County Rd # 620 over Drain Dtch
Dunklin County, Missouri · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Rd # 620 over Drain Dtch in Dunklin County, Missouri, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1989, making it 36 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- It is one of 105 of the 217 inventoried bridges in Dunklin County rated fair (48.4%); 18 (8.3%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (36.03179, -90.23201)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Concrete single box beam |
| Length | about 127 ft |
| Location | S 7 T 16 N R 8 E |
| NBI structure number | 24123 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Dunklin County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Mo 84 E over Buffalo Dtch | 1922 | 12,954 | Fair |
| US 412 E over Buffalo Drain Dtch | 1948 | 9,424 | Fair |
| US 412 E over St Francis Rvr | 2002 | 7,687 | Fair |
| US 412 E over Red Devil Dtch | 1968 | 7,608 | Good |
| US 412 E over Kinnemore Dtch | 1968 | 6,988 | Good |
| US 412 E over Pole Cat Slu | 1963 | 6,473 | Fair |
All bridges nearby: Dunklin County, MO bridge conditions · every bridge in Dunklin County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.