Williamson County, TX

1,171 public highway bridges

Williamson County Bridge Snapshot

Williamson County, Texas contains 1,171 public highway bridges in the FHWA National Bridge Inventory. Roughly 57% are rated “Good,” 27.8% “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.

1,171

Total Bridges

57%

Good

0.4%

Poor

0.4%

Structurally Deficient

Condition Distribution

Good

57% (667)

Fair

27.8% (325)

Poor

0.4% (5)

SD

0.4% (5)

All Bridges (1,171)

Sort:

SH 130 SB ML

Over: SH 130 SB ML

2.70 MI N OF US 79, Williamson, TX

Built 2006 ADT: 1,000

SH 130 NB ML

Over: SH 130 NB ML

1.70 MI N OF US 79, Williamson, TX

Built 2006 ADT: 2,000

SH 130 SB ML

Over: SH 130 SB ML

1.70 MI N OF US 79, Williamson, TX

Built 2006 ADT: 2,000

SH 130 NB ML

Over: SH 130 TOLL

1.70 MI S OF US 79, Williamson, TX

Built 2006 ADT: 10,000

SH 130 SB ML

Over: SH 130 TOLL

1.70 MI S OF US 79, Williamson, TX

Built 2006 ADT: 10,000

GATTIS SCHOOL RD

Over: GATTIS SCHOOL RD

2.70 MI S OF US 79, Williamson, TX

Built 2006 ADT: 13,500

GATTIS SCHOOL T/A

Over: GATTIS SCHOOL T/A

2.70 MI S OF US 79, Williamson, TX

Built 2006 ADT: 13,500

FM 734

Over: FM 620

INT. OF FM 734 & FM 620, Williamson, TX

Built 1990 ADT: 44,000

SH 45 EB ON RAMP

Over: SH 45 EB OFF-RP

0.75 MI W OF RM 620, Williamson, TX

Built 2006 ADT: 18,000

SH 45 WB

Over: RM 620

1.35 MI E OF PARMER LN, Williamson, TX

Built 2006 ADT: 8,000

SH 45 EB

Over: PEARSON; DAVIS BR; RM620

1.35 MI E OF PARMER LN, Williamson, TX

Built 2006 ADT: 8,000

SH 45 EB

Over: N LAKE CR PKWY

0.50 MI E OF US 183, Williamson, TX

Built 2006 ADT: 2,000

SH 45 WB

Over: N LAKESIDE CR PKWY

0.50 MI E OF US 183, Williamson, TX

Built 2006 ADT: 2,000

SH45WB TO US183NB

Over: US 183 NBFR

2.0 MI W OF FM 734, Williamson, TX

Built 2007 ADT: 6,000

SH45WB TO US183SB

Over: PECAN PARK BLVD

2.0 MI W OF FM 734, Williamson, TX

Built 2006 ADT: 180

SH45WB TO US183SB

Over: US 183 SB CONN

2.0 MI W OF FM 734, Williamson, TX

Built 2006 ADT: 5,000

RM 620 EB

Over: SH 45 EB OFF-RP

1.5 MI E OF US 183, Williamson, TX

Built 2007 ADT: 18,000

RM 620 WB

Over: SH 45 WB ON-RP

1.5 MI E OF US 183, Williamson, TX

Built 2007 ADT: 18,000

RM 620

Over: W TURNAROUND

0.11 MI NW OF IH 35, Williamson, TX

Built 2023 ADT: 1,750

SH 45 EB ML

Over: QUICK HILL RD (CR 172)

3.10 MI E OF RM 620, Williamson, TX

Built 2006 ADT: 1,800

SH 45 WB ML

Over: QUICK HILL RD (CR 172)

3.10 MI E OF RM 620, Williamson, TX

Built 2006 ADT: 1,800

LP 1 EB OFF-RP

Over: QUICK HILL RD (CR 172)

