Fltl;.({J,,; .f47o!-2Y/6 T~j 4.07-53~-!i5Yi'! Fa.\ 4l.l7-(;5b-1 /(j2. ~ TIME WARNER " COMMUNICATIONS July 25, 2002 Lawrence 1. Coleman Austin Homes 800 West Highway 426 Suite E Oviedo, Florida 32765 Re: Request for Vacation of a Utility E3~e.lJlent SECTION 6, TOWNSIll.P lA, RANGE 31 Dear Mr. Coleman, Time Warner Communications bas reviewed your request for a Vacation of a Utility Easement described as: That portion of a 5' Utility Easement located within the property of 138 Cherry Creek Circle, Winter Springs, as illustrated in your Fax correspondence dated JuJy 19,2002. Vacation of Easement for the: purpose of proposed construction of a retaining wall. Time Warner Communications has No Objection to the Vacation of a Utility Easement described above. Please do not hesitate to call me at (407) 532-8508 should you have any additional questions or concerns. Sincerely, ~~~j'IA- fOG: " PJ. King Time Warner Communications Construction Manager cc: Marvin L. Usry, Jr. -+'~ Construction Supervisor P JKJvbs .' TiIHl' It'hnl(,,,( El1f,"'(li"flte'/lI.,<J.d\,(11I('t.."/N(,1'hflH\(' Pt,rr'leF.rllip . Ffr,,'i(/(/ O;I'i,\"OIl PAGE Ell/En ATTACHMENT C ( based on straight bond or broken bond and the ti Ie profi Ie. GCp" roof coefficient for each applicable zone deter- mined from ASCE 7. Roof coefficient shall not be adjusted for internal pressure. Concrete and clay roof tiles complying with the following limitations shall be designed to withstand the wind loads prescribed in this section. 1. The roof tiles shall be either loose laid on battens or mechanically fastened or mortar set or adhesive set. 2. The roof tiles shall be installed on solid sheathing which has been designed as components and cladding in accordance with 1606.2. 3. An underlayment shall be installed in accordance with 1507.4. 4. The tile shall be single lapped interlocking with a minimum head lap of not less than 2 inches (51 mm). 5. The length of the tile shall be between 1.0 and 1.75 ft (305 and 533 mm). 6. The exposed width of the tile shall be between 0.67 and 1.25 ft (203 and 381 mm). 7. Maximum thickness of the tail of the roof tile shall not exceed 1.3 inches (33 mm). 8. Roof tiles using mortar set or adhesive set systems shall have at least 2/3 of the tile's area free of mor- tar or adhesive contact. SECTION 1607 (Reserved) SECTION 1608 SPECIAL LOADS 1608.1 Soil Pressures 1608.1.1 Foundation and retaining walls. Foundation walls and retaining walls shall be designed to resist applic- able lateral soil loads and applicable fixed or moving sur- charge loads. When a geotechnical soil analysis is not available, the soil loads of Table 1608.1.1 shall be the design lateral soil load. The design lateral soil loads given in Table 1608.1.1 are for moist conditions for the specified soils at their optimum densities. Submerged or saturated soil pressures shall include the weight of the buoyant soil plus the hydrostatic loads. 1608.1.2 Basement floors. In the design of basement tloors and similar approximately horizontal cunstructions below grade, the upward pressure of water, if any. shall be taken as the full hydrostatic pressure applied over the entire area. The hydrostatic head shall be measured from the underside of the construction. FLORIDA BUILDING CODE - BUILDING 1607 - 1608.2.2.2 TABLE 1608.1.1 SOIL LATERAL LOADS DESIGN LATERAL UNIFIED SOIL SOIL LOAD, SOIL DESCRIPTION CLASSIRCATlON PSF PER FOOT Well-graded, clean gravels; gravel-sand mixes GW 30 Poorly graded clean gravels; gravel-sand mixes GP 30 Silty gravels, poorly graded gravel-sand mixes GM 45 Clayey gravels, poorly graded gravel-sand-clay mixes GC 45 Well-graded, clean sands; gravelly-sand mixes SW 30 Poorly graded clean sands; sand-gravel mixes SP 30 Silty sands, poorly graded sand- silt mixes SM 45 Sand-silt clay mix with plastic lines SM-SC 45 Clayey sands, poorly graded sand-clay mixes SC 60 Inorganic silts and clayey silts ML 45 Mixture of inorganic silt and clay ML-CL 60 Inorganic clays of low to medium plasticity CL 60 Organic silts and silt-clays. low plasticity CL Note I Inorganic clayey silts, elastic silts MH 60 Inorganic clays of high plasticity CH Note I Organic clays and silty clays CH Note 1 For SI: I psf= 47.8803 Pa, 1ft" 0.305 m. Notes: I. Compliance with 1804.3 is required. 