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115 kV Overhea d Ro ute a nd 230 kV Overhea d Alterna tive Ro utesUnd ergro und Optio nBa rnha rd t Optio n 1Ba rnha rd t Optio n 2Tra nsitio n Sta tio ns 0 1,000 2,000

Feet

Line #65 115 kV Rebuild at Norris BridgeDominion Virginia PowerPro ject Overview Ma p

an ERM Gro up c o m pa ny

115 kV Overhea d Rebuild Ro ute Alterna tive (To ta l Line Miles 2.2)• Repla c e 2.2 Miles o f Aging Single Circuit Tra nsm issio n Line with 2.2 Miles o f Struc tures tha t Ma inta in 115 kV Clea ra nc es• La nc a ster Co unty: Rem o ve a nd Repla c e 1 Existing La nd Ba sed W o o d en 3-Po le Structure with a Ga lva nized Steel 3-Po le Struc ture • Mid d lesex Co unty: Rem o ve a nd Repla c e 4 Existing, La nd Ba sed W o o d en Mo no po le Struc tures with 1 Ga lva nized Steel Mo no po le a nd 2 W ea thering Steel Mo no po les• River Cro ssing: Rem o ve 7 W o o d en H-Fra m e Structures a nd 14 Structures Atta c hed to the Ro b ert O. N o rris Brid ge a nd Repla c e with 10 Ga lva nized Steel H-fra m e Struc tures• N ew Right-o f-W a y N eed ed in the River

230 kV Overhea d Reb uild Ro ute Alterna tive (To ta l Line Miles 2.2)• Repla c e 2.2 Miles o f Aging Single Circuit Tra nsm issio n Line with 2.2 Miles o f Struc tures tha t Ma inta in 230 kV Clea ra nc es• La nc a ster Co unty: Rem o ve a nd Repla c e 1 Existing La nd Ba sed W o o d en 3-Po le Structure with 1 Ga lva nized Steel 3-Po le Struc ture • Mid d lesex Co unty: Rem o ve a nd Repla c e 4 Existing, La nd Ba sed W o o d en Mo no po le Struc tures with 1 Ga lva nized Steel Mo no po le a nd 2 W ea thering Steel Mo no po les• River Cro ssing: Rem o ve 7 W o o d en H-Fra m e Structures a nd 14 Structures Atta c hed to the Ro b ert O. N o rris Brid ge a nd Repla c e with 10 Ga lva nized Steel H-fra m e Struc tures• N ew Right-o f-W a y N eed ed in the River a nd o n La nd in Mid d lesex Co unty

Und ergro und Ro ute Optio n (To ta l Line Miles 2.3)• Repla c e 2.2 Miles o f Aging Single Circuit Tra nsm issio n Line with 2.3 Miles o f Und ergro und Fa c ilities • Tra nsm issio n Line W ill b e Insta lled Und er River V ia Ho rizo nta l Directio na l Drill• Co nstruc t 2 Tra nsitio n Sta tio ns, 1 o n Ea c h Sid e o f the River Cro ssing, to Co nnect the Und ergro und Ca b le to the Existing Overhea d 115 kV Tra nsm issio n Line• N ew Right o f W a y N eed ed o n La nd a nd in the River

115 kV Brid ge Atta c hm ent Optio n (Ba rnha rd t Optio n 1) (To ta l Line Miles 2.3)• Repla c e 2.2 Miles o f Aging Single Circ uit Tra nsm issio n Line with 2.3 Miles o f Prim a rily Ab o vegro und Fa c ilities• Tra nsm issio n Ca b le will b e Insta lled W ithin Fib ergla ss Co nd uits Atta c hed to the Und ersid e o f the Ro b ert O. N o rris Brid ge. • Co nstruct 2 Tra nsitio n Sta tio ns, 1 o n Ea c h Sid e o f the River Cro ssing, to Co nnect the Und ergro und Ca b le to the Ab o vegro und 115 kV Tra nsm issio n Line Und er the Ro b ert O. N o rris Brid ge• N ew Right o f W a y N eed ed o n La nd

Trenc hed Ro ute Optio n (Ba rnha rd t Optio n 2) (To ta l Line Miles 2.4)• Repla c e 2.2 Miles o f Aging Single Circ uit Tra nsm issio n Line with 2.4 Miles o f Und ergro und Fa c ilities• Tra nsm issio n Line W ill b e Insta lled Und er River V ia Jet Plo w W ith Ea c h Co nd ucto r in its Own Sha llo w Trenc h Spa c ed 100' Apa rt • Co nstruct 2 Tra nsitio n Sta tio ns, 1 o n Ea c h Sid e o f the River Cro ssing, to Co nnect the Und ergro und Ca b le to the Existing Overhea d 115 kV Tra nsm issio n Line• N ew Right o f W a y N eed ed o n La nd a nd in the River