Millard County Bridge Report Card

Millard County scores 92 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

A92 / 100

Local infrastructure snapshot

Millard County, Utah

Millard County has 72 bridges in the National Bridge Inventory, with 2 rated poor and 1 rated scour-critical. Its poor-condition share of 2.8% is at or below the 3.5% statewide average. Poor-condition bridges carry about 98 daily vehicle crossings.

72Total Bridges

2Poor (2.8%)

62Fair (86.1%)

1Scour-Critical

Quote-Ready Local Facts

2.8%of county bridges are in poor condition, compared with 3.5% statewide and 6.7% nationally.

98daily vehicle crossings are on poor-condition bridges in the county.

1bridges are rated scour-critical, or 1.4% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Millard County a Bridge Condition Exposure Score of 92/100 (A). The county has 72 bridges in the National Bridge Inventory, including 2 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 98 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	2.8%	5.6
Poor-condition traffic exposure	25	0.0% of measured traffic	0.0
Scour-critical bridge share	20	1.4%	2.8
Average age vs national baseline	10	48 years vs 48 nationally	0.1
Traffic-data completeness	5	539,656 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	2.8%
State Poor-Condition Share	3.5%
National Poor-Condition Share	6.7%
County Scour-Critical Share	1.4%
Average Bridge Age	48 years
Poor-Condition Traffic Exposure	98 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeChalk Creek Road over S. Fk. Chalk Creek — 60 vehicles/day Oldest Listed BridgeSr-99 over Chalk Creek — built in 1934 All County BridgesBrowse every bridge record in Millard County.

Top Bridges to Watch in Millard County

Bridge	Reason	Condition	Daily Traffic	Year Built
Chalk Creek Road over S. Fk. Chalk Creek	Poor condition + traffic exposure	Poor	60	1965
County Road over Central Utah Canal	Poor condition + traffic exposure	Poor	38	1935
1500 N. County Rd. over Wilson Canal	Scour-critical foundation rating	Fair	350	1973
I-15 (sr-15)nb&sb over Chalk Creek	High traffic	Fair	24,744	1972
I-15 (sr-15)nb&sb over Chalk Creek Overflow Ch.	High traffic	Fair	24,744	1972
I-15 (sr-15) Nbl over Sr-99 Intchg. X-road	High traffic	Fair	24,744	1972
I-15 (sr-15) Sbl over Sr-99 Intchg. X-road	High traffic	Fair	24,744	1972
I-15 SB over Dog Valley Access RD	High traffic	Good	23,000	2022
I-15 (sr-15) Nbl over Co. Rd. Inter X-road	High traffic	Fair	22,567	1966
I-15 (sr-15) Nbl over Co. Rd. Inter X-road	High traffic	Fair	22,567	1972

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.