Grand County Bridge Report Card

Grand County scores 93 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

A93 / 100

Local infrastructure snapshot

Grand County, Utah

Grand County has 121 bridges in the National Bridge Inventory, with 1 rated poor and 2 rated scour-critical. Its poor-condition share of 0.8% is at or below the 3.5% statewide average. Poor-condition bridges carry about 7 daily vehicle crossings.

121Total Bridges

1Poor (0.8%)

98Fair (81.0%)

2Scour-Critical

Quote-Ready Local Facts

0.8%of county bridges are in poor condition, compared with 3.5% statewide and 6.7% nationally.

7daily vehicle crossings are on poor-condition bridges in the county.

2bridges are rated scour-critical, or 1.7% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Grand County a Bridge Condition Exposure Score of 93/100 (A). The county has 121 bridges in the National Bridge Inventory, including 1 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 7 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	0.8%	1.7
Poor-condition traffic exposure	25	0.0% of measured traffic	0.0
Scour-critical bridge share	20	1.7%	3.3
Average age vs national baseline	10	52 years vs 48 nationally	1.8
Traffic-data completeness	5	649,036 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	0.8%
State Poor-Condition Share	3.5%
National Poor-Condition Share	6.7%
County Scour-Critical Share	1.7%
Average Bridge Age	52 years
Poor-Condition Traffic Exposure	7 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeWindy Mesa Road over Nash Wash — 7 vehicles/day Oldest Listed BridgeCounty Road over Thompson Wash — built in 1919 All County BridgesBrowse every bridge record in Grand County.

Top Bridges to Watch in Grand County

Bridge	Reason	Condition	Daily Traffic	Year Built
Windy Mesa Road over Nash Wash	Poor condition + traffic exposure	Poor	7	1987
County Road over Wayne Wash	Scour-critical foundation rating	Fair	139	1931
County Road over Saleratus Wash	Scour-critical foundation rating	Fair	13	1931
Us-191 (sr-191) over Pack Creek	High traffic	Fair	20,310	1955
Us-191 (sr-191) over Mill Creek	High traffic	Fair	20,310	1956
Us-191 (sr-191) over Lower Courthouse Wash	High traffic	Fair	14,182	1991
Us-191 over Moab Canyon Wash	High traffic	Fair	12,101	2004
I-70 (sr-70) over Crescent Wash	High traffic	Fair	11,872	1959
I-70 (sr-70) over Corral Wash	High traffic	Fair	11,872	1960
I-70 (sr-70) over Crooked Wash	High traffic	Fair	11,872	1960

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.