1608.2 Railing 1608.2.1 Handrail design and construction 1608.2.1.1 Handrails shall be designed and constructed for a concentrated load 01'200 Ib (890 N) applied at any point and in any direction. 1608.2.1.2 Handrails located other than within dwelling units shall also be designed and constructed for a load of 50 plf (730 N/m) applied in any direction. 1608.2.1.3 Loading conditions in 1608.2.1.J and 1608.2.1.2 shall not be applied simultaneously, but each shall be applied to produce maximum stress in each of the respective components or any of the sup- porting components. 1608.2.2 Guardrail system design and construction 1608.2.2.1 Guardrail systems shall be designed and constructed for a concentrated load of 200 Ib (890 N) applied at any point and in any direction at the top of the guardrail. ]608.2.2.2 Guardrail systems 10l;ated other than within dwelling units shall be designed and constructed for a load of 50 plf (730 N/m) applied horizontally at the 16.15 CHAPTER 18 FOUNDATIONS AND RETAINING WALLS SECTION 1801 GENERAL 1801.1 Scope. Provisions of this chapter shall govern the design, construction, and resistance to water intrusion of foundations for buildings and structures. Exception: Buildings and structures located within the High Velocity Hurricane Zone shall comply with the pro- visions of Sections 1816 through 1834. SECTION 1802 DEFINITIONS For definitions, see Chapter 2. SECTION 1803 EXCAVATIONS 1803.1 General 1803.1.1 When excavating for buildings or excavations accessory thereto, such excavations shall be made safe to prevent any danger to life and property, and shall be in accordance with Florida Statutes Section 553.60 Trench Safety Act. 1803.1.2 Permanent excavations shall have retaining walls of sufficient strength made of steel, masonry, or reinforced concrete to retain embankments, together with any sur- charged loads. 1803.1.3 Excavations for any purpose shall not extend within I ft (305 mm) of the angle of repose or natural slope of the soil under any footing or foundation, unless such footing or foundation is first properly underpinned or protected against settlement. 1803.2 Support of adjoining buildings and structures 1803.2.1 Notice to adjoining structures. Notice to the owner of adjoining buildings or structures shall be served in writing by the one causing the excavation to be made at least ten days before an excavation is commenced. The notice shall state the depth and location of the proposed excavation. 1803.2.2 Excavation 10 ft (3048 mm) or less. When an excavation extends not more than lOft (3048 mm) below the established curb grade nearest the point of excavation under consideration, the owner of the adjoining structure or building shall be afforded the necessary license to enter the premises where the excava1ion is to be made, and at his own expense, shall provide the necessary underpinning or protection. FLORIDA BUILDING CODe - BUILDING 1803.2.3 Excavation greater than 10 ft (3048 mm) 1803.2.3.1 When an excavation extends more than 10 ft (3048 mm) below the established curb grade nearest the point of excavation under consideration, the one causing the excavation to be made, if given the neces- sary license to enter the adjoining premises, shall pro- vide at his own expense one of the following: 1. Underpinning and protection required by that part of the excavation which extends to a depth greater than 10 ft (3048 mm) below the estab- lished curb grade nearest the point of excavation under consideration, whether or not the existing footings or foundations extend to the depth of 10 ft (3048 mm) or more below curb grade,or 2. Shoring and bracing of the sides of the excava- tion required to prevent any soil movement into the excavation. If permanent lateral support is provided, the method used must satisfy require- ments of the building official. 