Dawson County Bridge Report Card

Dawson County scores 68 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D68 / 100

Local infrastructure snapshot

Dawson County, Montana

Dawson County has 109 bridges in the National Bridge Inventory, with 9 rated poor and 6 rated scour-critical. Its poor-condition share of 8.3% is above the 7.4% statewide average. Poor-condition bridges carry about 5,160 daily vehicle crossings.

109Total Bridges

9Poor (8.3%)

92Fair (84.4%)

6Scour-Critical

Quote-Ready Local Facts

8.3%of county bridges are in poor condition, compared with 7.4% statewide and 6.7% nationally.

5,160daily vehicle crossings are on poor-condition bridges in the county.

6bridges are rated scour-critical, or 5.5% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Dawson County a Bridge Condition Exposure Score of 68/100 (D). The county has 109 bridges in the National Bridge Inventory, including 9 in poor condition and 6 rated scour-critical. Poor-condition bridges carry about 5,160 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	8.3%	16.5
Poor-condition traffic exposure	25	3.7% of measured traffic	2.8
Scour-critical bridge share	20	5.5%	11.0
Average age vs national baseline	10	53 years vs 48 nationally	2.2
Traffic-data completeness	5	140,432 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	8.3%
State Poor-Condition Share	7.4%
National Poor-Condition Share	6.7%
County Scour-Critical Share	5.5%
Average Bridge Age	53 years
Poor-Condition Traffic Exposure	5,160 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeI 94 over Clear Creek — 4,317 vehicles/day Oldest Listed BridgeRoad 261 over Irrigation Canal 041 — built in 1920 All County BridgesBrowse every bridge record in Dawson County.

Top Bridges to Watch in Dawson County

Bridge	Reason	Condition	Daily Traffic	Year Built
County Road 524 over N Fk Thirten Mile CR 091	Poor condition + traffic exposure	Poor	100	1983
I 94 over Clear Creek	Poor condition + traffic exposure	Poor	4,317	1973
S 200 over Drainage	Poor condition + traffic exposure	Poor	307	1959
County Road 542 over Thirteen Mile CR 061	Poor condition + traffic exposure	Poor	100	1964
Road 229 over Bad Route Creek 035	Poor condition + traffic exposure	Poor	100	1975
County Road 530 over S Fk Burns Creek 092	Poor condition + traffic exposure	Poor	100	1975
Pleasant View RD over Seven Mile Creek 025	Poor condition + traffic exposure	Poor	94	1983
Road 261 over Irrigation Canal 042	Poor condition + traffic exposure	Poor	21	1920
Road 261 over Crackerbox Creek 043	Poor condition + traffic exposure	Poor	21	1997
Dry Creek Road over Dry Creek	Scour-critical foundation rating	Fair	246	1970

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.