CR N423-c over Ditch 21 B
Mississippi County, Arkansas · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- CR N423-c over Ditch 21 B in Mississippi County, Arkansas, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1960, making it 65 years old at the 2025 inventory.
- It carries about 162 vehicles a day (traffic count year 1987).
- Its listed owner is the county highway agency.
- It is one of 178 of the 309 inventoried bridges in Mississippi County rated good (57.6%); 22 (7.1%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (35.90157, -90.06243)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Concrete channel beam |
| Length | about 123 ft |
| Location | 3 Mi NW of Dell |
| NBI structure number | 000000000003409 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Arkansas department of transportation.
Busiest bridges in Mississippi County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-55- 12- Lm 31.40 over Ditch No 4 | 1960 | 20,074 | Fair |
| I-55- 12- Lm 37.86 over Ditch No 51 | 1961 | 20,040 | Fair |
| I-55-sec 12- 50.00 over Ditch No 43 | 1962 | 19,000 | Fair |
| I-55-sec 12- 52.30 over Ditch No 41 | 1962 | 19,000 | Fair |
| I -55 Sec 12-69.84 over Ditch No 30 | 1963 | 19,000 | Fair |
| I-55 Frontage Rd-l over Ditch No 6 | 1960 | 18,899 | Good |
All bridges nearby: Mississippi County, AR bridge conditions · every bridge in Mississippi County · Arkansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.