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OCR for page 1
NCHRP Web Document 11
NCHRP Synthesis 257: Maintenance Issues and Alternate Corrosion Protection Methods for Exposed Bridge Steel
APPENDIX C: Survey Responses
( Abbreviations at end of each table)
| Painting (Section I A)
All VOC VOC Plan Bolts Box Girder Interiors Edges
Shop Limits
| ~l l l | Painted System ~ Why | Prep ~ Why
AK Y Y MAKE HD MG Y PRIME CP R. G CSP
EQUAL TRCOAT
AL N Y GO TO HD,MG N R. G ALWAY
l l | WATER | 32 l l | REQ | S NG
AZ SAME HD N G NG
AR N MAKE HD MG SAME CP G ~ ALWAY
EQUAL B2 S NG
CA N Y ALREADY HD MG Y SAME CP G NG
COMPLIAN B2 VIS
T
CT Y INT Y HD MG CP EI R CSP NG
MEMBE B2 WHITE VIS
R ONLY TOPCO
CO Y Y _ B2 Y PRIME CP EI G NG
ONLY
DE Y Y MG SAME CP G A
SAME
FL CP EI _
VIS
Existing
Policy
REP OC
Z
REP OC
REP
REP OC
REP Z
OCSP
REP Z
SPOC
ZSPOC
REP SP
ZOC
REP Z
SPOC
1
.;
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Synthesis 257 survey responses
Painting (Section I A)
| | ' 'OC | VOC Plan | :lolts | Box Girder :nteriors| Edges
Painted System Why Prep Why
GAN Y ALREADY HD N G CS NG
| COMPLIAN | l l l l
| En | Y l I ADDRESSE | | SAME | CP | G | A
D
IL N ' <340 G Y Y CPEI Y NG
: 1 1 1 1 1 IVIS 1 1
IN N Y SHOP B2 N G A
ONLY
IA N USE MG B2 CP EI G NG
| I WEA.ST
SOLID
| BORNE l l l l l
KS N Y PRIMER HD MG Y EM = CP EI G CS NG
ONLY B2 ZN VIS
KY N Y <350 MG,B1 IZ CP R,G A CS
E l l I NG
LA Y INT <350 B2 N N A
| R ONLY l l l l l l l
MA N Y NO PROB HD MG Y CP EI G CS
l l l l I | | VIS | I WELDI
MD N <350 B EXr CP EI R G NG
VIS
Existing
Policy
z
SPOC
REP SP
z
REP Z
SP OC
REP SP
ZOC
REP OC
REP Z
OC
SCOP
REP SP
OC
REP Z
OC
2
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Synthesis 257 survey responses
Painting (Section I A)
| All | lOC | VOC Plan | 301ts | Box Girder Interiors | Edges
Shop Limits
Painted System ~ Why ~ Prep ~ Why
ME | Y | ~| | ID MG | Y EXI ~| CP | R | A NG
| | 3 | | WHITE I l
Ml | Y | r | SAME l l EXI | CP El | R | CS NG
MN | N | r | MEET~ \1GZn T Y | IZ | CPEI T R
MO N r WILLBE GB2 Y IZ CPEI G NG
| COMPL OR |
l l | ANPOPTLY l l l l l l
MT N WEA ST TYPE 3 PRIME CP VIS R NG
NC | Y l| <350 | HD | Y | EXI' | CP VIS | R G NG
ND | Y l | CHANGE | HD MG | Y | Y | CP | G C5 NG
NE | N l | CURRENT | B | N l l | R G | NG
NH | Y l | <350 | MG B2 Y EXT ~ CP El j G
NJ Y Y CHANGE HD MG Y EXT CP VIS G A
l l | MHARNU F | B2 | | WHITE |
NM | N |, | EMQAUAEL | B2 | Y | SAME | CP | R
NV l N | B2 | Y | SAME | CP | R | ALWAY
NY | Y l | <350 | Bl | Y | | CP | N | ALWAY |
Existing
Policy
REP SP
OC
REP
REP SP
ZOC
REP SP
ZOC
REP SP
REP OC
z
REP OC
OC
REP OC
Z
REP
OC
SPZ
OC
3
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Synthesis 257 survey responses
Painting (Section I A)
AllVOC VOC Plan Bolts Box Girder Interiors Edges
Painted System Why Prep Why
OH N Y ONLY HD DON'T R G NG
