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NHDOT MX String Label Convention (v8i)
(Alphabetical Listing by String Label)

String Description: String Label: Style Set:
Building name *BD
Cemetery name *CM
County name *CT
Dam name *DM
Aerial Text - Dense Trees *DT
Spot elevations *E
General name *GN
Aerial Text - Grid *GR
Miscellaneous name *MS
Ocean name *OC
Pipeline name *PI
Pole numbers *PL
Pool text *PO
Road names *RD
Railroad name *RR
River name *RV
State name *ST
Town name *TW
Transmission line/Aerial electric lines AE EXD, Topo
Athletic Field AF EXD, Topo
Asphalt Pad - Aerial AP EXD, Topo
Building - Aerial BA EXD, Topo
Bridge abutment - Bottom BB Topo
County line BC ERW8
Building sill BD Topo
Building at ground BE EXD, Topo
Exposed bridge footing - Bottom BF Topo
Bridge deck BG EXD, Topo
Headwall, culvert end - Bottom BH Topo
Pier - Bottom BJ Topo
Arch - Bottom BK Topo
Beam guard rail - Left BL EXD, Topo
Berm BM EXD, Topo
National forest line BN ERW8
Property line BP ERW8
Beam guard rail - Right BR EXD, Topo
Right-of-way, controlled access BRC ERW8
Right-of-way, limited access BRL ERW8
Right-of-way line BRW ERW8
Right-of-way line, additional label BRX ERW8
Bottom of slope BS Topo
Bottom of slope - Pit surveys BS Topo
State line BSL ERW8
Town line BT ERW8
Boundary String BY Topo
Index contour - Approximate CA CTR8
Curb Bottom - Aerial   CB EXD, Topo
Index contour - Approx. depression CB CTR8
Index contour - Depression CD CTR8
Curb - Left CL EXD, Topo
Cemetery CM EXD, Topo
Center of road CO EXD, Topo
Concrete Pad (gas station island; etc.) CP EXD, Topo
Curb - Right CR EXD, Topo
Index contour - Standard CS CTR8
Culvert - Aerial Mapping CU EXD, Topo
Dam - bottom DB Topo
Double face beam guard rail DF EXD, Topo
Deck - Aerial DK EXD, Topo
Ditch line DL Topo
Dam - Top DM EXD, Topo
Drainage pipe (Survey: use IGL for dir. shots) DP EXD, Topo
Driveway DR EXD, Topo
Magnetic detector sleeve DS EXD, Topo
Driveway Unpaved - Aerial DU EXD, Topo
Edge of Gravel Road EG EXD, Topo
Expansion joint EJ EXD, Topo
Edge of pavement EP EXD, Topo
Stream or river flow arrow - Aerial FA
Fence - Barbed wire FB EXD, Topo
Foundation/Ruin FD EXD, Topo
Miscellaneous detail features - Feature string FM EXD, Topo
Fence Other FO EXD, Topo
Gate GA EXD, Topo
Grid - Aerial GD EXD, Topo
Cable guard rail - Left GL EXD, Topo
Gas pumps GP EXD, Topo
Cable guard rail - Right GR EXD, Topo
Gravel Shoulder - Aerial GS EXD, Topo
Hedge HE EXD, Topo
High water mark HW EXD, Topo
Intelligent Transportation Systems IT EXD, Topo
Jersey barrier JB EXD, Topo
Obscured Tank - Aerial KO EXD, Topo
Level string L Topo
Level string - Pit surveys L Topo
Street light conduit LC EXD, Topo
Leachfield LF EXD, Topo
Lane markings LM EXD, Topo
Limit of pit - Pit surveys LP Topo
Limit of work - Pit surveys LW Topo
Back of Curb - Aerial NC EXD, Topo
Obscured Back of Curb - Aerial ND EXD, Topo
Back of Curb - No Elevation Change from Bottom - Aerial NE EXD, Topo
Obscured Railroad - Aerial NO EXD, Topo
Obscured area - Aerial OA EXD, Topo
Obscured area of bridge - Aerial OB EXD, Topo
Obscured Curb - Bottom Right - Aerial OC EXD, Topo
Obscured Drive - Aerial OD EXD, Topo
Obscured Shoulder - Aerial OE EXD, Topo
Obscured Fence - Aerial OF EXD, Topo
Old ground - Pit surveys OG Topo
Obscured Guardrail - Aerial OH EXD, Topo
Obscured Structure - Aerial OI EXD, Topo
Obscured Wall - Aerial OJ EXD, Topo
Obscured Deck - Aerial OK EXD, Topo
Obscured Lane Marking - Aerial OL EXD, Topo
Obscured Misc. Object - Aerial OM EXD, Topo
Obscured Sign - Aerial ON EXD, Topo
Obscured Concrete Pad - Aerial OO EXD, Topo
Obscured Pavement - Aerial OP EXD, Topo
Obscured Pool - Aerial OQ EXD, Topo
Ornamental features (flower beds; etc.) OR EXD, Topo
