Browse Bridge Database
23,716 bridges in the FHWA National Bridge Inventory in Iowa.
National Bridge Inventory Database
Browse 23,716 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 |
|---|---|---|---|---|---|
| DRAINAGE DITCH | Iowa | Fair | 1966 | 14.3 m | 118,600 |
| BLUE CREEK | Iowa | Fair | 1968 | 7.3 m | 113,200 |
| PERRY CREEK CONDUIT | Iowa | Good | 2017 | 28.5 m | 91,000 |
| DES MOINES RVR RBRTRAYDR | Iowa | Good | 1962 | 263.3 m | 88,200 |
| N WALNUT CREEK | Iowa | Fair | 1958 | 8.2 m | 81,600 |
| TRIB TO FOUR MILE CREEK | Iowa | Good | 2018 | 11.9 m | 58,300 |
| WALNUT CREEK | Iowa | Fair | 1968 | 102.4 m | 58,050 |
| WALNUT CREEK | Iowa | Fair | 1968 | 102.4 m | 58,050 |
| E AND F AVE NW CEDAR RVR | Iowa | Fair | 1979 | 208.8 m | 57,600 |
| 17TH ST | Iowa | Fair | 1967 | 44.2 m | 56,600 |
| 17TH ST | Iowa | Fair | 1967 | 44.2 m | 56,600 |
| WALNUT CREEK | Iowa | Fair | 1958 | 126.2 m | 55,950 |
| 28TH STREET | Iowa | Good | 2005 | 49.4 m | 55,350 |
| 35TH STREET | Iowa | Good | 2005 | 49.7 m | 55,350 |
| 28TH STREET | Iowa | Good | 2004 | 49.4 m | 55,350 |
| 35TH STREET | Iowa | Good | 2004 | 49.7 m | 55,350 |
| 73RD ST& IA Interstate R | Iowa | Good | 1968 | 102.7 m | 54,350 |
| MISSOURI RIVER & RR | Iowa | Fair | 1966 | 514.2 m | 53,700 |
| CUMMINS PARKWAY | Iowa | Fair | 1967 | 70.4 m | 51,400 |
| CUMMINS PARKWAY | Iowa | Fair | 1967 | 70.4 m | 51,400 |
| US 6 | Iowa | Fair | 1958 | 53.0 m | 51,050 |
| 73RD ST& IA INTERSTATE R | Iowa | Good | 1968 | 99.7 m | 50,400 |
| WALNUT CREEK | Iowa | Fair | 1958 | 126.2 m | 49,750 |
| US 6 | Iowa | Fair | 1958 | 53.0 m | 49,750 |
| DES MOINES RVR BIKE PATH | Iowa | Good | 1958 | 217.0 m | 48,850 |
| DRAINAGE DITCH | Iowa | Fair | 1958 | 34.1 m | 48,850 |
| SOUTH SKUNK RVR OVERFLOW | Iowa | Good | 2017 | 20.0 m | 48,300 |
| WALNUT CREEK | Iowa | Fair | 1964 | 15.5 m | 48,300 |
| BALLARD CREEK | Iowa | Fair | 1964 | 13.4 m | 48,300 |
| 22ND ST | Iowa | Fair | 1968 | 55.8 m | 48,250 |
| 22ND ST | Iowa | Fair | 1968 | 55.8 m | 48,250 |
| NW 72ND ST | Iowa | Fair | 1958 | 38.7 m | 48,250 |
| DES MOINES RIVER & PATH | Iowa | Good | 1958 | 217.0 m | 48,000 |
| DRAINAGE DITCH | Iowa | Fair | 1958 | 34.1 m | 48,000 |
| OTTER CREEK | Iowa | Good | 2012 | 9.8 m | 47,500 |
| NW 72ND ST | Iowa | Fair | 1958 | 38.1 m | 47,050 |
| OVER UPP RR | Iowa | Fair | 2002 | 86.0 m | 46,900 |
| OVER UP RR | Iowa | Good | 2002 | 86.0 m | 46,900 |
| OVER NE 29TH ST | Iowa | Fair | 1959 | 86.9 m | 45,300 |
| FOURMILE CREEK | Iowa | Fair | 1959 | 58.2 m | 45,300 |
| 6TH AVE | Iowa | Fair | 1958 | 43.0 m | 44,550 |
| SAYLOR CREEK | Iowa | Fair | 1958 | 51.8 m | 44,550 |
| FOURMILE CREEK | Iowa | Fair | 1959 | 58.2 m | 44,500 |
| NE 29TH ST | Iowa | Fair | 1959 | 95.1 m | 44,500 |
| SAYLOR CREEK | Iowa | Fair | 1958 | 51.8 m | 43,750 |
| 6TH AVE | Iowa | Fair | 1958 | 43.0 m | 43,750 |
| KEO WAY | Iowa | Good | 2006 | 96.0 m | 42,800 |
| UP RR | Iowa | Good | 2000 | 90.8 m | 42,300 |
| DRAINAGE | Iowa | Good | 2000 | 60.4 m | 42,300 |
| US 69 | Iowa | Good | 2000 | 75.0 m | 41,550 |
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.