PRIMER USE
OK N N CHANGE SAME CP N N
OR Y Y CHANGE HG B2 Y SAME CP R,G CSP
PA Y Y TASK HD MG Y SAME CP EI G A
FORCE VIS
| N | r | SAME | ~)MG T N l l | G | CS
SC | N 1 ~| CHANGE l l l l | | S CSP
SD Y Y NOT G CSP
ADDRESSE
D
TN MAY Y <340 MG B2 SAME CP G ALWAY
S
TX
UT NO PLAN B2 PRIME CP R,G CSP NG
VA N Y MAKE HD.MG PRIME EI G NG
COMP B2 R/
TCOAT
VE Y Y HD MG NO USE R ALWAY
SNG
WA N Y B2 EXT CP EI R NG
WHITE VIS
Wl | Y | Y | MEET | HDB | DONT 1 | | G T CSPNG
Existing
Policy
REP
MOST
Z
LITTLE
REP Z
SPOC
REP Z
SPOC
REP OC
REP
SPOC
REP SP
ZOC
REP Z
SP OC
REP
REP Z
SPOC
REP OC
OC
REP SP
4
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Synthesis 257 survey responses
Painting (Section I A)
VOC ~ VOC Plan Bolts Box Girder Interiors Edges
Shop Limits
l j Painted System | Why Prep
| WV | MAY | ~ ~| EXIST | ID MG | Y SAME | CP | G
WY ~ N ~ TO VOC ~ 32 ~ ~ ~ G ~ CSP NG
ALB j N WS ~N/A ~EN ~ NSATI j ~
BC | MAY | , | CHANGE | HD MG | Y SAME | CP | R. G | INC
NB | N | | N/A | HD B2 | Y PRIME | CP | R. G
ONT | Y l | N/A | HD | N | | N I _
NF I r | NO PLAN | HGMG | N I T | G
NS l l l l l l l l l
SAS N N NO USE G NG
Existing
Policy
REP Z
SPOC
OC
REP OC
SPZ
REP Z
SPOC
REP Z
SPOC
REP SP
OCZ
REP
REP OC
Bl=Black with tolaant pnmer, B2=Black wl~ system pnmer, EM - oxy mastic
5
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Synthesis 257 su~vey responses
Paint-Nev' (Table A) | Paint-Existing
Type ~ VOC ~ Appl ~ Prep ~ Slip ~ Spec ~ Costs ~ Type ~ VOC ~ Appl ~ Prep ~ Spec
AK l ZMCU/ <340 | S | SP10 | B | STATE | 0.30/ | ZM2W | <340 | S SP6 | STATE
| UMMCU/MC | l l l | | LB | M~CU/MCU l l
l l l l l l | | M~ CU/MMCU/MCU <340 | S SP6 PW | STATE
AL I I I I T I T I I I
AR 1 IZ/PU/PU -- | S | SP10 | A | M300 | | RE IZ/PU/PU | SP10 | M300
l l l l | | STATE l l | | STATE
CA | WIZ | O | AIR | SP10 | | M300 | 5.00 | WE VA/WBA <250 | AIR SP6 | STATE
CT | IZ/EP/PU | <420 | MR | SP10 | B | NEPCOl T | 2.66 | RE] ' IZ EP PU <420 | MR SP10 | NEPCOAT
l l l l l | | SP ALKYD <420 | B,R SP3 | STATE
CO I IZ/PU <240 T s tSP6 1 A 1 1 1 MCU 1 1
DE l IZ/EP/PU <350 | B OR S | SP10 | l l | RE SP Z | SPI,SP2 |
~ 1 ~ ~LLLU~
FL IZ/EP/PU <420 S/RSIS SP10 _ STATE _ AEM AEM <420 SR SP3 or SP6 STATE
l l l l l l l | | SR l
GA ALKYD <340 S SP6 STATE WBA/ <240 B S R SP6 STATE
| MCU | | MR | SP3 l l | | M('U | | MR SP3 l
Costs
$17/
SF
$4/SF
$15
1 1.50
10.00
20.00
7.00
REP 1 1.00
S 15-20.00
Z 1 1-15.00
OC3-10.00
6
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Synthesis 257 survey responses
Paint-New (Table A) | Paint-Existing
Type VOC | Appi | Prep Slip | Spec | Costs ~ Typ ~| VOC | Appl | Prep | Spec
ID
I IL I M300/ <340 1 S I SP10 B I STATE I 1.50 ~1 1 1 SP10
I I WBA/WBA l l l | | SP | SP3
| IN | IZNN | | PWAS l | 2.50 | REP IZNN | SP2
HL&AS l I I OC ~ ~aSulfonate
1 l | | T ~l l l l l
