Res 318 1/27/1958I
RESOLUTION NO.
r
A RESOLUTION SETTING THE MINIMUM REQUIREMENTS FOR PAVEMENT IN THE
CITY OF WICHITA FALLS AND IN AREAS ADJACENT THERETO THAT EXPECT TO BE
ANNEXED TO SAID CITY.
BE IT RESOLVED BY THE BOARD OF ALDERMEN OF THE CITY OF WICHITA FALLS:
THAT from and after the date hereof all pavement in the'City of
Wichita Falls or in areas adjacent thereto that expect to be annexed to
the City in the future shall meet the following minimum requirements:
UTILITY TRENCHES: All utility trenches shall be back filled
with pneumatically tamped sand to a point three feet beyond the
curb lines. If the paving work is not to be done for six to eight
months after the completion of the utility lines, it is considered
safe to water tamp the sand back fill.
SUBGRADE: All plastic subgrade shall be stabilized for a
depth of six incheswith some suitable stabilizing admixture, or
material, to produce a subgrade that is stable.
FLEXIBLE BASE PAVEMENTS*. For strictly local use residential
streets, which in the future will not be likely to have heavy
traffic, the minimum pavement shall be 1L" of hot -mix asphalt
surface on a stable 51t flexible base. Thicker bases will be re-
quired on heavily traveled streets or thoroughfares to meet the
requirements of the Department of Public Works.
Base material shall be crushed conglomerate, or crushed lime-
stone, of uniform quality and gradation. The crushed conglomer-
ate shall have a minimum of 55% of the material held on a
mesh sieve and the soil binder shall not exceed ZS%, nor shall
the soil binder have a plasticity index greater than 10.
Crushed limestone shall conform to specification item Z15i- of
Texas Highway Department. Plasticity reduction may be obtained
by intimately mixing a suitable admixture with the base material.
CEMENT STABILIZED BASE PAVEMENT: On anticipated heavily
traveled streets, or in areas where seepage will injure flexible
bases, portland cement stabilization of the base material may be
required. Such stabilization shall be done in conformity to the
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CITY OF WICHITA FALLS
INTER- OFFICE MEMORANDUM
TO: H. A. Thomases
` FROM:
F. M. Rugeiey
SUBJECT: &P IFICATION FOR BASE KAT�-RIAAL
COMMENT:
DATE: Jan'tIary 24! 1958
Resolati.on , er 312 outlines a specification for flexible
base material which was designed primarily for crushed conglomerate*
We find that this specification would be difficult to meet if crushed
lime stone- were used f or base materials. It is nV reco endati on
that this resolution be amended to provide that a ashed lime stone
base material meet the requirements of Item 215A of Texas State
Highwa,,y Department specifications. Revised words for this clause
are being.,furashed the City Attorney, for thi preparation of. an
amendment charging the specifications„ `fear crushed llme . stone.