Bridge conditions in Prowers County, Colorado
138 inventoried bridges · 18 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Prowers County has 18 bridges rated poor out of 138 inventoried, a 13.0% share that puts it well above the national rate of about 7%.
- 18 of the 138 bridges in Prowers County, Colorado, are rated in poor condition (13.0%) in the 2025 National Bridge Inventory, as of .
- 24 bridges (17.4%) are rated good and 96 (69.6%) fair.
- The median Prowers County bridge was built in 1977.
- The busiest poor-rated bridge is US 50 Ml over Willow Creek (built 1936), carrying about 2,600 vehicles a day.
Good 17.4% · Fair 69.6% · Poor 13.0% of 138 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 50 Ml over Willow Creek | 1936 | 2,600 | Poor |
| County Road Ll over Unnamed Creek | 1991 | 1,086 | Poor |
| Maple St/cr HH.5 over Lamar Canal | 1983 | 794 | Poor |
| County Road Ll over Amity Canal | 1979 | 578 | Poor |
| County Road 35 over Holly Seep | 1940 | 519 | Poor |
| US 385 Ml over Amity Canal | 1935 | 470 | Poor |
| County Road Mm over Unnamed Drain | 1975 | 314 | Poor |
| County Road 6 over Amity Canal | 1988 | 245 | Poor |
| County Road 17 over Amity Canal | 1979 | 243 | Poor |
| County Road 3 over Ft. Lyon Canal | 1988 | 240 | Poor |
| County Road Mm over Pleasant Valley Drain | 1960 | 141 | Poor |
| County Road Ss over Tributary of Amity Canal | 1986 | 59 | Poor |
| County Road Uu over Ft. Lyon Canal | 1984 | 36 | Poor |
| County Road 19 over Granada Creek | 1930 | 29 | Poor |
| County Road 7 over Ft. Lyon Canal | 1979 | 28 | Poor |
| County Road 26 over South Plum Creek | 1950 | 15 | Poor |
| County Road Hh over Cheyenne Creek | 1975 | 12 | Poor |
| County Road Mm over Amity Canal | 1970 | 4 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 50 Ml over Lamar Canal | 1931 | 13,000 | Fair |
| US 287 Ml over Fort Bent Canal | 1947 | 9,200 | Fair |
| US 50 Ml over Vista Del Rio Canal | 1979 | 7,800 | Fair |
| US 50 Ml over Amity Canal | 1982 | 7,800 | Fair |
| US 50 Ml over Wiley Drainage Ditch | 1981 | 7,800 | Fair |
| US 50 Ml Wbnd over Arkansas River | 1989 | 4,700 | Fair |
| US 50 Ebnd over Arkansas River | 1967 | 4,700 | Fair |
| US 287 Ml over US 50 Ml | 1988 | 4,100 | Fair |
| US 50 Ml over Riverview Canal | 2004 | 3,800 | Good |
| US 287 Ml over North Butte Creek | 1976 | 3,500 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Colorado: Colorado bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.