| IA | IZ/WBA <350 | S | SP10 | B | AL T I R 1 350 | S. B ~SP10 | AL
KS | IZ/WBA OR NO | MR | SP10 | _ | STATE | 2.00 | Z Rl ~P OC AEM OR 1 | MR 1 SP6 OR T STATE
| | PU LIMIT I I I I I I ozr VBA OR PU | SP10 |
KY | IOZ/MCU/P 350T s T sPlo 1 B T STATE 1 - | AM~ W 1 350 I B/BR/S PW 7 STATE
| S l l l | | AM4~U/PU l l l
LA | WBVA/WB <100 | MR | SP10 | | | ALE YD 350 | MR SP2/ | STATE
A SP11
MD EM OR <350 MR SP10 STATE REF EP/PU srlo STATE
| OR WBA l l l | | Z A .M/EM/PU |
i 1 ~ i ~:~S SP3
MA lZ/EP/PU <420 MR SP10 B 0.09/L REP IZ/EP/PU <420 MR SP10
B | E `1/EM/PU l l
ME IZ/EP/PU <420 MR SP10 B STATE REP AEM/AMCU <350 MR SP6 STATE
ZMCU/MMCU/MMCU
Ml | OZ/EP/PU | 350 | SP | SP10 | B | STATE | 3.00 | REI OZ/EP/~PU <350 | S SP10 | STATE
MN | IZ/EP/PU | <350 | | SP10 ~/A iSTATE T 2.00 | REI OZ/EP/PU 420 | SP10 | STATE
Costs
$7.00
$8.00
$7.50
$1.50
$7.00
$1-1.50
=6.00
1.25/ sf
REP 10-13
OC 3-5
l
Z250R
1500/BEA
R
10.00
5.00
9.00
5-9.00
7
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Synthesis 257 survey responses
| Paint-New (Table A) | Paint-Existing
| Type VOC | App! | Prep | Slip | Spec | Costs | Typ ~| VOC | Appi | Prep | Spec
L I I I I I | | VAF ES ~ SP6 ~
MO ~IZ/EP/PU <350 ~SR ~SP10 ~M300 ~ OCt aSULFONATE ~<350 ~SBR | SP2 | STATE
MT IZ/EP/PU NO S SP5 DONT STATE REP IZ/EP/PU MR SP1
REQ OR 10 PAINT SP OC
. l l l l l | SUR TOL.EP/WBEP l l l l
NC WBAIWBA/ <240 S SP6 N/A STATE REP WBA/WBA/WBA <240 S B R SP6 STATE
| | WBA l l l | | Z Ot ALKYDJALKYD | <350 | | SP3
l l l l l l l | OR iBA l l l l
| ND T WPU/PU | MR | SP10 | - T STATE | T REP WPU/PU 1 | MR | SP6 | STATE
| OC. EM/PU l l l l
NE | IZ/WBAOR <360 | MR | SP10 N/A | STATE | | PP/( XPRIMER/WBA <360 | SP2 | STATE
PU l l l l I I EPI {IMER/MCU
NH IZ OR <420 MR SP10 B M300 OR REP ZNMCU/MMCU/ SP6
OZ/EP/PU NEPCOAT MMCU SP2 OR 3
MCU/MMCU/MMCU SP11 OR 6
NJ IZ/EP/PU MR SP10 B STATE 2.00 OZ/EP/PU <500 P MR SP10
NM I SP l l SP10 | UP | STATE | 3-4 | PU EM/PU SNPOT | S SP6 l
NV | IZ/EP/PU <420 | S 1 SP10 l l l | EM M/PU | SANDBLA |
| OH l l l l l l l l l l
Costs
8
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Synthesis 257 survey responses
r Paint-New (Table A) ~Paint-Existing
Type ~ VOC ~ Appl ~ Prep ~ Slip ~ Spec ~ Costs ~ Ty~: ~ VOC ~ Appl ~ Prep ~ Spec
OK l IZ/EP/PU <350 | MR | SP10 B | STATE | | RE IZ/EP/PU <350 |
OC EXPERIMENTAL <420
| OR | WIZ/PU | 350 | MR | SP10 | B | STATE | | RE] ZMCU/MCU ~<350 | MR | SP6 | STATE
T I 1 1 7 7 1 7 oc ~MCU/ l <350 7 MR | SP6 | STATE
PA l IZ/PU <420 | MR | SP10 | B | NEPCO] T | | IZ/1 P/PU <420 | MR REPSP10 | NJ/FLA
AEM AEM PU OTHER
l l l l l l l | OZ MCU/MCU ~| SP6 l
Rl l OZOR <420 | MR | SP10 T N/A T STATE T I RE SPOC <360 | MR SPII | STATE
iZtVARIOU AEM/AEMNARIOUS
Is L I I I I I I I I
SC | IZ/EM/PU | <350 | MR | SP10 | B | STATE | | EM EM | SP6 | STATE
