City Council Agenda Packet 04-11-1977AGENDA
REGULAR MEETING
MONTICELLO CITY COUNCIL
April 11, 1977 - 7:30 P.M.
Mayor: Con Johnson
Councilmen: Arve Grimsmo, Dan Blonigen
Stanley Hall, Gene Walters
Meeting to be taped.
,/Citizen Comments.
J. Consideration of Final Approval - Roden Acres.
W2. Consideration of Trailer/Camper Parking Lot for
Municipal Liquor Store.
�. Consideration of Additional Landscaping at Municipal
Liquor Store.
tf3. Consideration oV Park Improvements.
�.
Consideration of Landscaping and Parking; Lot - Maintenance
I Building.
Rcvi ew of Street. Report.
-7. Approval of minutes.
�. Unfinished bumineu. M�
Vel. New M:rinema.
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AGENDA SUPPLEMENT
Agenda Item 1. Consideration of Final. Approval - Roden Acres.
Mr. Gregory Roden is submitting his 568 acre plat
to the city council for final_ approval. The plat
has been previously submitted and approved in pre-
liminary form to the planning commission and city
council .
Mr. Roden's plat consists of five lots, all of
which border Otter Crock to the south and River
Street to the north (see enclosed map).
All fees, including the 10% park dedication fee,
have been paid. Since all ordinances have been
met and Pecs paid :I would recommend approval, of
this plat.
POSS30LE ACTION: Consideration of approva of
Final plat.
REFERENCES: Copy of plat available at City Hall,
Enclosed Map.
Agenda Item 2. Consideration nP Trat.l.er/Camper Pnrkine Lot: for
Municipal Liquor Store.
MonLicel.lo's new oPP sale liquor store currently
has parking spaces provided for thirty (30) vehicles.
Usually this is ndequato, although the liquor store
manager has indicated there have been times on
summer weekend nights and just prior to Christmas
and New Ycnrs that parking has been a problem.
However, other parking problems Ihnve occurred as a
result nP campers, !"go trucks and vehicles p0l.i.ng
trailers. Sometimes these units will Lake up as
many as five spaces and will disrupt the .Intended
parking patcorn of the existing lot•. Additionally,
there is Cho unknown Pnctcr of how m ny units of
this type do not stop at all bernuse of Clio lack of
snPPMi.ent spare aval.lable. As a result, of this
problem, the, Pensi.blA i.t.y and cost of nddAM a park -
Ing area for these "nits has boon reviewed by Mnrk
Irmiter, Mike Rajnln, and myself.
From feasi.bi-lity standpoint, four possible areas
were reviewed and advantages and disadvantages are
listed below:
WEST SIDE OF STORK (REAR)
Advantage
1. Cost would be m:i.nimal, as exi.st.i.ng
rear lot could be nt:LHzed and s1dewalk
added for access to front door.
D.i.sadvan Lagos
I. Distance from front door.
2. Possi.bl.c dismption of delAvcHes to
rear entrance.
3. Customers walki-ng on grass.
4. V.is.i.bi.l.f.ty of lot, not too good from
II.ighway #25.
EAST S1DIi 017 S'1'ORIi (FRONT) Immodintel.y cast of
cx:i.stJ.ng lot towards Ili.9liway #25.
Ad van to ges
I. Good v.i.s.i.bi..liLy of l.ot.
2. D.i-stance to front door.
Disadvantages
I. Aest;hcti.c appearance of s:i.tc would be
dl.m.inished as vi.ewect from Ili.ghway #25.
2. Separate accesses would be nc(lessar-y of(?
S.i.xth and Fifth st.rects to segregate this
lot; from existing lot.
SOUTH S:I:DIi OF S111ORIi (Towards 81-xth Street)
Ad van 1;a ge
1. Gond v,i sl i I I Ly i'rmn 11 I ghway 25
D.i.sad va n to ges
I. Disruption of draintAge pattern.
2. F.11.1 nroded.
3. Ordinnnoo rcqu.i.res parking lot. to be
5 fent, from Int; :lines. and .it, would bo n
"tAght; squeeie" to fit; in a 24-26 foot
w1cle lot.
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NORT11 SIDE OF STORE. (Towards Fifth Street)
Advantages
1. Would not destroy aesthetic appearance
of store from Ilighway 25 to any great
extent.
2. Cost of improvement would be less expensive
than adding parking lotto cast or south.
Disadvantages
1. Di -stance from front door.
2. Visibility not too great from Highway 25.
In summary, each one of the sites has some dis-
advantages and a fifth alternative would be to do
nothing and this should certainly be considered.
IIOweVel', aur recommendation would be to add a park-
ing lot on the north side towards Fifth Street'.
