§ 10.02.02. Infrastructure Standards and County Inspections

A.

Road Construction.

1.

Materials. Streets shall include a stabilized subgrade, base and wearing surface in accordance with standards designated by the County Manager or designee and as shown in the applicant's approved typical sections.

2.

Utility Installation. After the clearing, grubbing, and grading has been completed within 6 inches of final subgrade of the roadway for a street , all underground work for the water mains, sanitary sewers, storm sewers, gas mains, telephone, electrical power conduits and appurtenances, and any other utility shall be installed across the width of the street to the sidewalk area, or provisions shall be made so that the roadway or right-of-way will not be disturbed by future utility installations. All underground improvements installed for the purpose of future service connections shall be properly capped and backfilled.

3.

Utility casings. All casings to be installed within the roadway section of a project must be located at a depth at least 6 inches below the bottom elevation of the roadway stabilized based course. All casings providing water service must extend to the intersection of the right-of-way line and the lot line . Unless approved by the County Manager or designee pursuant to the Collier County Utilities Standards and Procedures Ordinance 2004-31, as amended, all casings required for the complete service of underground utilities to the subdivision must be installed during the construction phase of the project. Any casing which must be placed after completion of the roadway stabilization and paving shall have its method of installation approved by the County Manager or designee.

4.

Subgrade and shoulders. All subgrade and shoulders shall be stabilized to a depth of 12 inches and to the full width as shown on the applicant's approved typical section drawing. The stabilized area must be free of muck, roots, and other objectionable material. The subgrade and shoulders must be stabilized and compacted to obtain the minimum limerock bearing ratio (LBR) of 40 LBR and at least 98 percent of maximum density as determined by AASHTO T180. If the bearing value of the natural soil is less than that specified, the subgrade and shoulders must be stabilized in accordance with section 160 of the Florida Department of Transportation Standard Specifications for Road and Bridge Construction, as amended. The construction of the subgrade and shoulders must generally conform to section 160 of the Florida Department of Transportation Standard Specifications for Road and Bridge Construction, as amended.

5.

Base. The base shall be compacted limerock constructed to the thickness specified in the applicant's approved typical section drawing for the class and type of road to be constructed, and shall be built to the specified width and centered on the subgrade. Limerock used for the base must meet the standard specifications for grade no. 2 limerock and must be compacted to obtain at least 98 percent maximum density as determined by AASHTO T180. Construction and materials of the base must conform to sections 200 and 911 of Florida Department of Transportation Standard Specifications for Road and Bridge Construction, as amended. Alternate base courses that meet FDOT specifications may be considered and approved by the County Manager or designee.

6.

Prime. The base must be primed with type RC-70 bituminous material of SS-1 (asphalt emulsion) and shall comply with section 300 of the Standard Florida Department of Transportation Specifications for Road and Bridge Construction, as amended.

7.

Surface course. The surface course thickness and width shall be as specified in the applicant's approved typical section drawings. The processing of the mixture and construction of the surface course must comply with sections 320, 330, and 334 of the Standard Florida Department of Transportation Specifications for Road and Bridge Construction, as amended.

8.

Pavement striping. All work shall be in accordance with section 711 of the Florida Department of Transportation Standard Specifications for Road and Bridge Construction, as amended.

9.

Grass. All areas within the right-of-way not receiving the surface course must receive seed, fertilizer, and mulch in accordance with sections 570, 981, 982 and 983 of the Standard Florida Department of Transportation Specifications for Road and Bridge Construction, as amended. Where sod is specified by the County Manager or designee for erosion control, it shall be installed prior to preliminary acceptance of the roadway.

10.

Construction in muck or clay areas. The design of streets proposed in excessive muck areas shall be considered on an individual basis and may, where so directed by the County Manager or designee, require the use of under drains. Alternate methods of construction may be considered by the County Manager or designee based on a design study, containing soil testing data, and recommendations prepared by a geotechnical engineer licensed to practice in the State of Florida and supported by the applicant's professional engineer.

11.

Alternative types of pavement, base, and subgrade. Alternate types of pavement, base, and subgrade determined by the County Manager or designee to be equivalent to those specified in this section may be approved. Application for such approval must be accompanied by written data, calculations, and analysis which show, by generally accepted engineering principles, that the alternate types are equal or superior to those specified.

B.

Road Maintenance. The applicant shall be responsible for maintenance of the roads for the period between preliminary and final acceptance. This includes workmanship, materials, and all repairs and maintenance.

C.

Pavement Samples, Testing, and Inspections by the County Manager or designee.

1.

Pavement samples. The developer shall provide core samples of both the base course and surface course of the completed public and private roadways prior to preliminary approval. The core samples shall be taken at a maximum of 300 linear feet intervals and arrangements shall be made to immediately replace the removed core materials to conform to the specifications to the line and grade of the immediate surroundings' pavement surface. The core samples shall be taken by an approved testing laboratory and/or professional engineer and certified as to location and thickness measured.

a.

A tolerance of one-quarter inch for pavement surface and one-half inch for base course may be accepted. Any deviations more than these tolerances shall result in withholding preliminary acceptance until such time that the pavement is brought up to county standards.

2.

Testing. The applicant must have the subgrade and shoulders tested for compaction and limerock bearing ratio (LBR) at intervals set forth in Florida Department of Transportation Standard Specifications for Road and Bridge Construction, as amended, or as directed by the County Manager or designee. The subgrade and base, as specified in LDC section 10.02.02 A.4. and A.5, shall be tested for compaction by a certified engineering testing laboratory. Prior to acceptance by the county, a copy of the test results along with a statement of compliance issued by the testing laboratory, must be furnished to the County Manager or designee.

3.

Inspection by the County Manager or designee. During construction, a field inspection shall be made by the County Manager or designee. It is the applicant's responsibility to provide written notice to the County Manager or designee when construction is ready for inspection.

(Ord. No. 13-56, § 3.JJ)

Editor's note

Ord. No. 13-56, § 3.JJ, adopted September 24, 2013, amended section 10.02.02 in its entirety to read as herein set out. Former section 10.02.02, pertained to submittal requirements for all applications. See Land Development Ordinance Disposition Table for complete derivation.