SD l iZ/PU 7 T MR 7 SP10 7 A l STATE 7 2.33 l RE~ SPZOCALK/ALK l MR S,PWSP6 T STATE
TN | IZ/PU | <350 | S | SP10 | B | STATE | | RE IZ/ PU l l
1 7 | 7 I 1 1 T oc <3so | S SP2,PW T STATE
TX l l l l l l l l l l
UT | IZ/EP/PU | NO | MR | SP10 | | STATE | $3.00 | IZ~ P/PU NO | MR SP10 | STATE
| | LIMIT | l l l l | LIMIT | l
VA | IZOR l <420 7 MR l SP10 l B T STATEl)R | T RE~ IZOR NO | MR SPIOFOR T STATE,
OZIVARIO SCEF OR OZNARIOUS LIMIT RUST SCEF
US NEPCOAT SP Z OC ALKYD, REM NEPCOAT
l l l l l l | | WB, AEP
VE | IZ/EP/PU | <420 | MR | SP10 | B | STATE OR | | RE l l
WA | IZ/EP/PU | <420 | S | SP5 | B | STATE | | OZ `4MCU/MCU NONE | SP SP6 | STATE
Costs
$12-15
5-6
REP 6.50
S 7.50
Z 7.00
OC 5.50
$4-5
$2-3
$7.00
8.00
3-5.00
$6-8
9
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Synthesis 257 survey responses
Paint - New (Table A) Paint - Existing
[ | Type VOC ~ Appl ~ Prep Slip ~ Spec ~ Costs | Type ~ VOC ~ Appl ~ Prep ~ Spec
Wl | iZ/EP/PU NO | MR | SP10 B | STATE | | OZ/E P/PU | <420 | MR | SP10 | STATE
LIMIT l l l l l l l l l l
WV | IZ/VAR NO | PA I | SP10 B | STATE | | REP ~Z/EM | NO | PAI | SP6 | STATE
L I LIMIT l l l l l I I LIMIT I l l
l l l l I | OC( SUFORPP | NO | PAI | SP2 | STATE
ALB | WS l l l | | OC AMCUCA
SULFONATE WBA
BC | IZ/EP/PU l l l | | SEV OZ/EP/PU
~UF ~ IZ/EM M | S SPI0 ~ZP~EPIZ/EM/EM
EM TIE MATCH
ONT | OZ/VN N/A | MR | SP10 | AGENC | 51.50/S | RE OZ/VIV N/A | N/A SP6 | AGENCY
| | M | SP ~ EM/AEM
, NF | IZ/PUIPU | MR | SP10 l | AGENC'
| NS
SAS | MCU/MCU/
| MCU
MB
Costs
1 13.64/sm
PROV
FORC
$5.00
10
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Synthesis 257 survey responses
Z=zinc; MCU-moisture cure urethane; PU=polyurethane; IZ=inorganic zinc; OZ=organic zinc; A--aluminum; EM= epoxy mastic; WP=watff, E~epoxy; WBA=water home acrylic; WBVA= watt home vinyl acrylic;V=vinyl;
11
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Synthesis 257 survey responses
PREVENTIVE MAINTENANCE VS. OTHER MAINTENANCE Section V, Question 6)
British Columbia could be called routine mains done by main. contractors
Prince Edward Island
Quebec
Yukon Tenritones l
New Brunswick | washing of bridges and goosing of bearings
Ontario prey. main done on routine basis. regardless of condit Ben. main done as needed
Nr wfoundland | _
Nova Scotia
Saskatchewan example is electro chemical chloride removal from reinforced column
Manitoba
Northwest Territories
66
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Synthesis 257 survey responses
| REHABILITATION VS. F~EPLACEMENf I action V, Question 7)
Alabama Remaining est. ser. Fife and life cycle cost
Alaska remaining life, funding sources, cost comparison
Arizona | If rehab = 6o3/o oPre~olacernent~ repl strongly or iidered
Arkansas Amount of Federal participation
California Cost, load capacity of st. qtr. and current standard req.
