Griggs County Bridge Report Card

Griggs County scores 70 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C70 / 100

Local infrastructure snapshot

Griggs County, North Dakota

Griggs County has 22 bridges in the National Bridge Inventory, with 2 rated poor and 1 rated scour-critical. Its poor-condition share of 9.1% is at or below the 11.1% statewide average. Poor-condition bridges carry about 48 daily vehicle crossings.

22Total Bridges

2Poor (9.1%)

6Fair (27.3%)

1Scour-Critical

Quote-Ready Local Facts

9.1%of county bridges are in poor condition, compared with 11.1% statewide and 6.7% nationally.

48daily vehicle crossings are on poor-condition bridges in the county.

1bridges are rated scour-critical, or 4.5% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Griggs County a Bridge Condition Exposure Score of 70/100 (C). The county has 22 bridges in the National Bridge Inventory, including 2 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 48 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	9.1%	18.2
Poor-condition traffic exposure	25	1.1% of measured traffic	0.8
Scour-critical bridge share	20	4.5%	9.1
Average age vs national baseline	10	52 years vs 48 nationally	1.6
Traffic-data completeness	5	4,277 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	9.1%
State Poor-Condition Share	11.1%
National Poor-Condition Share	6.7%
County Scour-Critical Share	4.5%
Average Bridge Age	52 years
Poor-Condition Traffic Exposure	48 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeCounty Highway over Bn Railroad — 24 vehicles/day Oldest Listed BridgeCounty Highway over Sheyenne River — built in 1912 All County BridgesBrowse every bridge record in Griggs County.

Top Bridges to Watch in Griggs County

Bridge	Reason	Condition	Daily Traffic	Year Built
County Highway over Sheyenne River	Poor condition + traffic exposure	Poor	24	1912
County Highway over Bn Railroad	Poor condition + traffic exposure	Poor	24	1924
Nd Highway 45 over Sheyenne River	Scour-critical foundation rating	Fair	250	1965
Nd Highway 200 over Sheyenne River	High traffic	Good	900	1959
Nd Highway 1 over Baldhill Creek	High traffic	Good	750	1981
Nd Highway 1 over Bn Railroad Separation	High traffic	Good	750	2009
Nd Highway 200 over Baldhill Creek	High traffic	Good	620	1993
County Highway2026 over Baldhill Creek	High traffic	Good	265	1976
County Highway over Sheyenne River	High traffic	Fair	70	1978
County Highway over Baldhill Creek	High traffic	Good	70	1979

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.