Cost of such a .Lot providing space for 4-5 units
would be about $S50 including directional, signs
indicating its intended use for campers and trailers.
Cost of adding a parking lot to the cast or south would
be sl..i.ghti.y more or about $1000 to $1200. Cost of
having trailers park in rear and adding sidewalk
on one side wou.l.d be about $500.
It would seem that a parking lot for tral.lers and
campers would warrant the added cost of such a lot
sLnce the location of the liquor store is conducive
A' to this type of trade.
4 POSSIBLE AC'T'ION: Consideration of parking lot for
\
VVV Liquor Store.
Agenda Item 3. Consi.derati.on of Addi.tionnl Landscaping nt. Mnn.ic.ival
I..i rplor Store.
Pursuant to the enunei.l.'s r1_qucst, the question of
add.it.iona.l .landscaping nt 0113 liquor store was rev.i_ewed
by Mark Irmit.er, Miko Rajah and myself.
Our recommendation world be to sod all areas (except
to the rear) that; aro not currently developed and
t;o be dr_velopcd (agenda .item 2) as parking lots.
Sod was recommended versus seeding .in that LIM cost
of sodding theso areas, approximately $1550, is only
about; $500 more than scoding. In .light; of thr.
addi.t;ional care necessary far surd and gr0w0l ride it
wnnld seem that; the nddit.innnl $500 would be well
spent.
-3-
Additionally, we would recommend that $500 be
authorized for planting trees and shrubbery.
Initially, the liquor store bid for this item in-
cluded a $1000 allowance for landscaping of which
$750 was spent. It is intended that the shrubbery
would be put in the area by the sign and trees be
O� placed on the sides of the liquor store bordering
`tl the parking lot. Reasoning for shrubs in the front
arca along Highway 25 instead of trees is to main tai
PS good visibility from Highway 25.
fff POSSIBLE ACTION: Consideration of additional lan -
5 -pppy scaping for the liquor store.
NOTE: Of the original $2003000 Revenue Bond for
oA 7 the liquor store, $3900 was deducted immediately f r
bond discount and liquor store to date cost $185, 00 .
]caving balance of approximately $11,000 .in the
construction fund. -miff
V
Agenda Item 4. Consideration of Park Improvements.
Pursuant to the council's request, Mike Rajal,a ai
myself have viewed the parks for additional are
to be sodded or seeded along with other possible
park improvements. Enclosed, ploase find a list
of improvements for possible consideration.
Budget for 1977 for capital. outlay and improvements
is as follows:
Sprinkler System
$ 7,000
Hillcrest ]'ark
2,000
Mower
500
Unallocated
1 jum
$10, 51111
Spent thus far for
Mower
250
Balance $Ill 2 ll
Obviously the largest, item in the budget is $7,000
for the aprinklrr system. it, would appear that an
acceptable method (if' watering the parks would be
the purchasing of b00 fret of hose which would cost
about $01111 int. ludfng the necessary hydrant adaptors
and heads for the system. As a result of this savings
of about. $6400 from the budgeted amount, some flexibility
m,uld necur 141 al low other park projects to be considered.
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As an .i-ndi.cati.on of what monies have been spent for
park i.mprove:merrts, .listed below aro costs for 1976:
Landscaping $ 12,042
Playground areas 5,221
Water Service - 401 St. Park 9S5
Park Road 5,612
Gime NSP Bal.lfield 573
Bandstand 12,540
Other 4334
TOTAL S 41SO
In addition to the enclosed .list of i.mprovements
totaling $7,745, the boat tand.ing in 1311i.son Park
,is in need of repair and a cost- cstA.mate of $2000
has been received.
POSSIBLE ACTION: Coosiderat.iOo of park improvements
to be carried out in the summer of 1977.
Agenda Item S. Consideration of Landscaping and Parking Got -
Maint:enance Building.
Pursuant to the cortncil's request, Mike Rnja.la and
myself have viewed the Mnintenance Ruil.d.tng Site
relative to .landscaping and parking lot improvements.
Oter recommendation would be to landscape_ with sed nn
area of IO feet towards Golf Course Road Prom the
Maintenance; Building and the cnt.i.ro length of the
building. Another arca to be sodded might be the
area by the, Targe tree that; is s.itunted I:o the south-
east of the bn.i..lding. P.ive or six trees nre also
p.i.nnned for thr_so areas.
It; wnol,d fort -her appear t:hnt the hest; place for a
parking lot would he I,tte area just: SOOL11 of the
maintenance, ho.1Iei.ing adjacent ter the sod border
mentioned in the previous paragraph. It is me-
ommended this nren be, Ill. lick t:opped to allow for 10-
12 parking spares.
The remainder of the area .is :i.n need of binding noel
P.i.tl and it is intended that; the entrances to the
maintenance building be 603b up with class S.
