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Every bridge in Grand County, Colorado

Name: Every bridge in Grand County, Colorado
Creator: Bridge Report Card
License: https://creativecommons.org/publicdomain/zero/1.0/

88 inventoried bridges, busiest first

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Grand County, Colorado, has 88 bridges in the 2025 National Bridge Inventory: 37 rated good, 46 fair, and 5 poor (as of August 20, 2026).
This index lists every one of them, busiest first; each links to its own condition record.

Bridge	Built	Vehicles/day	Condition
US 40 Ml over Crooked Creek	1941	11,000	Poor
US 40 Ml over Fraser River	1985	11,000	Fair
US 40 Ml over Fraser River	1942	11,000	Fair
US 40 Ml over Pedestrian Underpass	2004	11,000	Good
US 40 Ml over UP RR	1985	11,000	Fair
US 40 Ml over Vasquez Creek	1938	11,000	Fair
US 40 Ml over St Louis Creek	1975	9,800	Good
US 40 Ml over UP RR	1975	8,900	Fair
US 34 Ml over Colorado River	1999	6,300	Good
US 34 Ml over Colorado River Overflow	1999	6,300	Fair
US 34 Ml over North Fork Colorado Rive	2018	6,200	Fair
US 34 Ml over Stillwater Creek	1938	4,900	Poor
US 40 Ml over Colorado River	1995	3,800	Fair
SH 9 Ml over Wildlife Underpass	2017	3,600	Good
SH 9 Ml over Wildlife Underpass	2017	3,600	Good
SH 9 Ml over Wildlife Underpass	2017	3,600	Good
SH 9 Ml over Wildlife Underpass/wash	2017	3,600	Good
SH 9 Ml over Colorado River	2004	3,500	Good
SH 9 Ml over UP RR	1942	3,500	Poor
US 40 Ml over Colorado River	1987	3,400	Good
US 40 Ml over UP RR	1987	3,400	Good
County Road 804 over Fraser River	1976	3,275	Fair
US 40 Ml over Big Muddy Creek	1996	3,100	Good
US 40 Ml over Colorado River	1974	2,600	Fair
US 40 Ml over Troublesome Creek	1996	2,400	Good
County Road 8 over Fraser River	2019	2,341	Good
US 40 Ml over Big Muddy Creek	1988	2,300	Fair
US 40 Ml over Big Muddy Creek	1988	2,300	Fair
US 40 Ml over Big Muddy Creek	1988	2,300	Good
US 40 Ml over Corral Creek	2002	2,300	Good
US 40 Ml over Diamond Creek	2000	2,300	Fair
US 40 Ml over Pass Creek	1994	2,300	Good
US 40 Ml over UP RR	2004	2,300	Good
US 40 Ml over Red Dirt Creek	1994	2,100	Good
County Road 83 over Fraser River	1985	1,702	Fair
County Road 1 over Blue River	1990	1,259	Fair
County Road 3 over Colorado River	1992	1,230	Fair
SH 9 Ml over Wildlife Underpass/wash	2017	1,200	Good
Rendezvous Road over Fraser River	2006	997	Fair
West Portal Drive over North Inlet	1950	924	Fair
SH 125 Ml over Willow Creek	1952	900	Fair
SH 125 Ml over Willow Creek	2015	900	Good
Winter Park Drive over Fraser River	1989	843	Fair
County Road 73 over St. Louis Creek	1981	817	Fair
Grand Avenue over Colorado River	1984	756	Fair
10 Mile Drive over Tenmile Creek	2000	751	Fair
Lions Gate Drive over Vasquez Creek	1996	703	Good
Wapiti Street over Fraser River	1996	640	Poor
Jericho Road over Grand/Shadow Mtn Channel	1991	633	Fair
County Road 1 over Sheephorn Creek	1997	632	Fair
County Road 491 over Colorado River	1985	631	Fair
County Road 64 over Granby Pump Canal	1995	604	Good
County Road 3 over Williams Fork River	2019	569	Good
County Road 84 over Ranch Creek	1992	533	Good
County Road 6 over Lake Grandby Buchanan C	1993	478	Fair
County Road 66 over Granby Pump Canal	1991	458	Good
County Road 6 over Granby Dam Spillway	1950	400	Fair
Grand Avenue over North Inlet	2001	351	Good
SH 134 Ml over Big Rock Creek	1955	320	Fair
County Road 11 over Sheephorn Creek	1988	300	Fair
County Road 57 over Fraser River	1980	275	Fair
Ski Idlewild Road over Fraser River	2020	257	Good
County Road 620 over Colorado River	1989	224	Good
County Road 330 over Williams Fork River	1929	166	Fair
County Road 10 over Blue River	1993	150	Fair
Summit Trail over Colorado River	2007	115	Good
County Road 8315 over Ranch Creek	1991	111	Good
Nfsr 123 over Pass Creek	1967	94	Fair
County Road 39 over Colorado River	1953	86	Fair
County Road 11 over Colorado River	1989	80	Fair
County Road 663 over Tonahutu Creek	1983	75	Fair
County Road 57 over Colorado River	1990	59	Fair
County Road 2 over Troublesome Creek	1990	56	Fair
142.1 over S.f. Williams Fork River	1968	50	Good
County Road 40 over Willow Creek Spillway	1953	50	Fair
Gubbins-johnson Ac over Baker Creek	1983	50	Fair
No Data Entered over Williams Fork	1950	50	Good
Nfsr 112 over Willow Creek	1963	41	Good
Fdr 108 over Willow Creek	2000	25	Good
Gubbins-johnson Ac over Colorado River	1983	25	Fair
Morgan Gulch Rec S over Williams Fork River	2011	25	Good
County Road 25 over Muddy Creek	1996	22	Fair
Nfsr 121.1 over Willow Creek	2011	15	Good
No Data Entered over Williams Fork	1969	11	Good
Fdr 106 over Willow Creek	1967	10	Fair
County Road 627 over Colorado River	1999	4	Fair
Holzwarth Access R over Colorado River	1982	2	Poor
Fdr 125 Service Rd over Arapaho Creek	1930	1	Fair

Source: FHWA National Bridge Inventory, 2025.

Grand County bridge conditions · Colorado bridges by county.

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