1803.2.3.2 If the necessary license is not afforded the person causing the excavation to be made, it shall be the duty of the owner failing to afford such license to provide the required underpinning or protection for which purpose he shall be afforded the necessary license to enter the premises where such excavation is to be made. 1803.2.4 Unestablished curb grade. If there is not an estab- lished curb grade, the depth of excavation shall be referred to the level of the ground at the point under consideration. 1803.2.5 Difference in adjacent curb grades 1803.2.5.1 If an existing building or structure requiring underpinning or protection is so located that its curb grade or level is at a higher level than the level to which the excavation is properly referred, then such part of the required underpinning or protection that is neces- sary because of the difference in these levels shall be made and maintained at the joint expense of the owner of the building or structure and the person causing the excavation to be made. 1803.2.5.2 For the purpose of determining such part of the underpinning or protection that is necessary because of such difference in levels, the level to which a building more than 5 ft (1524 mm) back of the street line is properly referred shall be considered to be the level of the natural ground surface adjoining the build- ing or structure. 1803.2.6 Party walls. A party wall, which is in good con- dition and otherwise suitable for continued use, shall be underpinned or protected as required at the expense of the person causing the excavation to be made. 18.1 1803.2.7 - 1804.3.1 1803.2.7 Adjoining structure protection. Where the nec- essary license has been given to the person making an excavation to enter any adjoining structure for the purpose of underpinning or protecting it, the person receiving such license shall provide for such adjoining structure adequate protection against injury from the elements resulting from such entry. 1803.2.8 BackfIll. Only approved granular materials shall be used for backfill. It shall be properly compacted in order to prevent lateral displacements of the soil of the adjoining property after the removal of the shores or braces. SECTION 1804 FOOTINGS AND FOUNDATIONS 1804.1 General 1804.1.1 Foundations shall be built on undisturbed soil or properly compacted fill material. Foundations shall be constructed of materials described in this chapter. 1804.1.2 Pile foundations shall be designed and con- structed in accordance with 1805. 1804.1.3 The bottom of foundations shall extend no less than 12 inches (305 mm) below finish grade. -- a'1804.1.4 Temporary buildings and buildings not exce~d- ing one story in height and 400 s9 ft (37 m2) in area shall be exempt from these requirements. 1804.1.5 Excavations for foundations shall be backfilled with soil which is free of organic material, construction debris and large rocks. 1804.1.6 Where water impacts the ground from a roof val- ley, downspout, scupper or other rain water collection or diversion device, provisions shall be made to prevent soil e~and di~er away from the found~ 1804.1.7 Finish grade shall be sloped away from the foun- dation for drainage. ~804.1.8 The area under footings, foundations and con- crete slabs on grade shall have all vegetation, stumps, roots and foreign materials removed prior to their con- struction. Fill material shall be free of vegetation and for- eign material. 1804.2 Soils investigation J 1804.2.1 Plain concrete, masonry or timber Cootings. Footings shall be so designed that the allowable bearing capacity of the soil is not exceeded. If structural plain con- crete, masonry or timber footings are used, they shall rest on undisturbed or compacted soil of uniform density and thickness. Compacted soils shall be tested to a minimum of <2.5!& of Modified Proctor in accordance with ASTM 0 1557 and compacted and tested in lifts not to exceed 12 inches (305 mm). If sufficient compactibilities exist, soils may be compacted and tested in greater lift thicknesses. 