Addltlnnnl.ly, the low nren nP the lot town -da the
northeast would be leveled fart; not: brought to grnde
oP rest or tut buolloae of oos1. of fa l l rte ecssavy.
"Un arca eoold he ui.tlnurtely headed to level of
rest of 01 to over a period oP timm l ill. ennid bo
penvLded from futuro sewer and water projeet:s.
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Cost of total improvement would be approximately
$2400. The 1975 Maintenance Building Construction
Fund has a surplus of approximately $3900.
POSSIBLE ACTION: Consideration of Maintenance
Building Parking: Lot and Landscaping Improvements.
Agenda Item 6. Review of Strcet Report.
With last meetings agenda there was sent to each
councilman a copy of a street report prepared by
Mike Rajala. This report was prepared pursuant
to an earlier r e quest by the council and its pur-
pose is to review the existing condition of streets
and various methods of upgrading city streets.
It should be pointed out that 1977's budget for
street repairs and improvements is $15,000 of which
approximately $10,000 will probably be necessary
for routine patching and maintenance leaving a
balance of $5,000. Obviously there Is not sufficient
money available in the 1977 budget to initiate much
of a street .improvement program.
Alternatives to be considered would be to initiate
the program in 1978 and levy the street improvement
program over a four to five year period. This would
require a one mill levy or approximately $40,000 In
each of the next five years for example. Some
consideration might also be given to having a levy
of may two m111m in 197`1 to catch up on the ,street
program and .levy one mill. in each of the next two
years.
Another alternative might be to float a bond and
do the entire program in one year. However, a
referendum woul d be requlred on and unlcas at
,least, 2(1% Of tilt ppojevt was ass Cased.
You ahuuld also note, that. Mikela Street Report,
estimates the mist of curb, gtit ter, dorm sewer and
a two inch bituminous aurCace to he About, $8,300 per
blot k. This wu uld appear to be impractical Cron a
coat Standpoint unless a grant was recetvrd or at
large ahare of the coat waa aaaemsed.
^o'
To illustrate the cost of resurfacing the streets,
an example is listed below comparing a bond issue
payable in five years versus a levy for five years.
Cost of a 2 inch bituminous overlay mat was used as
this appears to be the most feasible and acceptable
method. Example of this method is 3rd Street which
was done in 1972.
Cost of Project $185,539 $235,112*
Interest on Bonds $ 33,325**
Total Cost $218,934 $235,112
Ad Valorem % 80$ 100$
Ad Valorem Share $175,147 $235,112
Assessment % 20%
Mill Rate per Year .87 1.16
Ad Valorem portion
$30,000 home per year $ 8.72 $11.66
Assessment based on 66ft
lot per year $17.86
cComputed on 8% annual inflation factor
itxComputed on 6% over 5 years
Advantage of the bond program is that the project
could be completed within one year and eliminate
necessity of bidding each year plus factor of re-
cei.v.i.ng a more favorable price on larger project.
POSSIBLE•. ACTION: Consideration of etrcet improve-
ment, if any, to be considered in 1977.
REVERENCES: Street Report, Cost on Scarifying,
Article from March 77 issue of American
City and County rotative to scarifying
method.
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POSSIBLE PARK IMPROVEMENTS
WEST FRIDGE PARK
*Sod $ 1950
Parking Lot - Class 5 120
Trees 6 ! $45 270
Sub Total $ 2340
EAST FRIDGE PARK
Sod
ELLISON PARK
65
Blading & Road Improvement $ 100
Tr ccs 5 ® $45
225
Sub Total
325
4711 STREET PARK
Sod -infield & outfield
$ 2050
Line -base paths
270
Tr ecs 3 • $45
135
Sub Total.
2455
11111CREST PARK
P.layground $ 1800
Skating Rink 160
Sub Total 1960
[lose a Adapters 600
TOTAL aL
*Sc3,d, where indicated, ineludes necessary black dL•t
NORTH - SOUTH STREETS
(Excluding Cedar)
STREET HEATER SCARIFYING WITH 3/4" M.H.D.
COST
#2341 WITH
BITUMINOUS OVERLAY
Chestnut
S 1,102.00
Elm (Pine -River)
$ 1,102.00
Dayton
$ 1,102.00
Palm
$ 3.306.00
Hennepin
$ 3,306.00
Wright
S 3,306.00
New
$ 3,306.00
Vine (not dead end)
$ 4,407.00
Washington
'
S 4,407.00
Ramsey
$ 4,407.00
Walnut
$ 4,407.00
Maplo
3/4"
($ 6,611.00)
(Includes to Apts.)
$ 7,976.00
Minnesota
$ 51509.00
(To Apts.)
