Browse Bridge Database
8,990 bridges in the FHWA National Bridge Inventory in Colorado.
National Bridge Inventory Database
Browse 8,990 bridges from the Federal Highway Administration National Bridge Inventory. Filter by state, condition rating, or search by name and location.
| Bridge | Location | Condition | Year Built | Length | ADT |
|---|---|---|---|---|---|
| LEMON GULCH | LEMON GULC | Colorado | Good | 2021 | 45.8 m | 10,690 |
| RALSTON CREEK | RALSTON | Colorado | Good | 1996 | 72.0 m | 10,681 |
| Upper Platte Beaver Cana | Colorado | Fair | 2000 | 9.8 m | 10,679 |
| BLUE RIVER | Colorado | Fair | 1985 | 20.4 m | 10,668 |
| COTTONWOOD CREEK | Colorado | Fair | 1978 | 19.4 m | 10,611 |
| Greeley No. 3 Ditch | Colorado | Good | 1976 | 7.4 m | 10,593 |
| BRANTNER GULCH | Colorado | Fair | 1979 | 7.3 m | 10,591 |
| BRANTNER DITCH | Colorado | Fair | 1940 | 7.0 m | 10,583 |
| FOUNTAIN CREEK | Colorado | Fair | 1958 | 35.8 m | 10,578 |
| US 40 FRONTAGE RD | Colorado | Poor | 1965 | 28.5 m | 10,527 |
| OBRIAN CANAL | Colorado | Fair | 2010 | 29.1 m | 10,521 |
| COUNTY ROAD 49 | Colorado | Good | 2000 | 48.8 m | 10,500 |
| COLORADO RIVER | Colorado | Fair | 1975 | 135.4 m | 10,500 |
| COUNTY ROAD 49 | Colorado | Fair | 2000 | 48.5 m | 10,500 |
| DRY CREEK | Colorado | Fair | 1975 | 25.1 m | 10,500 |
| BOX ELDER CRK FRM ACC. R | Colorado | Good | 2000 | 70.4 m | 10,500 |
| HIGHLINE CANAL | Colorado | Fair | 1935 | 8.9 m | 10,500 |
| COLORADO RIVER | Colorado | Fair | 1975 | 135.4 m | 10,500 |
| MAMM CREEK | Colorado | Good | 1977 | 21.5 m | 10,500 |
| MAMM CREEK | Colorado | Fair | 1977 | 21.6 m | 10,500 |
| DRY CREEK | Colorado | Good | 1975 | 25.1 m | 10,500 |
| KIOWA CREEK | Colorado | Fair | 1992 | 159.1 m | 10,500 |
| KIOWA CREEK | Colorado | Fair | 1991 | 159.1 m | 10,500 |
| BOX ELDER CRK FRM. ACCES | Colorado | Fair | 2000 | 70.4 m | 10,500 |
| Skunk Creek | Colorado | Good | 2008 | 6.1 m | 10,468 |
| Boulder Creek | Colorado | Good | 1988 | 27.1 m | 10,452 |
| I-225 | Colorado | Good | 2013 | 55.2 m | 10,438 |
| HIGHLINE CANAL | Colorado | Fair | 1994 | 15.2 m | 10,425 |
| EAGLE RIVER | Colorado | Good | 1999 | 51.7 m | 10,419 |
| Boulder Cr. Supply Ditch | Colorado | Good | 1996 | 6.2 m | 10,395 |
| Whiterock Ditch | Colorado | Fair | 1996 | 6.4 m | 10,395 |
| I-25 | Colorado | Good | 2003 | 99.5 m | 10,394 |
| LENA GULCH | Colorado | Fair | 1975 | 12.9 m | 10,393 |
| SECOND CREEK | Colorado | Fair | 2014 | 24.1 m | 10,390 |
| S. Goose Creek Drainage | Colorado | Fair | 1986 | 22.9 m | 10,375 |
| Coal Creek | Colorado | Fair | 1927 | 14.0 m | 10,350 |
| TOLLGATE CREEK | Colorado | Fair | 1994 | 6.3 m | 10,350 |
| SECOND CREEK | Colorado | Fair | 1995 | 9.2 m | 10,327 |
| BEAR CREEK | Colorado | Fair | 1974 | 24.7 m | 10,318 |
| LEYDEN CREEK | Colorado | Fair | 2007 | 21.4 m | 10,304 |
| E-470 | Colorado | Good | 1996 | 70.9 m | 10,300 |
| HIGHLINE CANAL | Colorado | Fair | 1972 | 10.1 m | 10,288 |
| E-470 | Colorado | Good | 1996 | 77.4 m | 10,200 |
| Whitney Ditch | Colorado | Fair | 1981 | 6.6 m | 10,186 |
| WESTERLY CREEK | Colorado | Good | 2014 | 21.9 m | 10,147 |
| CHERRY CREEK | COLORADO | Colorado | Good | 2008 | 187.6 m | 10,120 |
| ANIMAS RIVER | Colorado | Fair | 1974 | 45.4 m | 10,111 |
| CLEAR CREEK | Colorado | Fair | 1973 | 51.2 m | 10,092 |
| Left Hand Creek | Colorado | Fair | 2003 | 20.9 m | 10,085 |
| I 25 ML | Colorado | Good | 2011 | 72.8 m | 10,083 |
Frequently Asked Questions
The National Bridge Inventory (NBI) is a federal database maintained by the Federal Highway Administration containing inspection data for all bridges on public roads in the U.S. with a span of more than 20 feet. Bridge owners must inspect each structure at least every 24 months.
ADT stands for Average Daily Traffic — the average number of vehicles crossing the bridge per day. Bridges are sorted by ADT by default because high-traffic bridges in poor condition pose the greatest risk to the most people.
Yes. Use the search field above to find bridges by name, location, or features crossed. You can also combine the search with state and condition filters to narrow your results.