Clark County Bridge Report Card

Clark County scores 97 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

A97 / 100

Local infrastructure snapshot

Clark County, Nevada

Clark County has 1,154 bridges in the National Bridge Inventory, with 2 rated poor and 16 rated scour-critical. Its poor-condition share of 0.2% is at or below the 1.0% statewide average. Poor-condition bridges carry about 40,325 daily vehicle crossings.

1,154Total Bridges

2Poor (0.2%)

415Fair (36.0%)

16Scour-Critical

Quote-Ready Local Facts

0.2%of county bridges are in poor condition, compared with 1.0% statewide and 6.7% nationally.

40,325daily vehicle crossings are on poor-condition bridges in the county.

16bridges are rated scour-critical, or 1.4% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Clark County a Bridge Condition Exposure Score of 97/100 (A). The county has 1,154 bridges in the National Bridge Inventory, including 2 in poor condition and 16 rated scour-critical. Poor-condition bridges carry about 40,325 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	0.2%	0.3
Poor-condition traffic exposure	25	0.1% of measured traffic	0.1
Scour-critical bridge share	20	1.4%	2.8
Average age vs national baseline	10	29 years vs 48 nationally	0.0
Traffic-data completeness	5	28,738,755 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	0.2%
State Poor-Condition Share	1.0%
National Poor-Condition Share	6.7%
County Scour-Critical Share	1.4%
Average Bridge Age	29 years
Poor-Condition Traffic Exposure	40,325 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeParadise RD over Tropicana Wash — 36,000 vehicles/day Oldest Listed BridgeSr582 Boulder HWY over Flamingo Wash — built in 1931 All County BridgesBrowse every bridge record in Clark County.

Top Bridges to Watch in Clark County

Bridge	Reason	Condition	Daily Traffic	Year Built
Paradise RD over Tropicana Wash	Poor condition + traffic exposure	Poor	36,000	1971
US 95 over Eldorado Lake	Poor condition + traffic exposure	Poor	4,325	1977
I 15 over Muddy River	Scour-critical foundation rating	Fair	19,250	1962
I 15 over Muddy River	Scour-critical foundation rating	Fair	19,250	1962
Owens Av over Las Vegas Wash	Scour-critical foundation rating	Fair	16,700	1978
Stewart Av over Las Vegas Wash	Scour-critical foundation rating	Good	16,000	1979
I 15n over Toquop Wash	Scour-critical foundation rating	Good	12,400	1954
I 15s over Toquop Wash	Scour-critical foundation rating	Fair	12,400	1965
Russell RD over Duck Crk	Scour-critical foundation rating	Good	12,000	1974
Russell RD over Duck Crk	Scour-critical foundation rating	Good	12,000	1974

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.