18.2 .A804.2.2 Questionable soil. Where the bearing capacity of the soil is not definitely known or is in question, the building official may require load tests or other adequate proof as to the permissible safe bearing capacity at that particular location. To determine the safe bearing capacity of soil, it shall be tested at such locations and levels as conditions warrant, by loading an area not less than 4 sq ft (0.37 m2) to not less than twice the maximum bearing capacity desired for use. Such double load shall be sus- tained by the soil for a period of not less than 48 hours with no additional settlement taking place, in order that such desired bearing capacity may be used. Subsoil con- ditions shalI be examined at the expense of the owner, when deemed necessary by the building official. /" .. I ,/ 1804.2.3 Natural solid ground or piles. Foundations shall be built upon natural solid ground. Where solid nat- ural ground does not occur at the foundation depth, such foundations shall be extended down to natural solid ground or piles shall be used. Foundations may be built upon mechanically compacted earth or fill material sub- ject to approval by the building official upon submittal of evidence that the proposed load will be adequately sup- ported. / ./1804.2.4 Differential settlement. Where footings are supported by soils of widely different bearing capacity, the allowable bearing values of the more yielding soil shall be reduced or special provisions shall be made in the design to prevent serious differential settlements. ./1804.2.5 Shifting or moving soils. When it is definitely known the top or subsoils are of a shifting or moving char- acter, all footings shall be carried to a sufficient depth to insure stability. The excavation around piers shall be back- filled with soils or materials which are not subject to such expansion or contraction. .....1'804.2.6 Groundwater table investigation. A subsurface soil investigation shall be performed to determine the pos- sibility of the groundwater table rising above the proposed elevation of the lowest floor when such floor is located below the finished ground level adjacent to the foundation for more than 75% of the perimeter of the building. Exception: A subsurface soil investigation shall not be required when either of the following conditions is sat- isfied: I. Waterproofing is provided in accordance with 1814.2. 2. Satisfactory data from adjacent areas is available which demonstrates that groundwater has not been a problem. -1'804.3 Expansive soils 1804.3.1 General. Footings or foundations for buildings and structures founded on expansive soils shall be designed in accordance with this section. As an alternative to special design, the soil may be removed in accordance with 1804.3.4 or stabilized in accordance with 1804.3.5. FLORIDA BUILDING CODE - BUILDING 1814.2.4 - 1815.4 1814.2.4 Wall and floor joints and penetrations shall be made water tight using approved methods and materials. 1814.2.5 Floor waterproofing shall consist of any materi- al approved for waterproofing in 1814.2.3, with joints lapped and sealed in accordance with the waterproofing manufacturer's recommendations. 1814.3 Dampproofing 1814.3.1 Wall surfaces to be dampproofed shall have all holes and recesses, including those resulting from removal of form ties, sealed with a bituminous or other approved material. 1814.3.2 Dampproofing shall be applied to the exterior surface of walls from a point 12 inches (305 mm) below the top of the lowest slab to not less than 6 inches (152 mm) above finish grade. .r 1814.3.3 Dampproofing applied beneath the floor slab , shall consist of 6 mil (0.15 mm) minimum polyethylene with joints lapped not less than 6 inches (152 mm) and taped, or other approved materials having a maximum perm rating of 0.5. Where installed below the finished walking surface, dampproofing shall consist of mopped- on bitumen, 4 mil (0.10 mm) minimum polyethylene, or other approved materials having a maximum perm rating of 0.5 [2.873 x 10-5 mg/(Pa . s . m2)], with joints lapped and sealed in accordance with the dampproofing manu- facturers recommendations. 