Treasure County Bridge Report Card

Treasure County scores 55 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F55 / 100

Local infrastructure snapshot

Treasure County, Montana

Treasure County has 26 bridges in the National Bridge Inventory, with 4 rated poor and 1 rated scour-critical. Its poor-condition share of 15.4% is above the 7.4% statewide average. Poor-condition bridges carry about 545 daily vehicle crossings.

26Total Bridges

4Poor (15.4%)

14Fair (53.8%)

1Scour-Critical

Quote-Ready Local Facts

15.4%of county bridges are in poor condition, compared with 7.4% statewide and 6.7% nationally.

545daily vehicle crossings are on poor-condition bridges in the county.

1bridges are rated scour-critical, or 3.8% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Treasure County a Bridge Condition Exposure Score of 55/100 (F). The county has 26 bridges in the National Bridge Inventory, including 4 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 545 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	15.4%	30.8
Poor-condition traffic exposure	25	3.1% of measured traffic	2.4
Scour-critical bridge share	20	3.8%	7.7
Average age vs national baseline	10	59 years vs 48 nationally	4.6
Traffic-data completeness	5	17,325 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	15.4%
State Poor-Condition Share	7.4%
National Poor-Condition Share	6.7%
County Scour-Critical Share	3.8%
Average Bridge Age	59 years
Poor-Condition Traffic Exposure	545 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeFrontage Road 018 over Irrigation Ditch 001 — 281 vehicles/day Oldest Listed BridgeFrontage RD over Sarpy Creek 003 — built in 1925 All County BridgesBrowse every bridge record in Treasure County.

Top Bridges to Watch in Treasure County

Bridge	Reason	Condition	Daily Traffic	Year Built
River RD over Irrigation Ditch 005	Poor condition + traffic exposure	Poor	17	1979
Frontage Road 018 over Irrigation Ditch 001	Poor condition + traffic exposure	Poor	281	1933
Frontage Road 018 over Drainage 009	Poor condition + traffic exposure	Poor	219	1933
Frontage RD over Sarpy Creek 003	Poor condition + traffic exposure	Poor	28	1925
I 94 over Sep Rr	High traffic	Good	5,042	1973
I 94 over Int Hysham	High traffic	Good	2,521	1964
I 94 over Sarpy Creek	High traffic	Good	2,521	1967
I 94 over Int Hysham	High traffic	Good	2,521	1976
I 94 over Sarpy Creek	High traffic	Good	2,094	1976
Old HWY 10 over Irrigation Ditch 024	High traffic	Fair	273	1933

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.