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Every bridge in Summit County, Colorado

63 inventoried bridges, busiest first

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled

BridgeBuiltVehicles/dayCondition
I 70 Ebnd over Forest Service Road202136,000Good
I 70 Wbnd over Forest Service Road202136,000Good
I 70 Ml over County Road197727,000Good
SH 9 Ml over I 70 Ml197124,000Fair
SH 9 Ml over Tenmile Creek198024,000Fair
SH 9 Ml over Pedestrian Underpass202322,287Good
SH 9 Ml over Blue River201321,000Good
I 70 Ml Ebnd over BlueRvr-Adams Ave and...197120,000Fair
I 70 Ml Ebnd over US 6 Ml197120,000Fair
I 70 Ml Wbnd over BlueRvr-Adams Ave and...197120,000Fair
I70 Ml Wbnd over SH 9 Ml197120,000Fair
SH 9 Ml over Blue River198220,000Fair
SH 9 Ml over Blue River200820,000Good
I 70 Ml Ebnd over Farm Access Road196416,000Fair
US 6 Ml over Snake River199914,000Good
I 70 Ml Ebnd over Frisco Main Street197113,500Fair
I 70 Ml Wbnd over Frisco Main Street197113,500Fair
Wildernest Road over Blue River198311,850Fair
Park Avenue over Blue River198510,668Fair
I 70 Ml Ebnd over Guller Gulch197710,000Poor
I 70 Ml Ebnd over Smith Gulch197710,000Poor
I 70 Ml Ebnd over Stafford Gulch197710,000Fair
I 70 Ml Ebnd over West Ten Mile Creek197710,000Fair
I 70 Ml Ebnd over Wilder Gulch197710,000Fair
I 70 Ml Wbnd over Corral Creek197910,000Poor
I 70 Ml Wbnd over Farm Access Road19649,020Fair
SH 9 Ml over Blue River19628,900Fair
Stephens Street over Straight Creek19898,716Good
US 6 Ml over Pedestrian Underpass19828,000Good
US 6 Ml over Snake River19808,000Fair
SH 91 Ml over I 70 Ml19777,700Fair
Main Street over Ten Mile Creek19705,497Good
SH 91 Ml over Climax Mine Haul Road19895,100Fair
Swan Mountain Rd over Blue River19933,594Fair
SH 9 Ml over Blue River19573,400Fair
SH 9 Ml over Blue River19613,200Fair
SH 9 Ml over Blue River20022,800Good
French Street over Blue River19852,706Fair
6TH Street over Blue River19812,091Fair
West Keystone Rd. over Snake River19721,640Fair
US 6 Ml over Montezuma Road Wbnd19951,600Good
4TH Ave-creekside over Ten Mile Creek1965980Fair
Broken Lance Dr over Blue River1979925Fair
Bald Eagle Road over Blue River2015851Fair
Shrine Pass Road over I 70 Ml1975818Fair
Madison Ave over Ten Mile Creek1965667Fair
Adams Avenue over Blue River1992606Fair
Creekside Drive over Ten Mile Creek1965548Fair
Hamilton Creek Rd over Blue River1980483Fair
E. Keystone Rd. over Snake River1978433Poor
Montezuma Rd CR5 over Snake River2015401Fair
Revett Drive over Swan River1997156Fair
Heeney Road over Green Mtn Dam Spillway1942100Fair
Boulder Creek Rd over Boulder Creek194543Fair
Fsr 355.1 over South Fork Swan200325Good
Slate Creek Rd over Blue River192313Fair
County Road 1813 over Blue River193810Poor
Adams Avenue over Willow Creek2024Good
Coyne Valley Road over Blue River2023Fair
E. Independence Ro over Jones Gulch2014Good
E. Independence Ro over Snake River1985Fair
E. Independence Ro over Stream1985Fair
W Independence Roa over Snake River2005Good

Source: FHWA National Bridge Inventory, 2025.

Summit County bridge conditions · Colorado bridges by county.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.