Obscured Sidewalk - Aerial OS EXD, Topo
Obscured Headwall - Aerial OT EXD, Topo
Obscured Culvert - Aerial OU EXD, Topo
Obscured Wetland - Aerial OW EXD, Topo
Obscured Water - Aerial OX EXD, Topo
Obscured Ramp/Dock - Aerial OY EXD, Topo
Guy wire anchors PANC EXD, Topo
Parking Meter PARK EXD, Topo
Boulder PBDR EXD, Topo
Bench mark, Survey disk PBMK EXD, Topo
Bound PBND EXD, Topo
Boring, Test Pit PBOR EXD, Topo
PBRK Strings PBRK Topo
Public telephone PBTH EXD, Topo
Bush PBUS EXD, Topo
Catch basin top PCBD EXD, Topo
Obscured Catch Basin - Aerial PCBO EXD, Topo
Controller cabinet PCCT EXD, Topo
Bound other Discontinued Sep '13, Use PBND PCON EXD, Topo
Camera Pole New Jan '13 PCPC EXD, Topo
Satellite dish PDAT EXD, Topo
Drill hole PDHL EXD, Topo
Drop inlet top PDID EXD, Topo
Obscured Drain - Aerial PDIO EXD, Topo
Elevation Point Aerial PDTM EXD, Topo
Bridge spot elevations PEBV Topo
Elevation Point Survey PELV Topo
Elevation Point Survey - Not at Ground  PEVV Topo
Fiber Optic Delineator New Jan '13 PFDD EXD, Topo
Flushing Basin PFLS EXD, Topo
Flag pole PFPL EXD, Topo
Obscured Flagpole - Aerial PFPO EXD, Topo
Fence Post - Aerial PFPS EXD, Topo
Fuel Tank PFTK EXD, Topo
Fire tower Removed May '08 PFTR
Gas pump PGAS EXD, Topo
Ground light/yard light PGLT EXD, Topo
Gate post Use PPST, June '09 PGPT EXD, Topo
Gravestone PGRV EXD, Topo
Gas shutoff PGSO EXD, Topo
Guy pole or stub PGUY EXD, Topo
Handhole Discontinued June '10, use PPBX PHHL EXD, Topo
Fire hydrant PHYD EXD, Topo
Obscured Hydrant - Aerial PHYO EXD, Topo
Iron pin or pipe PIPN EXD, Topo
ITS Equipment Cabinet New Jan '13 PITS EXD, Topo
Junction box PJCT EXD, Topo
Joint power and telephone pole PJNT EXD, Topo
Light pole PLIT EXD, Topo
Lamp post PLPT EXD, Topo
Obscured Lightpole - Aerial PLPO EXD, Topo
Light on joint pole PLTJ EXD, Topo
Light on power pole PLTP EXD, Topo
Mast arm pole PMAP EXD, Topo
Bridge miscellaneous detail features - point string PMBF EXD, Topo
Mail box PMBX EXD, Topo
Miscellaneous detail features - Point string PMDF EXD, Topo
Manhole - Drainage PMHD EXD, Topo
Manhole - Electric PMHE EXD, Topo
Manhole - Gas PMHG EXD, Topo
Obscured Manhole - Aerial PMHO EXD, Topo
Manhole - Sewer PMHS EXD, Topo
Manhole - Telephone PMHT EXD, Topo
Manhole - Unknown PMHU EXD, Topo
Manhole - Water PMHW EXD, Topo
Monuments/statues or other related items PMON EXD, Topo
Meter Pedestal PMTR EXD, Topo
Miscellaneous detail features - Not at Ground PMVF EXD, Topo
Monitoring Well PMWL EXD, Topo
Obscured Pole - Aerial POPL EXD, Topo
Obscured Post - Aerial POPS EXD, Topo
Pullbox PPBX EXD, Topo
Horizontal Vertical Control - Aerial PPHV EXD, Topo
Pole PPOL EXD, Topo
Post - all types PPST EXD, Topo
Tower - all types PPTR EXD, Topo
Power pole PPWR EXD, Topo
Project marker PRJM EXD, Topo
ROW bound, SSD PROW Topo
Railroad signal PRSL EXD, Topo
Railroad sign PRSN EXD, Topo
Railroad switchstand PRSW EXD, Topo
Scupper PSBD EXD, Topo
Traffic signal without mast arm PSGL EXD, Topo
Sign - Single post PSGN EXD, Topo
Obscured Sign - Aerial PSGO EXD, Topo
Sill point PSIL Topo
State line marker PSLM EXD, Topo
Sign - Double post PSND EXD, Topo
Obscured Traffic Signal - Aerial PSOL EXD, Topo
Survey traverse string PSSA TRAV
Septic Tank PSTK EXD, Topo
Stump PSTP EXD, Topo
Storage tank fill cap PSTT EXD, Topo
Catch basin/Drop inlet sump PSUM Topo
Swamp symbol PSWP EXD, Topo
Fiber Optic Splice Vault New Jan '13 PSVF EXD, Topo
Tree - Coniferous PTCS EXD, Topo
Tree - Deciduous PTDS EXD, Topo
Telephone/telegraph pole PTEL EXD, Topo
Town line marker PTLM EXD, Topo
Test pit  Removed Dec. '08, Use PBOR PTPT EXD, Topo
Tree from Aerial Mapping - Aerial PTR1 EXD, Topo
Vent pipe - Outlet PVNT EXD, Topo

