diff --git a/prereise/gather/griddata/hifld/const.py b/prereise/gather/griddata/hifld/const.py
index 47512d6fa..f7b82cfad 100644
--- a/prereise/gather/griddata/hifld/const.py
+++ b/prereise/gather/griddata/hifld/const.py
@@ -533,6 +533,36 @@
         "NAME": "AES Cogeneration",
         "STATE": "TX",
     },
+    {
+        "LATITUDE": 27.927,
+        "LONGITUDE": -97.182,
+        "NAME": "Aransas Pass",
+        "STATE": "TX",
+    },
+    {
+        "LATITUDE": 27.679,
+        "LONGITUDE": -97.272,
+        "NAME": "Corpus Christi Albacore St",
+        "STATE": "TX",
+    },
+    {
+        "LATITUDE": 29.564,
+        "LONGITUDE": -98.262,
+        "NAME": "Schertz",
+        "STATE": "TX",
+    },
+    {
+        "LATITUDE": 28.702,
+        "LONGITUDE": -96.949,
+        "NAME": "Bloomington Rd",
+        "STATE": "TX",
+    },
+    {
+        "LATITUDE": 33.666,
+        "LONGITUDE": -95.506,
+        "NAME": "Pine Mill Rd (Paris, TX)",
+        "STATE": "TX",
+    },
 ]
 
 substations_lines_filter_override = {301995}
@@ -707,6 +737,12 @@
 line_voltage_assumptions = {
     128842: 230,
     302300: 138,
+    307339: 138,
+    307571: 138,
+    308478: 138,
+    309961: 138,
+    310327: 138,
+    310857: 138,
     312844: 138,
 }
 
diff --git a/prereise/gather/griddata/hifld/data/line_assumptions.csv b/prereise/gather/griddata/hifld/data/line_assumptions.csv
index aa792e58c..bb9afd9f1 100644
--- a/prereise/gather/griddata/hifld/data/line_assumptions.csv
+++ b/prereise/gather/griddata/hifld/data/line_assumptions.csv
@@ -18,71 +18,192 @@ branch_id,kV,circuits,conductors,notes
 203383,230,1,2, Midpoint to Boise Bench
 300023,138,1,2," Southeast of Houston, TX"
 300029,69,2,1, Ormat Brawley geothermal
+300101,138,1,2, TH Wharton Generating Station
+300125,138,2,2,Carrollton (TX)
 300151,138,2,2, South of Lake Arlington (TX)
 300181,138,2,1, Tomball to Pinehurst (TX)
+300225,138,1,2,Corpus Christi (TX)
 300342,138,1,2, W.A. Parish Generating Station
+300374,138,1,2,San Antonio (TX)
+300437,138,1,2,North San Antonio
+300481,138,1,2,South Houston (TX)
+300498,138,1,2,Los Fresnos (TX)
 300872,138,1,2, North of Jersey City (TX)
+301017,138,1,2, Northwest of Houston
+301082,138,1,2,Houston (TX)
+301247,138,1,2,Ingleside (TX)
+301275,138,1,2,CPS Energy Braunig Power Station
 301320,138,2,2, Collin/Frisco substation connection
+301344,138,1,2,San Antonio (TX)
+301666,138,1,2,East of DFW airport
+301741,138,1,2,Austin (TX)
+301814,138,2,2,Sunnyvale (TX)
 301847,115,1,2, Coso Power Station
+301891,138,2,2,The Colony (TX)
+301933,138,1,2,Chocolate Bayou to Danbury (TX)
+302082,69,1,2,Victoria (TX)
 302122,69,1,2, Copperas Cove (TX)
-302300,138,1,2, Northwest of Houston
+302230,138,1,2, W.A. Parish Generating Station
+302236,138,1,2,San Marcos (TX)
+302238,138,1,2,Austin (TX)
+302287,138,2,2,Fresno (TX)
+302300,138,2,2, Northwest of Houston
+302389,138,1,2,Haltom City (TX)
+302404,138,2,2, TH Wharton Generating Station
+302532,138,1,2, Northwest of Houston
 302592,138,1,2, Northwest of San Antonio
+302731,138,1,2,Athens (TX)
 302842,138,2,1, General Motors (Arlington TX)
+302954,138,2,2,Corpus Christi (TX)
+303007,138,2,1,Lake Hubbard Generating Station
 303094,138,2,2, W.A. Parish Generating Station
-303467,138,1,2, Southeastern Houston
+303225,138,1,2,Wharton (TX)
+303259,138,1,2,Austin (TX)
+303266,138,1,2,Dallas (TX)
+303268,138,1,2,East of DFW airport