Colorado Economics
Connecticut Sufficiency ratings based on qtr. deficiency and functinal obsolescence det rehab or repl. Historical signif.entff also
Delaware Cond. of all components, traffic vol and historical signif
Florida |
Georgia Cost and traffic control
Hawaii | serviceability of structure
Idaho
Illinois If cost of rehab. exceed or nearly exceed cost of never qtr.
Indiana Condition of str
Io`Ya Type of bridge, ref. cost, 30% of repl, do rehab. level of service of highway
Kansas Degree of deterioration and serice life
Kentucky | Posting, goern. br. width, cost is also a factor
Louisiana Other bridge factors such as loading, deck coed. width
Maine T cost trantlc need
Maryland | Usu.o~stoondition and str.capacity
Massachusetts
Michigan Cost. Br. Design Div does cost comparisons
Minnesota Cost is primary factor, incl. approach work
Missouri Deck and several ratings and funding
67
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Synthesis 257 survey responses
REHABILITATION VS. REPLACEMENT (Section V, Question 7)
Montana cost
Nebraska If substr. in good shape, then br. cold be rehab.
Nevada Soundness of elements which may be left in place and cost to bring up to current standards versus repl. Historical value is a consideration
New Jersey repl. considered for var. reas., bunch obsolete, qtr. deficient
New York Cost, coed. of var. elements, capacity, alignment
New Hampshire Functinally obsolete structural type, long term mains costs and cost
New Mexico Cost rehab. vs repl, cond of substr.and life exp. of alternative
North Carolina Cost versus increased service life
North Dakota Amt. of paint failure and condition of bridge
Ohio If rehab cost exceed 50°/O of replacemnt
Oklahoma Substr. coed, superstr. coed, width of qtr. Cost effective compared to repl
Oregon | Costis biggest factor Historir~signif entersil dso
Pennsylvania Cost If rehab> 70% of repl, look at it. Other factors incl lead paint removal, service life, lenght, location/site restraints
Rhode Island
South Dakota Safety coed. servicability, economics, funding available
South Carolina
Tennessee Cost effectiveness
Texas
Utah Gen. coed, cost of rehab vs repl., traffic loads and geometry of of the structure
Vermont T % delaminaltion or severe surfsealing % of ar of artiveconosion rend of deck solicit
...
Vlrgmla
Washington | Cost and functionaliyt of the bridge
Washington, DC
West Virginia Degradation of steel, funding for repl
Wisconsin
Wyoming Sufficiency rating, load capacity
Alberta Life cycle cost analysis
British Columbia Cost
68
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Synthesis 257 survey responses
| REHABILITATION VS.REPLACEMENT ~ ;ection V,Ouestion7) j
Prince Edward Island l l
Quebec
Yukon Territories
New Brunswick Cost, funds available, traffic,loads alignment, age and capacity
Ontario Prepare life cycle to present value, Financial analysis for competitive options
Newfoundland Rehab. 50% of repl
Nova Scotia l l
Saskatchewan Level of service. public safety cost
Manitoba
Northwest Territories
69
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Synthesis 257 survey responses
Defer Defena1 criteria
Alabama
Alaska no policy but needs beyond funds are deferred
Arizona But if work can be more cheaply by combining with other act. it is
considered
Arkansas When major work is ached. in near future
California But main. eng. will determine overall needs and may defer
Colorado need
Connecticut N not a policy but will defer when larger scale main is anticipated in area.