1814.3.4 Wall dampproofing shall consist of one of the following systems: I. 3/s-inch (9.5 mm) portland cement parging with a lll6-inch (1.6 mm) bituminous coating 2. lis-inch (3.2 mm) bituminous coating 3. lis-inch (3.2 mm) cementitious coating 4. 'Is-inch (3.2 mm) surface bonding mortar 5. 40 mil (1.02 mm) acrylic latex coating 6. 11I6-inch (1.6 mm) bituminous coating over concrete 7. 6 mil (0.152 mm) polyethylene over 1/16 inch (1.6 mm) bituminous coating applied to masonry. 8. Acrylic modified cement base coating at a total min- imum thickness of 3 Ib per sq yd (1.6 kg/m2). 9. Any material approved for waterproofing in 1814.2.3. 1814.3.5 When dampproofing is required, perimeter drainage shall be provided in accordance with eiIher 1814.3.5.1 or 1814.3.5.2. The foundation perimeter drain shall have a minimum slope of 0.33 percent and discharge by gravity or mechanical means into an approved drainage system. Exception: Where a site is located in well-drained gravel or sand gravel mixture soils, perimeter drainage is not required. 18.20 1814.3.5.1 Method 1. A drain, consisting of gravel or crushed stone containing not more than 10% material that passes a No. 4 sieve, shall be placed around the perimeter of the foundation. The drain shall extend 12 inches (305 mm) minimum beyond the outside edge of the footing. The thickness shall be such that the bottom of the drain is not higher than the bottom of the base under the floor, and the top of the drain is not less than 12 inches (305 mm) above the top of the footing. The top of the gravel or crushed stone drain shall be cov- ered with an approved filter membrane material. 1814.3.5.2 Method 2. A drain tile or perforated pipe shall be placed around the perimeter of a foundation. The invert of the pipe or tile shall be no higher than the floor elevation. The top of joints or the top of perfora- tions shall be protected with an approved filter mem- brane material. The pipe or tile shall be placed on not less than 2 inches (51 mm) of gravel or crushed stone containing not more than 10 percent material that pass- es a No.4 sieve and covered with not less than 6 inch- es (152 nun) of the same material. The gravel or crushed stone shall extend 12 inches (305 mm) mini- mum beyond the outside edge of the footing. The top of the gravel or crushed stone shall be covered with an approved filter membrane. 1814.4 Backfilling. Backfill shall be placed in lifts and com- pacted in a manner which does not damage the waterproofing or dampproofing material, or the foundation wall. ( SECTION 1815 RETAINING WALLS -- 1815.1 General. Walls built to ret;;~"""or support the lateral pressure of earth or water or other superimposed loads shall be designe.d and constructed of masonry, concrete, steel sheet piling or other approved materials. 1815.2 Design. Retaining walls shall be designed to resist the design lateral soil loads in 1608.1, including both dead and live load surcharges to which such walls are subjected, and to ensure stability against overturning, sliding, excessive foun- dation pressure and water uplift. 1815.3 Hydrostatic pressure. Unless drainage is provided, the hydrostatic head of the water pressure shall be assumed to be equal to the height of the wall. 1815.4 Reinforced masonry retaining walls. Vertical rein- forcement for masonry retaining walls shall comply with Table 1815.4 or shall be designed in accordance with ACI 530lASCE 5rrMS 402. Masonry shall be fully grouted with a minimum fm of 1500 psi. Mortar for masonry shall be Type M or S and laid in running bond. The specified location of the reinforcement shall equal or exceed the effective depth dis- tance, d, noted in Table 1815.4 and shall be measured from the exposed side of the wall to the center of the vertical rein- forcement. Footings for reinforced masonry retaining walls shall be designed in accordance with ACI 318. \ FLORIDA BUILDING CODE - BUILDING I 1815.5 Segmental Retaining Walls. Segmental retaining walls shall be designed in accordance with NCMA Design Manual for Segmental Retaining Walls. SECTION 1816 TERMITE PROTECTION _ 1816.1 Termite Protection. Termite protection shall be pro- vided by registered termiticides or other approved methods of termite protection labeled for use as a preventative treat- ment to new construction. 