Is 55 N over Main Dtch
Pemiscot County, Missouri · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Is 55 N over Main Dtch in Pemiscot County, Missouri, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1971 and reconstructed in 1984, making it 54 years old at the 2025 inventory.
- It carries about 7,419 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 116 of the 207 inventoried bridges in Pemiscot County rated fair (56.0%); 19 (9.2%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated November 2024, on a 24-month routine inspection cycle.
- 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 → (36.19191, -89.75352)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 118 ft |
| Location | S 16 T 16 N R 11 E |
| NBI structure number | 1621 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Pemiscot County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Is 55 S over Drain Dtch No 7 | 1962 | 21,029 | Fair |
| Is 55 S over Main Dtch No 6 | 1969 | 19,915 | Fair |
| Is 55 S over Main Dtch No 6 | 1969 | 19,570 | Fair |
| Is 55 S over Drain Dtch No 4 | 1974 | 18,439 | Fair |
| Is 55 S over Drain Dtch No 12 | 1992 | 17,850 | Fair |
| Mo 84 E over Drain Dtch No 6 | 1930 | 14,654 | Fair |
All bridges nearby: Pemiscot County, MO bridge conditions · every bridge in Pemiscot County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.