2020-06-04_PERMIT FILE - C1981008 ‎(56)‎

• Permit No: C1981008
• IBM Index Class Name: Permit File
• Doc Date: 6/4/2020
• Doc Name: Road and Structure Agreements and Letter
• Section_Exhibit Name: Section 2.05.3‎(3)‎ Attachment 2.05.3‎(3)‎-8
• Media Type: D
• Archive: No

.low - Volume Road Design
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Step 4: Enter the seasonal 18-kip ESAL traffic in
Column 4 of Tas!c 4.4. Assuming that truck traffic is
distributed evenly throughout the year, the !cngths of
tic seasons should be used to proportion the total
?raiec.ed I8 - kip ESAL traffic to each season. If the
rozd is icad zoned (restric:ed) during ccr- sit cdtseal
per'ods, the total tra:rte Way be distributed only
among tbose seasons when trade traffic is allowed.
(T otal traffic of 21.000 18-kip ESALapplications and
a seasonal Patter» corresponding to U.S. Climatic
Re3don 111: sti'as and in t'•t exar;tgfe in Table 4.5.)
Step 5: Within each of the four taiiss*,es, estiasar,e the
a:dowablt 1 ESAL ttzt3tc for each of slit four
seasons taxing the Sari mab;; ty-bas d camogmph is
Faure 4 and ewer in Calngnn 3. if the tesilj=
�3ci�s bf tlse roasa Deal sal! tdttrizag tYs frt�t season)
is saint that the al vvs bL_ sr.!fiic e.'St& t'l3L tapper
firm: of ::L'c 3o- 09MPb- assume a pzacd ! valne; of
;!M. 18-k:p ESAL_
I/ -79
D = B + (0.5 x GL)
where
GL = total estimated aggregate (gravel) loss (
incises) over the psrfzrManca period.
If, for example. the total estimated gravel loss was 2
inehs the average base thicknen M - was 10
inches. the �'esi gut thickness Of the aggregate base layer
Should be
D
Step 10: The final step of the design cl: art procedure
for aggrnate-s+_rfaced roads is to convert a portion of
the aggregate bass layer thicimess to an equivalent
thickness of subbase material,. This is auomplishcd - ;-
ss'ith the aid of Fig:.rc 4.5. Select the lnal - .t=' >_
'.Li cica.�s c+C..red,DBS (5 int:'s.. - is used IfI � �•pk}.: > K '=
Draw s &t to •.lee cs:isaatrsi .tat;- dQlns. of the.s ra3 e - t -
a bk a ZE Al.. --:53r s u for
..�+. =iR�I3 ri�i� +.� '�..J - � - a, yyAR �..GJi.I i.L ��
LCk• ' Of LLS . ��C' 3 Sea g2C3" GL t- a allawable
s 113 up?= 9Wk of !be nomograph,
asp. use a 07L � valet= of 600,OW 13 ESAL
Sup 7: Ccttrsttsc the M=soazl damag values in
each c f zhe four%eDes for die seaiuZ7Vi1hy criteria by
ds i&n the Pr3eczed seasonal traffic (Column 4) by
the z5mcs3ble- ssaftic in that season (Coluum S)_ Enter
L%= seasonal d azaP vslx=iu Column 6 afTable 4.4
c=rspondwiS to sexvi =billxy erk ria. Next, follow
three same iurorsioas for xurdng cn Lr, divide
Coltaaa 4 by Calm= 7 and enter is Coln mn 8..
Step & Compote %c total daatage for bode the
ser istabsi1ityandtindn9adtct abyaddingtheseasonal
damages. Wtseat:h's is aaoMPfi `ned forali four tables
(corresponding to the four trial bane th a
graph of total damage versus b2sc layer thickness
s_hou!d be prepared. T avezagt beer layer thickness.
D... r`eT.&kZd is dose -rs airicd by intt-ccpoiadng in this
graph for a tats! darnaee equal to IA Figure 4.4
P a• idea s.-s cx -LwP» in which_ the design is ea:ztroiled
fir the sr :- vilitrertc:ia; D is equ21 M 10 : =e :e,.
r�s • +: 'f basr 12: ..�.:ci. ^..ss cite -.^.:h ire t ^e
:ss r.__ G. i.oac� r,. , i ^rc •are
'he drain thickne i� ,
ecter-
rz: uxfrg the ; a ;uation:
f I 'A U71 'oN
Revised March 2010 (PR06)
aS'3 1� lam' t w.. . �."r.!
'moss and.tb:04 - ma?:n
• . - r•- a......= Yd(a.ir ,.�1Te2��5� .�: • �^�. � • � 1 -�� Y � :� •, S
~ .sn . the -_ :: = ie "M1 '
P r . "oettzt�tc• :tsse .z. SQi�i. :- suisi�se
4.2 DESIGN CATALOG :
— bic purpose of this Se ctic ^ is to prgvide the user
with a means for identifying reasonable pavement
stzuctt:ral designs suitable for low - volume roads. The
catalog of designs presented here coven aggregate.
surfaced roads zs well as both flexible and rigid
Pavements. It is important to note, however; that
although the structural designs presorted represent
Precise solutions using the design procedure described
in the previous section, they are based on a unique set .
of assumptions relative to design requirements and
tnvirontacntalconditions. The fol1owi7 :gspedfscazsvmp.
lions apply to all three 4'pcs of structural designs
toruide: ed:
(1) All designs are based on the structural
requirrt rent for one perfortranc.- period,
rera:dlcss of the ti,,.e intsnal. The r2nFe of
tear::: l:rc!s for the , !cxib!c and tir!d raNe.
T.'7t .: :arena ii horn eez S0.v00 sr.Y U.00.0A)
tS -rto iS :�l, ar ! ;cations. Tie alio��az+ ;e
ranrc c: rc!,2u%-z traffic for acgreeatc-
sunacea road dcsi r. is be :wcer. 10,000 a
100.00 IS -clip ESAI_ applications. ..d
JUT 'uoiivim ssw S12RJ U121S2a
Attachment 2.05.3(3) -8 -17
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