Locust
$ 51509.00
I.i,nn
$ 5.509.00
$SR.S61.00
Elm (River -Tracks)
3,940.00)
TOTAL EAST - WEST
$ 76,141.00
$ 63,905.00
NORTH - SOUTH
1 18.J61.00
18.561.00
$134,702.00
$122,466.00
Rel
EAST — WEST STREETS
i
STREET
HEATER SCARIFYING WITH M.H.D. #2341
COST
3/4"—I" BITUMINOUS OVERLAY
Fourth
1"
S22,,375-00
3/4"
$18,781-00
Fifth
1"
$ 5,971.00
(Pine -Maple)
3/4"
$ 53012.00
Sixth
1"
$ S,055.00
3/4" v
$ 6,761.00
River
1"
$31,704-00
3/4"
$26,612.00
Hart Blvd.
1"
$ 6,722.00
3/411
$ 5,637.00
Third
1"
$ 1,313-00
Elm - Pinewood School 3/4"
$ 1,101.00
Total
1"
$76.141-00
3/4"
$63.905.00
6�1
EAST - WEST STREETS
2 Inch M.H.D. #2341 Bituminous Overlay $97,826.00
NORTH - SOUTH STREETS
2 Inch M.H.D. #2341 Bituminous Overlay $87.713.00
$185,539.00
Coat of fat Stage Construction of storm water drainage
facilities as outlined in the Comprehensive Utilities Plant
"Maple Street Facilities" $580,000.00
"4th Street Segment of
Chestnut Street Facilitiea" $143.000.00
$723.000.00
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CITY OF MONTICELLO �S0VV
1 STREET REPORT
In 1976 he city of Mo to spen 8,231.09 on
street mai
Ma airs. Approxim % of
this figure nr was for bituminous mix used
in patching. Tsents an unusually high dollar
amount to be spent on repair operations. The time for
decision making regarding investments in the main-
tenance and repair of our street system has arrived.
It is no longer feasible to invest this amount of
money in a rapidly deteriorating system.
The bituminous pavement on a majority of our
streets suffers from numerous defects. Among these
are cracking, potholes, slippage breaks, settlements
and raveling of the pavement.. Not only are these
unsightly and hazardous, but."ey allow water to
infiltrate, compounding the already existing problem.
In some instances a rejuvenation program of seal
coating is required, whereas in others, total re-
surfacing is the most logical, cost effective
s*al,u ti on. 1 t is no 1 anger possi bl c to trim the
defective point back to sound asphalt, vertically
cut the edges and install a permanent patch. The
existing mat, is either too brittle or thin. Instead,
M -C bituminous mix is overlaid over the entire de-
fective area and feathered in to conform with the
existing mat edges. This provides only a temporary
patch that will require additional repair work one
to two years later. In many places within the city,
the streets are essentially several layers of patches.
An active., effeeti.ve street rehabilitation program
is mandatory; one in which repair and maintenance work
%ill he performed on a permanent. rather than a tem-
porary basis.
All streets running east to west, with the etrept.ioli
r.f 3rd Street and those att•ceteresurfaced as part of
ahcs 75-1 construction program," should be considered
for resrirt'aring with a 11 to 2 inch bituminous
overlay. These at,reets are all high volume traffic
r.ol 1 ector rotates and are; plagued by all the defects
preriuusly listed.
fourth and Sixth Streets aro extremely brittle
;ntd in many pl arcs the existing asphalt mat is teas
elarua inch t.hic k. The atrength of the supporting gravel
C, Base appears to Ma adequate but soil boring tests
could be conducted before resurfacing begins.
Z_
R iver Street is especially prone to sett.] ements
and depressions because of the high water table in
that area. One possible approach to prevent this
type of pavement failure would be to lower the
capillary water zone by installing drains below the
water table. The capillary water itself cannot be
drained but by lowering the zone, water would be
removed before it reaches the sub-grade. Consequent]%,
Frost heave, the primary cause of depression and
settlements would be. practically eliminated.
A 2 inch #2341 bituminous overlay will eliminate
95% of the defects and will give the streets a
"like-new" appearance. Useful life- }__ r
a street resurfaced in this manner si15-20 years.
One problem that will occur, however,
level of the street surface will raise and wipe out
much of the curb in the curbed areas along River
Street. Feather edging the surface at the curbcan
minimize this problem at curbside, but at the risk
of raveling the feathered layer and of producing an
excessive crown at the center.
Estimated cont for a 360 foot x 32 foot street,
providing the base is adequate would be:
160 tons #2341 bituminous mix 0 $1 1.50/ton
$1,840.