Variable Speed Limit sign New Jan '13

PVSL EXD, Topo
Well PWEL EXD, Topo
Water gate PWGT EXD, Topo
Pedestrian Signal Pole PWLK EXD, Topo
Water shutoff PWSO EXD, Topo
Pool QP EXD, Topo
Lumber stockpile Removed Jan. '09, Use SO QS EXD, Topo
Ridge line RD EXD, Topo
Rock outcrop Right RK EXD, Topo
Ramp - Boat; etc. RM EXD, Topo
Rock outcrop Left RO EXD, Topo
Rip-rap RP EXD, Topo
Railroad RR EXD, Topo
Retaining wall - Left ---^---^--- RL EXD, Topo
Retaining wall - Right ---v---v--- RW EXD, Topo
Sound Wall SA EXD, Topo
Signal conduit SC EXD, Topo
Loop detector SD EXD, Topo
Storage tanks SG EXD, Topo
Sidewalk / Patio SK EXD, Topo
Shore line - Left SL EXD, Topo
Sign - Billboard or other large sign (string feature) SN EXD, Topo
Stockpile SO EXD, Topo
Stockpile - Pit surveys SO EXD, Topo
Steps SP EXD, Topo
Obscured Steps - Aerial SQ EXD, Topo
Shore line - Right SR EXD, Topo
Intermittent or small stream ST EXD, Topo
Sluiceway SU EXD, Topo
Stone wall SW EXD, Topo
Bridge abutment - Top TB EXD, Topo
Curb - Top TC EXD, Topo
Obscured Top of Curb - Aerial TD EXD, Topo
Top of Curb - No Elevation Change from Bottom - Aerial TE EXD, Topo
Exposed bridge footing - Top TF EXD, Topo
Headwall - Top TH EXD, Topo
Tank - Aerial TK EXD, Topo
Trail TL EXD, Topo
Transmission Tower - Aerial TN EXD, Topo
Obscured Trail - Aerial TO EXD, Topo
Pier - Top TP EXD, Topo
Retaining wall - Top TR EXD, Topo
Retaining Walls - Aerial TR EXD, Topo
Top of slope TS Topo
Top of slope - Pit surveys TS Topo
Edge of traveled way TW EXD, Topo
Underground Cable TV UC EXD, Topo
Underdrain Discontinued Mar '10, use DP UD EXD, Topo
Underground Electric UE EXD, Topo
Underground Fire Alarm UF EXD, Topo
Underground Gas UG EXD, Topo
Obscured Utility - Aerial UO EXD, Topo
Underground Fiber Optic UP EXD, Topo
Underground Sewer US EXD, Topo
Underground Telephone UT EXD, Topo
Underground Water UW EXD, Topo
Invasive Species VA ENV8, Topo
TOB VB ENV8, Topo
OHW VH ENV8, Topo
OHT VK ENV8, Topo
MHT VM ENV8, Topo
TOBOHW VO ENV8, Topo
Vernal Pool VP ENV8, Topo
Prime Wetland VR ENV8, Topo
Special Aquatic Site VS ENV8, Topo
HOTL VT ENV8, Topo
TBZ VZ ENV8, Topo
Swamp/marsh or wet area WA EXD, Topo
Wing wall - Bottom WB Topo
Wetland Delineated WD ENV8, Topo
Waterfall WF EXD, Topo
Woods line or brush line - Left WL EXD, Topo
Woods line or brush line - Right WR EXD, Topo
Waste - Pit surveys Removed Jan. '09, Use SO WS Topo
Wing wall - Top WT EXD, Topo
Break Lines - Aerial X EXD, Topo
Intermediate contour - Approximate ZA CTR8
Intermediate contour - Approx. depression ZB CTR8
Intermediate contour - Depression ZD CTR8
Intermediate contour - Standard ZF CTR8

Related Pages

Topical listing

Design String Naming Convention





New Hampshire Department of Transportation
PO Box 483 | 7 Hazen Drive | Concord, NH | 03302-0483
Tel: 603.271.3734 | Fax: 603.271.3914

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