3.10 MI E OF RM 620, Williamson, TX

Built 2006 ADT: 1,800

SH 45 EB ML

Over: FM 1325

0.70 MI W OF IH 35, Williamson, TX

Built 2006 ADT: 31,000

SH 45 WB ML

Over: FM 1325

0.70 MI W OF IH 35, Williamson, TX

Built 2006 ADT: 31,000

SH45EB TO IH35NB

Over: SH 45 & IH 35

0.7 MI E OF FM 1325, Williamson, TX

Built 2006 ADT: 25,000

SH45EB TO IH35NB

Over: SH 45 EB ON RAMP

0.7 MI E OF FM 1325, Williamson, TX

Built 2006 ADT: 18,000

SH45WB TO IH35NB

Over: SH 45 WB FR & ON RAMP

0.7 MI E OF FM 1325, Williamson, TX

Built 2006 ADT: 18,000

SH 45 EB ML

Over: Greenlawn Blvd

0.80 MI E OF IH 35, Williamson, TX

Built 2006 ADT: 500

SH 45 WB ML

Over: Greenlawn Blvd

0.80 MI E OF IH 35, Williamson, TX

Built 2006 ADT: 500

SH 45 EB OFF RAMP

Over: SH 45 ROW

1.10 MI E OF FM 1325, Williamson, TX

Built 2006 ADT: 15,000

SH 45 EB ML

Over: A.W. Grimes blvd (CR 170

1.4 MI E OF IH 35, Williamson, TX

Built 2006 ADT: 200

SH 45 WB ML

Over: A.W. Grimes Blvd (CR 170

1.4 MI E OF IH 35, Williamson, TX

Built 2006 ADT: 200

SH 45 EB ML

Over: ARTERIAL A

2.75 MI E OF IH 35, Williamson, TX

Built 2006 ADT: 2,000

SH 45 WB ML

Over: ARTERIAL A

2.75 MI E OF IH 35, Williamson, TX

Built 2006 ADT: 2,000

SH45WB TO LP1SB

Over: SH 45

2.7 MI E OF RM 620, Williamson, TX

Built 2006 ADT: 42,000

LP1NB TO SH45EB

Over: SH 45 EB FR

2.7 MI E OF RM 620, Williamson, TX

Built 2006 ADT: 18,000

SH45EB TO LP1SB

Over: MCNEIL RD & UP RR

2.3 MI E OF RM 620, Williamson, TX

Built 2006 ADT: 2,000

LP1NB TO SH45WB

Over: SH 45; MCNEIL RD; UPRR

2.3 MI E OF RM 620, Williamson, TX

Built 2006 ADT: 42,000

SH 45 EB ML

Over: McNeil Rd; UPRR; DRAIN

2.30 MI E OF RM 620, Williamson, TX

Built 2006 ADT: 2,000

SH 45 WB ML

Over: MCNEIL;RD; UPRR; DRAIN

2.30 MI E OF RM 620, Williamson, TX

Built 2006 ADT: 2,000

O'CONNOR DRIVE

Over: SH 45

1.5 MI E OF RR 620, Williamson, TX

Built 2014 ADT: 50,000

SH 195 NB

Over: CR 228

0.94 MI N OF SH 138, Williamson, TX

Built 2015 ADT: 780

SH 195 NB

Over: SH 195 CONN A

1.4 MI N OF SH138, Williamson, TX

Built 2015 ADT: 1,000

SH 195 SB

Over: SH 195 CONN A

1.4 MI N OF SH 138, Williamson, TX

Built 2015 ADT: 1,000

SH 195 SB

Over: CR 228

0.94 MI N OF SH 138, Williamson, TX

Built 2015 ADT: 307

FM 1431

Over: GEORGETOWN RAILROAD

0.3 MI W OF IH 35, Williamson, TX

Built 1986 ADT: 33,520

Ronald Reagan Blvd

Over: RM 2338

5.4 MI W OF SH 195, Williamson, TX

Built 2022 ADT: 3,119

RONALD REAGAN BLVD

Over: YEARWOOD HAUL RD

0.3 MI S OF TX 195, Williamson, TX

Built 2013 ADT: 1,000

COLLEGE STREET

Over: San Gabriel River

0.4 MI S OF FM 971, Williamson, TX

Built 2010 ADT: 2,730

SOUTHWEST BYPASS

Over: TCS QUARRY

0.8 MI W OF IH 35, Williamson, TX

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