Ilowever, there are two factors that must be con-
sidered before any rational decision-making process
can necur regarding street resurfacing. They are:
1. At. what point In time will curb/gutter and
storm water drainage facilities be constructed, and
2. How extensive wil l this construction be.
To Install a 2 inch bituminous overlay without con-
st.ruction of curb/gutter and atorm water drainage
hail ities precludes the fact that the normal 15-20
year .life m, tnel.anc of such a orogram will he drn'stic-
a t ly shortened . 9tan i,ng water caused by the poor
uralnage along much of 3rd, 4th and lith Strects will
itiN 1 trato along the mat edges and through all access -
i we vows. The new mat wit rapidly deteriorate
and the load hearing soils will soften. The repotition
of traffic loadings, especially along these heavily
used col I ertor streets wi 11 then crack and ravel the..
pavement. Also, if the derision to construct curb/
gutter and st.orm water drainage facil sties is made a
couple of years following resurfacing, new drainage
patterns and gradients will have to be re-established.
For all practical proposes, this construction would
necessitate c,omptete duplication of the previous
year's resurfacing program.
An alternative to this problem of duplication of
nPPart wn"td be to construct curb/gutter, storm water
drainage faci-lities and a 11 to 2 inch bituminous
overlay in a single operation. This situation would
lend itself to the possibility of recovering part of
Lhe costs an an assessment basis.
Estimated cost for 360 foot x 32 foot street would
be:
Type "0" curb/gutter at $3.20 L. F. x 720' = S2304
Storm sewer 0 $13.00 L. F. x 320' 4160
!2341 bituminous mix 0 $11.50/Con1840
(160 tons) a $8304
Our city engineers have indicated that they think
it; would be advantageous and most cost effective to
the city if a permanent street improvement program
ua s initiated. The storm drainage facilities will
have to be constructed first or concurrently with the
street Mprovemente. They recommend that "the can-
sLruc Lion of the Maple Street storm water system as
-hown in the Comprehensive Report be given first
prinrit:y. The initial cost is higher but may be
offscL by nsseasmenLs for curb and gutter, laterat
Cost of storm sewer and perhaps the bituminous pave-
menL itself, and the balance on ad valorem taxes
pending a policy established by the council. The
assessments could also be indirectly lowered through
I he use of Cenrnty State; Aid Funds on designated County
aid sLrre:ts. The: County will reimburse the City for
cernst.ruct.ion of bituminous baso and wearing course
(npprnaimaLely 70%), curb and gutter (50%) and storm
sewers (by contributing Plows) on any C.S.A.H. This
would include C.S.A.H.'s 75, 39, 58 and 59. C.S.A.H.
;S is Pourth Street from film to Pine and C.S.A.H. 5')
is LncusL From Fourth to Broadway. The benePiLting
prnperty atom.ting these C.S.A.I1.'s could stili, he
assessed Llre: same benefits as on other residential
,.mutt which would in Lurn tower each individual
"ssessmunt herause nP county participation.
I
Any construction -proposed for C.S.A.H. funding
must be proposed to the County for their approval
and the money will be budgeted for some future date.',
In talking with Larry Koenig, Wright County engineer.
at the county's 5 year road plan meeting, he in-
dicated that now is a good time for municipal C.S.A.11.
funding. $1,200,000 is already in the budget and
$200,000 of this amount is earmarked for construction
in cities of 5,000 or less. At present, there appears
to be a lack of municipal projects on which to expend
all these funds.
However, there may be one ramification if C.S.A.H.
funds are spent now. The city has discussed the
possibility of constructing the proposed service
road south of I»94 between C.S.A.H. 39 and S.T.H. 25
with C.S.A.H. funds. The proposed road is longer
than the city is now allocated for mileage. Irregard-
less, Mr. Koenig has indicated that if a definite
proposal of construction is submitted to the county
the likelihood of this service road being constructed
with C.S.A.H. funds is good. However, he also ment.ioned
that if money is now spent on C.S.A.H. 58 and 59,
they would hesitate to trade off this mileage and
it would bu very unlikely that the proposed service_
road would be C.S.A.H. funded. Some serious thought
will have to be given to the priorities of this
si tuati on.
Another possible approach is to reconstruct the
existing streets bases to atlow water to enter the
sub -base and thus eliminate the need for storm
sewers, curb and gutter. Here the recommended base
is 12-15 inches of crushed rock topped by 4-5 inches
of gap -graded bituminous. This type of construction
at lows the moisture content of the soil to rise above
its liquid limit.
This procedure has been successfut on a few occasions
lxtt is not, looked upon with flavor by the professional
community because it directly violates the principles
of gond load bearing roadways. Also, design suit-
abi t i ty for this region of the county is questionable.
The materials used in the subgrade must be impervious
to maintain adequate subgrade strength. In the winter
-4-
and spring the pores will freeze, allowing no water
passage or drainage. The freezing and thawing
action tends to heave the pavement and with frozen
road sides there are drainage. problems.
