IFB_26_013_DN_Addendum_No._1_-_Drawing_108.pdf

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GRAPHIC SCALE (FT)

20' 40'

NORTH

B1 GRADING AND DRAINAGE PLAN

A3 SHEET LEGEND AND KEYED NOTESA1 SHEET NOTES A4 KEY PLAN

GRADING AND

DRAINAGE PLAN

ALB

JCW

ALB

GRADING NOTES:

1. PRIOR TO DISTURBANCE OF EXISTING GRADE, THE CONTRACTOR SHALL VERIFY THE

EXISTING TOPOGRAPHIC SURVEY.

2. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO PROVIDE A FINISHED GRADE

SURFACE FREE OF LOCALIZED PONDING OR DEPRESSIONAL AREAS. THE ENGINEER MAY

ORDER SELECTIVE GRADING IN AREAS WHERE EXISTING GRADES DIFFER FROM THOSE

SHOWN IN THE TOPOGRAPHIC SURVEY, IN ORDER TO PROVIDE A CONSISTENT WELL

DRAINED SURFACE. THESE AREAS OF SELECTIVE GRADING SHALL BE PAID IN

ACCORDANCE WITH ITEM P-152, UNCLASSIFIED EXCAVATION.

3. FOR PROPOSED WORK ITEMS (ELECTRICAL, DRAINAGE, ETC.) OUTSIDE OF THE GRADING

LIMITS SHOWN, RESTORATION SHALL BE INCIDENTAL TO THE LINE ITEM ASSOCIATED WITH

THE CORRESPONDING WORK. ALL AREAS SHALL BE RESTORED TO EQUAL OR BETTER

THAN EXISTING CONDITIONS.

4. GRADING SECTIONS SHOWN ON THE PLANS ARE GENERALLY REPRESENTATIVE OF THE

PROPOSED GRADING SURFACE. THE CONTRACTOR SHALL MAKE THE NECESSARY

TRANSITIONS AS SHOWN BY THE CONTOURS, SECTIONS, AND GRADE CHARTS. ALL

TRANSITIONS AND TRANSITIONS TO EXISTING GRADE TIE-IN POINTS SHALL BE SMOOTH

AND FREE OF ABRUPT CHANGES IN GRADE.

5. THE CONTRACTOR SHALL RECEIVE A TRIANGULAR IRREGULAR NETWORK (TIN) SURFACE

TO ASSIST WITH GRADING OPERATIONS. THE CAD FILE CONTAINING THE TIN SURFACE

SHALL CONTAIN SPOT ELEVATIONS, BREAKLINES, AND SURFACE GRADIENTS. IT IS THE

CONTRACTOR'S RESPONSIBILITY TO PROVIDE A FINISH SURFACE IN ACCORDANCE WITH

THE PLANS AND SPECIFICATIONS. THE CONTRACTOR SHALL BE EQUIPPED WITH THE

ABILITY TO UTILIZE MACHINE-CONTROL SYSTEMS TO EFFICIENTLY PERFORM

EARTHWORK IN ACCORDANCE WITH THE PLANS AND SPECIFICATIONS. THE CONTRACTOR

SHALL NOTIFY THE ENGINEER OF RECORD PRIOR TO CONSTRUCTION IF THERE IS ANY

UNDERGROUND UTILITY CONFLICT THAT INTERFERES WITH THE PROPOSED GRADING

PLANS.

6. THE CONTRACTOR SHALL BE REQUIRED TO PROVIDE INTERMEDIATE AS-BUILT SURVEYS

OF THE INDICATED PLAN PAVEMENT AREAS AFTER THE SUBGRADE HAS BEEN

COMPACTED AND ACCEPTED IN ACCORDANCE WITH FAA SPECIFICATION P-152, AND

AFTER THE FINAL CONCRETE PAVEMENT INSTALLATION IN ADDITION TO THE REQUIRED

PROJECT DOCUMENTATION AND DELIVERABLES.

7. ALL AREAS OUTSIDE OF THE PROPOSED GRADING LIMITS THAT ARE IMPACTED,

DISTURBED, EXCAVATED, OR FILLED SHALL BE RESTORED BY THE CONTRACTOR AT NO

ADDITIONAL COST TO THE OWNER.

RESTORATION NOTES

3. ALL AREAS TO BE EXCAVATED SHALL BE STRIPPED OF VEGETATION AND TOPSOIL IN

ACCORDANCE WITH SECTION P-152-2.2 OF THE CONTRACT SPECIFICATIONS. STRIPPING

SHALL BE CONSIDERED A NECESSARY AND INCIDENTAL ITEM OF THE WORK INVOLVED

AND SHALL NOT BE MEASURED SEPARATELY FOR PAYMENT.

4. AREAS OUTSIDE OF THE PROJECT LIMITS THAT ARE DISTURBED BY THE CONTRACTORS

WORK OPERATIONS SHALL BE REPAIRED/REGRADED/RESTORED BY THE CONTRACTOR AT

NO ADDITIONAL COST TO THE OWNER. ALL DISTURBED AREAS OUTSIDE OF THE PROJECT

GRADING LIMITS SHALL BE RESTORED EQUAL TO OR GREATER THAN THE EXISTING

CONDITION REGARDLESS OF MATERIAL. ALL ASSOCIATED COSTS SHALL BE BORNE BY THE

CONTRACTOR.

