Latah County Bridge Report Card

Latah 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

Latah County, Idaho

Latah County has 119 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 5.4% statewide average. Poor-condition bridges carry about 6,400 daily vehicle crossings.

119Total Bridges

1Poor (0.8%)

71Fair (59.7%)

2Scour-Critical

Quote-Ready Local Facts

0.8%of county bridges are in poor condition, compared with 5.4% statewide and 6.7% nationally.

6,400daily 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 Latah County a Bridge Condition Exposure Score of 92/100 (A). The county has 119 bridges in the National Bridge Inventory, including 1 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 6,400 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	3.6% of measured traffic	2.7
Scour-critical bridge share	20	1.7%	3.4
Average age vs national baseline	10	44 years vs 48 nationally	0.0
Traffic-data completeness	5	178,090 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	5.4%
National Poor-Condition Share	6.7%
County Scour-Critical Share	1.7%
Average Bridge Age	44 years
Poor-Condition Traffic Exposure	6,400 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeSma 7674;mtn View over Paradise Creek — 6,400 vehicles/day Oldest Listed BridgeCollege Street over Paradise Creek — built in 1915 All County BridgesBrowse every bridge record in Latah County.

Top Bridges to Watch in Latah County

Bridge	Reason	Condition	Daily Traffic	Year Built
Sma 7674;mtn View over Paradise Creek	Poor condition + traffic exposure	Poor	6,400	1992
Rock Creek Road over Palouse R;se.potlatch Br	Scour-critical foundation rating	Fair	580	1965
Stc 4805;cedar Rdg over Potlatch River	Scour-critical foundation rating	Fair	320	1992
SH 8 over Paradise Crk;ped Walkway	High traffic	Fair	12,000	1983
US 95 over Paradise Creek	High traffic	Fair	11,500	2000
Stc 7664;w. 6th ST over Paradise Creek	High traffic	Fair	7,500	1916
US 95 over S.fk. Palouse River	High traffic	Fair	7,500	2004
Sma 7674;mtn View over Paradise Creek	High traffic	Fair	7,300	1993
Stc 7704;perimeter over Paradise Creek	High traffic	Fair	7,000	1953
Stadium DR over Paradise Creek	High traffic	Fair	7,000	2010

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.