Asphalt scarifying is another tool which can bo-
eused
usedas a complement to a program of total resurfacinr:.
This method consists of softening the existing surtax,,
r �%
with heat and then thoroughly stirring and trmbline
� `
tht: mixture to an average depth of 3/4 inch. if
restoration of contour is required, the remixed material
is processed through an oscillating screed before it.
is tacked with an emulsion and overlaid. when
r4l
u..cd
directly before the application of a new overlay, at
frr4l
If,
existing cracks are eliminated and there is a 10th
bond between the old surface and the new mat.
se uently, if scarifving is used before the anolicat -n
0 a t inch mat, the combination of scarifvin lithe
cars of i/1 of ninch and r,• -
surfacing will
t .li araduce a pliable 3f4 inch surface
of navemn„lyy. A combrna ion of hea Ler scarifying and
overlay with a to 3/4 inch bituminous mat, is
c+pta'ially applicable as a cost-effective resurfacing
program when adequate drainage is not, available.,
C?�
1
The dense. compaction of the well coated aggreRat
.�
�I�LKS
makes it extremely difficult for moisture t.o spre::l
icc
t
I�
through portions (f the fiasure between the two lay,o•.s
1
of norfncing. Whereas, in ordinary resurfacing,
thee—S;
is often dry and bare aggregate existing in the area
between wen the two layers our
f surface that allows moist,l
T'
to spread thereby reducing the quality of construction.
Sjjjlti'
F:st,rmat,t:d cost for recycling an existing 360 fo.,t
32 font, street. by heater at, arlfyIng and oscillating
rj�lf
scr,:ed and resitrfacing with a I Inch bituminous ovcr-
twins
l ay woo l d lit.-:
tit tons (2341 bituminous mix at $II.SO/t.on $920.01
I2.SO sq. yds. at $.40/ sq. yd. Si_.ttn
14 00
to teems of scheduling, one possible approach Co
effectively finance this program would be to implement
the resurfacing program on a yearly basis. Possibly
all ht.r•ecta that. run east, to west can be done in it
I - 2 year period and the north - mouth streets the
folh,wina 2 years. 1 would recommend, however, that if
a r1—isinn is made to proceed with bi tumi,nous overlay,
that +hv unsurfaced sections of Vine, Maple. Minnesota
and ith Streets be included. The'sectinn of MAph,
hat —1-VeS as an utt ranee tothe kidwrmont Apartments
t+•.+.Id be ai.ven top priori ty this year Le at a l p+, :siI,
So,,; .hating is tite final asphalt coating pl a, ed
To r hi tum.inous surface 1'+,ar preventive mai-ntenan. e
ybr1..• -, after correction of any flaws. It is the
t.+ -wring, continuous surface that will prevt•nt
lie 'ttu'i I tration of water into the base and keep the
.trl�ala. pliable. `The most popular type now used is
INick asphalt mixed wi.th 30 ; napt,ha anti appl tasd
'+t a fate or 3/10 gallon per ,square yard. Saptha is
p! + t ef-d over an emulsion or gasoline type distil Late
nl. �A' ur Sr mix because of its improved curing and
+4.t'teniara qualities. This hot -liquid surface ;is
i,,%. -ted with a fine layer of buck shot sized rock and
itI l ued t o seal, for 3-,S weeks before final sweep up.
Inder normal conditions, seal coating should be
;reel ied every 4-5 years.
fn Monti,cetln_ Th3.et „A �.r:S1.rc . nt'It•yr
Road should bn sen t,ntr;l( �htc Additional t 4 ,
Me two city owned parking lots behind Johnson Dept.
Store and the city hall area will need to be scaled
this year to maintain their present conditlon. Thr
third lot behind Fullertonts, which was seal coa,tgd
in 1915, could simply be crack sealed with a resat hely
inexpensive tat, sealer. seal coating any streets
other than these would be an exercise In futility.
They are beyond the point of .being .in a maintenance
manageable condition and any type of preventive main-
tenance would have a very low cost to lift, ratio,
Seal coatina -drwa not c•j imina .t do uriensionns. eyomes
or corrugationsnor will it, jtrnYid4- nm• lnnv corm
U •11 .'I ILW +" - n ui'r;.p ,-rim n 1111i ,. .4,._
korhoval.ed
.-
y.•rhovat.ed b.ituminouA aaurPaeo. A street where the
marl clF i laws have not been c;uOrected wi l l be ref l et t ed
baC k up, through the new seal coated surface. To
rrprnt, seal coat>ing should be regarded as a maiuteoanrc-
tool and used In such situations where rejuvenation
is desired.
