Harris County, TX

4,030 public highway bridges

Harris County Bridge Snapshot

Harris County, Texas contains 4,030 public highway bridges in the FHWA National Bridge Inventory. Roughly 31.2% are rated “Good,” 31.4% “Fair,” 0.4% “Poor,” and 0.4% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in TX are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

4,030

Total Bridges

31.2%

Good

0.4%

Poor

0.4%

Structurally Deficient

Condition Distribution

Good

31.2% (1,259)

Fair

31.4% (1,266)

Poor

0.4% (18)

SD

0.4% (18)

All Bridges (4,030)

Sort:

SH 99 WB FRTG RD

Over: IH 45

AT JCT SH 99 AND IH 45, Harris, TX

Built 2016 ADT: 215,000

SH 99 EB

Over: IH 45

AT JCT IH 45 AND SH 99, Harris, TX

Built 2016 ADT: 187,346

SH 99 WB

Over: IH 45

AT JCT IH 45 AND SH 99, Harris, TX

Built 2016 ADT: 187,346

IH45SB TO SH99 WB

Over: IH45 SB, SH 99 WB FR, RP

AT JCT IH 45 AND SH 99, Harris, TX

Built 2016 ADT: 191,915

IH 45 SB HOV EN RP

Over: IH 45 SB HOV EN RP

0.5 MI S OF FM 1960, Harris, TX

Built 1995 ADT: 116,090

IH 45 NB HOV EX RP

Over: IH 45 NB HOV EX RP

0.6 MI S OF FM 1960, Harris, TX

Built 1995 ADT: 116,090

IH 45 ML

Over: BW 8 EBFR & WBFR

IH 45 ML, Harris, TX

Built 1989 ADT: 18,000

BW 8 WB/IH 45 SB

Over: IH 45 ML

BW 8 WB TO IH 45 SB, Harris, TX

Built 1996 ADT: 231,850

IH 45 NB / BW 8 EB

Over: IH 45 NBFR & BW 8 EBFR

IH 45 NB TO BW 8 EB, Harris, TX

Built 1986 ADT: 44,028

IH45 SB HOV On-Rp

Over: IH 45 NB ML

0.5 MI N OF WEST RD, Harris, TX

Built 1989 ADT: 115,920

IH45 NB HOV Off-Rp

Over: IH 45 SB ML

0.5 MI N OF WEST RD, Harris, TX

Built 1989 ADT: 115,920

IH 45 SB

Over: GULF BANK RD

6.0 MI N OF IH 610, Harris, TX

Built 1989 ADT: 17,749

IH 45 NB & HOV

Over: GULF BANK RD

6.0 MI N OF IH 610, Harris, TX

Built 1989 ADT: 17,749

IH 45 SB

Over: SH 249

2.0 MI N OF SPUR 261, Harris, TX

Built 1989 ADT: 43,816

IH 45 NB & HOV

Over: SH 249

2.0 MI N OF SPUR 261, Harris, TX

Built 1989 ADT: 43,816

IH 45 SB

Over: WEST RD

8.0 MI N OF IH 610, Harris, TX

Built 1989 ADT: 26,175

IH 45 NB & HOV

Over: WEST RD

8.0 MI N OF IH 610, Harris, TX

Built 1989 ADT: 26,175

IH 45 SB & HOV

Over: FM 525 (ALDINE BENDER)

0.6 MI S OF BELTWAY 8, Harris, TX

Built 1989 ADT: 30,070

IH 45 NB

Over: FM 525 (ALDINE BENDER)

0.6 MI S OF BELTWAY 8, Harris, TX

Built 1989 ADT: 30,070

IH 45 NB OFF RAMP

Over: FM 525 (ALDINE BENDER)