Impact of defer is considered.
Delaware but only if repVrehab is upcoming
Florida
Georgia
Hawaii n
Idaho
Illinois
Indiana
Iowa n
Kansas
Kentucky Not a fommal policy funding based
Louisiana Y money
Maine Life cycle costs
Maryland Limited funds and manpower cone. on those activities that impove qtr. cap
and maintain current accept level
Massachusetts x
Michigan Only for large projects, then minimal money spent til funded
Minnesota no written policy, but traffic consid and limited funds make this practice
essential
Missouri If rehab or repl is ached. for near future
70
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Synthesis 257 survey responses
Defff Deferral criteria
Montana Y If bridge is in program or planned to be replaced
:~ ~
Nevada If rehab or repl is ached. for near future
New Jersey Cost and if future rehab/repl planned
New York N May deferred because of priorites, lack of funds, but sch work but no formal
policy
New Hampshire Y Depends if on 10 yr plan and where
New Mexico N
North Carolina
North Dakota Amount of funding available
Ohio If other work is scheduled, such as 4 laning will delay br work until then.
Oklahoma Defer paint if sch for repl within 10 years
Oregon Cost
Pennsylvania Y age condition, nut. repl/rehab. Many deferre til funding becomes avail.
Rhode Island
Soup Dakota Y If sch. for repl, minimal mains performed to provide for public safety.
South Carolina Manpower and funding
Tennessee Age, cond and costs balanced against when funding available for repVrehab
Texas
Utah Y to the planning of other projects in the area
Vermont x
Virginia ~
.
Washington Y
Washington, DC
West Virginia Y Funding
Wisconsin
Wyoming If br is be rehab/repl in 5 years, main. is deferred
Alberta Disruption to public, safety considerations, mobilization.inc. costs from
deferral
71
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Synthesis 257 survey responses
Defer Deferral criteria
British Columbia Y Avail of funds or other act. that would preclude, destroy or compromise
coating system.
Prince Edward Island
Quebec
Yukon Territories
New Brunswick Y May be deferred to coincide with other maintenance activities.
Ontario Y Avail. of fund, other work in area importanc of str, traffic vol and detours
avail.
Newfoundland Y funding
Nova Scotia
Saskatchewan Y Structure age, cost benefit risk to public
Manitoba
Northwest Territories
72
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Synthesis 257 survey responses
MAJOR VS. REHAB VS. REPLACEMENT
Alabama High cost, ser factors enter the decision
Alaska use of specialized br. repair News and materials. rehab and repl would be by contract
Arizona Marjor mains is when repla is not an option.
Arkansas Costly act. Maj main only restores, not improves.
California Maj done by contract. Rehab is to improve exist. coed. std and capacity Repl is to repl exist. str which is below coed. rating
Colorado
Connecticut Maj = work unable to completed by st. forges alone. Once identifiedd, scope is determined by const and design forces
Delaware
Florida
Georgia | maj = modularjt repl.,deck repl. Tic Rehab me ns bring whole structure up to standards
Hawaii
Idaho
Illinois < $25000 done in house. Contrac main < $150000. Rehab usu exceeds $150000. repl is by contract
Indiana activity state forces cannot do
Iowa n/a
Kansas Maj = Maint done by contract . Rehab and repl = difffunding category
Kentucky Maj mains does not result in upgrading structure
Louisiana
Maine Maint. Repairs a sp. deficiency. Rehab will restore to acceptable standard which may be an improvement over origial design
Maryland Maj= act perfommed to preserve existing qtr. Rehab = deck and parapet repl. widenings, substr or superstr repl. Replacement= all existing components
Massachusetts
Michigan Spot paint and topcoat entir qtr. On small qtr. br. mains Rev might clean and paint entire bridge
Minnesota Maj = utilization of larger than nommal portion of labor resoruce does not directly relate to extent of work on a particular str
Missouri Painting entire supastr. without any rehab would be mad. maintenance because of removal of exist. paint
Montana Maj work that state forges can't do
Nebraska
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Synthesis 257 survey responses
MAJOR VS. REHAB VS. REPLACEMENT
Nevada Maj = no altering of orig. design and contracting of work(>$50,000)
New Jersey Maj = replacement in kind while rehab. Ben is an improvement
New York | extent, nature and mst det categ. Maint only pi belly adders of elements whereas rehab/repl address all some overlap
New Hampshire Maj = widening, new deck: rehab = new curb and rail, jt repl. Repl. = new qtr.
