§ 107-36. Streets.

All streets, except those approved as private drives, shall be irrevocably dedicated, in writing, by the developer to the Township of Lawrence immediately on completion and acceptance of construction. Such streets shall be graded to the elevations and dimensions shown on the plans, profiles, and cross sections submitted by the developer for final plan review, and as approved by the Township Supervisors.

A. 

Local street construction. All Township streets shown on the approved final plan shall be constructed in accordance with the specifications for street construction of the state and Lawrence Township.

(1) 

Preparation of subgrade. The subgrade shall be formed by shaping the graded roadway surface to the approved profile. The surface shall be brought to a firm, thoroughly compacted condition for the width of the base course by rolling with a power roller. Any soft or unsuitable material shall be removed and replaced with suitable material.

(2) 

Installation of cartway. Installation of the cartway by the developer shall comply with PennDOT 408 Construction Specifications unless otherwise approved by the Board of Township Supervisors.

(a) 

CP-2 surfacing.

[1] 

Course aggregate. The first course shall conform to Pennsylvania Department of Transportation standards for No. 4 aggregate and shall be graded gravel, crushed gravel, crushed stone, or crushed slag, meeting the approval of the Township. This shall be compacted to a four-inch layer.

[2] 

Top course. The top course shall consist of granulated slag or graded gravel equivalent to Pennsylvania Department of Transportation standards for No. 2-A aggregate, spread and compacted into a four-inch layer. The depth after final compaction shall be as indicated on the approved plans and the surface shall be brought to a crown.

[3] 

Surface course. This is a standard CP-2 surface course with initial primer and a No. 2-B stone dragged and rolled as applied; then three successive layers of No. 1-B stone, and tar applied to build up the appropriate tar-and-chip surface.

(b) 

Bituminous surfacing.

[1] 

Base course. The base course shall consist of a layer of hot-mixed, bituminous, concrete base course BCBC installed according to PennDOT Specifications, 408. This shall be compacted by an approved power roller to a three-inch layer.

[2] 

Surface course. This surface course shall consist of a layer of one of the following: 1D-2, FB-1, or FB-2 mixed and installed according to PennDOT specifications, Form 408. This shall be compacted to a one-inch layer. If the base course has deteriorated prior to the installation of surfacing, it shall be brought to a suitable condition prior to laying the surface course.

B. 

Collector and major street construction. Specifications for the construction of collector and major streets shall be established by the Board of Township Supervisors after consultation with the Pennsylvania Department of Transportation.