EFFECTIVE MARCH 01, 2000
Introduction & Purpose
A. The following standards shall govern, guide and control all engineering involved in planning, constructing, modifying or extending any: road or street located in McCracken County.
B. The owner, developer, or his agent, and/or contractor, shall keep himself fully informed of current state, county laws, ordinances, resolutions, or regulations which in any manner affect the development or work contemplated. Strict compliance with these standards is required, in order to insure the orderly expansion of roads to the highest practical standards with a maximum efficiency for the greatest public benefit.
Inspection, Compliance and Acceptance
Inspection
A. Any improvement constructed to County standards must be inspected during construction by a representative of the County Engineer.
B. The contractor shall request an inspection during construction by giving a 24-hour working day notice prior to constructing, modifying, or extending any road or street in McCracken County. Failure to notify may result in non-acceptance of improvement.
C. There shall be a fifty (50) dollar/per lot inspection fee. This fee shall be paid to the McCracken County Fiscal Court, prior to final inspection.
Compliance
A. All material and workmanship that is to become a permanent part of any improvement covered by these standards shall conform to the requirements for the particular material or workmanship as set forth in these standards. The contractors or developers shall supply any and all certificates of compliance, certified test results, or shall perform tests as required to assure the County that the material being incorporated into the work has met the requirement specified.
MINIMUM REQUIREMENTS
RIGHT-OF- WAY WIDTHS
A. MINOR STREETS - Curb and gutter construction, less than 500' in length and physically blocked from future extension: 40' wide
B. Standard Subdivision, residential streets: 50' wide
EARTHWORK
A. CLEARING AND GRUBBING - To prepare the site for road construction, the roadway area should be stripped of trees, topsoil, large roots, old unsuitable fill, organic or soft soil. Under no circumstances shall the debris from the cleaning operation be permitted for fill.
B. BACKFILLING EXCAVATED AREAS - Backfilling excavated areas shall be accomplished using clean materials of approvable quality determined by the County Engineer or his designee. Backfill areas shall be placed in one (1) foot lifts and each lift compacted to 95% maximum density. Compaction tests shall be conducted every 500' of backfilled roadway. The costs of all testing will be assumed by the County.
C. FILL - All fill below roadways shall be placed in six (6) inch lifts, and each lift compacted to 95% maximum density. Compaction tests shall be conducted every 500' of roadway fill area. The costs of all testing will be assumed by the County.
SUBGRADE
A. Subgrade materials shall be that of the backfill material. The material shall be free of large rock, wood, roots, and other unsuitable materials, and shall be of a quality acceptable to the County Engineer or his designee. The subgrade shall be sloped to drain and be evaluated by the County Engineer or his designee prior to placement of aggregate base.
BASE COURSE
A. All base course material shall be one of the below listed alternates:
1. Six (6) inch of bank gravel with a four (4) inch DGA cap.
Or
2. Eight (8) inches of DGA
B. The base course shall be placed in no greater than six (6) inch thick lifts. The lifts shall be compacted to 95% maximum density. Compaction test shall be conducted every 500 feet of roadway. The cost of all testing will be assumed by the County.
PAVING
A. Prior to any paving operations, the County Engineer or his designee shall inspect and proof roll the compacted base course. Paving operation shall not begin until approval to do so is obtained from the County Engineer or his designee.
B. THICKNESS OF PAVEMENT - No deviations may be permitted on the following minimum paving thicknesses.
1. Two (2) inches of compacted Class I Base with One (1) inch of Compacted Class I Surface.
All asphaltic concrete roads shall be cored every 200 feet or at least three (3) cores, and the core holes filled with concrete upon completion of test. The compacted asphalt must be a minimum of three (3) inches thick and have a compaction no less than 95% of laboratory maximum density. The cost of all testing will be assumed by the County.
Failure to comply with thickness and density shall result in non-acceptance by the County.
SHOULDERS
A. Shoulders shall be at least six (6) feet wide, grass surfaced and there shall be less than a two (2) inch drop-off from the pavement edge to the shoulder.
CURB AND GUTTER
A. Curb and gutter material shall be Portland Cement Concrete with a minimum structural strength of 3500 pounds per square inch and shall conform to Kentucky Transportation Cabinet Standard Specifications for road and bridge construction.
RESTORATION
A. Upon completion of road construction, the area from back of curb or pavement to the right of way line shall be graded to a smooth, attractive appearance and seeded, mulched or hydro seeded.
DRAINAGE
A. Drainage plans shall be submitted to the County Engineer or his designee. Drainage work shall not commence until approval is given by the County Engineer or his designee. A ten (10) year return period shall be used for design work.
OCCUPANCY OF LOTS
A. Prior to acceptance of any development’s roadways into the McCracken County Road System, at least 25% of the development’s lots shall have started construction of the lot’s principal structure, or at least one (1) year past final paving, whichever occurs first.
ROAD BONDING AND ACCEPTANCE
A. All roads to be dedicated must submit a road bond using the McCracken County Road Department Standard Bond Form. The amount of bond shall be set by the McCracken County Fiscal Court.
B. Prior to expiration of the above bond and prior to County acceptance, the County will inspect and require any and all damage to the roadway be repaired. Failure to repair roads will result in the County making a claim on the bond for roadway repair.
ACCEPTANCE
A. Prior to final acceptance by the County of any improvements constructed in compliance with these standards, the following requirements shall be completed.
a. The Contractor shall request a final inspection by the County Engineer or his designee by giving a 24-hour working day notice.
b. Any deficiencies noted during the final inspection shall be corrected.
c. The Consulting Engineer shall prepare a complete and accurate reproducible set of “As Built” plans, when so required by the County Engineer. These plans shall be signed by both the Consulting Engineer and the County Engineer. These “As Built” plans are to be filed in the office of the County Engineer as a permanent County record.
When all of the above requirements have been executed; the County Engineer, by letter will inform the developer that the improvements are ready for acceptance by the County as completed.
Signed by Judge/Executive Orazine February 28, 2000
McCracken County Judge/Executive Court Order Date
(Ord. passed 11-27-2017)