+303326,69,2,2,Paris (TX)
+303395,138,1,2,Edinburg (TX)
+303467,138,2,2, Southeastern Houston
 303493,138,1,2, Northwest of San Antonio (TX)
+303500,138,1,2,Corpus Christi (TX)
 303557,138,2,2, West Levee substations connection Dallas
 303566,138,2,1, General Motors (Arlington TX)
-304048,69,2,1, Southeast of San Antonio
+303602,138,1,2,Victoria (TX)
+303615,138,1,2,Odessa (TX)
+303623,138,2,1,Lake Hubbard Generating Station
+304022,69,1,2,Corpus Christi (TX)
+304039,138,2,1, General Motors (Arlington TX)
+304048,69,2,2, Southeast of San Antonio (connects two 345 kV buses)
+304064,138,1,2,Austin (TX)
+304085,69,1,2,Milby Park Houston (TX)
+304089,69,1,2,Victoria (TX)
 304142,138,1,2, Western Fort Worth
-304145,138,1,2, Edinburg (TX)
+304145,138,2,2, Edinburg (TX)
+304214,69,2,2,substation connection west of Corpus Christi (TX)
+304289,138,1,2,Chocolate Bayou to Danbury (TX)
+304841,138,1,2,Austin (TX)
+304515,138,1,2,Wharton (TX)
+304602,69,1,2,Guadalupe Energy Center
 304613,138,4,2, San Benito substation connection South Texas
+304645,69,2,2,Weatherford (TX)
+304673,138,1,2,Temple (TX)
 304779,69,1,2, Handley Power Plant (Lake Arlington TX)
 304908,69,2,1, Heber geothermal
-305018,138,2,2, TH Wharton Generating Station
+305018,138,4,2, TH Wharton Generating Station
+305145,138,1,2,Chocolate Bayou (TX)
 305273,138,1,2, West of Houston (TX)
 305277,69,2,1, Mineola to Lindale (TX)
+305364,138,1,2,Corpus Christi (TX)
+305446,138,1,2,Ingleside (TX)
 305464,230,2,2, The Geysers
 305635,138,1,2, Dallas (TX)
 305640,138,1,2, Lewisville (TX)
+305647,138,1,2,Edinburg (TX)
+305667,138,2,1,Houston (TX)
 305694,138,1,2, Laredo (TX)
 305806,138,1,2, Southeast of Austin (TX)
+305810,138,1,2,Chocolate Bayou to Danbury (TX)
+305812,138,1,2,Selma (TX)
+305871,138,1,2,Pasadena (TX)
 305912,138,1,2, Calaveras Power Station to San Antonio
 305990,100,2,1, southeast Salton Sea geothermal plants several
-306350,69,2,1, Elm Mott (TX)
-306360,138,2,1, Santa Clara (TX)
+306124,138,1,2,Bayside (TX)
+306339,138,1,2,Chocolate Bayou to Danbury (TX)
+306350,69,2,2, Elm Mott (TX)
+306354,138,1,2,CPS Energy Braunig Power Station
+306360,138,2,2, Santa Clara (TX)
+306363,138,1,2,Temple (TX)
+306384,138,1,2,Corpus Christi (TX)
 306568,69,2,1, Geothermal in the Brawley region
+306580,138,2,1,Lake Hubbard Generating Station
+306661,138,1,2,San Antonio (TX)
+306707,138,1,2,Houston (TX)
 306879,138,2,2, Northeast Dallas metro (TX)
 306949,230,2,2, The Geysers
+307281,138,2,2,Corpus Christi (TX)
+307421,138,1,2,San Marcos (TX)
+307491,69,2,2,substation connection at Jack County power plant near Bridgeport (TX)
+307496,138,1,2,Edinburg (TX)
+307497,138,1,2,Mont Belvieu (TX)
+307502,138,2,2,Below DFW airport
 307569,230,2,2, The Geysers
+307605,138,1,2,Mitchell Lake (TX)
+307682,138,2,1,Midlothian (TX)
+307764,138,1,2,Fresno (TX)
+307910,138,2,2,The Colony (TX)
+308057,69,1,2,Padre Island (TX)
 308233,138,1,2, West of Houston (TX)
 308278,138,1,2, North of Jersey City (TX)
 308281,138,1,2, South of Austin (TX)
 308363,138,1,2, North of Corpus Christi (TX)
 308434,230,2,2, The Geysers
 308359,69,1,2, Comstock to Sheffield (TX)
+308454,138,2,1,Pfugerville (TX)
 308529,345,1,3, East of Austin (TX)
+308606,138,1,2,Edinburg (TX)
 308740,69,1,2, Southeast of Austin (TX)
 308885,69,2,1, Geothermal in the Brawley region
+309028,138,1,2,Austin (TX)
+309097,138,1,2,Edinburg (TX)