Bst-imated cost .for -seal -coating a 360 foot. x
32 font street would be;
12 0 sq. yds.
@ 15-46 sq. yd.
= $ j1 S2-.01)
Third Street
22,044 sq.
yds.
0 $.40
- S8,817.00
Cedar Street
5,659 sq.
yds.
0 $.40
- $2,275.00
NiliLop Drive
4,267 sq.
yds.
0 $.40
= $1,.707.00
Parking Lot A
- Behind
Johnson's Dept
Store
46,333 sq.
yds.
® $.40
- $1,•S533.32
Parking Lot B
- Behind
City Nail &
Bowling Alley
21766.75
sq.
yds.
0
$.40
- $1,1o6.t,7
The remaining unsurfaced streets within the cities'
boundaries will continue to require yearly upgrading
aith additional gravel and blading. In those areas
whero dust may bea problem, a dust coat is applied
in early spring. Where development is minimal no
problems are anticipated and until sufficient dcvel,up-
mens in these arras does occur, no resurfacing should.
be considered.
Make new streets out of old
Recycling, heater -scarification and
thin overlays get more use as
low-cost routes to stronger roads
Now wast cotlatNtaen used ata in of racy.
eject &spew lot tuecepm roadway
"To meal the publlo'e demand for
good made at reasonable Dost, Ma-
plewood, Minn , refused to throw away
sound subbase materials when upgrad.
ing an existing &treat. Instead, old
aggregates we
re used to make the now
pavement and saved the out of using
all -now materials.
In the recycling proass only the old
crushed gravel hose was run through
the hot -mix asphalt plant dryer. The
gravel was heated to a higher than
normal temperature for a hot -mix op.
eration (00F). The crushed old pave•
ment surface was then added to the
heated aggregate in the pugmill. This
eliminated contact between the dryer
flame end the old pavement mix which
included flammable asphalt,
"Extra" heat added to the reclaimed
gravel aggregate softened the pave,
m,mt mix so that only throe percent
new liquid asphalt needed to be added
topproduce the deslrod final mix,
7Tern was only one modification of
rmndard hot•mis production and
placement prxcticemiedad In the whole
m Wing process. A halt conveyor had
to he installed to transport the old
uushed surface pavement from
sues kpde to a chute where it was fed
mtoslhe weight bucket, no reclaimed
graxal base was fed into the mill
through the normal cold feed bin opera
11011,
The ratio of ham material to surface
material was about I I The material
was mixed dry for about 20 sec The
new asphalt wag then added \fixing
nmtiniud6renother80w Thebauh
nl now aur rag then loaded into true ks
for drinery to i hapb i tte
At the dull oily, the rerycled rmx was
put down with comsntional equip,
ment. The new street used about
18.2110 tons of recycled mix with an av
erage thicknean of 8.6 in. A %.i n, wear -
Ing surface capped the recycled base.
Conway Ave. Is approximately one -
mi long. The street serves a mix-
lureof light industrial and residential
traffic. As originally constructed, it
consisted of five -in. of hot.mix on top of
INio. of crushed gravel bar.
Tho five•inehes of old road pavement
was picked up and trucked back to the
plant There it was crushed and
stockpiled, The 10 -in. untreated
crushed grave 1 base was also picked up,
taken Meek to the plant and stockpiled.
A bulldozer with a ripping tooth was
used to break up the old pavement fur
trucking to the asphalt plant.
Ono problem with some similar as-
phalt pavement recycling efforts has
been excessive smoke. Smoking can
occur when the old pavement is run
through the mill in contact with the
dr3rr8ame Often the emissions exceed
local Rmblent air quality standards
"In addition to eliminating any air
pollution pmbleme, the method used by
Maplewood also has other advantage,%,"
noted Ray Ilate, Maplewood'e Superin•
tendent of Public Works, "First, we re-
claim and reuse all of the old street
material. Second, wa reuse aggregate
that may Ial in short supply in Rome
parts of the country Third, we only
need shout three percent new asphalt
manad was h the four to six percent
needed for normal new hie mit
"The methcid has M•nefits rrgardmg
the envamnmcnt, ctinwr%ation, puhllc
relations and rcannmics Also, the pro,
eeaa tan successfully compete with con,
%rational new mix," Il its 4iatm9
Nesler.eoariftestlon, The intruming
11 ��' fttl� �"IJ � �".Ty 111" � �•'� al
L
Payna Co at- plane can root collective
trans 01 wax m 1c1hl airing Curbs
ua.- til heufrr srnrdLaunn Indir:at rs
that than nieth,d of raudrny rehnhibtu•
Uon run also ofler definite advantages
ate, con,entiunnl a•gdwh o-Oatr
Their• un lude
is Censer—tam of m:denulx hrusing
the scari0e,l portion of the coaling
patemenl lit form the new surface
s -lowing of the build up of in -et
crowna and gutteni by allowing the use
of thin o erlays or vhnanating o%cilots
completely
e Het,aulrution of the evrrnnit nnplialt
by hooting. onitening and drawing the
bitumen to the rurlurr of lite pa".