New Mexico an act that can't done solely by st. forces, usu only certain elements worked. under rehab all deficincies are corrected.
North Carolina repl or repair is a major qtr. component
: ~do not do mad. Maint. rehab would be blast clean and repaint
Ohio Major = deck overlay with a specialty concrete. Deck repl and/or widening = rehab.
Oklahoma Typically substructure repair
Oregon
Pennsylvania Maj main.= work too intensive for st. forces, but is still considered a mains. act
Rhode Island
South Dakota work done by st. forces mad work needed due to accident or natural disaster, regionide scope of work sched. for qualifying strs.
South Carolina Maj = activity which cannot be performed by st. forces but nec to maintain str safety and capability
Tennessee Maj= work approaching 50 60% of repl without widening to meet current stds. Rehab= repairs and rennovation including increased width to bring qtr. to NBIS
80 sufficiency rating.
Texas
Utah scope of work and cost
Vermont | do not d6tinqursh
Virginia
Washington Act. over $15000. Rehab and repl done by contract
Washington, DC
West Virginia Mar= cleaning and painting minor repair. Rehab = replacing one or more members and making qtr. stronger
Wisconsin
Wyoming Rel. cost: rehab is never coside to incl repl, only work done to existing qtr.
Alberta ~ $50000 cost incl rehab or repl as option
British Columbia rel cost is sole diffbet major and minor rehab involves qtr. modification. Repl is where cost and othe cosideration make new enhanced qtr. more efficient
Prince Edward Island
Quebec |
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Synthesis 257 survey responses
MAJOR VS. REHAB VS. REPLACEMENT
Yukon Territories l
Ne~vBrunr,~vick | Maj =such things as replacing mainstr. memo r, jackingto rapt bearings. nailing is detened and minimal work done |
Ontario | Maj work done under a capital program oontnu Routine main covered under main. funding which is very variable in commitment l
Newfoundland
Nova Scotia
Saskatchewan | Maj mains only addresses one bridge deficient rrhab/repl addresses more than one defiencey l
Manitoba
Northwest Territories
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Synthesis 257 survey responses
Research responses
Limited evaluation of compositional formulations and proprietary coatings
Field evaluation of metallizing and organic zinc; informal evaluation of zinc rich and overcoat materials
California
Connecticut
Delaware
Georgia
Illinois
Evaluation of MCU and proprietary grease for bearings: determined Calcium Sulfonate system too soft
Adhesion tests on inorganic zinc
Comparing Calcium Sulfonate, MCU, PU, MIO, Epoxy sealers, Epoxy Mastics and acrylic water borne topcoats to standard
SSPC alkyd
Extensive 6 year evaluation of overcoating
Informal evaluation of overcoating
Experimental project evaluation of Calcium Sulfonate and epoxy Mastic
Participated in Ocean City/FHWA research project on overcoating and has a 3 year overcoating evaluation underway
Numerous weathering steel reports included
35 systems applied to Mathis Bridge
VOC compliant systems evaluated at Manteo and Overcoat at Manns Harbor, See report in Journal of Protective Coatings
and Linings, May, 1995, pp. 23-29
Evaluating MIO MCU and overcoating
Included ratings on accelerated performance study of 5 proprietary systems and field evaluation of 7 overcoating systems.
Conclusions not reported
Continuous ongoing performance panel testing of various materials
Research analysis of plastic flame coat and metallizing underway
Evaluating use of clear epoxy sealers for use on weathering steel to seal out moisture
l
Evaluation of multiple overcoat systems on poorly adhered existing paint
Coating project to isolate galv. baseplates from caustic grouts
Coatings are field tested prior to inclusion on approved list
L ab evaluation of overcoat materials with test patches on bridges
Kentucky
Maryland
Missouri
New Hampshire
Michigan
New Jersey
Norm Carolina
North Dakota
Oklahoma
Oregon
Pennsylvania
Washington
Virginia
Alberta
British Columbia
Ontario
76
Representative terms from entire chapter:
nchrp web