5. ALL GRADING AREAS SHALL BE RESTORED WITH SOD, IN ACCORDANCE WITH ITEM T-904.

ALL AREAS OF SODDING SHALL BE SMOOTH AND FREE OF RUTTING AT THE COMPLETION

OF THE PROJECT.

6. IT SHALL BE THE CONTRACTORS RESPONSIBILITY TO ENSURE ADEQUATE GROWTH OF

GRASS FOR ALL AREAS RESTORED WITH SOD. CONTRACTOR SHALL WATER AND MAINTAIN

THE RESTORATION AREA.

7. SOD THAT DIES DUE TO INSUFFICIENT WATERING SHALL BE REMOVED AND REPLACED

WITH NEW SOD AT NO ADDITIONAL COST TO THE OWNER.

PROPOSED MAJOR CONTOURSX.XX'

SWALE CENTERLINE, (TYP.)

GRADING BREAKLINE, (TYP.)

PROPOSED MINOR

CONTOURSX.XX'

KEYED NOTES:

1. EXISTING TOPOGRAPHIC SURFACE CONTOURS. A COPY OF THE EXISTING TOPOGRAPHIC

SURFACE SHALL BE PROVIDED TO THE CONTRACTOR FOR REFERENCE DURING

CONSTRUCTION OPERATIONS, (TYP.)

2. PROPOSED GRADING LIMITS, TIE INTO EXISTING GRADE, (TYP.)

3. EXISTING UTILITY STRUCTURE TO BE PROTECTED.

4. CONCRETE TO ASPHALT KEYING DETAIL, A1/109.

5. YELLOW JACKET GEOSOLUTIONS INLET PROTECTION OR APPROVED EQUIVALENT, ITEM

C-102 STORM DRAIN INLET PROTECTION.

6. CONTRACTOR SHALL PROTECT THE EXISTING DRAINAGE INFRASTRUCTURE IN PLACE

DURING GRADING OPERATIONS. FOR EXISTING DRAINAGE STRUCTURE ELEVATION,

INVERTS AND SLOPES PLEASE REFER TO SHEET 105.

ATTENTION:

THIS DOCUMENT CONTAINS PRIVILEGED AND PROPRIETARY

INFORMATION, ALL OF WHICH IS EXPRESSLY PROVIDED BY AVCON, INC.,

FOR USE BY THE INTENDED RECIPIENT, AND FOR A SPECIFIC PURPOSE.

WITHOUT THE EXPRESS WRITTEN CONSENT OF AVCON, INC. ANY

DISTRIBUTION, REPRODUCTION, OR OTHER USE OF THIS DOCUMENT, IN

WHOLE OR IN PART, IS STRICTLY PROHIBITED

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A M

LEESBURG INTERNATIONAL

AIRPORT

LEESBURG, FLORIDA

COMMERCIAL HANGAR

BUILDING

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X2523602_CG SERIES

PROFESSIONAL SEAL

CLIENT LOGO

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CADD:

CITY IFB NO. 26-011-HG

DRAWING

DATE:

APPROVED BY:

CHECKED BY:

DRAWN BY:

DESIGNED BY:

MARCH 2026

DJN

SCALE (US SVY FT): GRAPHIC

NO. DATE BY DESCRIPTION

REVISIONS:

AVCON, INC.

ENGINEERS & PLANNERS

5555 E. MICHIGAN ST., SUITE 200 - ORLANDO, FL 32822-2779

OFFICE: (407) 599-1122 - FAX: (407) 599-1133

CORPORATE CERTIFICATE OF AUTHORIZATION NUMBER: 5057

www.avconinc.com

Printed copies of this document are not considered signed and sealed and the signature must be verified on any electronic copies.

This item has been digitally signed and sealed by:

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AVCON PROJECT NO. 2025.236.02

AIRPORT BLVD

AIRPORT BLVD

EXISTING TAXILANE T-1

EXISTIN

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TAXILAN

E T-6

EXISTING TURF AREA

EXISTING

DRY

RETENTION

POND AREA

EXISTING FENCE LINE, (TYP.)

EXISTIN

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TAXILAN

E T-5

EXISTING HANGAR

EXISTIN

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TAXILAN

E T-5

PROPOSED 4-UNIT COMMERCIAL HANGAR

FFE: 80.8'

5|6 5|6

5|65|65|6

5|6

5|6

C

B1

N: 1634478.2941 E: 397720.6462

ELEV: 77.75'

N: 1634406.2315 E: 397694.7032

ELEV: 76.50'

N: 1634500.7671 E: 397697.3798

ELEV: 80.60'

N: 1634436.4374 E: 397669.7811

ELEV: 80.60'

N: 1634424.6238 E:397659.2722

ELEV: 77.95'

N:1634519.2479 E: 397438.7132

ELEV: 79.95'

N: 1634533.0328 E: 397444.6272

ELEV: 80.70'

N: 1634535.0042 E: 397440.0322

ELEV: 80.60'

N: 1634478.2941 E: 397720.6462

ELEV: 80.60'

N: 1634438.4087 E: 397665.1862

ELEV: 80.70'

N: 1634502.6079 E: 397690.5526

ELEV: 80.67'

N: 1634593.4199 E: 397481.4158

ELEV: 80.78'

26-013-DN

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1 3-30-2026 DJN BID ADDENDUM #1

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