merit
Is Mien ng coats, of run, ent art
muintemnce bt r,•ditrI na oterlay
th,cknens
The heater n-riRing prvsraa can he
CMI cold planer can profile large pavement
areas hismA lg usable riding surface
used in til Ieasl two different way's
Amarillo. Trans, uses a method that
seems us work succeasfLlly nn their
sreete The Als•cutl healer•ecsrify utg
equipment burrows a AWn. layer of
material from the existing pavement
A rejuvenating agent is then apnt,
npphrd lit the ecnnfled surface.
To old in reducing the build-up of
paling material of gotten, it one it
derp alnp of old pavement to cut and
removed from the arra along the curb
A one -in thick overiny urconventional
asphalt rrtncrete surface material fit
then placed The city feats that this
helpa to reduce reflective cracking and
gi%en it amexgher wruring surface
The penetruting agent lRerlirl as
designed to act nn a bander, but it also
Is•netrefen the old pavement to restore
pinnticaly and ductility and helps it n.
Inn more of it Iuitemenl's useful qual•
aur•- Melvin tihi, City Engineer f r
Amarillo, (eels that improved final ri,
nultn are obtained by using a 501 aolu
tsar ofthe material sprayed at the rate
of 0 Ill 0 20 gal per sit yd
Cold planing. Oklahoma City found
out about cold planing when a Kral
contractor usel Il(• ntrthod to namove
one in of uaphah on a four -lone, t''j•mi
long alrrrt A li:,m asphalt overlut'
was to hu, plared after the old surface
Heater-scumtlor creaks up pd,emenl to a. In
depth wth workable material comp graded
to most recruited profile.
had he -n -.,rd .,nd cleaned
As the asphalt was removed by the
planer's carhidc,toothed cutting drum.
the machine picked it up and deposiud
it in a dump truck trailing behind- The
CMI Profiler "didn't even miwe any
dust.- according to one field engineer.
In on Oklahoma City project for the
suite highway department., up to
10,000 aq yd per day of deteriorated
concrete pavement was removed from
an elevated section of Interstate 40
Cutting down to 'i -in. deep, the 45.000
eq yd Contract was completed in just a
few days.
The state's resident engineer. B. J.
Mead, reported that "not only did the
machine do thejob faster, but it did not
fracture the nggregate as much ties
other methods) and left a cleaner tex-
foro. It provided an excellent bonding
texture for the new overlay."
Thin overlays. The Los Angeles County
Rood Department materiels engineers
and the Asphalt Institute researchers
believe thin overlays of V-1" asphalt
concrete are adequate for most rein r.
facing jobs. These thin overlays must
be protected from horizontal strneavit at
joints and cracks in the underlying
material, however.
Rood surface overlays tend to crack
along faults in the underlying road
foundation. Cracks seen in the original
pavement Boon reappear in the new
surface, as now material in contact
with the old surface sullen the same
stresses that caused the original crack
When then, stn•eses exceed the elastic•
Ly of the new material• the underlying
cracks surface To reduce reflect-,
cracking• underlying stresses in fit,-
crack
hecrack area must Ir• doaributetl titer a
rider area
Breaking the conflict tend bvtt,en
the new overlay and the et otting mute
nal h,lln this dislrahutmn Tests rah
limestone filter, annd, nhuminum fnl,
retailing felt and I'artinnd cement dust
show that lh,v are all effective bond
hrankers
Stronger asphalt overlays from three
to four in thick can also he used to pre•
tent cracke for about 10 yr While of
Waite, this method as tory eslienn-e
Abut, merlaid slre,u tend foliate high
crowns and Ins- elormwaler crrying
capacity after only one such reaurfac
mg
According to IL,b,rt Spencer. public
corks director of Hurbmk, Valit , the
projected nisi of a pmissu•d three in
nsphall otrriny prompted cin , n
diners to intrxtigate methods lar pre
tenting reflection ranks from ti o ing
new cork Orikinal phmo called for
42 1•41 AMERICAN C,n A COUNIv Margin 1977 v
Routed matenal le ramoved
from M rHh loader, by nand
and with high pressure as pt.
Mier a borl0•breaAelp momtvano
is placed, fouled ctatM is Idled to
graft and compacted,
� n
I
Cleared aaC4 is filled wah
comantronal sealantkmpourm
OM
than 01Co5
3
is
swapl away,
Till: AMERICAN CRY A COUNTY' March 1977 43
6
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