| US 77 over Willacy Co Drain | 1984 | 21,276 | Good |
| US 77 NB over Spur 413 | 2003 | 12,122 | Good |
| US 77 NB over FM 1018 | 2003 | 11,862 | Good |
| US 77 SB over FM 1018 | 2003 | 11,862 | Good |
| US 77 SB over Spur 413 | 2003 | 11,862 | Good |
| US 77 NB over FM 498 | 2003 | 11,204 | Good |
| US 77 NB over Hcwid # 1 Main Channel | 2013 | 11,204 | Fair |
| US 77 NB over Spur 112 | 2003 | 11,204 | Fair |
| US 77 SB over FM 498 | 2003 | 11,204 | Good |
| US 77 SB over Hcwid # 1 Main Channel | 2013 | 11,204 | Fair |
| US 77 SB over Spur 112 | 2003 | 11,204 | Good |
| US 77 NB over Spur 56 | 2013 | 10,638 | Good |
| US 77 SB over Spur 56 | 2013 | 10,638 | Good |
| US-77 Nbml over Yturria County Rd | 2020 | 7,800 | Good |
| US-77 Sbml over Yturria County Rd | 2020 | 7,800 | Good |
| US 77 Sbml over Thomas Ranch Rd | 2020 | 7,330 | Good |
| US 77NBML over Thomas Ranch Rd | 2020 | 7,330 | Good |
| US 77 NB over East Main Drain | 2007 | 6,159 | Good |
| US 77 SB over East Main Drain | 2007 | 6,159 | Good |
| US 77 NB over SH 186 | 2007 | 5,788 | Good |
| US 77 SB over SH 186 | 2007 | 5,788 | Good |
| US 77 SB over FM 1762 | 2007 | 5,385 | Good |
| US 77 SB over Raymondville Drain | 2007 | 5,385 | Good |
| US 77 SB over US 77 Bus | 2003 | 5,385 | Good |
| US 77 Sbfr over Hcwid No 1 Main Channel | 1984 | 5,385 | Good |
| US 77 NB over FM 1762 | 2007 | 5,088 | Good |
| US 77 NB over FM 3168 | 2003 | 5,088 | Good |
| US 77 NB over FM 490 | 2003 | 5,088 | Good |
| US 77 NB over Raymondville Drain | 2007 | 5,088 | Good |
| US 77 NB over US 77 Bus | 2003 | 5,088 | Good |
| US 77 Nbfr over Hcwid No 1 Main Channel | 1984 | 5,088 | Good |
| US 77NBML over Wildlife Crossing | 2020 | 4,350 | Good |
| US 77SBML over Wildlife Crossing | 2020 | 4,350 | Good |
| US 77 Bus over Willacy Co Drain | 1984 | 4,200 | Good |
| US 77 SB over FM 3168 | 2003 | 3,490 | Fair |
| US 77 SB over FM 490 | 2003 | 3,490 | Fair |
| SH 186 over West Main Drain | 1975 | 2,976 | Good |
| US 77 Bus over Hcwid No 1 Main Channel | 1984 | 2,150 | Good |
| US 77 SB Fr over Raymondville Drain | 1969 | 1,883 | Good |
| US 77 NB Fr over Raymondville Drain | 1969 | 1,445 | Good |
| FM 1015 over Delta Lake Drain | 1998 | 1,058 | Fair |
| FM 1425 over Raymondville Main Canal | 1980 | 1,025 | Good |
| FM 1015 over North Hargill Drain | 1975 | 954 | Good |
| FM 88 over North Hargill Drain | 1975 | 874 | Good |
| FM 1761 over Old West Main Drain | 2003 | 800 | Good |
| SH 186 over Draw | 1980 | 795 | Good |
| FM 2209 over East Main Drain | 2002 | 750 | Good |
| FM 1761 over Old West Main Drain | 2003 | 658 | Good |
| FM 1425 over HCWID No. 1 MAIN CHANNEL | 1985 | 656 | Fair |
| FM 1420 over N Floodway Pilot Channel | 1968 | 551 | Fair |
| US 77 Bus over West Main Drain | 1952 | 450 | Good |
| FM 507 over N Floodway Pilot Channel | 2003 | 437 | Good |
| FM 1420 over HCWID No. 1 MAIN CHANNEL | 1984 | 416 | Good |
| FM 507 over Hcwid No 1 Main Channel | 1984 | 307 | Good |
| Lily Road over US 77 | 2013 | 250 | Good |
| FM 2845 over HCWID No. 1 MAIN CHANNEL | 1984 | 238 | Good |
| FM 498 over Hcwid No 1 Main Channel | 1984 | 210 | Good |
| FM 1018 over N Floodway Lateral | 1989 | 189 | Good |
| FM 1762 over Drain | 1970 | 187 | Good |
| CR 180 (Spence Rd) over Old West Main Drain | 2024 | 163 | Good |
| FM 2099 over N Main Drain | 1984 | 161 | Good |
| US 77 NB Fr over East Main Drain | 1969 | 148 | Good |
| CR 156 over West Main Drain | 1975 | 122 | Fair |
| Lopez Rd (CR 200) over West Main Drain | 1975 | 113 | Fair |
| US 77 SB Fr over East Main Drain | 1969 | 113 | Good |
