Missouri has 24,647 bridges on public roads, according to the FHWA National Bridge Inventory. Of those, 2,163 are rated in poor condition — a rate of 8.8% — 31% above the national average of 6.7%. Another 13,304 are in fair condition, while 9,180 are in good condition.
Use the interactive Missouri bridge map below to explore every bridge, color-coded by condition. Click any cluster to zoom in, then click an individual bridge for its route, structural ratings, year built, daily traffic, and last inspection date. Filter by condition using the checkboxes, or switch to satellite view to see bridges from above. For a national comparison, see the full US bridges interactive map.
Missouri Bridge Conditions by the Numbers
- 24,647 total bridges on public roads in Missouri
- 2,163 in poor condition (8.8%) — above the national average of 6.7%
- 13,304 in fair condition (54%)
- 9,180 in good condition (37.2%)
- Oldest bridge in the inventory: EADS BRIDGE, built 1874
Oldest Bridges in Missouri
The oldest bridges in Missouri date back to the 1870s. The ten oldest Missouri bridges still in the national inventory:
| Route / Facility | Crosses | Year Built | Condition |
|---|---|---|---|
| EADS BRIDGE | 1ST ST UNDERPASS METR | 1874 | Fair |
| COUNTY RD 281 | POMME DE TERRE RVR | 1890 | Poor |
| COUNTY RD 611 | MARIES RVR | 1893 | Poor |
| GLADSTONE BLVD | ANDERSON AVE | 1897 | Good |
| COUNTY RD 1000 | SPRING RVR | 1898 | Poor |
| RT AB S | CLEAR CR | 1900 | Fair |
| MO 32 E | BR OF GOODWIN CR | 1900 | Fair |
| RT O S | OWENS CR | 1900 | Good |
| RT AA S | HODGE CR | 1900 | Fair |
| RT N E | BR OF PLATTE RVR | 1900 | Fair |
Most Concerning Missouri Bridges: Poor Condition and High Traffic
The bridges of greatest concern combine a poor structural rating with high daily traffic loads. These Missouri bridges carry the most vehicles per day while rated in poor condition:
| Route / Facility | Crosses | Daily Traffic | Year Built | Deck | Superstructure | Substructure |
|---|---|---|---|---|---|---|
| IS 270 E | CST CONWAY RD | 182,944 vehicles/day | 1964 | Poor (4) | Poor (4) | Satisfactory (6) |
| IS 270 E | CST WEST PORT PLAZA DR | 137,112 vehicles/day | 1965 | Fair (5) | Poor (4) | Satisfactory (6) |
| IS 270 E | MALINE CR | 111,723 vehicles/day | 1931 | N/A | N/A | N/A |
| RT W E | BR BLUE RVR | 104,024 vehicles/day | 1969 | N/A | N/A | N/A |
| IS 170 E | RVR DES PERES | 97,246 vehicles/day | 1968 | N/A | N/A | N/A |
How Missouri Bridge Conditions Are Assessed
Bridge condition in the NBI is determined by ratings of three structural components — deck, superstructure, and substructure — on a scale of 0 (failed) to 9 (excellent). A bridge is classified as good when all three components score 7 or above. It is classified as poor when any component scores 4 or below. Ratings of 5 or 6 on any component with no component below 5 result in a fair classification. MoDOT coordinates inspections across Missouri in line with FHWA standards, with most bridges inspected on a 24-month cycle.
Frequently Asked Questions
How many bridges in Missouri are in poor condition?
2,163 of Missouri’s 24,647 bridges are currently rated in poor condition by the FHWA National Bridge Inventory, a rate of 8.8%.
What is the oldest bridge in
The oldest bridge recorded in Missouri’s NBI inventory is EADS BRIDGE, built in 1874.
What does a poor bridge rating mean?
A poor rating means at least one of a bridge’s three key structural components — deck, superstructure, or substructure — has been rated 4 or below on the NBI 0-9 scale. A rating of 4 is defined as “poor condition,” and ratings of 3, 2, 1, or 0 indicate increasingly serious deterioration. Poor-rated bridges are not necessarily unsafe or closed, but they require priority attention and monitoring.
View all 624,000+ US bridges on the national interactive map
Compare with neighboring states: Arkansas bridges map | Illinois bridges map | Iowa bridges map | Kansas bridges map | Kentucky bridges map | Nebraska bridges map | Oklahoma bridges map | Tennessee bridges map