1816.1.1 If soil treatment is used for subterranean termite prevention, the initial chemical soil treatment inside the foundation perimeter shall be done after all excavation, backfilling and compaction is complete. 1816.1.2 If soil treatment is used for subterranean termite prevention, soil area disturbed after initial chemical soil treatment shall be retreated with a chemical soil treatment, including spaces boxed or formed. 1815.5 - TABLE 1815.4 1816.1.3 If soil treatment is used for subterranean termite prevention, space in concrete floors boxed out or formed for the subsequent installation of plumbing traps, drains or any other purpose shall be created by using plastic or metal permanently placed forms of sufficient depth to eliminate any planned soil disturbance after initial chemi- cal soil treatment. 1816.1.4 If soil treatment is used for subterranean termite prevention, chemically treated soil shall be protected with a minimum 6 mil vapor retarder to protect against rainfall - dilution. If rainfall occurs before vapor retarder place- ment, retreatment is required. Any work, including place- ment of reinforcing steel, done after chemical treatment until the concrete floor is poured, shall be done in such manner as to avoid penetrating or distubing treated soil. 1816.1.5 If soil treatment is used for subterranean termite prevention, concrete overpour or mortar accumulated along the exterior foundation perimeter shall be removed prior to exterior chemical soil treatment, to enhance verti- cal penetration of the chemicals. TABLE 1815.4 REINFORCEMENT FOR MASONRY RETAINING WALLS. Nominal Wall Reinforcement size & spacing for equivalent fluid Wall depth, weight of soli, pcf (kN/m3). of: thickness, H.ft(m) In. (mm) 30 (4.7) 45 (7.1) 60 (9.4) 8 (203) 4.0 (1.2) #4 @ 64 in. #4 @ 40 in. #4 @ 32 in. 4.7 (1.4) #4 @ 40 in. #4 @ 24 in. #4 @ 16 in. 5.3 (1.6) #4 @ 24 in. #4 @ 16 in. #5 @ 16 in. 6.0 (1.8) #5 @ 24 in. #6@ 16in. #8 @ 16 in. 6.7 (2.0) #5@16in. #6 @ 8 in. = 10 (254) 4.0 (1.2) #4 @ 72 in. #4 @ 64 in. #4 @ 48 in. 4.7 (1.4) #4 @ 56 in. #4 @ 40 in. #4 @ 24 in. 5.3 (1.6) #4 @ 40 in. #4 @ 24 in. #4 @ 16 in. 6.0 (1.8) #4 @ 24 in. #4 @ 16 in. #5@16in. 6.7 (2.0) #4 @ 16 in. #5@I6in. #6 @ 16 in. 7.3 (2.2) #5 @ 24 in. #6 @ 16 in. #6 @ 8 ill. 8.0 (2.4) #5 @ 16 in. #6 @ 8 in. = 12 (305) 4.0 (1.2) #4 @ 72 in. #4 @ 72 in. #4 @ 64 in. 4.7(1.4) #4 @ 72 in. #4 @ 48 in. #4 @ 40 in. 5.3 (1.6) #4 @ 48 in. #4 @ 32 in. #4 @ 24 in. 6.0 (1.8) #4 @ 32 in. #4 @ 24 in. #4 @ 16 in. 6.7 (2.0) #4 @ 24 in. #4 @ 16 in. #5 @ 16 in. 7.3 (2.2) #4 @ 16 in. #5 @ 16 in. #6 @ 16 in. 8.0 (2.4) #5 @ 24 in. #5@16in. #7 @ 16 in. 8.7 (2.7) #5 @ 16 in. .#7 @ 16 in. #7 @ 8 in. 9.3 (2.8) #6@ 16in. #7 @ 8 in. = a based on fully grouted masonry; f 'm = 15(X) psi ( IOJ MPa); d = 5 in., 7 in. and 9 in. (127. 178 and 229 mm) for walllhickncsscs of 8, 10. and 12 in. (203.254. and 305 mm), respectively; level backfill!o top of wall. FLORIDA BUILDING CODE - BUILDING 18.21 Angle of Repose Fl. Building Code Section 1803.1.3 Finished Grade o 45 o 0 o 90 > ~ ~ > n == ~ ~ Z ~ ~ No Excavation Within 1 ft. of the angle of Repose Angle of Repose Fl. Building Code Section 1803.1.3 Finished Grade o 0 o o 45 90 Finished Grade No Excavation Within 1 ft. of the angle of Repose o 45 Point of violation. Wall must be extended by design above to allow backfill to maintain minimum 1 ft. above angle of repose o 45 Angle of Repose Fl. Building Code Section 1803 .1.3 o Building Foundation (typ) o 90 Retainer wall would be required when excavation within 1 ft. of the angle of repose Florida Building Code see.1803.1.3, 1815 and 1608.1. C:\dalamina\docs\words\angle of repose drawing 10_03_02 NOT TO SCALE