+309131,138,1,2,Pasadena (TX)
+309210,138,1,2, TH Wharton Generating Station
+309241,138,1,2,Northeast Dallas
 309268,69,2,1, Ormat Brawley geothermal
+309434,138,1,2,Chocolate Bayou to Danbury (TX)
 309441,69,2,2, substation connection near Lake Creek Reservoir outside Waco (TX)
+309536,138,1,2,Austin (TX)
+309664,69,2,1,Aransas Pass (TX)
 309745,138,1,2, Killeen (TX)
 309802,138,1,2, McAllen (TX)
+309840,115,1,2,Hearne (TX)
+309845,138,2,2,Carrollton (TX)
 309901,138,1,2, East of Austin (TX)
 309966,138,2,2, Garfield to Pilot Knob south of Austin
-310247,138,1,2, Corpus Christi to Victoria (TX)
+310064,138,2,2,West of DFW airport
+310247,138,2,2, Corpus Christi to Victoria (TX)
+310327,138,1,2, TH Wharton Generating Station
+310484,345,1,3,North of Laredo (TX)
+310531,138,1,2,Sunset Valley (TX)
+310651,69,2,2,substation connection at Jack County power plant near Bridgeport (TX)
+310895,138,1,2,Tenaska Gateway Generating Station
+310982,138,1,2,Texas City (TX)
+311021,345,2,2,North of Edinburg (TX)
+311090,138,1,2,Pasadena (TX)
+311113,138,1,2,Tomball (TX)
+311189,138,1,2,South Houston (TX)
+311229,138,1,2,Wharton (TX)
+311292,138,1,2,Edinburg (TX)
+311291,138,1,2,Austin (TX)
 311306,69,2,2, substation connection near Lake Creek Reservoir outside Waco (TX)
 311321,138,1,2, Southwest of Houston (TX)
+311385,138,1,2,Temple (TX)
+311620,69,1,2,Padre Island (TX)
 311935,138,1,2, Northwest of San Antonio (TX)
+311975,138,1,2,Haltom City (TX)
+312147,138,1,2,Alvin (TX)
 312199,69,2,1, Geothermal in the Brawley region
 312241,100,2,1, southeast Salton Sea geothermal plants several
 312327,138,1,2, South of Austin (TX)
+312342,138,1,2,Schertz (TX)
 312375,138,1,2, West of Houston (TX)
+312397,138,2,2,Corpus Christi (TX)
+312514,138,1,2,Mountain Creek Lake (TX)
 312549,69,2,1, Victoria (TX)
-312694,138,1,2, Edinburg (TX)
+311586,69,1,2,Jacinto City (TX)
+312589,138,1,2,Pearland (TX)
+312651,138,1,2,Pasadena (TX)
+312694,138,2,2, Edinburg (TX)
+312760,138,1,2,substation connection west of Mont Belvieu (TX)
+312797,138,1,2,Dallas (TX)
+312853,138,1,2,Mitchell Lake (TX)
 312856,138,1,2, North of Austin (TX)
+312970,138,1,2,Hillcrest (TX)
 312996,69,2,1, Copperas Cove (TX)
 313183,69,2,1, Athens (TX)
+313294,138,1,2,Tomball (TX)
+313297,138,1,2,West Houston
+313305,138,1,2,substation connection east of Nacogdoches
 313473,69,2,2, Holtville geothermal?
 313474,69,2,2, Holtville geothermal?
+313730,138,1,2,Killeen (TX)
 315402,69,2,1, Unknown MST edge
diff --git a/prereise/gather/griddata/hifld/data/line_designs.csv b/prereise/gather/griddata/hifld/data/line_designs.csv
index 44eb0588b..957ade339 100644
--- a/prereise/gather/griddata/hifld/data/line_designs.csv
+++ b/prereise/gather/griddata/hifld/data/line_designs.csv
@@ -23,6 +23,7 @@ voltage,circuits,bundle_count,conductor,spacing,a0x,a0y,b0x,b0y,c0x,c0y,a1x,a1y,
 230,4,3,Drake,0.5,-7,20,0,20,7,20,18,20,25,20,32,20,43,20,50,20,57,20,68,20,75,20,82,20,Four parallel H-frames
 345,1,2,Falcon,0.5,-8,25,0,25,8,25,,,,,,,,,,,,,,,,,,,H-frame design
 345,1,3,Falcon,0.5,-8,25,0,25,8,25,,,,,,,,,,,,,,,,,,,
+345,2,2,Falcon,0.5,-20,25,-12,25,-4,25,4,25,12,25,20,25,,,,,,,,,,,,,Two parallel H-frames
 500,1,3,Rail,0.5,-10,30,0,30,10,30,,,,,,,,,,,,,,,,,,,lattice
 500,2,3,Drake,0.5,-5,40,-8,30,-5,20,5,20,8,30,5,40,,,,,,,,,,,,,lattice
 765,1,4,Martin,0.5,-15,40,0,40,15,40,,,,,,,,,,,,,,,,,,,H-frame design