| FM 2099 over Hcwid No 1 Main Channel | 1984 | 100 | Good |
| FM 2629 over N Floodway Pilot Channel | 1970 | 100 | Good |
| CR 200 over Old West Main Drain | 2000 | 92 | Fair |
| Sunflower (CR 430) over Willacy Main Drain | 1984 | 71 | Fair |
| Mesquite (CR 1600) over Hidal DD#1 Main Channel | 1983 | 67 | Good |
| Cemetery Rd/cr 315 over East Main Drain | 1975 | 63 | Fair |
| Garcia Rd (CR 380) over East Main Drain | 1975 | 63 | Fair |
| Gardenia (CR 397) over Willacy Main Drain | 1984 | 60 | Fair |
| Cemetery Road over W Hargill Drain Ditch | 1975 | 59 | Fair |
| Holly Rd (CR 2200) over Willacy Main Drain | 1984 | 50 | Fair |
| Simon GOMEZ(CR200) over Hidal DD#1 Main Channel | 1983 | 38 | Good |
| CR 3500 over Old West Main Drain | 2016 | 34 | Good |
| Iris Rd (CR 330) over Hild DD#1 Main Channel | 1984 | 34 | Fair |
| Ramirez Rd(cr 205) over West Main Drain | 1975 | 33 | Fair |
| CR 180 over West Main Drain | 1975 | 29 | Fair |
| Bates Rd (CR 410) over Hidal DD#1 Main Channel | 1984 | 25 | Fair |
| CR 10 over W Hargill Drain Ditch | 1975 | 25 | Fair |
| CR 30 over W Hargill Drain Ditch | 1975 | 25 | Fair |
| CR 3000 over W Hargill Drain Ditch | 1975 | 25 | Fair |
| CR 3000W over W Hargill Drain Ditch | 1974 | 25 | Fair |
| Humphries (CR370) over Willacy Main Drain | 1984 | 25 | Fair |
| Spence Rd(cr 1834) over Hidal DD#1 Main Channel | 1983 | 25 | Fair |
| Valdez Rd (CR 140) over Main Branch NE Canal | 2010 | 25 | Good |
| Zinnia Rd(cr 2100) over Hild DD#1 Main Channel | 1984 | 25 | Fair |
| Bush Rd (CR 3450) over East Main Drain Lateral | 1975 | 24 | Fair |
| Live Oak (CR 345) over Willacy Main Drain | 1984 | 24 | Fair |
| Zinnia Rd(cr 2100) over Willacy Main Drain | 1984 | 24 | Fair |
| Simo Rd (CR 215) over Willacy Main Drain | 1984 | 23 | Fair |
| Rodriguez (CR 415) over East Main Drain | 1975 | 22 | Fair |
| CR 156 over Old West Main Drain | 2018 | 20 | Good |
| CR 330 S over Willacy Main Drain | 1984 | 20 | Fair |
| Goyo Garcia/cr 134 over Delta Lake Drain Ditch | 2000 | 20 | Fair |
| CR 141 over West Main Drain | 1975 | 18 | Fair |
| Jansen Rd (CR 375) over Hidal DD#1 Main Channel | 1984 | 17 | Fair |
| Krupala Rd(cr 450) over Hidal DD#1 Main Channel | 1984 | 17 | Fair |
| Correa Rd (CR 398) over East Main Drain | 1975 | 16 | Fair |
| CR 100 over Main Branch NE Canal | 2010 | 12 | Good |
| Simo Rd (CR 215) over Hidal DD#1 Main Channel | 1983 | 11 | Fair |
| Amaro Rd (CR 340) over East Main Drain | 1975 | 10 | Fair |
| CR 105 over Main Branch NE Canal | 2010 | 10 | Good |
| CR 15 over W Hargill Drain Ditch | 1975 | 10 | Fair |
| CR 202 over Old West Main Drain | 2016 | 10 | Good |
| CR 25 over W Hargill Drain Ditch | 1975 | 10 | Fair |
| CR 384 over West Main Drain | 1984 | 10 | Fair |
| CR 40 over W Hargill Drain Ditch | 1975 | 10 | Fair |
| CR 5 over W Hargill Drain Ditch | 1975 | 10 | Fair |
| CR 60 over W Hargill Drain Ditch | 1975 | 10 | Fair |
| Cactus Rd (CR 315) over Hidal DD#1 Main Channel | 1984 | 10 | Fair |
| Cactus Rd (CR 315) over Willacy Main Drain | 1984 | 10 | Fair |
| Cantu Rd (CR 330) over East Main Drain | 1975 | 10 | Fair |
| Gonzales Rd/cr 169 over East Main Drain | 1975 | 10 | Fair |
| Israel Cavazos Rd over Main East Canal | 2016 | 10 | Good |
| Peach Rd (CR 410) over Willacy Main Drain | 1984 | 10 | Fair |
| Pinson Rd (CR 360) over Hidal DD#1 Main Channel | 1984 | 10 | Fair |
| Santa Margarita Rd over East Main Drain | 1975 | 10 | Fair |
| Zapata Rd (CR 150) over Hidal DD#1 Main Channel | 1983 | 10 | Fair |
| San Andres(cr 445) over East Main Drain | 1975 | 1 | Fair |