0.6 MI S OF BELTWAY 8, Harris, TX

Built 1989 ADT: 31,000

IH 45 NB

Over: RANKIN RD

1.8 MI N OF BWY 8, Harris, TX

Built 1997 ADT: 35,906

IH 45 SB & HOV

Over: RANKIN RD

1.8 MI N OF BWY 8, Harris, TX

Built 1997 ADT: 35,906

BW 8 WB ON-RAMP

Over: IH 45 NB OFF-RAMP

0.7 MI E OF GREENS CROSS, Harris, TX

Built 1989 ADT: 10,470

BW 8 EBML

Over: IH 45

.7 MI E OF GREENS CROSSIN, Harris, TX

Built 1989 ADT: 231,850

BW 8 WBML

Over: IH 45

.7 MI E OF GREENS CROSSIN, Harris, TX

Built 1989 ADT: 271,520

IH 45 NB OFF-RAMP

Over: BW 8 EBFR & WBFR

IH 45 & BW 8 INTERCHANGE, Harris, TX

Built 1995 ADT: 10,000

IH 45

Over: GREENS RD

0.7 MI N OF BW 8, Harris, TX

Built 1997 ADT: 5,000

IH 45 SBFR

Over: GREENS RD

0.50 MI S GREENS BAYOU, Harris, TX

Built 1997 ADT: 7,937

IH 45 NBFR

Over: GREENS RD

0.50 MI S GREENS BAYOU, Harris, TX

Built 1997 ADT: 8,094

BW 8 EB/IH 45 NB

Over: BW 8 & IH 45

IH 45 & BW 8 INTERCHANGE, Harris, TX

Built 1997 ADT: 271,520

IH 45 SB / BW 8 WB

Over: IH 45 SBFR & BW 8 WBFR

IH 45 & BW 8 INTERCHANGE, Harris, TX

Built 1997 ADT: 11,060

IH 45 NB / BW 8 WB

Over: BW 8 & IH 45

IH 45 & BW 8 INTERCHANGE, Harris, TX

Built 2003 ADT: 232,000

IH 45 SB / BW 8 EB

Over: BW 8 & IH 45

IH 45 & BW 8 INTERCHANGE, Harris, TX

Built 2003 ADT: 216,000

FM 521

Over: HOLMES RD & BNSF RR

0.7 MI S OF IH 610, Harris, TX

Built 1985 ADT: 20,220

BW 8 EBFR

Over: FM 521 & UP RR

2.3 Miles West Of SH 288, Harris, TX

Built 1997 ADT: 21,000

BW 8 WBFR

Over: FM 521 & UP RR

2.3 Miles West Of SH 288, Harris, TX

Built 1997 ADT: 21,000

BW 8 ML

Over: FM 521 & UP RR

2.3 MI W OF SH 288, Harris, TX

Built 1997 ADT: 20,830

US 290

Over: US 290

1.15 MI SE OF FM 2920, Harris, TX

Built 1998 ADT: 650

US 290

Over: US 290

2.35 MI SE OF FM 2920, Harris, TX

Built 1998 ADT: 600

US 290 EB

Over: US 290 EB

0.85 MI NW OF FM 2920, Harris, TX

Built 1998 ADT: 500

US 290 WB

Over: US 290 WB

0.85 MI NW OF FM 2920, Harris, TX

Built 1998 ADT: 500

US 290

Over: US 290

0.85 MI SE OF FIELD STORE, Harris, TX

Built 1998 ADT: 4,200

US 290

Over: US 290

5.4 MI SE OF FM 2920, Harris, TX

Built 1998 ADT: 1,136

US 290 ML

Over: US 290

4.5 MI E OF FM 2920, Harris, TX

Built 1998 ADT: 96

US 290 ML

Over: US 290

3.4 MI SE OF FM 2920, Harris, TX

Built 1998 ADT: 1,136

TOWNSEN BLVD

Over: TOWNSEN BLVD

0.95 MI N OF FM 1960, Harris, TX

Built 1996 ADT: 86,440

US 59 HOV RAMP

Over: US 59 HOV RAMP

0.75 MI N OF FM 1960, Harris, TX

Built 2003 ADT: 112,010

MCCLELLAN RD

Over: McCLELLAN RD

2.2 MI N OF FM 1960, Harris, TX

Built 1999 ADT: 9,810

US 59 HOV

Over: US 59 HOV

1.7 MI N OF FM 1960, Harris, TX

Built 2002 ADT: 112,010

US 59 SB ON-RP

Over: US 59 SB ON RP

1.05 MI N OF FM 1960, Harris, TX

Built 2002 ADT: 10,000

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026