Weld County Bridge Report Card

Weld County scores 91 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

A91 / 100

Local infrastructure snapshot

Weld County, Colorado

Weld County has 608 bridges in the National Bridge Inventory, with 21 rated poor and 1 rated scour-critical. Its poor-condition share of 3.5% is at or below the 4.6% statewide average. Poor-condition bridges carry about 106,698 daily vehicle crossings.

608Total Bridges

21Poor (3.5%)

376Fair (61.8%)

1Scour-Critical

Quote-Ready Local Facts

3.5%of county bridges are in poor condition, compared with 4.6% statewide and 6.7% nationally.

106,698daily vehicle crossings are on poor-condition bridges in the county.

1bridges are rated scour-critical, or 0.2% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Weld County a Bridge Condition Exposure Score of 91/100 (A). The county has 608 bridges in the National Bridge Inventory, including 21 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 106,698 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	3.5%	6.9
Poor-condition traffic exposure	25	2.8% of measured traffic	2.1
Scour-critical bridge share	20	0.2%	0.3
Average age vs national baseline	10	39 years vs 48 nationally	0.0
Traffic-data completeness	5	3,767,009 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	3.5%
State Poor-Condition Share	4.6%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.2%
Average Bridge Age	39 years
Poor-Condition Traffic Exposure	106,698 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeUS 34 Ml Wbnd over US 85 Bus RT — 16,500 vehicles/day Oldest Listed BridgeRailroad Drive over Union Ditch — built in 1930 All County BridgesBrowse every bridge record in Weld County.

Top Bridges to Watch in Weld County

Bridge	Reason	Condition	Daily Traffic	Year Built
US 34 Ml Wbnd over US 85 Bus RT	Poor condition + traffic exposure	Poor	16,500	1962
US 34 EB over Up Rr	Poor condition + traffic exposure	Poor	16,500	1962
US 34 Ml Ebnd over Ramp To Us85 SB 8th AVE	Poor condition + traffic exposure	Poor	15,000	1968
US 85 Ml Sbnd over South Platte River	Poor condition + traffic exposure	Poor	12,500	1955
US 85 Ml Nbnd over Cache La Poudre River	Poor condition + traffic exposure	Poor	11,000	1962
US 85 Bypass Sbnd over US 85 Buss RT	Poor condition + traffic exposure	Poor	4,750	1962
37th Street over Loveland Greeley Canal	Poor condition + traffic exposure	Poor	4,671	1994
County RD 13 over Unnamed Creek	Poor condition + traffic exposure	Poor	3,820	1999
County Road 34 over Supply Ditch	Poor condition + traffic exposure	Poor	3,223	1937
County Road 20 over Sullivan Ditch	Poor condition + traffic exposure	Poor	3,128	1994

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.