Routt County Bridge Report Card

Routt 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

Routt County, Colorado

Routt County has 97 bridges in the National Bridge Inventory, with 7 rated poor and 5 rated scour-critical. Its poor-condition share of 7.2% is above the 4.6% statewide average. Poor-condition bridges carry about 12,330 daily vehicle crossings.

97Total Bridges

7Poor (7.2%)

48Fair (49.5%)

5Scour-Critical

Quote-Ready Local Facts

7.2%of county bridges are in poor condition, compared with 4.6% statewide and 6.7% nationally.

12,330daily vehicle crossings are on poor-condition bridges in the county.

5bridges are rated scour-critical, or 5.2% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Routt County a Bridge Condition Exposure Score of 70/100 (C). The county has 97 bridges in the National Bridge Inventory, including 7 in poor condition and 5 rated scour-critical. Poor-condition bridges carry about 12,330 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	7.2%	14.4
Poor-condition traffic exposure	25	6.8% of measured traffic	5.1
Scour-critical bridge share	20	5.2%	10.3
Average age vs national baseline	10	41 years vs 48 nationally	0.0
Traffic-data completeness	5	180,627 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	7.2%
State Poor-Condition Share	4.6%
National Poor-Condition Share	6.7%
County Scour-Critical Share	5.2%
Average Bridge Age	41 years
Poor-Condition Traffic Exposure	12,330 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeUS 40 Ml over Shelton Ditch — 6,400 vehicles/day Oldest Listed BridgeSH 131 Ml/main Str over Dodge Avenue/short Stree — built in 1935 All County BridgesBrowse every bridge record in Routt County.

Top Bridges to Watch in Routt County

Bridge	Reason	Condition	Daily Traffic	Year Built
US 40 Ml over Shelton Ditch	Poor condition + traffic exposure	Poor	6,400	1954
Poplar ST (cr53) over Dry Creek	Poor condition + traffic exposure	Poor	2,385	1988
SH 131 Ml over Up Rr	Poor condition + traffic exposure	Poor	2,200	1935
SH 131 Ml over Chimney Rock Creek	Poor condition + traffic exposure	Poor	860	1938
County Road 56 over Elk River	Poor condition + traffic exposure	Poor	204	1972
County Road 179 over Trout Creek	Poor condition + traffic exposure	Poor	150	1955
County Road 129 over S.fk Little Snake River	Poor condition + traffic exposure	Poor	131	1975
SH 131 Ml over Yampa River	Scour-critical foundation rating	Good	4,600	1976
US 40 Ml over Yampa River	Scour-critical foundation rating	Fair	4,200	1967
County Road 70 over Morgan Creek	Scour-critical foundation rating	Fair	90	1995

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.