Williamson County Bridge Report Card

Williamson County scores 99 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

A99 / 100

Local infrastructure snapshot

Williamson County, Texas

Williamson County has 1,171 bridges in the National Bridge Inventory, with 4 rated poor and 0 rated scour-critical. Its poor-condition share of 0.3% is at or below the 1.2% statewide average. Poor-condition bridges carry about 1,890 daily vehicle crossings.

1,171Total Bridges

4Poor (0.3%)

363Fair (31.0%)

0Scour-Critical

Quote-Ready Local Facts

0.3%of county bridges are in poor condition, compared with 1.2% statewide and 6.7% nationally.

1,890daily vehicle crossings are on poor-condition bridges in the county.

0bridges are rated scour-critical, or 0.0% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Williamson County a Bridge Condition Exposure Score of 99/100 (A). The county has 1,171 bridges in the National Bridge Inventory, including 4 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 1,890 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.

Download all county report-card scores as CSV.

How the Score Breaks Down

Factor	Weight	County Value	Penalty
Poor-condition bridge share	40	0.3%	0.7
Poor-condition traffic exposure	25	0.0% of measured traffic	0.0
Scour-critical bridge share	20	0.0%	0.0
Average age vs national baseline	10	31 years vs 48 nationally	0.0
Traffic-data completeness	5	11,812,354 measured daily crossings	0.0

Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.

County Comparisons

County Poor-Condition Share	0.3%
State Poor-Condition Share	1.2%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.0%
Average Bridge Age	31 years
Poor-Condition Traffic Exposure	1,890 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeFM 619 over Draw — 1,224 vehicles/day Oldest Listed BridgeCR 456 over Brushy Creek — built in 1912 All County BridgesBrowse every bridge record in Williamson County.

Top Bridges to Watch in Williamson County

Bridge	Reason	Condition	Daily Traffic	Year Built
FM 619 over Draw	Poor condition + traffic exposure	Poor	1,224	1935
CR 118 over Cottonwood Creek	Poor condition + traffic exposure	Poor	506	1926
CR 126 over Mileham Br	Poor condition + traffic exposure	Poor	100	1922
CR 434 over Brushy Creek	Poor condition + traffic exposure	Poor	60	1930
IH 35 SB over South San Gabriel River	High traffic	Fair	517,256	1965
IH 35 Ml & Nbfr over Draw	High traffic	Fair	209,037	1960
N IH 35 Off Ramp over Uprr & Mcneil RD	High traffic	Good	207,900	2018
N IH 35 On Ramp over Uprr & Mcneil RD	High traffic	Good	207,900	2018
IH 35 over Lake Creek	High traffic	Fair	160,231	1960
IH 35 over Mcneil Rd; Up Rr; Etc	High traffic	Fair	151,634	1990

Important safety note

Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.